Indeed, vitamin A is essential to maintain eye health. And it is true that carrots contain Carrots, a fairly large amount of beta-carotene, the plant precursor of vitamin A. However, all this does not mean that eating carrots will improve vision.
The fact is that the body does not need much vitamin A to keep the eyes healthy. And we get it from many sources: spinach and other leafy greens, orange vegetables and fruits, such as pumpkin, sweet potatoes and apricots, as well as from dairy products, liver, oily fish.
In general, if a person is not starving, most likely, the level of vitamin A is already in order. Trying to improve your eyesight by adding more carrots to your diet is pointless.