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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Am J Ophthalmol. 2013 Jun 7;156(3):578–587.e1. doi: 10.1016/j.ajo.2013.04.015

Figure 1.

Figure 1

Illustration of the structure function map for the right eye used for sectorial estimation of retinal ganglion cell counts. The map divides the standard automated perimetry plot into 10 sectors (Left), with 10 corresponding optic disc sectors, each of 36-degrees.(Center) The location of the retinal nerve fiber layer defect was determined by fitting a 10-segment circle, corresponding to the 10 zones of the structure function map, to the optic disc photograph.(Right) In this example, the visible nerve fiber defect is in sector 8.