Understand the basics of the earnings per share ratio and how this important financial metric is calculated in Excel and ... Read Answer >>. The amount of shares outstanding in a company will often change due to a company issuing new shares, repurchasing and retiring ... Read Answer >>.
The duration of pupil dilation depends on the type and concentration of the drug used. Generally, dilation lasts three to six hours. Sometimes, the dilation can extend up to 24 hours if a more concentrated drug is used. Atropine is a common eye drop used to dilate pupils during eye examination. Eye color can also determine the duration of pupil dilation.
It depends on what was used to dilate the pupils. An eye doctor often adds drops to neutralize the effects after an exam. I usually rinse my eyes with cool water soon after an exam, which seems to help. It takes several hours for the pupils to go back to normal, though. 3 people found this useful.