Digital eye strain—also called computer vision syndrome—describes a group of eye and vision-related problems associated with prolonged screen use. Common complaints include tired or dry-feeling eyes, blurred vision, headaches, and neck or shoulder discomfort. Try this checklist one change at a time.
1. Make text comfortably readable
If you lean toward the display or squint at body text, increase the effective size. In System Settings → Displays, choose a larger-text option that lets you sit naturally. This is often more useful than simply raising brightness.
2. Match brightness to the room
A bright display in a dim room can feel harsh; a dim display in a sunlit room can be hard to read. Adjust brightness when the environment changes. Avoid placing a bright window directly behind the display or directly behind you, where reflections can compete with the screen.
3. Use Night Shift for evening comfort
Apple says Night Shift moves display colours toward the warmer end of the spectrum after dark and can be scheduled from sunset to sunrise. Find it under System Settings → Displays → Night Shift. It is mainly an evening and sleep-timing feature—not a substitute for breaks.
4. Check distance and height
Move the screen far enough away that you can read without leaning forward. Keep the top portion around eye level or slightly below so your gaze falls gently downward. With an external display, increase text size before pulling the monitor closer.
5. Blink completely
Concentrated screen work can make blinking less frequent or less complete. Use each break as a cue for several relaxed, full blinks. If dryness persists, an optometrist or ophthalmologist can help identify other causes.
6. Break up prolonged near focus
Use the 20-20-20 rule: about every 20 minutes, look around 20 feet away for 20 seconds. Also stand up or move during longer natural pauses. The small breaks address visual focus; the longer ones help your whole work posture.
A five-minute Mac comfort reset
- Increase text until you stop leaning forward.
- Reduce glare and match screen brightness to the room.
- Place the display at a comfortable distance, slightly below a straight-ahead gaze.
- Schedule Night Shift for evening use.
- Start a gentle eye-break reminder.
When to seek help
Do not assume every symptom is “just screens.” Seek professional advice for persistent discomfort, recurrent headaches, double vision, marked redness, or any new or worsening change in vision.
Sources
- American Optometric Association: Computer vision syndrome
- Apple Support: Set display colour temperature on Mac
- Apple Support: Use Night Shift on Mac
This article provides general information and is not medical advice.