Fig. 1
From: Association between retinal microvasculature and optic disc alterations in high myopia

Peripapillary and macular perfusion were measured using optical coherence tomography angiography (OCTA) scans of the emmetropic eye. A1 Peripapillary angioflow density map of the radial peripapillary capillary layer. A2 The boundaries used for segmentation are indicated between the red and green lines on the cross-sectional OCTA reflectance. B1 Foveal avascular zone of the superficial layer. B2 The boundaries used for segmentation are indicated between the red and green lines on the cross-sectional OCTA reflectance. C1 Macular angioflow density map in the superficial layer. The sectors for measurements include the following: temporal, superior, nasal, and inferior. C2 The boundaries used for segmentation are indicated between the red and green lines on the cross-sectional OCTA reflectance. D1 Macular angioflow density map in the deep layer. The sectors for measurements include the following: temporal, superior, nasal, and inferior. D2 The boundaries used for segmentation are indicated between two green lines on the cross-sectional OCTA reflectance