Myth: Eating a lot of carrots gives you great night vision.

Reality: Vitamin A is a major nutrient found in carrots, and it is good for the health of your eyes — especially those with poor vision. But eating a bunch of the vegetables won’t give your all-seeing superpowers. 

Source: https://www.businessinsider.com/worst-science-health-myths-2016-1?IR=T#myth-eating-a-lot-of-carrots-gives-you-great-night-vision-52