If vision loss is due to refractive error, it is not possible to increase vision by eating certain foods, this is an irreversible process, and it is recommended to slow down the increase by wearing medical devices as well as surgical treatments. It is an irreversible process. It is recommended to wear medical devices and surgical treatment to slow down the increase of vision. Vision loss due to refractive error is clinically an irreversible process, which is essentially a change in the morphology of the eyeball, with an increase or decrease in refractive error and corresponding visual impairment. This situation cannot be changed by eating certain foods, and needs to be alleviated by relevant medical treatments. There are two main types of clinical treatments for visual impairment, the first one is wearing medical devices, such as glasses with frames and contact lenses; the second one is surgical correction, for refractive error, you can choose to thin the cornea or implant a crystal, and for farsightedness, surgery is generally less common. If the vision loss is caused by diseases, such as cataracts, you need to actively treat the primary disease, and follow the doctor’s instructions for medication or surgical treatment. In terms of diet, we need to pay attention to balanced nutrition, and try to eat a light diet. When vision loss occurs, consult a doctor in time and follow the doctor’s advice.