Fig. 16. Correlation between visual field defect and nerve fiber layer thickness. A. Dense, glaucomatous superior arcuate scotoma in the Goldmann visual field. B. Corresponding thinning of the inferior nerve fiber layer thickness as measured by the Nerve Fiber Analyzer GDx (Laser Diagnostic Technologies, Inc., San Diego, CA) in the same eye. Y-axis numbers represent thickness in microns. T, Temporal, S, Superior, N, Nasal, I, Inferior.