Figure 2

A representative example of non-DME DR eye. (a,b) B-scan of spectral domain OCT showing no apparent structural abnormalities in the macular region. (c) The en face image of customized OCT slabs showing MLCs (white dots) in macular angiography 6 × 6 mm scan by Cirrus HD-OCT 5000. (d) Background-flattened MLC layer by using ImageJ software. Noise reduction was performed on (c) to remove background irregularities and vascular artifacts. (e) Signal enhancement of MLCs on (d) to improve cell identification by using ImageJ software. DME diabetic macular edema, OCT optical coherence tomography, MLCs macrophage-like cells, HD high definition.