Longitudinal Variability of Optic Disc and Retinal Nerve Fiber Layer Measurements
PURPOSE. To evaluate the longitudinal variability of optic disc and retinal nerve fiber layer (RNFL) measurements obtained from optical coherence tomography (OCT), scanning laser polarimetry (SLP), and confocal scanning laser ophthalmoscopy (CSLO).
METHODS. Forty-five normal and 43 glaucomatous eyes of 88 subjects were analyzed in this longitudinal study. RNFL thickness was measured by OCT (StatusOCT; Carl Zeiss Meditec, Dublin, CA) and SLP (GDx VCC; Carl Zeiss Meditec). Neuroretinal rim area was measured by CSLO (HRT 3; Heidelberg Engineering, GmbH, Dossenheim, Germany). Three separate measurements taken over an average period of 8.8 ± 1.2 months were used to evaluate measurement ...
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