Experts disagree on who needs it and when. Here’s what the evidence suggests. By Michelle Crouch Perhaps the most unpleasant part of an eye exam is when the doctor squeezes in the dreaded drops to ...

If you have your pupils dilated for an eye exam, they may stay dilated for several hours. Your eye health provider dilates your pupils so they can get a clear view of the internal structures of your ...

A trip to the eye doctor. It’s not always a favorite activity, and on top of that, one sometimes has to endure the annoyance of dilation. It lengthens the time in the doctor’s office, it makes the ...

Normally, a person's pupils naturally widen (or dilate) in low-light environments to allow more light into the eye. However, in a new study, researchers reported that a person's pupils also dilate ...

On the other hand, Dr. William Barlow of the University of Utah's Moran Eye Center notes, "Dilation isn't always required. In fact, if you are seeing your eye doctor solely to get a prescription, ...

The pupils of our eyes get larger when we are focusing on a task–and the size may give clues about our working memory capabilities, a new study has found. A person's pupils dilate in low-light ...

Diabetic eye disease is the leading cause of blindness among people ages 40 to 60. The longer you have diabetes, the greater your likelihood of developing vision problems increases. Keeping blood ...

At my job, I'm going to be working with a new laser soon, and as such, I have to pass some certifications to become a laser operator. One of the requirements is that I take an eye exam to determine if ...

The colored part of the eye surrounding the pupil is called the iris. It automatically regulates the amount of light entering the eyes by regulating the size of the pupil. Light is the primary ...

Working memory is one of the brain’s executive functions, a skill that allows humans to process information without losing track of what they’re doing. In the short term, working memory allows the ...