Depends.... Atropine can last a week. Mydriacyl (tropicamide) about 4 hours.
Depends. On what drops were used to dilate the eyes. The most frequently used ones usually last 2-4 hours but can last a day or more in some people.
Few hours. Can last a few hours.
1-2 hours. Usually 1-2 hours, but it might last up to 3 hours, but after the first hour you'll see vision will get better slowly.
A few hours. Typical dilation usually lasts between 4 and 6 hours. When a chile is dilated, it may last a few hours longer. If dilation lasts more than 24 hours, you should contact your eye doctor.
4 hours. Usually, around 4 hours, however in eyes that are lighter in color, blue, two-toned, or green the effect of the drops can last beyond 4 hours. In small children, although rare, the effect can last up to a week or more.
Hours. Braun eyes - 2-4 hours blue eyes up to a day.