Screens All Day? A Doctor’s Routine for Tired Eyes
Digital Eye Strain · January 27, 2026 · By Dr. Rachel Morgan
Why screens tire your eyes
We blink about 15 times a minute in conversation — and roughly 5 times staring at a screen. Fewer blinks mean a broken tear film, which means burning, blurring that clears when you blink, and that gritty 4 p.m. feeling. Add a slightly wrong prescription and poor lighting, and you have digital eye strain.
The routine I give my patients
- 20-20-20, with a timer: every 20 minutes, look 20 feet away for 20 seconds. Phone reminders make it stick.
- Screen below eye level: looking slightly down lets lids cover more of the eye, slowing tear evaporation.
- Task lighting: match room brightness to your screen; never work in the dark with a bright monitor.
- Preservative-free drops: use them before symptoms start on heavy screen days, not after.
- Computer lenses: a dedicated desk prescription with blue-light filtering beats “making do” with progressives.
When to come in
If strain persists after two weeks of this routine, your prescription, binocular vision, or tear film needs professional attention. A 45-minute exam finds the real cause — and usually a simple fix.