It is believed that you need to eat carrots and blueberries :) in fact, I do not know how many buckets of carrots and blueberries you need to eat in order to really notice the effect, therefore there are special vitamins for the eyes that contain the necessary substances, concentrated and quickly absorbed organism form. Doctors love to recommend Vitrum Vision. If you find it expensive, take any other vitamins for the eyes (for example, compliments with the mark "for the eyes"). And of course, vision is a difficult thing, so there are a million recommendations for its preservation, I just answer the question posed about food. Moreover, its deterioration for the most part still depends on heredity - either lucky or not.
I will not brag, but I am studying to be a pilot. I said this for a reason, because upon admission we have very strict health requirements (FAP MO GA), vision must be exactly 1.0, without deviations. Even despite the fact that you entered, they continue to check you 3 times a year, all according to the same column of requirements.
And now the culmination: when I was preparing for the exam, and in general I was a schoolboy, I sat for days (and now the same) at the computer. Fear not, the computer isn't as scary as people say. The main thing is not to overuse lighting. :) I was personally interested in ophthalmologists.