HEV Blue Light from Phones is NOT Harmful

Saying HEV Blue Light from Phones, Laptops, and Other Electronic Devices is not Harmful is a very Controversial Point-of-View within the Optical Industry.  

So, It’s important that I go on the record today to provide you scientific as well as clinical studies that you can use to help you make a distinction about what is unethical marketing and what is sound unbiased advice from people that care about your wellbeing. 


I challenge you to call or visit several opticals and ask them about HEV Blue Light Filters from Electronic Devices…..


Depending on which optical you call or visit, they’ll give you these reasons as to why you need it:


-Blue Light Emitted from Electronic Devices cause Digital Eye Strain

-Blue Light Emitted from Electronic Devices is Harmful, 

-Blue Light Emitted from Electronic Devices is Linked to Retinal Cell Damage.

-Blue Light Emitted from Electronic Devices Accelerates Cataracts

-Blue Light Emitted from Electronic Devices Accelerates Age-Related Macular Degeneration


Notice, there is a quick escalation of fear tactic that triggers the emotion to want to buy anything that will prevent harm to our eyes.  When a claim is made that will elicit an emotional reaction the marketer has the responsibility to provide proof… REAL PROOF in the form of Clinical and Scientific Studies, not just using their title to influence one’s purchasing decisions.  


Time to Dig into the Validity of these Reasons:


Blue Light Emitted from Electronic Devices cause Digital Eye Strain:

Digital Eye Strain, it’s real….   90 percent of Americans look at digital device screens for two or more hours per day and a large percent report experiencing Digital Eye Strain Symptoms.  


But……  Most of the Blue Blocking Treatments sold only block 30% of the amount of HEV Blue Light, so unless you know what you’re getting and it’s been tested to block 100% of the HEV Blue Light it isn’t worth spending extra money to buy the Blue Filter, the Vision Council recommends you use the 20/20/20 rule (every 20 minutes look away from the device screen at something 20 feet away, for 20 seconds).


Blue Light Emitted from Electronic Devices is Harmful:

Sounds like a scare tactic so John O’Hagan tested this claim and published his findings in U.K.’s Eye journal in January, 2016 concluding: “Even under extreme long-term viewing conditions, none of the low energy light bulbs, computers, tablets and mobile phones we assessed suggested cause for concern for public health.”    

Link to the study:  https://www.nature.com/articles/eye2015261


John O’Hagan heads the Laser and Optical Radiation Dosimetry Group at Public Health England. This research group covers all aspects of optical radiation dosimetry, including both the beneficial and detrimental effects of optical radiation on people. The group also operates a UV monitoring network across the UK, Eire, Gibraltar and Cyprus.

These 3 People tried to discredit this study. 

Pete Hanlin, director of technical marketing for Essilor,

David Sinnott, vice president, global product management, Carl Zeiss Vision Care business group, and

Adam Berger, MD, who represents BluTech, said, “The article is factual, but it does not address the long-term chronic cumulative insult that leads to Age-Related Macular Degeneration.”

(http://bt.e-ditionsbyfry.com/publication/?i=323037&p=8&pp=1&view=issueViewer#{%22page%22:8,%22issue_id%22:323037,%22numpages%22:%221%22})


My concern is the conflict of interest between the companies dictating how their products are marketed to consumers by heavily influencing the opticals and how the blue blocking treatments are being sold through scare tactics.  


Anne-Marie Lahr, OD of Hoya Vision Care, agreed with the study’s conclusion that High Energy Visible blue light is not hazardous under these conditions


I looked for clinical studies on the effects of HEV Blue Light on the Retina and found 1 by NCBI (which is the most respected clinical study organization.)

Link to Study: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734149/

Conclusion of The Study:

LEDs in the range 470–480 nm for a short to medium period should not significantly increase the risk of development of ocular pathologies.


There is a quote by John Maynard Keynes, “When the facts change, I change my mind”.

This is exactly what I’ve done.  I’ve changed my mind about how I feel about HEV Blue Light Filters and their ability to help you.  When you call or walk in to Eyewear Republic, I will mention these Scientific and Clinical studies, and if you still want the Blue Light Filter on your lenses, then I will gladly put it onto your eyeglasses.  I will empower you with the most up-to-date information so you may make an informed decision, not a fear-based emotional decision. 


If you’ve found this video helpful, hit the LIKE Button and share it with someone else who may benefit from my information.  Thank you for watching my video. I suggest you Subscribe to my channel because I upload regularly and I try to provide you Educational and Entertainment Value in my productions.

Have a great day!


TRANSCRIPTION of VIDEO:

I challenge you to either call, or better yet visit opticals within your area and ask them about H.E.V. Blue Light emitted from phones, laptops, and all of other devices. What are they going to say? Depending on which optical that you either call or visit you're going to get the following reasons as to why you need that H.E.V. Blue Blocking Filter: Reason #1: The Blue Light Emitted from electronic devices can cause Digital Eye Strain. #2 Blue Light Emitted from electronic devices is harmful. Reason #3 Blue Light Emitted from electronic devices can cause retinal damage. Blue Light from Electronic Devices can accelerate cataracts. And you might even hear that blue light emitted from electronic devices can accelerate age related macular degeneration. Notice that there is a quick escalation of fear tactics that triggers the emotional response to want to buy anything, absolutely anything that will prevent harm to eyes. Sounds like a scare tactic. The thing is, that when a claim is made that will elicit an emotional reaction the marketer has the responsibility to provide proof, real proof in the form of clinical and scientific studies, not just using their title to influence one's purchasing decisions. Professor John O'Hagan tested this claim and published his findings in UK's Eye Journal back in January 2016 concluding that even under extreme long-term viewing conditions none of the low energy light bulbs emitted from computers, tablets, mobile phones that we assessed suggested cause for concern for public health. None Suggested Cause of Concern. None. Link to the study is below. Now, lets look and hear from John O'Hagan himself. Professor John O'Hagan knows all about Blue Light. Blue Light in our normal environment is not dangerous at all. Main source of Blue Light for most people will from the sky. The blue light level coming from the phone is so low that we need to turn down the lights in the room and bring the blinds down otherwise we're not going to measure very much. Levels are very low. It's a very low output. There is no evidence that the blue light from your mobile device is harmful. Three years ago Public Health England asked him to do similar testing. As part of our study, we looked at a whole range of different phones, tablets, screens and didn't find anything gave us cause for concern. O'Hagan's tests determines screens are harmless. So, who is John O'Hagan and why should we even listen to him? Well, John O'Hagan, he heads the Laser and Optical Radiation Dosimetry Group at Public Health England. This research group covers all aspects of optical radiation dosimetry including both the beneficial and detrimental effects of optical radiation on people. The group also operates a UV monitoring network across the UK, Erie, Gibraltar, and Cyprus. And there were three people that tried to discredit the study. Pete Handlin Director of Technical Marketing for Essilor, David Synott Vice President Global Production Manager Carl Zeiss Visioncare Business Group and Adam Berger, MD, who represents Blue Tech and he said, "the article is factual but it does not address the long term chronic cummulative insult that leads to age related macular degeneration. Link to the quote below. My concern is the conflict of interest between the companies dictating how their products are marketed to consumers while heavily influencing the opticals and how the blue blocking treatments are being sold through scare tactics. But at least, Anne Marie Larse, O.D. of Hoya Vision Care agreed with the study's conclusion that High Energy Visible Blue Light is not hazardous under these conditions. I looked and looked and looked for clinical studies on the effects of HEV Blue Light on the Retina and found one by NCBI (which, by the way is the most respected clinical study organization). The conclusion of the study: LED's in the range of 470 to 480 nanometers (in wavelength) for a short to medium period should not significantly increase the risk of development of ocular pathology. Link to the study below. There's a quote by John Maynard Keynes (I don't agree with his economic belief, but I do agree with his quote) He says and I quote, "When the facts change, I change my mind". That is exactly what I've done. I've changed my mind about how I feel about HEV Blue Light Filters and their ability to help you. When you call or walk into Eyewear Republic I will mention these scientific and clinical studies and if you still want the blue light filter on your lenses then I will gladly put it on your eyeglasses. I'm going to empower you with the most up-to-date information so you may make an informed decision and not a fear based emotional decision. Another reason that they might even recommend it of which I forgot to mention earlier is that it alters your cyrcadian rhythm it alters melatonin levels and therefore it alters your sleeping cycle. Now, that could be true, but here is a quick fix, go to your cell phone go to the settings Night Light. Boom, apply that feature from your cell phone and you won't have any problems sleeping at night. It's important that I go on the record today to provide you with scientific as well as clinical studies that you can use to help you make a distinction about what is unethical marketing and what is sound unbiased advice from people that really are looking after your well being. If you found this video helpful then hit the LIKE button and share it with someone that you feel might benefit from it. Thank you for watching my video and I suggest that you subscribe to my channel because I upload regularly and try to provide you educational and entertainment value in my productions. Have a great day!