Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT.

Purpose: To test the hypothesis that the anatomic correlate of the gray optic disc crescent is pigmentation of externally oblique border tissue of Elschnig.

Design: Retrospective study.

Participants: African-American adult men with or without clinically apparent gray optic disc crescents.

An optometric quality assurance program.

Background: To be accredited by the Joint Commission on Accreditation of Health Care Organizations (JCAHO), a health care facility must have an ongoing quality assurance program.

Methods: In accordance with JCAHO Guidelines the Optometry Section at the Cleveland Veterans Administration Medical Center developed such a program as part of the Medical Center's hospital-wide ongoing quality assurance plan.

Results: The methodology used to develop a quality assurance program is outlined.

Analysis of the corneal endothelium in keratoconus.

The corneal endothelium in nine cases of keratoconus (18 eyes) was analyzed quantitatively for mean cell area and standard deviation (SD) of cell area to determine the presence of polymegathism. Four of the subjects were veteran wearers of rigid contact lenses and five of the subjects had not worn contact lenses previously. The subjects were matched for age, sex, and contact lens history with a group of normals.