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Scatter diagram comparing preoperative and postoperative visual acuities in group A. Key: 1 = 6/6, 2 = 6/9, 3 = 6/12, 4 = 6/18, 5 = 6/24, 6 = 6/36, 7 = 6/60, 8 = 3/60, 9 = 1/60, 10 = counting fingers, 11 = hand movements, 12 = perception of light, 13 = non-perception of light.
