Researchers have investigated the impact of 10-min very light exercise on pupil size and prefrontal function. Their findings provide the first evidence that changes in pupil size during exercise can ...

Examining the pupil and performing motility checks are key for effectively managing patients with ptosis and catching underlying conditions, according to a speaker at Hawaiian Eye 2026. “When you ...

For over a century, scientists believed that light, focus distance, and cognitive effort were the main forces behind changes in pupil size. But a new discovery adds breathing to that list. Researchers ...

For more than a century, scientists have understood that three factors control pupil size: light, focus distance, and ...

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, ...

Please provide your email address to receive an email when new articles are posted on . We tend to think of the pupil as a simple structure but, in fact, it is constantly in flux. The pupil is ...