At present, there are two main categories of drugs that are more commonly used in clinical practice to nourish the optic nerve: the first category is vitamin-based drugs. More commonly used are B vitamins, such as vitamin B1, vitamin B12, methylcobalamin tablets, etc. These drugs can nourish the peripheral nerve. If there is diabetic retinopathy or optic neuropathy, you can choose these drugs to treat it. Of course, optic neuritis or anterior ischemic optic neuropathy can also be treated with these drugs. The second category is central neuroprotective agents. These drugs can effectively maintain the central nervous system. Common drugs include murine nerve growth factor or gangliosides, which are more commonly used as neurotrophic drugs. However, these drugs are prescription drugs, so be sure to go to the hospital to follow medical advice to use.