It takes how many seconds after exposure to headlight glare for the pupil to adapt once again to dark conditions

The correct answer for above statement is:

The pupil of the eye is defined as the black circle at the midpoint of the iris. The pupil purposes essentially to control the amount of light striking inside the eyes, to make sure that to many lights does not etiolate out the images in greatly bright light situations, and to catch as much light as feasible in dim light circumstances.It can be slowed down by use of alcohol