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Article
November 1963

The Chamber Angle in Split-Pupil

Author Affiliations

Baltimore; Iowa City, Iowa
From the Department of Ophthalmology, College of Medicine, State University of Iowa.

Arch Ophthalmol. 1963;70(5):598-602. doi:10.1001/archopht.1963.00960050600004
Abstract

The occurrence of a congenital slit-like pupil, also referred to as "cat pupil" is rare. One or both pupils may be elongated, oval, or form a vertical, horizontal, or oblique slit. Although reports on this deformity have been published before,1,2 the etiology of slitlike pupil has been the subject of much speculation, since most of the previous observations were made before gonioscopy became an office procedure. The anatomical conditions leading to the deformity of the pupil, however, become obvious on gonioscopic inspection of the chamber angle and will be illustrated in this report of a child with cerebellar hypoplasia, hydrocephalus, and bilateral pupillary anomalies.

Report of Case  The patient was referred to the Pediatric Department of the State University of Iowa College of Medicine at the age of 11 months for a neurological disorder. Except for preeclampsia in the first and the last trimester of pregnancy, the birth history

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