Yeah, you are right, eating mangoes will help you with your eyesight, including increase your eyesight. As we all know, our eyesight has something to do with the vitamin A, that is to say, if you the vitamin A you take in is not enough, your eyesight is likely nearsighted. According to the research, a cup of the sliced mangoes will supply 25%of the needed daily value of vitamin A, which will do much benefit for our eyesight. In addition, eating mangoes frequently can help us to reduce the possibility of night blindness and dry eyes, itching as well. Apart from the vitamin A, the mangoes also contain some other nutrition, such as the Vitamin B6, and Vitamin E. As we all know that the vitamin E is very helpful for our eyes. As a matter of the fact, we sincerely hope you can eat enough mangoes so that we will have good eyesight. Hope my ideas can help you.