First of all, it depends on whether there is really a degree, if you go to the hospital or opticians to check there is indeed a real degree, no matter what you eat there is no way to restore vision, you need to wear glasses to see clearly, adults can do surgery. If only fatigue caused by vision loss, this situation can be restored, you can eat more lutein and anthocyanin more food, including corn, carrots, spinach, pumpkin, blueberries, grapes, cherries, mulberries, etc., these foods are better for the eyes, but also can effectively relieve visual fatigue. If the eyes are dry, you can also supplement vitamin A, which is also better for the eyes. The most important thing is to pay attention to eye habits, reduce the use of electronic products, especially cell phones, it is best not to turn off the lights at night to look at the phone, do not lie down, lying down to look at the phone, etc., as little as possible to do low head.