1, exercise, enhance physical fitness: strengthen physical exercise, reduce the environment near the eyes, look more distant, increase the time of outdoor activities. 2, pay attention to eye health: reading and writing posture should be correct: eyes from the book a foot, chest from the table a fist, fingers from the pen tip an inch; four do not: do not read and write in low light and direct sunlight; do not read in bed and walking or in the turbulent carriage; do not look at the font too small and too dense, handwriting unclear reading materials; do not use a light pencil and crooked head reading and writing; continuous reading, writing, reading and writing. Watch TV, computer operation for about 30 minutes to 1 hour to take a break or look into the distance for a while; insist on serious eye exercises; home lighting design: hanging height of lamps: fluorescent lamps 8 watts 50 ~ 55 cm, 15 watts 60 ~ 65 cm, artificial lighting light should come from the upper left (preferably higher than the head). Natural lighting: the best use of windows facing north. 3. Combination of work and rest, sufficient sleep: sufficient sleep may have a certain alleviating effect on the ciliary muscle spasm caused by excessive convergence. General sleep should reach more than 9 hours, at least not less than 8 hours. 4.Check your vision regularly, and correct your vision in time. 5.Rational dietary structure and balanced nutrition: strengthen dietary nutrition and eat more foods rich in vitamin A, calcium and zinc.