The main reason why glasses are not useful in cases of vision loss caused by cataracts is because of the mechanism of vision loss caused by cataracts. Cataracts are caused by clouding of the lens, so even wearing glasses in this case will not improve vision. If there is refractive error in the eye, such as myopia, hyperopia or astigmatism, these conditions can be improved by wearing glasses, while the main treatment for cataracts is still surgery. When cataracts are very serious and vision loss is obvious, surgery can be considered. The most common surgical procedure is cataract ultrasonic emulsion aspiration combined with IOL implantation. The most common surgical procedure is cataract ultrasonic aspiration combined with IOL implantation. This surgery is very less invasive and the recovery is relatively fast. Therefore, when cataracts appear in the eye, it is necessary to have a clear examination and consider surgery if there are indications for surgery.