A thirty-five year old patient with congenital cataracts can be closely monitored first if the cataracts are mild; if the cataracts are severe, they can be treated surgically. Congenital cataracts, which are usually present at birth, cause clouding in the lens, which prevents the refraction of light. However, the effect on vision is related to the severity of the cataract, and there is also the possibility that congenital cataracts may worsen progressively with age. For 35 year olds with congenital cataracts, if the degree of clouding is mild and the effect on vision is small, they can be left untreated for the time being and the condition can be closely monitored. If there is a significant loss of vision due to the recent development of the disease, surgical treatment can be considered to replace the cloudy lens with a clear IOL in order to restore vision. Once the patient has discomfort symptoms, it is important to go to the ophthalmology department of the hospital in a timely manner, the doctor will identify the cause, and then the doctor will guide to take targeted treatment.