A person’s pupils may be of different sizes (anisocoria) for several reasons, including physical trauma, response to light, and infection. The condition may also be present from birth. Pupils, or the ...

ST. LOUIS — Google searches for "hurt eyes" spiked nationwide on the day of the total solar eclipse on April 8. NASA and doctors across the nation repeatedly warned the public about wearing necessary ...

Patients with different pupil sizes have no initial statistical difference after wavefront-guided LASIK, but by 12 months, patients with small pupils experienced worsening symptoms of glare at night.

Every day when a premium surgeon enters the operating room to perform ophthalmic surgery, pupillary dilation — the portal to the operative field — will inevitably have a major stake in the success and ...

The precision with which people make decisions can be predicted by measuring pupil size before they are presented with any information about the decision, according to a new study. The precision with ...

ITHACA, N.Y. – Cornell University researchers have found the pupil is key to understanding how, and when, the brain forms strong, long-lasting memories. By studying mice equipped with brain electrodes ...

“The effect was so strong, we knew immediately that we were onto something important,” recalls Nikola Grujic, a postdoc in the Neurobehavioural Dynamics Laboratory at ETH Zurich. Through a series of ...

Visual illusions of motion are a major source of interest in the vision research community. Explaining how a still image can produce an illusory perception of motion is important for a more complete ...

Arousal is a fundamental part of how our brain keeps us alert, engaged, and responsive to the world around us. It is controlled by networks deep in the brainstem, like the locus coeruleus (LC), which ...