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Figure 1 | BMC Ophthalmology

Figure 1

From: Comparison of localized retinal nerve fiber layer defects in highly myopic, myopic, and non-myopic patients with normal-tension glaucoma: a retrospective cross-sectional study

Figure 1

Parameters for retinal nerve fiber layer (RNFL) photography [[15]]. Reference line d extends from the center of the disc to the center of the fovea. Angle I is the minimum angle between the reference line and a line from the disc center to the point of the disc margin nearest the border of the defect. Angle II is the sum (b + c) of the angular widths of the defects.

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