1. Measurement of Optic Disc Size and Rim Area with Spectral-Domain OCT and Scanning Laser Ophthalmoscopy

    Measurement of Optic Disc Size and Rim Area with Spectral-Domain OCT and Scanning Laser Ophthalmoscopy

    Purpose: To compare optic disc and neuroretinal rim area measurements from spectral-domain optical coherence tomography (SD-OCT) to those from confocal scanning laser ophthalmoscopy. Methods: Seventy-one eyes from 43 normal subjects or suspected/definite glaucoma patients were prospectively enrolled. All subjects had biometry with the IOLMaster and disc/retinal nerve fiber layer (RNFL) imaging with Cirrus SD-OCT (Optic Disc Cube 200x200) and Heidelberg Retina Tomograph (HRT). Keratometry-corrected (K-corrected) HRT measurements and uncorrected Cirrus disc and rim areas and disc measurements corrected for eye magnification with Bennett's formula (AL-corrected) along with 30-degree sectoral rim areas, vertical cup-to-disc ratio (VCDR), and cup ...

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