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. Author manuscript; available in PMC: 2010 Aug 26.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2004 Sep;45(9):3144–3151. doi: 10.1167/iovs.04-0202

Figure 1.

Figure 1

(A) Thirty-six sectors along the contour line outlining the disc margin. (B) Thirty-six sectors along a contour concentric with the disc margin contour line at a radius of 1.7 mm.