Abstract
Optical coherence tomography (OCT) evaluates the optic nerve head (ONH), peripapillary retinal nerve fiber layer, and inner retinal layers at the macula for detecting structural abnormalities in glaucoma. The optic disc and retinal nerve fiber layer are the principal sites of apparent glaucomatous damage, which precedes glaucomatous visual field defects. The currently accepted gold standards for glaucoma diagnosis are ONH analysis for structural changes and perimetry to monitor changes in function. However, imaging technology OCT is playing an increasing role in glaucoma diagnosis, monitoring of disease progress, and quantification of structural damage. This article focused on the principle of OCT, applications of both anterior and posterior segment OCT in glaucoma management, and interpretation of OCT reports.
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