Extraocular muscle weakness is a disorder of extraocular muscle movement due to various factors, muscle weakness, commonly seen in sarcoidosis, pediatric myasthenia gravis, progressive myotonic dystrophy, etc. There is a certain deficiency of qi and blood and lack of vitamins causing the problem. There may also be a relationship with loss of tendon support, lack of sleep, and congenital defects. The prevention of extraocular muscle weakness: 1, work and rest combination extraocular muscle weakness patients should pay attention to avoid excessive exertion, long-term overexertion will easily lead to the occurrence of the disease. Therefore, in life, patients should learn to combine work and rest, pay attention to relax the body to prevent aggravation of the disease. 2, the normal living extraocular muscle weakness patients should pay attention to personal life, reasonable arrangements for rest and rest time, so that early to bed, early to rise, is beneficial to the body, which has so that the treatment to get a better effect. 3, maintain a good mood patients to have a relaxed mood, mental mood and human physiological changes have a close relationship, happy spirit, the qi flow, not easy to be harassed by the disease, the body can also get a better recovery. The onset of extraocular muscle weakness is often related to the patient’s long-term mental tension or overwork, so it is important to maintain a happy and cheerful mood during treatment, so that the body can recover as soon as possible. 4, reasonable diet Diet also plays a role in the prevention of extraocular muscle weakness, a reasonable diet can better supplement the body’s nutrients, increasing the body’s resistance to disease and immunity. On the contrary, irregular diet will damage the body’s functions, physical decline, so, extraocular muscle weakness patients in the diet to do a reasonable diet, pay attention to the meat and vegetables with, do not picky food.