Q: My elderly cat’s pupils seem to stay dilated, even in bright light. Why? A: In old cats, dilated pupils are often just a sign of a harmless condition called iris atrophy. However, if your cat has ...
The Washington Post: Ask a Vet: Why are my cat’s pupils dilated all the time?
Ask a Vet: Why are my cat’s pupils dilated all the time?
MSN: Ask a Vet: Why are my cat’s pupils dilated all the time?
The Conversation: Why do our pupils dilate when we’re aroused? Anatomy experts explain
The normal pupil size in adults varies from 2 to 4 mm in diameter in bright light to 4 to 8 mm in the dark. The pupils are generally equal in size. They constrict to direct illumination (direct response) and to illumination of the opposite eye (consensual response). The pupil dilates in the dark. Both pupils constrict when the eye is focused on a near object (accommodative response). The pupil ...
The pupils are the parts of the eye that constrict and dilate in response to light, controlled by the iris. Pupil-related eye conditions include anisocoria, cataracts, miosis and Horner syndrome. Different ways to take care of the pupil include booking regular eye exams, stopping smoking and eating a balanced diet.
Medical News Today: Dilated pupils meaning: Is it a sign of love?
Dilated pupils (mydriasis) occur when the pupils open larger than usual. This normally happens in darker lighting to allow more light into the eye, but dilated pupils can also indicate an underlying ...
Normally, our pupils dilate in response to changing light; as it gets darker, our pupils get larger. But they expand in size for other reasons as well, including when we’re sexually aroused and when ...