1. Long‐term repeatability of optical coherence tomography angiography parameters in healthy eyes

    Long‐term repeatability of optical coherence tomography angiography parameters in healthy eyes

    Purpose To determine the long‐term repeatability of optical coherence tomography angiography (OCTA) parameters in normal eyes. Methods We prospectively enrolled 104 normal eyes. Participants were divided into three groups based on differences in the signal strength (SS) of OCTA scans obtained at two visits at least 6 months apart: group 1, SS difference = 2; group 2, 1; group 3, 0. We measured a foveal centred scan area of 3 × 3 mm pattern. All measurements were performed twice at 5‐min intervals at the initial visit. The second measurements were performed at least 6 months later. Results In short‐term ...

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