Quick answer: It's dry eyes. That sandy, gritty, something-in-my-eye feeling after screens is a classic dry-eye symptom, you blink far less while focused, so your tear film thins and the surface feels rough. Blue light isn't the cause.
How to relieve gritty eyes
- Blink fully and often; use the 20-20-20 rule
- Use preservative-free lubricating drops
- Add humidity; keep airflow off your face
- Lower a too-bright screen and take breaks
When to see a doctor
If grittiness is constant, painful, or comes with redness or vision changes, see an eye doctor, you may have dry eye disease that benefits from treatment.
The bottom line: Gritty eyes after screens mean dryness, not blue light. Blink more, use drops, add humidity, and take breaks to relieve it, and see a doctor if it's constant or painful.
