Patients with vision loss should first identify the cause before taking targeted treatment to enhance their vision, not all vision loss can be enhanced by taking medication or food. For patients with central plasma choroidal retinopathy, oral lecithin complex iodine tablets and other drugs can promote the absorption of subretinal fluid, thus improving vision. For patients with uveitis, oral treatment with drugs such as prednisolone can eliminate the inflammation and improve vision. However, for cataracts, retinal detachment and other causes of vision loss, generally need to be treated by surgery to improve vision, and for refractive error caused by vision loss, need to wear glasses or laser corrective surgery to improve vision. Patients should visit the ophthalmology department of the hospital in time to find out the cause of the symptoms, and then the doctor will take targeted treatment.