Lutein belongs to a class of carotenoids and is beneficial for cataract patients. But for the treatment of cataracts only play a supporting role. Lutein contains two ketone rings in its chemical formula and is the main pigment present in the macular region of the retina of the human eye. Lutein is a fat-soluble vitamin that helps protect the retina of the eye against ultraviolet rays. Supplementation of the body with large amounts of lutein can help maintain the durability of vision and reduce the effects of visual damage. So far very few patients are cured of cataracts simply by medication, most people are cured of cataracts by surgery, even for early cataract patients, most of the therapeutic drugs are similar to the role of lutein, are only able to play a role in slowing down the development of the disease. Surgical treatment of cataracts is a very mature technology, and the process of surgery, damage is small, the time is short, and the recovery is fast, usually does not affect the patient’s normal life and work. However, it is still recommended that patients go to the hospital to find out the cause of the disease before doing so, and choose the most suitable treatment plan for themselves.