Originally Posted by HarryT
It's certainly the case that your eyes can be damaged by straining them in poor light. In the days before electric light, lace workers famously used to go blind at a very early age, due to having to do detailed work in poor light.
Well, I do not know. If you look at for example
Myths about Vision and Eyeglasses
● "Although eyeglasses makes you see better, they cause vision to get worse over time.
Eyeglasses will need to be constantly changed with higher powered one."
● "Don't wear your glasses so often, you need to exercise your eyes!"
● "Overuse of the Eye' or 'use of eye' makes vision worse"
● "Sitting Too Close to the TV Is Bad for Your Eyes"
● "Reading in the Dark Will Damage Your Eyes"
● "Eye exercises can improve vision"
● "Over the counter reading glasses hurt the eye"
● "Wearing contact lenses will prevent nearsightedness from getting worse"
● "Eating carrots can improve vision"
● "Using night light in infant rooms will make then nearsighted"
Although reading in dim light is unwise because it may cause your eyes to feel tired or uncomfortable, it can't hurt your eyes. There really is very little you can do that will permanently damage your eyes. Similarly, reading small print or reading extensively cannot cause damage to the eyes. This is true even for people who already have poor vision. Although using computers will not damage your eyes, fatigue, eye strain or dry eye may occur with prolonged use. The eyes are meant to be used!