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. 2022 Jun 16;140(8):763–770. doi: 10.1001/jamaophthalmol.2022.1946

Figure 1. Optic Nerve Head (ONH) and Retinal Optical Coherence Tomography Parameters.

Figure 1.

A, 30° Infrared image showing a radial scan pattern (green) centered on the ONH, best-fit Bruch membrane opening (BMO) ellipse (orange), and concentric ellipses forming the boundaries for total retinal thickness (TRT) measurement (white). B, Radial B-scan illustrating ONH parameters and relevant landmarks, including BMO, minimum rim width (MRW), BM reference, BMO height, BMO reference, cup reference, optic cup (blue shaded region), and the boundaries for TRT measurement (labeled white dashed lines). C, 30° Infrared image illustrating a radial scan pattern (green) centered on the macula and boundaries for macular thickness measurements (white). D, Radial B-scan showing the boundaries for macular thickness measurement (labeled white dashed lines) and fovea (yellow arrowhead).