Blue Light

Evening screen exposure suppresses melatonin and delays circadian phase — directly impairing sleep quality and cognitive performance the next day. Here's the mechanism, what the evidence says about blue light glasses and f.lux, and a practical protocol for developers.

Evidence-based guide to Computer Vision Syndrome for developers. Covers blink rate research, blue-light glasses evidence, the 20-20-20 rule, monitor setup, dry eye treatment, and lutein/zeaxanthin nutrition.