
I checked for information this morning; just to reassure myself that I wouldn't go blind. Back in the 60s, people said poor workers in India and China went blind, stitching the clothing available in Australia. I breathed a great sigh of relief when I found numerous reassuring articles.
Click here for: Computer eye strain explained.

The condition likely doesn’t cause permanent eye damage, but it can still affect computer users’ comfort. The most common symptoms of CVS include eye strain, redness, irritation or dryness, a burning feeling in the eyes, blurred or double vision after computer use, headaches and neck and shoulder pain.
You can find plenty of advice about how to adjust your viewing to alleviate symptoms such as lighting, taking breaks, doing regular eye exercises, taking a break etc. Most of it is common sense, and I use that personal attribute all the time. How about you?