Question

We feel blinded for a short while entering a dark room when coming from bright light

Answer 1

It is because of a blind spot on our eyes

Answer 2

Answer:because of bleaching of photo pigments of today by light

Explanation:Ross have photo pigments called rhodopsin which dissociate into scotopsin and retinal(derivative of vitamin A ) on light. On reducing light intensity , they unite and start forming rhodopsin (with increasing darkness). when immediately we enter the dark this process occurs slowly. Thus we feel blind , until all the rhodopsin is retained