1, the light should be adequate and comfortable, not in strong or too dark light to read and write, the desk should have a side light device, its purpose in reducing the reflection to reduce the damage to the eyes. 2, the correct reading and writing posture, between the eye and the book to maintain a distance of more than 30 cm. The height of the table and chairs should also be adapted to the body, not reluctantly, read and write when the body from the table a fist. The correct posture of holding a pen. Do not lie down to read, do not read when walking by car. 3, reading and writing time should not be too long. Whether doing homework or watching TV, the time should not be too long, every 50 minutes or so to relax and rest for about 10 minutes, it is best to go outdoors to move your arms and legs and torso, take a walk, look into the distance, active rest, or do eye exercises and head activities indoors (many people complain of cervical pain, head activities will help). 4.Don’t watch TV programs, operate computers and play video games for a long time. 5, sleep is indispensable, regular work and rest, sleep deprivation body easily fatigue, easy to cause pseudomyopia. 6, do more outdoor sports, often look into the distance to relax the eye muscle, and more contact with nature, green mountains and wilderness is beneficial to eye health. 7, nutritional intake should be balanced, not partial food, should eat more germ vegetables, cereals, yeast, carrots, cabbage, bean sprouts, tofu, red dates, oranges and milk, eggs, fish and shrimp, animal liver, lean meat and other foods to supplement the body vitamin A and protein. 8, regular vision check, early treatment; reasonable optometry; reasonable use of drugs.