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 ...

When people are awake, their pupils regularly change in size. Those changes are meaningful, reflecting shifting attention or vigilance, for example. Now, researchers reporting in Current Biology on ...

To evaluate the effect of pupil size on higher-order aberrations (HOAs) in high-myopic pseudophakic eyes with posterior staphyloma using KR-1W aberrometer. Nowadays, cataract surgery has changed from ...

Martin Schaefer is affiliated with Karolinska Institutet. You have probably heard the saying that the eyes are the windows to the soul, but now it turns out that they are also connected to how we ...

When people are awake, their pupils regularly change in size. Those changes are meaningful, reflecting shifting attention or vigilance, for example. Now, researchers have found in studies of mice that ...

It is commonly known that pupil size fluctuates in response to brightness and darkness during wakefulness. What is less commonly known is that pupil size is also regulated by the autonomic nervous ...