Fig. 1
From: Effects of posterior staphyloma on choroidal structure in myopic adults: a retrospective study
Illustration of macular portion and choroidal parameters measurement. a Macular Early Treatment of Diabetic Retinopathy grid and subdivision in horizontal and vertical scans. Quadrants: Ch, central of the fovea horizontally; N1, nasal parafovea; N2, nasal perifovea; T1, temporal parafovea; T2, temporal perifovea; Cv, central of the fovea vertically; I1, inferior parafovea; I2, inferior perifovea; S1, superior parafovea; S2, superior perifovea. b Measurement of the choroidal thickness. c Image binarization and ROI selection. d Measurement of posterior scleral staphyloma height