Table 5.

Volume of Basal Linear Deposit in Concentric Macular Regions

Region	Volume, Median (mm3)	Weighted, Median (mm)	Volume, Quartile 3 (mm3)	Weighted, Quartile 3 (mm)
r (0.5 mm)	0.0019	0.0024	0.0042	0.0054
r (1.5 mm)	0.0153	0.0022	0.0315	0.0045
r (2.5 mm)	0.0373	0.0019	0.0692	0.0035
r (3.0 mm)	0.0499	0.0018	0.0864	0.0031
Inner ring	0.0134	0.0021	0.0273	0.0043
Outer ring	0.0346	0.0016	0.0549	0.0026

Regions are centered on the fovea. The volume of BLinD was calculated based on the geometric model of BLinD distribution in the Supplementary Figure S1. Which has also been weighted by region area. r = 0.5, r = 1.5, and r = 3.0 correspond to the outer boundary of the central subfield, inner ring, and outer ring of Early Treatment of Diabetic Retinopathy Study grading grid for color fundus photography.⁴⁴

r, radius.