Eye care
Blue-light glasses: do they work?
An honest look at blue-light glasses, screen comfort and when they are worth buying.
What they do
Blue-light lenses filter part of the blue light from screens. Many people find them more comfortable for long hours at a computer.
What the evidence says
Research does not show that blue light from screens damages your eyes. Eye strain usually comes from staring at a screen for long periods and blinking less.
Habits that help
- Look 20 feet away for 20 seconds every 20 minutes.
- Keep your screen at arm's length and slightly below eye level.
- Get your eyes tested regularly.