Quick answer: Usually temporary focusing fatigue. After a long screen session, the muscles that focus your eyes get tired, so vision can blur for a bit, especially when you shift from the close screen to something far away. It typically clears with rest.
How to clear it
- Use the 20-20-20 rule to relax your focus
- Blink and use drops if your eyes are dry (dryness blurs too)
- Match screen brightness to the room and cut glare
- Take real breaks and rest your eyes
When to see a doctor
If blur is persistent, worsening, sudden, affects one eye, or comes with other symptoms, see an eye doctor, that's not ordinary screen fatigue and may need an exam or updated prescription.
The bottom line: Blurry vision right after a screen is usually tired focusing muscles, and it clears with rest, breaks, and blinking. Persistent or sudden blur is worth an eye exam.
