mydriasis

Dilation of the pupil of the eye, especially when excessive or prolonged, usually as a result of trauma, a medical disorder, or a drug.

In medicine, a morbid dilatation of the pupil of the eye.

Hydrophthalmia.

A long-continued or excessive dilatation of the pupil of the eye.

The condition of having abnormally large and dilated pupils due to disease or drugs, particularly stimulants such as (meth)amphetamines, cocaine, etc.

reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs