Optical Coherence Tomography Optic Disc Parameters for Glaucoma

In glaucoma, optical coherence tomography (OCT) allows high-resolution imaging of the optic nerve head (ONH) and inner retinal layers and provides both qualitative and highly reproducible quantitative information on these structures. This set of information assists the clinician in the diagnosis of glaucoma and detection of its progression. This chapter focuses on OCT as a tool for ONH evaluation for glaucoma detection. Specifically, it informs the reader what the best ONH parameters are and then presents actual clinical cases showing how ONH parameters can be used effectively to diagnose prepreimetric and perimetric glaucoma.