(a)
(b)
(c)
(d)
Figure 2: Mean data of RNFL thickness against eye quadrants assessed with optical coherence tomography (OCT). (a) Peripapillary segmentation retinal nerve fiber layer, (b) Central macular ring (1 mm away from the fovea). (c) Inner macular ring (3 mm away from the fovea). (d) Outer macular ring (6 mm away from the fovea). value < 0.01.