This overview of blue light blocking glasses was motivated by complaints about the poor style among the good blue blockers. Truly, it is impossible to find brands of blue blocking glasses with a deep selection of frames, various blue blocking tints, disclosed spectral transmittance data, Anti-Reflective (AR) coating, and all of that available in prescription (Rx) for those who need it. But some vendors get very close! Hopefully this review broadens your options and helps you find the perfect blue blockers for your taste and blue light filtering needs. 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.
Windows 10 has made life of those with light sensitivity and computer eye strain issues more difficult. In terms of text and background color adaptability to specific visual needs it is a step back when compared to Windows 7. But you can still have it your way. Below you may find detailed instructions on how to fully personalize your Windows 10 screen’s appearance to your, eye-friendly colors (anything, to any color). The instructions should also work in Windows 8. Continue reading →
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.
Blue light filter selection is complicated. A blue filter may help you with many problems: computer eye strain (computer vision syndrome), LED & fluorescent light sensitivity, sleep disorder, age-related macular degeneration (AMD), light sensitivity (discomfort glare), visual acuity… But not every blue filter will produce optimal results given the specifics of your blue light sensitivity problem. The chaos of hype marketing terminology often hides more than it reveals which further complicates the selection process. Read on to find out: which wavelengths your blue filter should absorb/block, by how much, how to compare bluelight filters… Continue reading →
Eyes sensitive to light!? Evidently I am talking about light sensitive eyes as in photophobia, light aversion, discomfort glare, pain, eye fatigue and computer eye strain induced by light and glare. Increasingly scientific evidence shows that eye sensitivity to light tends to be caused only by a small portion of visible light that carries most of its energy – blue light, i.e. High Energy Visible (HEV) light. This article:
- highlights key scientific reports indicating that eye sensitivity to light tends to be caused by blue light
- suggests a way to test if and to what extent your eye sensitivity to light is blue light induced
- proposes solutions to help you improve your light sensitivity pain threshold and/or cope with your blue light sensitive eyes
Our visual system seems to respond very differently to colors. In particular different collors seem less eye straining to different people. There is quick and easy way to give you an idea of which color might work best for you. Continue reading →