Skip to main content
. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2008 Sep 4;50(1):224–234. doi: 10.1167/iovs.08-2464

Figure 3. Regional Neural Canal Landmark Offset and Depth Measurement Means, PID Maximums and PIPD (%) Maximums.

Figure 3

Concentric rings represent the different neural canal landmarks from its internal entrance (BMO) to its external exit (PSCO) as depicted in Figure 2 (BMO, ASCO, ALI, PLI, PSCO, ASAS, respectively). Depth measurements start with the ASCO rather than BMO, because the BMO points form the BMO zero reference plane for these measurements. Within each region, measurement mean is the mean of the n=6 right eye measurements for each animal and is grey scale mapped in micrometers. Physiologic inter-eye difference (PID) maximum is the upper range of the PID within each region for the n=6 PID values (from the n=6 animals) and is grey scale mapped in micrometers. Physiologic inter-eye percent difference (PIPD) maximum is the upper range of the PIPD within each region (expressed as percent (%)) for the n=6 PID values (from the n=6 animals) and is nested next to the PIPD value inside the bracket. All data are plotted in right eye configuration. S, superior; SN, superonasal; N, nasal; IN, inferonasal; I, inferior; IT, inferotemporal; T, temporal; ST, superotemporal. See Figure 2 for a detailed description of regionalization.