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 ...

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 ...

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 ...

The eyes are often referred to as the “windows to the soul.” In fact, there is a grain of neurobiological truth to this. An international research team from the Universities of Göttingen and Tübingen, ...

From a scientific perspective, it may sound a bit too fanciful to call our eyes “windows to the soul.” But research suggests that looking into them can, quite literally, offer a peep into a person’s ...

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 ...

I just had an eye exams and this is the first time I've had dilation drops put into my eyes. Everything looks kind of blurry. I forgot to ask the doctor this: Is it ok to put in my contacts now, or ...

Substance misuse causes severe side effects, affecting a person's general wellness. It affects their mental and physical health. One of the significant side effects is changes in the appearance of the ...

This story is from The Pulse, a weekly health and science podcast. Find it on Apple Podcasts, Spotify or wherever you get your podcasts. The videos go like this: Someone uses their phone to zoom in on ...

After Stormy Daniels talked to Anderson Cooper, the internet blew up with suspicions that the adult film star who allegedly slept with Donald Trump took drugs.

His gaze softens as he draws closer to you. With one hand around your waist and the other cradling your jaw, he pulls you in. You look into his eyes, and notice his pupils have grown large and hungry.