Fig. 8From: Optical coherence tomography angiography using the black-and-white pixel binarization histogram software: a new technique for evaluating healing of macular holes in two surgical techniquesa, b Schematic drawing of ILM peeling surgery and the healing process through the MH edges without damaging the RPE. c, d Schematic drawing of the free-flap surgery and healing process with possible damage to the RPE by compression caused by the ILM flapBack to article page