After contacting T’aime to obtain spectral transmission data for the post on best blue blockers they offered to send me their Dinodon computer glasses for review. According to T’aime, the lenses on Dinodon’s filter 97% of blue light. Below you will find my thoughts after wearing the glasses for 4 weeks and the follow-up after another 8 weeks later. The focus of this review is on the lens effectiveness in blocking blue light and glare from computer (digital) screens and their ability to reduce computer eye strain and/or insomnia. Continue reading →
This post might help you if have central serous retinopathy (CSR), sometimes also referred to as central serous choroidopathy (CSC). Because of CSR Sam (the name has been changed) had severe problems with light sensitivity to computer screens and fluorescent lights (but not other sources of light). He found relief in filtering blue light.
If you also suffer from central serous retinopathy and have issues with glare do drop a comment below, for the benefit of others who are also struggling with CSR related light sensitivity. Let us know what has and what hasn’t worked for you!
Disclaimer: My interest in blue blockers comes from my problems with light sensitivity (photophobia), discomfort glare, and computer eye strain.
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Here is what Sam’s message: Continue reading →
Guest post by Margaret Copeley, MEd
Many people must spend virtually their entire work day at a computer. In addition, many of us spend several more hours using a computer for personal activities: email, shopping, researching topics of interest, and so on. As a freelance writer and editor I found that Computer Vision Syndrome crept up on me over a period of a couple of years after about ten years of very intensive computer use. My eyes were very dry and burning; my vision was blurry; I had constant headaches; I became very sensitive to light both indoors and outdoors. My discomfort and poor vision became so severe that I really wondered if I could continue in my work. That was a sobering thought, and it motivated me to learn as much as I could about my eyesight and how it is affected by a computer.
In this article I will describe some strategies that can make a significant difference in eye comfort for writers, editors, and others who work mostly on a computer with an emphasis on customizing Microsoft Word for maximum clarity and comfort. Continue reading →
Saying that “blue light blockers don’t distort color” is manipulation used to convince uninformed people to buy products that filter blue light, but not much and not any more than it filters the rest of visible light spectrum. But to prevent or mitigate eye strain, glare, insomnia, etc. a filter should block either most blue light or considerably more blue light than it blocks other, longer wavelengths of visible light. Such a blue light filter necessarily distorts color!
With the help of a few spectrograms you’ll see below why it is possible to say deceivingly – but without lying – that blue blockers don’t distort color.
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Office lighting and screen glare frequently cause computer eye strain headache, computer use in offices with LED and fluorescent lighting in particular. The light sensitive and those with fluorescent light sensitivity are particularly vulnerable as their problems appear to have the same cause: disproportionately high blue light content emitted by LED and fluorescent lights. This post draws from vision and work ergonomics science to suggest ways to reduce LED and fluorescent light headaches with five different types of blue filtering glare screens.
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