Confirmation of visual field abnormalities in the ocular hypertension treatment study

Abstract

Objective: To determine the frequency with which visual field abnormalities observed on follow-up visual fields for patients in the Ocular Hypertension Treatment Study were confirmed on retest. Methods: Between April 1, 1994, and March 1, 1999, 21603 visual fields were obtained from 1637 patients in the Ocular Hypertension Treatment Study. When follow-up visual fields are outside the normal limits on the Glaucoma Hemifield Test, the Corrected Pattern Standard Deviation (P