1. Features of cotton wool spots in diabetic retinopathy: a spectral-domain optical coherence tomography angiography study

    Features of cotton wool spots in diabetic retinopathy: a spectral-domain optical coherence tomography angiography study

    Purpose To describe the features of cotton wool spots (CWSs) in diabetic retinopathy (DR) by using spectral-domain optical coherence tomography (SD-OCT) and optical coherence tomography angiography (OCT angiography). Methods We retrospectively studied patients with DR who presented CWSs and had been imaged by SD-OCT angiography. The retinal layer localisation and dimensions of the CWSs were assessed on SD-OCT, while the decorrelation signal generated by the CWSs and the vascular density (VD) of the superficial capillary plexus (SCP) and deep capillary plexus around the CWSs and in the macula were assessed on OCT angiography. Results A total of 87 eyes of ...

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