Early Glaucomatous Defects in The Central 10° of the Visual Field

Abstract

Background: The early detection of glaucoma is imperative for functional vision preservation. Utilizing both structural measurements and functional assessments together improve the capability of glaucoma detection. New testing methods are continuously developed with the goal of earlier disease detection and improvement of disease monitoring. Aim of the work: In our study we have attempted
to detect early glaucomatous defects in the central 10° of the visual field. Material and methods: This prospective study was carried out on 30 eyes with mild to moderate glaucomatous optic neuropathy. All patients were with POAG patients, all of them with glaucomatous optic neuropathy on fundus examination (Humphrey Visual Field Analyzer; Carl Zeiss Meditec Inc) Only eyes with
reliable 24-2 and 10-2 VFs, defined as fixation losses of 33% or less, false positives of 15% or less, and false negatives of 20% or less. Results: There was a positive significant correlation between 24-2 and 10-2 at diagnosis of central scotoma and No significant scotoma but there was no significant correlation between 24-2 and 10-2 at diagnosis of other focal defect. Conclusion: 10-2 was a good tool to diagnosis of early glaucoma when compared with 24-2 with high significant especially with diagnosis of central scotoma and no significant scotoma (p=0.016) and (p=0.031) respectively.