If you feel that your vision has decreased, you should go to the hospital for a detailed examination to clarify the specific causes of vision loss, and choose the treatment method according to the specific cause of the disease. If the vision loss is caused by refractive errors, such as myopia or astigmatism, glasses can be used to improve vision. If the vision loss is caused by cataracts, there is usually no need to deal with it in the early stages. When the condition worsens and causes significant vision loss, cataract surgery can be considered to improve vision. If the vision loss is caused by glaucoma, it is important to lower the intraocular pressure as soon as possible to avoid further damage to the visual function. If the vision loss is caused by fundus diseases, such as retinal detachment, early surgery is needed to avoid further aggravation of the condition.