2. Reflection should be avoided: there should be a lighting device beside the desk to reduce the reflection effect and reduce the damage to the eyes.
3, reading time should not be too long: whether doing homework or watching TV for too long, it is best to take a break every 30 minutes.
4, sitting posture should be correct: don't hunch over.
5, reading distance during the exam: the distance between the book and the eyes should be 30 cm, and the height of the tables and chairs should be consistent with the physique, not forced.
6. Don't watch TV too close: When watching TV, you must keep a distance of 6 18 times from the diagonal of the TV screen and have a rest for 30 minutes.
7, sleep must be too little, regular work and rest: primary school students are not less than 10 hours, middle school students are not less than 9 hours, lack of sleep is easy to fatigue, easy to cause pseudomyopia.