A post shared last Monday has captured the attention of thousands on social media after a Las Vegas cat owner noticed something unusual in her feline's eyes. The Reddit post, shared by ...

The rescued Eastern screech owl fledgling pictured here has a condition called anisocoria due to head trauma. CREDIT: New England Wildlife Center. Get the Popular Science daily newsletter💡 ...

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 ...

Pupils, the dark circles in your eyes, are usually equal in size. Unequal pupils (anisocoria) may be a sign of a medical issue. Certain medications placed in the eyes can cause the pupils to be ...

Pupils are the dark-colored openings at the center of your eyes that let light in. Doctors can look at your pupils for clues about your health. The size of your pupils and how they react to light can ...

The parasympathetic pathway within the third cranial nerve induces pupil constriction, whereas the sympathetic pathway causes pupil dilation.1 Comparing pupil sizes in dim and bright lighting can help ...

In the mirror, the pupil of the eye appears as a black circle in the middle of the iris (the colored part of the eye). Uneven pupil size, or anisocoria, may be a normal variation in a person’s eyes or ...

Abstract: From the initial phases of human–computer interaction, where the computer was unaware of the users' mental states, we are now progressing toward cognition-aware user interfaces. One crucial ...