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 ...

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 ...

Eye dilation usually lasts four to six hours, but it can last longer depending on various factors. Light-colored eyes may stay dilated longer after an exam. After an eye exam, you may receive special ...

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 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The pupils of our eyes get larger when we are focusing on a task–and ...

Dilating drops enlarge the pupil for a better view into the back of the eye. Though dilation typically makes you light sensitive and blurs your reading vision for a few hours, it is an important part ...

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, ...

Medically reviewed by Andrew Greenberg, MD Key Takeaways Pupils naturally dilate in low light to allow more light into the ...

A routine (or comprehensive) exam uses a wide range of tests and procedures to evaluate your vision and the health of your eyes. Diagnostic tests are usually performed by a technician. These test ...

For patients preparing for an eye check, a newly FDA-approved spray could save the discomfort of receiving pupil-dilating eye drops. Eyenovia has won FDA approval for Mydcombi, a fixed-dose ...

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 ...

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 ...