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  Indian J Med Microbiol
 

Figure 1: Images of optical coherence tomography angiography used for ImageJ analysis in an eye with nonarteritic anterior ischemic optic neuropathy (a) and in the normal fellow eye (b) showing a circle drawn around the disc and then a second circle drawn to delineate the peripapillary vascular zone

Figure 1: Images of optical coherence tomography angiography used for ImageJ analysis in an eye with nonarteritic anterior ischemic optic neuropathy (a) and in the normal fellow eye (b) showing a circle drawn around the disc and then a second circle drawn to delineate the peripapillary vascular zone