Comparison of optical coherence tomography and fundus photography for measuring the optic disc size

Abstract

OCT can be used to determine optic disc margins in moderate agreement with planimetry in normal subjects. However, in some cases significant disagreement with photographic assessment may occur making manual inspection advisable. Automatic disc detection by OCT is moderately repeatable.

Correlation between cup-to-disc ratio and cup/retrobulbar optic nerve diameter proportion assessed by high-resolution ultrasound in glaucomatous eyes

“…In the present study, a high correlation was observed between BIO data and OCT data, which indicates the quality of the procedures and agrees with some studies that compared fundus photographs with OCT (14)(15)(16) . Yet, the C/D (OCT) measures showed only a moderate correlation with the C/OND (US) ratio.…”

Optic Disc Evaluation by Optical Coherence Tomography in Nonarteritic Anterior Ischemic Optic Neuropathy

“…OCT is a new imaging technique that can obtain retinal images with a resolution of up to 10 m. 9,10,14 The repeatability of the ONH measurements with the StratusOCT is moderately good, 27,28 although OCT tends to provide higher C/D ratios than those estimated by slit lamp evaluation. 27 The present study was undertaken to determine the characteristics of the ONH of patients with NAION, as measured by OCT.…”

Three-Dimensional Histomorphometry of the Normal and Early Glaucomatous Monkey Optic Nerve Head: Neural Canal and Subarachnoid Space Architecture

“…In most monkey eyes, BMO is both clearly present clinically and easily delineated within histologic reconstructions. If it can also be detected within high-resolution, spectral-domain optical coherence tomography (OCT) scans, 7,9,12,65,66 then a BMO-based, zero-reference plane for clinical imaging of the ONH may be possible. More extensive histologic and 3-D histomorphometric evidence of the relationship between BMO and the clinically visible optic disc margin is being generated in a large group of normal monkey eyes and will be the subject of a future report.…”