Usually patients with color weakness do not need to take medication, but if it is caused by optic nerve atrophy or diabetes, they need to take B vitamins, glibenclamide and other medications as prescribed by the doctor. The main causes of color weakness include congenital factors, aging of the eyes, and exposure to certain chemicals. For those who suffer from color deficiency due to the above causes, usually no medication is needed and patients can wear color deficiency corrective lenses to improve their quality of life. If the color weakness is caused by optic nerve atrophy, patients need to take B vitamins, methylcobalamin and other nutritive drugs to improve visual function, and some patients can also take glucocorticoids to slow down their condition. Usually, after the disease is controlled or cured, the color weakness can be improved. If the retinopathy and color weakness are caused by diabetes mellitus, patients usually need to take sulfonylureas such as glibenclamide and glipizide, gliclazide such as repaglinide and nateglinide, and DPP-IV inhibitors such as saxagliptin and selegiline, as well as other treatment modalities such as laser and surgery as prescribed by the doctor. It is recommended that patients with color weakness should undergo further detailed examination to determine whether to use medication after clarifying the cause of the disease. Patients should use medication under the guidance of a doctor, and should not use medication indiscriminately on their own.