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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Am J Ophthalmol. 2017 Jul 20;182:107–117. doi: 10.1016/j.ajo.2017.07.011

Figure 1.

Figure 1

A spectral domain optical coherence tomography angiography (OCT-A) 3 × 3 scan of the macula showing the superficial vascular plexus. The AngioVue software automatically defined a 3.0 mm × 3.0 mm square area as the whole en-face region (A), which was divided into 2 regions (white dotted line) into the superior and inferior en-face area. Moreover, a central (inner pink) circle was defined as the fovea (B), and the parafoveal region was defined as a ring surrounding the foveal region (C–F). The parafoveal region was also divided into 4 sectors of 90°, viz., as para-temporal (C), superior (D), nasal (E), and inferior (F).