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Table 4 Pearson correlation coefficient between the VA (logMAR) and percentage of white dots

From: 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 techniques

White dot percentagePearson’s correlation
EstimateP value
ILM peeling (N = 5)
 3 x 3-mm square0.9170.029
 1.5-mm-diameter circle0.7780.121
 0.5-mm-diameter circle0.2060.739
Free flap (N = 5) 
 3x 3-mm square0.4750.418
 1.5-mm-diameter circle0.2270.714
 0.5-mm-diameter circle0.0140.983