Miosis
| Miosis | |
|---|---|
| Other names | Myosis, pinpoint pupil |
| Miosis from bright light pointed directly at the eye. Pupil measured 2.3 mm in diameter | |
| Pronunciation |
|
| Specialty | Ophthalmology |
| Symptoms | Constricted pupils |
Miosis, or myosis (from Ancient Greek μύειν (múein) 'to close the eyes'), is excessive constriction of the pupil. The opposite condition, mydriasis, is the dilation of the pupil. Anisocoria is the condition of one pupil being more dilated than the other.