There are a couple factors involved in how long your pupils will remain dilated after an eye test.
- the type of eye drops the eye doctor used.
- your eye color – people with dark color eyes, like brown, tend to remain dilated for a shorter period of time compared to a lighter eye color like blue.
In general though, you can count on it lasting anywhere between 3 and 4 hours. But, if your eyes are light in color it can sometimes last up to 8 hours.