1. aggravate the symptoms of eye fatigue. When lying down and watching the mobile phone, the light on the screen is relatively strong, pointing directly at the eyes. Looking at it for a long time, it will cause eye fatigue, leading to eye pain, soreness, dryness or mild vision loss;

2. It is easy to cause myopia, especially for children or teenagers, because the reading distance of mobile phones is relatively short. If the mobile phone is used excessively, the refractive state of the eyes will change, which will cause myopia.

These are two common dangers. In order to avoid these situations, it is suggested to maintain reasonable and correct eye habits as far as possible, not to play with mobile phones lying down, and to control the time of using mobile phone electronic products as much as possible.