How you can Combat Growing Contact with Blue Light

 

Blue light and the effects on your eyes

Video taken from the channel: VSP Vision Care


 

Is blue light harmful to your eyes?

Video taken from the channel: UW Medicine


 

Experiment: Red Light vs Blue Light -How Spectrums Affect Plant GrowthLED vs CFL

Video taken from the channel: AlboPepper Drought Proof Urban Gardening


 

How to Protect the Eyes from Blue Light 5 Tips

Video taken from the channel: Doctor Eye Health


 

Top Tips to Combat Digital Eyestrain and Harmful Blue Light Exposure

Video taken from the channel: CovalentCareers Optometry


 

What is Blue Light? Is Blue Light Bad for Your Eyes

Video taken from the channel: Doctor Eye Health


 

How blue light from computer screens affects vision and eye health

Video taken from the channel: Demystifying Medicine


There’s no shortage of ways to combat blue light, and here are four of the most effective steps you can take to beat back blue light: Avoid bright backlight screens starting roughly 2-3 hours before bed, or if you must work late, use a blue light filter on whatever electronic device you’re using. Blue light has a wavelength of 380 nm to 500 nm, which means it is one of the shortest, highest-energy wavelengths. These waves create a glaring effect on the eyes and can lead to eye fatigue, dry ey.

1 day ago · Exposure to blue light affects your production of melatonin, a natural hormone that the body releases when it gets dark outside, according to the National Sleep Foundation. As the levels of. Whether it’s in ads for blue light blocking glasses or cautionary tales of how screens can cause insomnia, blue light has become a buzzword.

Since creating smiles is always our goal and blue light exposure is a concern among our clients, we thought we’d take this opportunity to share resources you need to better understand blue light. If constant exposure to blue light from smart phones, tablets, and computer screens is an issue, there are a few ways to decrease exposure to blue light: Screen time: Try to decrease the amount of time spent in front of these screens and/or take frequent breaks to give your eyes a rest. Blue light is usually referred to as radiation with wavelengths between 400 and 500 nm. This waveband is within the visible spectrum, has relatively high energy, and has pronounced effects on plant growth and flowering.

Our perception of blue light. The crystalline lens and cornea are still largely transparent and overexposed to light, so too much exposure to blue light is not a good thing. Parents should supervise and limit the amount of screen time their children are permitted. Rethink LED Lighting. Low-heat and energy efficient, LED lights can be extremely effective in helping your greenery thrive (use blue light for foliage and red for flowering plants).

Invest in a bright light one that delivers 1,000 lux (a measure of light intensity) or more of blue-hued light at eye level to put on your desk at work. Studies show that most office. For example, staring at a clear blue sky (scattered blue light) is a low risk, while looking directly at the sun can begin irreversible damage almost immediately.

Prolonged direct viewing of bright light sources must always be avoided, especially at short distances.

List of related literature:

Avoid heavy crowding of plants and keep the light levels bright.

“Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible” by Jorge Cervantes
from Marijuana Horticulture: The Indoor/Outdoor Medical Grower’s Bible
by Jorge Cervantes
Van Patten Pub., 2006

Improve the ambient light: If possible, change the lighting around your work area to natural sunlight or “full-spectrum” lights that simulate natural sunlight.

“Take Off Your Glasses and See: A Mind/Body Approach to Expanding Your Eyesight and Insight” by Jacob Liberman
from Take Off Your Glasses and See: A Mind/Body Approach to Expanding Your Eyesight and Insight
by Jacob Liberman
Potter/Ten Speed/Harmony/Rodale, 2011

Treating them at the end of the day with a strong blue light of at least 20 watts per square foot (220 watts per square meter) of 6,500­7,000 Kelvin or higher, aquarium light actinic blue) may control the height a bit.

“Marijuana Grower's Handbook: Your Complete Guide for Medical and Personal Marijuana Cultivation” by Ed Rosenthal, Tommy Chong
from Marijuana Grower’s Handbook: Your Complete Guide for Medical and Personal Marijuana Cultivation
by Ed Rosenthal, Tommy Chong
Quick Trading Company, 2009

Grow in a light/dark cycle 16:8 h at 21°C under high fluorescent light (Osram L58 W31, Photosynthetically Active Radiation 120 μmol/s/m), and water regularly using Mannalin-A at 0.5 g/L. For further instructions on growth conditions, please see Chapter 1 in this book.

“Arabidopsis Protocols” by Julio Salinas, Jose J. Sánchez-Serrano
from Arabidopsis Protocols
by Julio Salinas, Jose J. Sánchez-Serrano
Humana Press, 2006

Use full-spectrum bulbs in the areas where you spend the majority of your time.

“Feng Shui Your Life” by Jayme Barrett, Jonn Coolidge
from Feng Shui Your Life
by Jayme Barrett, Jonn Coolidge
Sterling Pub., 2003

There are many techniques and products that can help reduce our exposure to blue light.

“The Circadian Code: Lose Weight, Supercharge Your Energy, and Transform Your Health from Morning to Midnight” by Satchin Panda, PhD
from The Circadian Code: Lose Weight, Supercharge Your Energy, and Transform Your Health from Morning to Midnight
by Satchin Panda, PhD
Potter/Ten Speed/Harmony/Rodale, 2018

Provide a photoperiod of 16 hours light, 8 hours dark using plant grow lights (fluorescent or incandescent).

“BSCS Biology: A Human Approach. Teacher's guide” by Biological Sciences Curriculum Study
from BSCS Biology: A Human Approach. Teacher’s guide
by Biological Sciences Curriculum Study
Kendall/Hunt, 2003

This is inconsistent with the general trend mentioned above and contrary to hypocotyl inhibition due to CRY absorption of blue light.10 Growth under sole blue light may cause morphological effects which do not follow typical alterations associated with increasing blue light when it is part of a broader light spectrum.

“Comprehensive Biotechnology” by Murray Moo-Young
from Comprehensive Biotechnology
by Murray Moo-Young
Elsevier Science, 2019

While you can use red and blue light exclusively and successfully, only a few species of plants are able to grow well under only red or blue light indefinitely.

“Gardening Under Lights: The Complete Guide for Indoor Growers” by Leslie F. Halleck
from Gardening Under Lights: The Complete Guide for Indoor Growers
by Leslie F. Halleck
Timber Press, 2018

Many herbs, especially low-growing ones, do well under artificial lights for 14 hours a day.

“What's Wrong With My Houseplant?: Save Your Indoor Plants With 100% Organic Solutions” by David Deardorff, Kathryn Wadsworth
from What’s Wrong With My Houseplant?: Save Your Indoor Plants With 100% Organic Solutions
by David Deardorff, Kathryn Wadsworth
Timber Press, 2016

Alexia Lewis RD

Registered Dietitian Nutritionist and Certified Heath Coach who believes life is better with science, humor, and beautiful, delicious, healthy food.

[email protected]

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  • it’s a marketing scam blue light from phones are not harmful, it’s the amount of time you spend that’s harmful not the blue light. People just go along with this narrative because when they are on their phones for a while it hurt their eyes, but this is because of your eyes being focused on one thing for long periods of times. The sky is actually more intense of a blue light and we as humans have been fine. The study with the mice was done with the mouse having a pure and focused blue light directly to their eye balls, like dude of course that’s gonna damage your eyes a little. Don’t believe this stuff. And if your really worried, then take breaks from your phone, and turn things on to dark mode or night mode. I phone has that. Basically every platform too. There are some solutions to a made up problem. Don’t spend money out of fear.

  • Very interesting Sire. Today it is not often to see these “Gods in White“ are exposing themselfs on the internet adressing real health themes but medics are mostly sales agents for pharmaceutical companies (thats a real problem in Canada).
    I wonder how much damage these tablets are causing to the eye although they improved a lot regards IPS screens but I have found smaller low resolution non IPS screens like on older netbooks 10 to 13“ screens are the worst possible for eye fatigue. For me at least. An 7 to 8“ IPS tablet does not nearly as much give me fatigue as older lcd screens used to do. I consider the IPS technology as the single mayor improvement on eye protection since it aliviates the stare to the screen trying to find constantly the sweet spot. Considered on an tablet I normally just look at the screen 60% of the time only since I use it for listening mayorly like in this video the info comes from listening and not staring constantly at the doctor who speaks.
    What about the old CRT monitors? They shoot electrons onto the heavy glass and are constantly magnetized. Not to speak of the flickering of very early models. On most old CRT monitors I had an screen protector in front of it. They must have damaged the eyes incredible much. Can you elaborate on that as well? I wouldnt be surprised if I lost my eye strengt on these CRT monitors and on smallish lcd displays low resolution. I use glasses only for driving long distance and on front of the PC, not in daily life.
    I read glasses are needed because the muscles in the eye fatigue and so focusing and adjusting isnot working anymore which then glasses have to offset. Making eye muscle exercise they say help like looking in all directons of the circle up down sideways of an imaginary clock but how to strenghten far and near muscles? Big screens are IMHO alleviating the eye fatigue considerably.

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  • My symptoms are dry eyes, dry mouth and dry nose when I wake up in the morning. I’m guessing none functional mucus membranes. I’ve had these symptoms on and off for two years now. This is for anyone looking to do research on the long term effect of it all. I just discovered the blue light filter on my Samsung after 2 years of research and lack of knowledge. Cellphones should come with warnings like some other products that say, ‘May cause cancer’. I didn’t start smartphone use continuously until early 2016. This is about the time they introduced 4g. #protectyoureyes

  • I see a big flashlight in my eye ALL THE FUCKING TIME, not only at night, and even my oph doesn’t kow what is that
    Sometimes the light is blue, sometimes it’s like purple and sometimes red
    It makes me wanna die

  • There are several components to cures for bad eyesight. One plan I found which successfully combines these is the great gazer fix (google it if you’re interested) definately the most useful resource that I have ever seen. Check out all the interesting info.

  • I done lasik operation two years in eyeq hospital, rander, surat, Gujarat. Now i have many problems related to my eye like eye pain, eye strain, Glare in night time, dry eye, headpain etc. i visited many time my lasik doctor ‘paresh vaidya’ he not give me any type of solution. so please give me some proper solution. I can give you some pictures for more study about my problem. This is my e-mail address ‘[email protected]’ you send me ‘hi’
    i send you some pictures.

  • Well this video was just extraodinarily BRILLIANT tell us how dangerous 380-400nm light is while simultaneously exposing our eyes to a neon blue screen.

  • I’ve been binge watching videos and doing a lot of surfing the net on my laptop for over a week, and I’ve noticed having more headaches, my sleeping pattern being thrown off, and even blurred vision at times (never had this problem before in my life). I just turned Iris on on my laptop today and I already feel my eyes are more relaxed. Oh and Julie, my eyes are recovering even faster now thanks in part to the light I see, becoming beautified by simply bouncing off of you, before reflecting into my eyes, massaging them all the way into my brain. Ok, I need to sleep now.

  • LEARN MORE:
    Controlling Tip Burn in Lettuce: https://www.youtube.com/watch?v=gHWf4Hfi3hA
    Light Cycle Duration and DLI: https://www.youtube.com/watch?v=dQlOJ1zvoPI
    How does Color Spectrum / PAR Light impact plants? https://www.youtube.com/watch?v=O3dxjk_E2Ac
    Calculating LED costs vs payoffs: https://www.youtube.com/watch?v=Lhb4oK-9kNY
    What does PPF/Joule mean? https://www.youtube.com/watch?v=99lL68N20Bc
    What about coverage area? https://www.youtube.com/watch?v=lK28aiRQ_Vs

    LED Light growth tests:
    Infinity Linear (LED vs T5): https://www.youtube.com/watch?v=PfPmdKabemM
    UFO SMD vs Single COB LED w/ Time-lapse: https://www.youtube.com/watch?v=x7D3S2CYSPw

  • I love blue light one of my favorites actually is very healthy for you as long as your only getting it from sun light contrary to erroneous popular belief. But this is very much 120% true man main sources of blue light can and will f*c* you up!!!!!

  • Oh noes, stay inside, hide.
    There’s a huge blue thing outside.
    Don’t look up.

    Alternatively, grow a brain.

    And remember, if your glasses really blocks blue light, everything blue will appear black
    and some black things will look burgundy.

  • Hi Dr. Thank you very much for the informative video. I do have a question regarding blue light:
    Back at home i have LED bulbs in my room that i have set blue & purple when ever i am in my room playing video games or working. For me i thought it was a cool display for my room but now that i watched this video I am scared lol.
    Is it dangerous to be surrounded in these types of lights? I have them on for about 2-4 hours and i had them for a year now. I recently got Keratoconus and my eyes became very sensitive to bright lights. I do have eyeglasses that hav the “protective” film for electronic devices.
    Any advice?

  • Sorry if you addressed this and I missed it… I was wondering if there was an optimal time amount of light exposure per day in addition to your research here about strength and wavelength. I would imagine that most plants would be optimized to grows best given a duration of sunlight that would be present during the growing season of their natural habitat; however, is it possible that we can train a seedling to make efficient use of 24/7 light exposure through grow lamps?

  • Just got my Brooks Bothers sunglasses with prescription lens. I got glare and blue light ock. They are amazing g. Bought them at Lens Crafters. PS Get out of Minneapilis and move to Poetsmouth, NH.

  • re Circadian Rhythms: one of the things you were routine hear from sleep specialists (especially for people with circardian disorders) is to make sure you get exposed to bright light immediately upon awakening (if I recall correctly that specific 480nm wavelength is critical). So, I guess my question in light of this is: do we want to be blocking blue light during the first few hours of the day, and could it possibly weaken a persons circadian rhythm.

  • I ordered blue light glasses from a glasses company in the mail bc my eyes have been so sore and ive been getting headaches after using working from home lately, and my boyfriend is in the military, hes currently deployed so we facetime all the time.. long story short my eyes are tired of looking at screens! I just cant wait until they come

  • Blue is also the color which the eye has the most problems focusing. Possibly because the only blue things in our evolution were the sky, so there was no evolutionary advantage to treating it specially.
    I use a sepia background in Kindle and blue light “blockers” on the electronics. The new phones & tablets all offer that.

  • I’m 35 years old and I have perfect 20/20 vision, never needed eyeglasses or had problems with my eyes my whole life.
    Exactly one week ago, I started playing a brand new game and it was the first game I’d never played in HDR. I sat exactly the same distance away from my 55″ tv I have since I’ve owned it (6ft away) and have never had a problem before. After 3 days of playing the game ( gaming sessions averaging between 1.5-2 hours at a time) there was a moment in the game where a giant bright blue hologram popped up on screen taking up about half the TV screen length. As soon as that hologram showed up on screen, after looking at it for only a few seconds, I felt my eyes widen and then all of a sudden I felt something shoot into my eyes like needles that was painful enough for me to throw my head down and cover my eyes. It has been 1 week since then, and I have experienced soreness in the back of my eyes, eye fatigue, sensitivity to light, sore pain between my eyes, in the back of my neck and in the back of my shoulders. Now most of the pain from the places I mentioned have almost completely gone away, but the sensitivity behind & between my eyes & eye sensitivity to light is still lingering. I’ve experienced no loss of sight, no blurriness of vision, my eyes are still 20/20 and I can still see perfectly clear as I always have.
    I’ve since rearranged my TV viewing distance and have moved my sitting position from the TV from 6ft to now 12ft from the screen.
    Since this all happened I immediately went out to my nearest Walmart and bought a cheap pair of blue light blocking glasses (blocks only 30%) and have reduced my gaming sessions. I’ve also been window shopping on the internet for a better pair a blue light blocking glasses that would better suit me.
    Bit I’m somewhat at a Crossroads between
    Mid-tint (65%) & High-tint (90%) because while the 30% do help a little, I still find myself squinting and feeling eye fatigue.
    I hope this information was helpful and that my experience can help better understand blue light and what it can and does do.

  • Dr. Allen, If you aren’t doing any live professional, Continuing Medical Education (CME) presentations for medical providers, you definitely need to consider doing so. You’re an excellent, knowledgable physician speaker!

  • I really hate that this guy is not just getting on the topics I’m almost 10 minutes in and I wanted to stop watching 5 minutes ago. He’s just yapping on

  • Dear eye doc, a request for a future video;

    Could you please do a video on Corneal Arcus?
    In my own case I am 35 but I have had it since mid-late 20s at least. It is quite severe, and aside from it making me look like I am 90years old it looks like it would interfere with vision if it got any worse. I recently had blood lipid evaluation and it is apparently excellent, way above baseline ideals. So why do I have it and no one else in my family? Is there anything in my diet that could be causing it, are there any ways to reduce it, and is it something to get worried about in terms of either eye or full body health?

    thanks in advance

  • I have blue light glasses but the coating looks blue. Does this type protect against the right wavelength? Also does this type of AR coating also reduce glare or is it that each type of AR coating serve only one purpose?

  • First thing I said to myself was that the plants are too close to the lamps. Would have been interesting to see how it would have turned out if the right distance was used.

  • Hi I am from India and I love you too much but u can’t understand this thing if u understand then reply me I l you too much white colour dress girl

  • I bought an BenQ GW2480 Monitor (24″) 1080p. It’s an IPS Display which means no eye fatigue for finding the sweet spot on Screen sharpness (almost all angles have a sharp Picture) which is one of the most important improvements over traditional LCD Displays. As well this BenQ Monitor is aproved of TUV Rheinland for flicker free and Low blue light. As well it Auto adjusts brightness (has an light sensor). Becauso of These Features I bought this Monitor, besides it was inexpensive and of an somewhat known brand. I already appreciate now within the first week of the low blue light and flicker free as well as brightness adjustment Features since it drastically improved the eye protection besides the benefits of the IPS Panel. Low blue light is set to minus 50% and brightness is drastically reduced as well in order to not force the eyes. I even take off glasses which I would have never done before.There is an Asus Monitor having These Features as well while other Mayor brands dont have These benefits.It has different Standard modes as well but those have to me an blinding sense effect since they are to bright while (probably) not filtering out the blue light normal, gaming, movie, etc mode.As well there is an red light filter and an green light filter but those seem to be for Special needed people (it distorts normal colours when turned on). Blue light filter seems not to distort normal Colors.Buy a proper Monitor instead of wearing coloured glasses.Till now the Monitor is Holding up very well and it was well worth the Investment.

  • Yellow light exists, yes, but we have no receptors for it. Our brains extrapolate yellow from the ratio of blue:green in what we do see. Which means “yellow” is subjective, we may all see it a little differently.

  • Dr. Ellen, I had a tragedy related with blue light. In August, 2019, I got 9 times blue light facial acne treatment in Seattle Sun Tan Light Spa, eight of nine times their working staff forgot to give me eye goggle. After that my left eye suddenly lost most of vision, barely could see anything and right eye vision dropped sharply. Medical report says “Age related (WE DON’T HAVE THIS PATIENT PRIOR MED DOCUMENT, CAN’T STATE IT IS CAUSED BY BLUE LIGHT, EVEN THERE ARE SUCH POSSIBILITY) combined form cataract, bilateral
    Meibomian gland dysfunction left eye, upper and lower eyelids
    Meibomian gland dysfunction right eye, upper and lower eyelids
    Keratoconjunctivitis sicca, not specified as Sjogren’s, bilateral
    Macular pucker, left’
    In Jan, 2020, processed cataract surgery for both eyes, now vision is worse day by day, new report says, “Secondary cataract obscuring vision, left
    Secondary cataract obscuring vision, right.Cystoid macular edema, bilateral”.
    now i can’t work, read, drive, cooking, etc., my both eyes are painful every minute and every second, just like eyeball were dig out and hollows left there and pain are trapped there.

    Maybe this is a good example to illustrate how blue light damage your eyes.

  • I was recently diagnosed with dry eyes. and my eye doctor prescribed me blue light and sunlight protective glass and eye drops(natural tear).

    I bought the glasses and they have AR from what I gathered from your videos. The store keeper I bought the glasses from specifically warned me to not get it in contact with water. and to only clean it using the piece of clothing he provided(which I doubt are micro fibers bc they wouldn’t clean as good)

    When I was looking for other methods all I could find has water involved.

    What I’m asking is is there any harm in using water to clean my glasses?

  • Check out other clips on YouTube debunking claims that the (negligible) blue light emitted from screens causes eye damage interviews with leading ophthalmologists.

  • Great that you trained at a VA hospital, which is where I’m receiving lots of eye treatment here in San Francisco. It seems a typical trait with many videos is really rapid speech; my only criticism of your wonderful videos.

  • Hi! What do you recomend for someone who works in design? We need to see color, so we really prefer transparency and so on for that but our eyes are our main tool… can ypu help please?

  • Hello. I have to reduce the blue light to avoid the growth of the eye disease (pinguecula). What glasses should I wear? Any brand in special?

  • You forgot to mention that you can block blue light on your smart phone and Windows 10. For earlier versions of windows, you can download free software to control blue light.

  • I don’t use blue light glasses but my eyes hurt when I look around and it hurts so bad and I’m always looking at my phone and yes I have a lot tension in the middle of my eyes and I’m not blinking as often we’re should I go to get help I been watching your videos tryna see what can I do blue light effect my eyes and one time I was playing basketball I couldn’t even look at the sun it hurted so bad

  • I just found out your amazing channel and have a burning question. I was demonstrated a 1 Watt 445 nm blue laser. I was shown how it burns a few things; and I watched the dot of the laser in bright daylight from about one meter distance about three sessions 15 seconds each. I quickly realized that something is wrong; and discontinued any further observation. I am now severely concerned that this exposure might have damaged my cornea or retina even. Is this a meaningful concern?

  • The hole blue light being harmfull for the eyes is complete lie. By going outside you get 30 times more blue light on your eyes than waching your phone phone, tablet or computer. The blue light only effects your awaiknes. Nothing else. The reason why waching our digital device is not good for a long periods of time is because we are so focused on it that we dont blink. Next time pls do your research better beafore makin misleading videos like these

  • Are Phiilips Hue changing color lights harmful? I commonly used blue for a comfortable room color, with indirect light from the bulbs.

  • I am not totally sold on blue light causing issues, it is a higher energy photon for sure, but the white point (D65/6500K) of natural daylight contains tons of blue light, though the sun definitely contains much more lower frequency light. Either way, blue filter glasses are cheap and changing to a warmer color temperature on your PC/Phone is easy enough:)

  • This is your best video yet. Very helpful. I have retina issues. I was thinking back as to when it happened. It was Dec 2014 after I bought my first smart phone in Nov 2014. I was also working 10 hours a day at PWC. I remember watching TV in my hotel room and my eye popped. The light became hard to endure. The beginning of a long road. I have never heard about this from my optometrist or my opthamogist. I’m my own doctor. I’m getting some blue glasses.

  • My latest prescription glasses has blue light blocking (Essilor Crizal Prevencia) that my optician added at no cost. As you said, it has a light yellow tint which is sometimes annoying. I found no real difference on overall comfort so I am not sure I will ask that for the next ones.

    The most debatable link is with eye strain. As you said, the most common factor is forced eye convergence. I was subject to eye strain when with prescription no longer matched the evolution of my sight (that happened a lot in recent years for me) so it had nothing to do with blue light.

    I remain skeptical that it is a big risk to be considered. UV light, for sure, it is ionizing radiation. Blue light, not so much.

  • Hey doc I have autoimmune retinopathy. It’s very rare I inherited it from my mother. Nobody has a clue what to do other than monitor my condition

  • Can you do a video on pigment on the sclera of the eye? I have a brown yellowish spot on the white of my left eye near my iris and it developed when I was younger. It’s always bothered me and my eye doctor said its normal since it’s just extra melanin and posses no risk, but I heard that you can get it removed for cosmetic reasons? Do you think that’s a harmless idea or risky?

  • I was going to ask my eye doc about this when i went in. I don’t have time to watch the entire right now. Is it possible for blue light to be one cause of eye floaters? I want to blame something for them, besides Obama. I might ask the doc about eye wear for computers, since computer industry is my career.

    I also remember when i was a kid that everyone was told to stay away from CRT TVs. And i repaired some computer devices when I was younger for fun, and some CRTs said caution, emit xray

  • I’m curious about your opinion on one particular aspect of blue light. From what I understand, the varying refractive indices across the visible spectrum results in a fair amount of longitudinal chromatic aberration within the eye. Do you think that because blue light is myopically defocused (if focusing on almost any other color), it can contribute to eye strain? I imagine that this would only really occur when staring at a computer screen when the eye is trying to focus on different colors up close, and is being bombarded with some amount of blue light constantly in the edges of text or images. Or, is this not really an issue regarding eye strain? Thoughts?

  • I don’t have blue light blocking glasses, but I put an app. With a blue light yellowish filter on my phone timed to go on around dusk. Annoying at first, but you get used to it.

  • I have UV protection layer for my glasses for myopia. Is this enough to protect my eyes against digital devices?
    Excellent 1 hour video by the way. ��

  • First and foremost Joseph I’d like to say thanks for the wealth of information provided within this hr of information and taking your personal time to provide this information. ($0 Co pay here people ��)

    People this is more than worth an HR of your time so please watch this in it’s entirety for the best benefit and be patient as you never know how this may impact your eye health or a loved one.

    I appreciate all of the scientific information as well as the citation of information for doing additional studying myself personally as I do have a heavy biology background but currently I am in the corporate I.T world and I spend beyond 9 hrs per day in front of high resolution displays with high Nits of brightness more often than not.

    I am near-sighted (myopia) currently my contact lens setup is B&L Bio true for my daily disposable which work very well because naturally given my career I blink less and always have a screen of sorts nearby(sad I know) and I also have crazy light sensitivity which doesn’t help(transitions contacts on order as well by the way)

    I have found the use of darker yellow lenses with a bit of plus power i.e Gunnar glasses and I even have a pair of z87 rated safety glasses with yellow lenses that also have a bit of plus power make a huge difference for me personally.

    Eye strain is no joke and if anyone is in a similar field especially doing very focussed work any coding, terminal work etc… Check out Joseph’s videos on both the eye massages as well as doing hot and cold compresses it will really help if you devote the time to it and take care of your eyes, oddly enough naturally I’ve always done similar massages and again it works.

    Something not mentioned that I know some people cannot tolerate it but again these are MY personal experiences, however beta carotene although many limited studies say otherwise works well for me….��may sound like nonsense but I can definitely a difference when increasing my beta carotene intake. I am exploring lutein and other eye vitamins as well too and looking forward to any videos of the various ones out here you’ve experienced personally Joseph as well as I’ve been seeing more drops on the market too both preserved and non preserved that I hope you’d review to get your take on.

    Also another helpful tool for those of you which is all of you using any digital device….as someone who is in the I.t field many are unaware that their Samsung, apple, htc, etc… All the major brand of smart phone as well as computer manufacturers HAVE OPTIONS EVEN BUILT INTO THE SOFTWARE as far as built in blue light filters…apple’s IOS operating system has a built in blue light filters called “night shift” it is also built into the software of Apple’s MAC OS software PLEASE USE THEM it will cancel majority of the blue light emitted from the device and is very significant and is clutch when you don’t or can’t remember to throw on your Blue �� blockers ��

    If you’d like some product review suggestions Joseph or some solid information from the I t world on how this exact thing is addressed just let me know let me know I have a few in mind.

    Great work and keep the videos coming we all have two eyes that we need to take care of for life!

    Now it’s time to go study in the name of Eye Health�� #healthiswealth

  • Thanks jo alley i got a lot from watch this video i post a like to or thump up. Nicely done information al that important of now how to protect one eye’s.

  • Great information you have provided on this topic.
    I post this on 30th Nov 2019 and I found out that I have Uveal Melanoma in my right eye after an eye exam at an optician back in July.
    Their initial thought was a detached retina but on closer inspection after quick fire appointments at 2 different hospitals they found that it is a large size cancer growth on the left side of my right eye, which I could not see or have any idea about until I noticed a dark curtaining to the side.
    I was then referred to Moorfields eye hospital in London for further tests and imaging.
    Following this I did all the research I could to find anything that may help reduce and stop the growth and any metastasis through the body.
    I have been taking THC cannabis oil (care of The Rick Simpson film Run From The Cure), Vit D3 and milk thistle drops in water daily.
    I found out about GcMAF here in England but how the MHRA (the UK’s FDA) had shut them down and seized all accounts and imprisoned the top CEO’s etc for trying to help the people of this world who are suffering with various diseases etc.
    Managed to find another supplier of a similar supplement, Imuno (an improved replacement for Rerum) which is still available.
    Watched most videos of Barbara O’Neill who promotes healthy eating etc to combat illness and diseases naturally, who has been given a life ban by the CCCH in Australia after her popular work in seminars grue.
    Also the story of Joe Tippens Cures Terminal Cancer with Pet Medicine Fenbenzadole.

    And the latest info I have found is that a compound (FR900359) from the Primrose family of plants is looking promising in its effects on Oncogenic Gαq and Gα11 Inhibition in Uveal Melanoma, although it has been around for a good few years I believe the information is still in its early stages of finding a so called cure for the disease. Invitro and invivo tests on mice have been conducted so far.
    My last check up was yesterday and although my CT scan was good the melanoma is aggressive, may grow slowly but has burst and filling the eye with liquid and now detaching the retina, meaning I am running out of time before resulting in removal of the eye.
    Frustrated and angry is putting it mildly… but still trying to find another way.

    So my question to you is do you have any knowledge of the latest tests of this new compund. Maybe you could do a video regarding this subject of the eye!!??

  • I use blue light blocking glasses for my computer work each day. Though I work in the VR space, so I am also looking into blue light blocking lenses for those tougher weeks I have to do extended testing before software releases.

  • Hey

    My eye strain is consistent over a month now
    And I do have a mild Myopia minus 0.5 and minus 0.9

    Do these glasses help? 4 me I mean
    Or shall I switch to a prescription glasses

    Thanks!

  • I work from a computer all day. I was told by my job to get a screen protector, do they sell blue light protectors for dell and acer laptops? Anyone know where I can get one?

  • This video proves to me “grow lights” sold as such to gardeners are an idiotic waste of money. The only plant that didn’t look like a mutated freak show was the CFL. Fast forward 3 years what is now a “normal” light bulb with a full spectrum color temperature even has “grow” on the labels. Its all I ever used and all I ever will use. Thanks for the info. You’re content is great!

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  • Great tips! Thanks for talking about the differences between the different kinds of blue light lenses that block blue light wave lengths that affect sleep. This is something that could be discussed more in the broader conversation around blue light glasses.

  • I like your channel but I find the blue light an absolute crock of… if blue light is terrible for you why would different levels of blue light be ok? Seems like a computer would just say 100% blue light free not well pick how much you want to damage your eyes today. I can come up with lots of other questions I would like debunked, for now I’ll save that blue light money for carrots.

  • To be honest, I wear glasses that are graded because I’m myopic (nearsighted). Even tho I have glasses, I really like your eyes and the way you deliver your speech. Keep up the good work my friend!

  • the optometrist wears glasses!!! She never tried to get rid of it?? Has she been playing computer games for a long time when she was young…?

  • I can’t watch this video bc the lines are really messing with my vision/balance, anyway new Subscriber. Can no one else see the lines? I can’t believe no comments were left about it.

  • Watch the video!! “Why you don’t need blue light lenses: Hidden camera investigation (Marketplace)” this blue light l is basically fraud on a large scale

    and If you’re still scared, here’s a better idea than buying glasses:
    Android Blue light filter
    iPhone Night Shift
    PC f.lux/Night Light
    Linux Redshift
    Windows 10 has it built-in, an option called Night Light
    MacOS and iOS also have it built-in

  • Dr. Pls pls reply ������
    If a person is wearing anti glare blue light cut (filter /blocking) glasses with UV 400 protection.
    Does he also need any other protection? (like getting dark tinted glasses {like photochoromic lens} to get protected from sun ’s bright light and digital screen lights)
    If there is anything left, then please inform me.

    Is that person 100 % safe from sun ’s bright light and digital screens lights?

  • Dr. Pls pls reply ������
    If a person is wearing anti glare blue light cut (filter /blocking) glasses with UV 400 protection.
    Does he also need any other protection? (like getting dark tinted glasses {like photochoromic lens} to get protected from sun ’s bright light and digital screen lights)
    If there is anything left, then please inform me.

    Is that person 100 % safe from sun ’s bright light and digital screens lights?

  • Fish oil reacts with excess iron that everyone has from acid rain and iron fortification to form lipofuscin. HUFAs are poison and it will soon come out. The billion dollar fish oil industry will fall in the future.

  • The only thing blue light actually affects your sleeping cycle. You’re eyes become tired for staring at the screen without blinking. Causing your eyes to dry and feel irritated.

  • I have had some moderate success using abi 23w tuna blue lights. My tomatoes are strong and flowering. Im using happy frog potting mix and 3 gallon fabric grow bags.

  • Please don’t teach people false information. Your advise just causes people to spend money they do not need to. Blur light is a normal part of the spectrum. All light has blue in it. It does not in any way cause eye damage. As others have said, there is no research. Eyes hurt when staring at the screen a lot because we don’t blink as much and the eyes get dry. The only way blue light can affect our health is watching TV or other screens late at night. Blue light makes it more difficult to sleep. Some devices shift the light towards yellow after sunset to help.

  • Very recently, I had cataract surgery. I received a “patient lens implant identification card” for each eye.

    It indicates “UV with blue light filter” on the cards. Any thoughts on the level of protection from blue light that these implants provide?

  • Why use blue glasses when you can just use Night Shift or Flu.x to adjust the color temperature of the screen? Is there difference?

  • Hey, doc! What would you say about the doctors opinion of this video? Is it another manipulation of research, just like it was done with tobacco and sugar?

    https://youtu.be/NkJY9bgLyBE

  • Blue light does not damage your eye. It does effect your health in other ways, but all these people claiming it causes macular degeneration and whatever else are just scaring you into spending 50-100$ more per pair of glasses for some fake filter.

  • https://youtu.be/NkJY9bgLyBE

    Hey can you react to this video? I’m a optical manager and idk what to say to this. We get a lot of people looking for Plano blue light glasses.

  • I use blue light-blocking clip-ons all day at work. I work in IT, and using them have made a big difference in eye fatigue and headaches.

  • You are talking rubbish. Blue light glasses are snake oil. Yes, it may affect your sleep, but it is not harmful to the retina eye. It is simply a way to sell gadgets.

  • I bought two pair of blue light blocking glasses from Amazon and one is super dark for outdoors (which I love) and it absolutely blocks out the color blue from my vision. However, the lighter pair with yellow lenses that I wear indoors does not block the color blue from things on my computer screen. They are touted as a sleep lense. Why is that? For instance your blue comment button is clearly visible as blue and I can see it as blue. Can someone explain why this is? Am I supposed to see the color blue. Do they work on blocking the blue light even though I can still see blue?

  • Marketplace just did some investigation on these “blue light” glasses and its seems to be a controversy. Can you please have a look and comment.

    https://www.youtube.com/watch?v=NkJY9bgLyBE

  • Dear doctor, I have developed astigmatism right from heavy phone usage( I strongly believe). But I don’t have any spherical dioptres…..only cylindrical! How on Earth can I get astigmatism from blue light???

  • This was so helpful! I always wondered if I should get a red/purple/blue LED for my houseplants but know i know that getting a white one might be a viable option!

  • There’s a lot of info here.. so.. if I was growing Tomatoes, I would want the full spectrum LED’s right? I mean, based on what I’ve seen here, every color of the light produces a bit of a different growth factor in the plant. 1 gave it more bushiness, the other elongated it, etc.. So all of them together should produce the best plant overall right?

  • Not gonna lie. This guy is super wholesome. Everything was explained perfectly using the scientific method. Perfect for literally anyone!

  • how often did you change the nutrient solution? It occurs to me that the yellow color of the leaves after the red light is nitrogen depletion. It is possible that if you played more with nutrients, the result would be different. It is known that flowers under LED lighting suffer from a lack of Ca and Mg, when under sodium lamps they do not have such demands on Ca, Mg. Otherwise interesting thank you.

  • This video alone explains, with much clarity, just how much there is in only one facet (lighting) of growing plants. As a novice gardener I thank you for educating aspiring growers, it takes a special kind of of teacher to explain things clearly, and you certainly have that rare talent.

  • Hi, I hv a question for anyone who can answer: is the common LED exactly the same as LED used in growing plants? Thanks in advance.

  • If anyone knows the answer, since it was far above the PAR range couldn’t the light source just be dimmed to use less power instead of moved further away which is still using the same amount of power?

  • Awesome. Wanting to start experimenting with hydroponics and was always confused about the lighting. Your video just explains it clearly… so now I go ahead!! Thanks

  • Using an LED light instead of the CFL for the white light would’ve make this experiment much more accurate..
    nevertheless you did an amazing job!

  • In the experiments I’ve done, light saturation is around the point where the plant leaves under the light stop appearing black and begin to reflect the light. This comes from not being able to afford the cool toys like the ones you have!

  • Hi mate,
    I was just wondering what light meter id need for my led lights. Would it be a par or lux meter? Im using kingbo 2000w led’s
    Thanks.

  • I feel like subtle differences in light and color like those orange looking HPS lights or blue Metal Halides and their intensity would definitely impact the way the plant grows in different ways. It really opens your eyes to there maybe being that perfect most ideal lighting for the best possible results or even unimaginable results haha

  • I thought blue light would be a light for resting an red light would be for growth, I bought a blue an red LED for some carnivorous plant’s, Wondering what would be best light for venus fly trap’s, Pitcher an Sundue plan’t, I used too grow cannabis before the police charged me for cultivation of growing my own medicine coz the Dr won’t give me prescription for chronic PTSD, So had too take my stet up down, I miss growing cannabis too, That sense of achievement when you grown an amazing crop, From growing anything amazing, Every human deserves the right too grow their own herb’s And medicines, Plus if Hemp was grown on massive scale think of all the thing’s that can be made from Hemp, Even houses, Since biblical days an before that, Man have grown their own medicines, Cannabis is an amazing plant, Food as well as medicine, Even the oil is better, An what is more cannabis is not toxic, But yeah LED light’s are better than HPS, I have almost lost a crop from heat so just having the light spectrum with no heat will help your grow no end, Regardless what you grow, Heat stun’s your grow i know that much…..

  • I don’t know why people are making devices that have blue light some systems have a yellow light feature and I’m like why not make the thing only have yellow light

  • Nicely done. I’m in the process of creating an eye eduction website. Let me know if I could link to video.
    Dr. Stephanie Mulick, O.D.

  • Yes, but I bet you will have different results if the lights blink on and off and have different combinations like red/blue clear/blue.

  • ….and furthermore: I have absolutely zero knowledge on hydroponics, would all these results translate directly to soil growth or does anything change? I would expect that at least the photosynthetic aspect of plant growth should be independent from the soil or lack thereof, but… you’re the one that runs the experiments!

  • Wow. Loved your scientific approach to the whole question…

    I was wondering if you repeated the test but sticking to the °right amount of light° to avoid photoinhibition! Also, I haven’t done much research myself but I will soon, but just in case you have any shortcut: do you have preferred sources for finding PPFD for different plants? I’m having fun with some basil here:)

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  • hello! thank you for the great video, it was the great experiment and really helpfull:) i currently grow my plants in relatively low light apartment, iam trying helping them to grow (c3 plants) with purple 6w led bulbs. Do you think it would be beneficial to switch to standard commercial led bulbs imitating daylight producinng more lumens an imitating standard spectrum more closely? or at least worth a shot? thank you in advance

  • do you have a video where you use the light metering device you have and showing proper distance for the LED lights then re-testing and seeing if it worked better with the 4 types of light sources?

  • In order to concretely proof or disproof the hypothesis you would have to have more exemplars for each light (at least 10 for each, I suppose… you know, the more you have the more statistical power). The genetics each individual seed has brings many confounding variables into the equation. Your idea and your effort, though, were inspiring. This photomorphogenesis is very interesting

  • Hi, thanks for the video. i have a question, do you know what is the affect of the red and blue lights on the taste of vegetables?

  • When I heard blue blockers were available, I went to the optician and had a couple pair of plain lenses custom made, with AR, UV 400 protection and blue light blockers. Then I heard that computer glasses should have a small magnification. I asked my opthamologist he said Okay So, I requested two additional pair made like readers with 1.50x They told me that I need a Rx if I wanted readers made. So, I asked the optometrist and he gave me an Rx and I had two more pairs made with the same specifications for computer use. Then I heard you say the magnification should be slightly off to decrease eye fatigue. I’m too exhausted dealing with the bureaucracy. These will have to do for now! Thanks, for your informative and up to date, videos!

  • I like your experiment. Very well and clearly explained.
    Do you only do veggies? Do you have a grow light experiment on succulents?

  • Would be interesting to see if there was any effect on a plant grown
    with red on one side and blue on the other.
    Would the plant do the blue/red thing like in this video, or would it manipulate the light
    and use it as if there was a single light hitting it.

  • all day I was hesitant about watching now I’m glad I did. not exactly what I need I’m trying to decide the best light for my houseplant. Thanks

  • Can you please explain how strobe lights affect the eyes? My phone has started flashing any time in low light environments. It’s bright green, and when it happens it’s almost pitch black in the room. Kinda makes my eyes sore and I can’t see to get around for a while after, like everything has a gray film over it. When I close my eyes I see the green phone shape and my eyes burn. If I go to an eye doctor, how is damage detected and how do you know the extent?

  • Eye Health Question of the Day: Do you wear Blue Blight Blocking Glasses? After hearing the science presented, do you think blue light damages the retina?

  • I have been aware of blue light for a while now and have the blue light filter on constantly but I keep on questioning if red or green light can potentially damage the eye as well

  • found this really good website for anti blue light glasses really affordable they also have sunglasses designer good quality stuff check it out https://eyespaceopticals.com/

  • Blue light info was awesome. I am over 60 years old and my eyes ache some days when I get on my devices, especially with bright light outside of the screens.

  • I have a blue light filter on my S8+ so don’t need this glasses and this filter really does work once I turn it on at night I start to get really sleepy and my eyes are not worn out as much I feel a lot better.