The department for cataract consultations is ophthalmology. Various factors such as aging, genetics, local nutritional disorders, immune and metabolic abnormalities, trauma, poisoning, radiation, etc., can cause metabolic disturbances in the lens, leading to the denaturation of lens proteins and resulting in opacity, known as cataracts. At this time, light is obstructed by the cloudy lens and cannot be projected onto the retina, causing blurred vision. This condition is commonly seen in individuals over forty years old, and the incidence increases with age. The disease can also be divided into congenital cataracts and acquired cataracts.