The pupil controls how much light enters the eye, allowing for clear vision. In low light, pupils widen to let in more light, and in bright light, they narrow to prevent too much light from entering.

It is purported that caffeine, an autonomic stimulant, affects visual performance. This study sought to assess whether caffeine intake was associated with changes in pupil size and/or amplitude of ...

Please provide your email address to receive an email when new articles are posted on . KOLOA, Hawaii – When examining a neuro-ophthalmic patient, physicians must check the pupil in the light and the ...

Aim To describe pupillary abnormalities associated with diode laser photocoagulation with subTenon’s local anaesthetic. Methods We describe four cases of tonic pupils following diabetic panretinal ...