Fig. 2From: Utility of combining spectral domain optical coherence tomography structural parameters for the diagnosis of early Glaucoma: a mini-reviewQuantification of minimum rim width (MRW) with Spectralis OCT. OCT fundus photograph (top panel) with disc margin (red dots) as the device will place it. MRW analysis with B-scans corresponding to the 12 clock-hours where the red line represents the internal limiting membrane (LM), the green arrow represents the MRW extending from the Bruch’s membrane opening (BMO) to the ILM (middle panel). The bottom panel shows the sectors for which MRW is generated by the device (same sectors as peripapillary RNFL thickness). Image courtesy of Alexandre Reis, MD, Department of Ophthalmology, University of Campinas, Campinas, BrazilBack to article page