Medically reviewed by Andrew Greenberg, MD Key Takeaways Eye dilation usually lasts four to six hours, but it can last longer depending on various factors.Light-colored eyes may stay dilated longer ...

Dilated pupils mean that your pupils appear larger in size. The most common reason for dilated pupils is low light in a dark room since lower light causes your pupils to grow. Dilated pupils are also ...

Medically reviewed by Johnstone M. Kim, MD Key Takeaways Mydriasis is when the pupil stays wide and doesn't respond to light.Certain medicines, like antihistamines and atropine, can cause ...

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 ...

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 ...

Your eyes don’t lie. When you like someone, you’re drawn to them. Your gaze lingers, and your pupils widen, taking in as much of them as you can. No matter how hard you try to play it cool, this ...

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 ...