If you get itchy, dry eyes, blurry vision or headaches after spending time on your computer or tablet, you may have heard that wearing blue-light blocking glasses can ease the strain. But do they really work?
Probably not much, according to science. It’s more likely you have digital eye strain caused by glare, small type and not blinking enough.
However, these glasses may prevent blue light from disrupting your production of melatonin—the hormone that makes you sleepy. A few small studies have found that participants who used electronics at night slept better after wearing blue-light blockers near bedtime.
Still, most people don’t need to spring for these trendy specs. Instead, ease eyestrain with these methods:
- On your screens, enlarge fonts and adjust the brightness.
- Try preservative-free artificial tears for dryness. Talk to your doctor if occasional use isn’t helping.
- Remember the 20-20-20 rule. Look up from the screen every 20 minutes and focus on something 20 feet away for 20 seconds.