Fig. 2 | Scientific Reports

Fig. 2

From: Longitudinal quantitative assessment of macular retinal and choroidal remodeling after trabeculectomy in chronic primary angle-closure glaucoma using ultra-widefield SS-OCTA

Fig. 2

Illustration of the macular ETDRS grid for retinal and choroidal analysis. The macular region was divided into three concentric rings with diameters of 1 mm, 3 mm, and 6 mm centered on the fovea. Sectors are defined as follows: C1, central fovea (0–1 mm); S3, superior sector within 1–3 mm; S6, superior sector within 3–6 mm; I3, inferior sector within 1–3 mm; I6, inferior sector within 3–6 mm; N3, nasal sector within 1–3 mm; N6, nasal sector within 3–6 mm; T3, temporal sector within 1–3 mm; and T6, temporal sector within 3–6 mm.

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