How long does it take to get 20 vision when you eat carrots and not watch television or go on the computer?

Answer 1

You will need to stick with glasses, contacts or laser surgery for this - not carrots and staying away from the tv and computer. Yes, carrots are high in vitamin A - but there is no scientific proof that they have any effect on your vision. This is one of those things that your parents tell you to get you to eat your veggies - a folk lore perhaps would be a better description. Also it is possible (as it is with a lot of vitamins) to OD on vitamin A. While is it extremely rare to die from an overdose of vitamin A - anything is possible. Carrots are also high in betacarotene and you can actually turn your skin yellow or orange by overdosing on betacarotene - it is called carotenemia. Yes, your eyes may become tired or feel strained if you sit too close to the TV or you stare at the computer too long -- but you are not going to strengthen them by any means by staying away. Like I said above, eye glasses, contacts or laser surgery are the way to go if you need to improve your vision.