For the prevention and treatment of polydactyly, parents found that children transient abnormalities, to take the child to the ophthalmology examination, to find out the cause of the disease for targeted treatment. (1) improve the adverse environment: such as environmental pollution, to eliminate pollution; allergies, to eliminate allergens, anti-allergy treatment; (2) treatment of eye diseases: refractive error, give correction; eyelid inversion, inverted eyelashes, granuloma, chalazion, blepharospasm and so on due to the active treatment. (3) pay attention to psychological treatment: many children can not find out the exact cause, for these children, parents should not be too anxious, often considered by parents as “bad” and scolding, which aggravates the child’s psychological burden. This will increase the psychological burden of the child, thus aggravating the condition. Therefore, we need to pay attention to psychological treatment. First of all, we should actively eliminate the adverse psychological factors of the child, encourage and guide them to engage in normal learning, recreational activities, distraction, diversion of their attention. Don’t let the children play games (including computer and cell phone games), watch TV to control the time. In the visual development of incomplete juvenile stage, parents should patiently help their children to avoid prolonged television, daily television time 2 ~ 3 years old should be no more than half an hour, 4 ~ 6 years old no more than 1 hour, 7 ~ 10 years old no more than 1 and a half hours; and the brightness of the TV screen should be moderate, the seat and the height of the TV set to maintain consistency, the distance should be six or seven times the diagonal of the screen, and at the same time, the room should be properly illuminated, and look after the rear Wash your face to protect your eyes. (4) Pay attention to diet and nutrition: for children who are weak and allergic. Strengthen the protein and vitamin supplement. Usually should also keep the child’s diet nutritional balance, eat more fresh vegetables and fruits, in order to strengthen the body, etc., which is also an important measure to prevent children’s polytransient disease.