Dilated pupils (mydriasis or fixed pupils) are when your eyes' pupils, which let light into your eyes, become wider. This can happen due to medications used during an eye exam (mydriatic drops), other ...

Researchers at Karolinska Institutet in Sweden have discovered a fundamental mechanism that affects the size of the pupil, namely our breathing. The study, published in The Journal of Physiology ...

It’s also well established that our pupils constrict when focusing on a nearby object, and dilate in response to cognitive effort or emotional arousal. As the German pupil-research pioneer Irene ...

Usually, the pupils in each eye dilate or constrict simultaneously. When they do not, the pupils may appear to be different sizes. In this article, learn about the possible causes for pupils of ...

However, it is not just light that our pupils respond to. It's also well established that our pupils constrict when focusing on a nearby object, and dilate in response to cognitive effort or emotional ...

However, it is not just light that our pupils respond to. It’s also well established that our pupils constrict when focusing on a nearby object, and dilate in response to cognitive effort or emotional ...

A lot is riding on Apple Intelligence, but the tech is simultaneously too hot and underbaked. Features are rolling out slowly without being very impressive. Some of this can be blamed on the ...

Roberto De Vicenzo (left) sits beside Masters winner Bob Goalby after their match at Augusta National Golf Club on April 14, 1968. The two entered final round with a 271-tie. De Vicenzo, of ...