so i know its a common myth that eating carrots will improve your eyesight, i read in a book that eating carrots does not really improve your ability to see. recently i've gotten into an argument and the opposing argument was that it helped you see at night. if you're going to answer this dont just answer it but please back your argument. thank you.
Michael T
Favorite Answer
Yes, carrots do help some not as much as you hear about but it is true that they do, especially with night vision that they help with site. It has to do with the shrinking of the pupil of the eye with the vitamin A helping the eye transpose rhodopsin from the cis to the tras position. .Vitamin A is required in the production of rhodopsin, the visual pigment used in low light levels when hit by light rhodopsin gets photobleached when exposed to light and turned into a position (cis or trans) that the eye can not use any more for low light level seeing. if it was not for vitamin A there would be no way to turn the rhodopsin back into a usable position for the eye in low light levels. Vitamin A allows for the carbonyl carbon of rhodopsin to have something to attach to while it is being flipped back into the right position. It take the body about 30 minutes to turn all photobleached rhodopsin back into usable form. this is why your vision gets better the longer you are in darkness the more your eyes adapt.
you can read more at the sources below
Mary
Improve Your Eyesight Naturally
Elizabeth
Carrots contain beta-carotene which the body converts to vitamin A. A lack of vitamin A can cause some vision problems, but eating massive amounts of carrots won't help your eyesight.
Renae
Naturally Improve Your Vision 20/20 : http://Eye.ClearVisionExercise.com
Wilbur
1