Fig. 1From: Choroid and choriocapillaris changes in early-stage Parkinson’s disease: a swept-source optical coherence tomography angiography-based cross-sectional studySS-OCTA image of the outer retina. A SLO and en face image of the outer retina. Outer retinal thickness was measured with ETDRS, and thickness data of each area was generated by the built-in measurement tool. B Thickness map of the outer retina. The blue areas indicate thinning in the layer of interests. C The segmentation of the outer retina was marked between the two blue linesBack to article page