mydriasis

[ mi-drahy-uh-sis, mahy- ]

noun

, Medicine/Medical.

1. excessive dilatation of the pupil of the eye, as the result of disease, drugs, or the like.

mydriasis

/ maɪ-; mɪˈdraɪəsɪs /

noun

1. abnormal dilation of the pupil of the eye, produced by drugs, coma, etc

Word History and Origins

Origin of mydriasis¹

1650–60; < Latin mydriāsis < Greek mydríāsis

Word History and Origins

Origin of mydriasis¹

C17: via Late Latin from Greek; origin obscure

Example Sentences

Visual acuteness on both sides 5/12, the left slightly better than the right; emmetropia in mydriasis by atropine.

From Project Gutenberg

Mydriasis does not always occur, and when it does, is much less than with cocaine.

From Project Gutenberg

During the seizure, the pupil does not react (this cannot be simulated) or there is excessive mydriasis.

From Project Gutenberg

At the same time there is a certain amount of mydriasis, but this is less pronounced than that produced by atropine.

From Project Gutenberg

Mydriasis, mi-drī′a-sis, n. morbid dilatation of the pupil of the eye.

From Project Gutenberg