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. Author manuscript; available in PMC: 2024 Sep 15.
Published in final edited form as: Ophthalmol Retina. 2019 Feb 6;3(6):478–488. doi: 10.1016/j.oret.2019.01.024

Table 1.

Baseline Choriocapillaris Percentage Flow Deficits and Average Flow Deficit Area Measurements in the Different Areas around the Geographic Atrophy

Region of Interest Percentage FDs (SD) [Range] Average FD Area, mm2 (SD) [Range]
Rim 1 (1 degree: 0—300 μm out) 28.8 (9.1) [16.3—49.6] 0.0048 (0.0025) [0.0022—0.0132]
Rim 2 (from 301 to 600 μm out) 24.4 (9.5) [10.7—46.9] 0.0034 (0.0015) [0.0019—0.0074]
Rim 3 (total scan area minus GA+R1+R2) 14.0 (3.5) [7.2—20.6] 0.0027 (0.0006) [0.0019—0.0074]
Total scan area minus GA 16.8 (3.8) [10.9—25.1] 0.0034 (0.0010) [0.0024—0.0060]

FD = flow deficit; GA = geographic atrophy; R1 = Region 1; R2 = Region 2; SD = standard deviation.