Fig. 1From: Diabetic retinopathy with extensively large area of capillary non-perfusion: characteristics and treatment outcomesDiagrams showing measurement of area of capillary non-perfusion (CNP) in diabetic retinopathy. A Angiographic images of a patient with large area of retinal capillary non-perfusion except the macular region. B, C The area of CNP was measured by manually circling the CNP area (B) and filling it with color (C) using the Image-Pro Plus 6.0 software. The measurement was performed by two dependent researchers and an average was takenBack to article page