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.
Variable: Many factors influence how long dilating drops remain active after instilled. These include how strong a drop was used, how sensitive the patient is to the drop, color of the eyes (blue usually stay dilated longer), and other factors. Most dilating drops used for diagnostic purposes in the office wear off after 4-24 hours.