I like to use an iPad to read books. Will it hurt my eyes?

I'm used to browsing the internet, staring at the screen for hours
I like to sit cross-legged and put the tablet on my thigh. Will this distance cause short-sightedness?
Also, is it harmful to the eyes to look at the screen without turning on the lights at night?
The main problem is that I'm afraid I'll be nearsighted

Answer 1

Using a tablet or smartphone to read a book or other screen content can cause a certain degree of fatigue and damage to the eyes because the brightness, contrast, and color of these screens are very high. It takes a long time to stare at them to see clearly.

Staring at an electronic screen for a long time, especially in a dark environment, would cause eye muscle fatigue, dryness, vision loss, and other problems. Therefore, it is recommended to rest your eyes every once in a while to avoid staring at the screen for a long time. At the same time, maintaining good eye habits such as maintaining the correct sitting posture, resting regularly, using appropriate lighting, etc. can help reduce the risk of eye fatigue and injury.