Study: Blue light impairs the eye's ability to distinguish fine detail most

> Many factors, like light scattering and imperfections in the eye’s optics, keep light from coming into sharp focus on the retina, Buabeng said.

> The study also found that iris pigmentation influenced how far apart the two light points needed to be before viewers could distinguish them as separate points. Using a standardized iris color chart, researchers classified each participant’s eye color before analyzing the results. Participants with lighter-colored irises, particularly blue eyes, experienced greater light scatter than those with darker brown irises.

Sounds like the research took a next step beyond previous studies on the same subject. You know, basically how science is supposed to work. Something anyone giving a flippant reply here could have figured out if they actually had read the article.

On a related note, anyone wearing prescription glasses will be affected by chromatic aberration to some degree, which may notably cause the blue portion of the image to be shifted relative to the rest of the image, which makes text and other detail harder to see and can be annoying. This effect is accentuated when looking at a strongly trichromatic source like a computer or screen because the spectrum is discontinuous and the blue content has more power at shorter wavelengths than most natural sources.

You can mitigate this by using lenses made from a material with a higher Abbe value. Polycarbonate is the worst, CR-58 is the best, and Trivex is quite good. Trivex is also impact resistant, so it’s an excellent alternative to polycarbonate. The high-index plastics are quite bad, so if you don’t need them, consider asking for mid-index or Trivex instead.

I've had some light-sensitivity issues for as long as a remember. So I always get glasses with transitions. On computer though I've always been using flux [0] since it came out. I know that now a lot of OSes are supporting some kind of night mode, but I really like how there are some different parameters you can adjust in flux. And it's free.

[0] https://justgetflux.com/

I'm trying to get my hands on some decently high wattage (100W ideally) incandescent bulbs because it's really been bugging me lately that while I can still focus just fine, I have trouble making out details and some colours in artificial lighting. I've come to the conclusion that there's really no substitute for light generated from heat.

Isn't this well known? The human retina has fewer blue-sensitive cone cells, and very few in the fovea, which sees the sharpest details: https://en.wikipedia.org/wiki/Cone_cell#Distribution

Blue light also probably has more dispersion (aka chromatic aberration) .. I wonder how the eye deals with chromatic aberration, if we just filter it out by processing or if the system doesn't really suffer from it? Edit: or perhaps that's the reason why we don't have high resolution in blue.

How was this study not done back in the 1950s?

I've been noticing the affect of gold light during gold hour, specifically during sunset. I find I have more creative ideas for problems I've been chewing on come up, and also feel an indescribable calm. I've been trying to notice the affects of all the specific color phases of the sun and feel they each play a special role in our physiology.

I also wear glasses and I feel calmer and more "affected" during these periods when I take them off.

Looks like we French had the right idea with yellow headlights? https://en.wikipedia.org/wiki/Selective_yellow

so did John Rambo use the wrong light?

Interesting, i've read in the past that blue lights are used sometimes in places where they want to dissuade people from intravenous drug use because the blue light makes it harder to find a vein. I wonder if that qualifies as fine detail.

Ils this new research ? Why is it for me common knowledge ? Everyone knows blue light looks blurry because blue retina receptors have lower definition