Quantification of nerve fiber layer thickness in normal and glaucomatous eyes using optical coherence tomography.

Published

Journal Article

PURPOSE: Quantitative assessment of nerve fiber layer (NFL) thickness in normal and glaucomatous eyes, and correlation with conventional measurements of the optic nerve structure and function. METHODS: We studied 59 eyes of 33 subjects by conventional ophthalmologic physical examination, Humphrey 24-2 visual fields, stereoscopic optic nerve head photography, and optical coherence tomography. RESULTS: Nerve fiber layer thickness as measured by optical coherence tomography demonstrated a high degree of correlation with functional status of the optic nerve, as measured by visual field examination (P = .0001). Neither cupping of the optic nerve nor neuroretinal rim area were as strongly associated with visual field loss as was NFL thickness (P = .17 and P = .21, respectively). Cupping correlated with NFL thickness only when the cup was small (cup-to-diameter ratio, 0.1 to 0.3) or large (cup-to-diameter ratio, 0.8 to 1.0) (P = .006); there was no correlation between cupping and NFL thickness otherwise. Nerve fiber layer, especially in the inferior quadrant, was significantly thinner in glaucomatous eyes than in normal eyes (P = .04). Finally, we found a decrease in NFL thickness with aging, even when controlling for factors associated with the diagnosis of glaucoma (P = .03). CONCLUSIONS: Nerve fiber layer thickness can be measured using optical coherence tomography. These measurements provide good structural and functional correlation with known parameters.

Full Text

Duke Authors

Cited Authors

  • Schuman, JS; Hee, MR; Puliafito, CA; Wong, C; Pedut-Kloizman, T; Lin, CP; Hertzmark, E; Izatt, JA; Swanson, EA; Fujimoto, JG

Published Date

  • May 1995

Published In

Volume / Issue

  • 113 / 5

Start / End Page

  • 586 - 596

PubMed ID

  • 7748128

Pubmed Central ID

  • 7748128

Electronic International Standard Serial Number (EISSN)

  • 1538-3601

International Standard Serial Number (ISSN)

  • 0003-9950

Digital Object Identifier (DOI)

  • 10.1001/archopht.1995.01100050054031

Language

  • eng