Lutein is not effective in treating cataracts. Lutein refers to the plant luteinizing hormone, properly taken to help the retina against ultraviolet rays, with the role of vision protection, in addition to improving visual reaction time, reduce visual damage to the body is better. However, it should be noted that lutein has no clear effect on cataracts in general, cataracts are due to lens clouding caused by visual impairment disease, and lutein is not able to improve the clouding of the lens. Cataract patients with significant vision loss, patients with surgical treatment, such as cataract ultrasonic emulsification combined with IOL implantation, etc., to improve vision. It is recommended that cataract patients seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.