The prevention of myopia by atropine is currently a hot topic of research in the ophthalmology community. Atropine can prevent myopia from deepening, but it does not play a role in treating myopia. According to research, various concentrations of atropine can prevent myopia deepening, and the higher the concentration, the more efficient it is to prevent myopia aggravation, but the greater the side effects. Because atropine is a ciliary muscle paralyzing agent, high concentrations of atropine can paralyze the ciliary muscle, and too long a duration can produce side effects such as photophobia and even dryness of the mouth. At present, the main research is low concentration of atropine, 0.01% atropine eye drops, 3 times / day, adhere to the point eye can make the probability of myopia deepening become smaller, the speed of degree growth slower, it is recommended that children under 12 years old can use 0.01% atropine eye drops.