Darker days of winter can make reading or computer use hard on the eyes. A few tips for reducing eyestrain and fatigue:
1. Work and read in well-lit rooms.
2. Position your computer monitor at,or just below , eye level, and place it a little farther away than when reading a book.
3. Use anti-reflective coatings on computer screens and glasses.
4. Practice the 20-20-20 rule: Take a break every 20 minutes by looking 20 feet away for 20 seconds.
Leading causes of vision loss.
Farsightedness or astigmatism
Source Healthy Living Made Simple