NERVE-FIBER ANALYSIS AND OPTIC DISC PARAMETERS WITH THE GLAUCOMA-SCOPE

Purpose: We evaluated the ability of optic disc parameters and nerve f iber analysis with the Glaucoma-scope to distinguish glaucoma from nor mal or hypertensive eyes. Methods: Glaucoma-scope examination was perf ormed on 68 eyes of 44 patients split into following groups based on H umphrey 24-2 visual field and clinical criteria of glaucoma: normal ey es (n = 17), ocular hypertension (n = 19), early glaucoma (n = 17), mo derately advanced glaucoma (n = 15). The contour of the juxta papillar y nerve fiber layers was measured in the four groups. We also evaluate d a global index as the mean disc depth corrected for the disc size by dividing by the disc area (MP/D). Results: We found a statistical dif ference (p < 0.001) between the four groups with the global index MP/D : normal eyes MP/D = -17.42, hypertensive eyes MP/D = -26.34, early gl aucoma MP/D = -82.33, moderately advanced glaucoma MP/D = -99.69. We a lso found a statistical difference between the first two groups (norma l visual field) compared to the two glaucoma groups for the mean fiber layer height in the superior and the inferior quadrant. Conclusion: N erve fiber analysis and optic nerve head index calculated with the Gla ucoma-scope could prove to be an interesting tool for glaucoma diagnos is and follow-up.