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Linear regressions from central retinal vessel trunk location (CRVTL) to central visual field (VF) loss of C4 for mild glaucoma (r = −0.11, P = .04), moderate glaucoma (r = −0.39, P = .01), and severe glaucoma (r = −0.63, P = .002), respectively. C4 refers to the 4 most central VF locations from our annular scheme.
