CORONADO, California — Transient pupil contractions in response to bright blue light can objectively reveal optic neuropathy in one eye, independent of its fellow eye, researchers say. "This could be ...

The keen practitioner can gain helpful information simply by assessing pupillary responses. The pupils will offer substantial insight into one’s ocular health and the state of the visual pathways ...

Scientists from the University of California San Diego School of Medicine are suggesting Alzheimer’s disease may be detected years before symptoms appear by examining pupil dilation. The new study ...

Marcus Gunn pupil is also known as Marcus Gunn sign and relative afferent pupillary defect (RAPD). It’s when the eye’s pupil only slightly contracts or dilates when light shines over it, instead of ...

Pupils, which are the dark dots in the center of your eyes. They shrink or widen to control how much light gets into your eye. During the test, your doctor will make sure your pupils are in the right ...