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

To determine the long-term repeatability of optical coherence tomography angiography (OCTA) parameters in normal eyes.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...