Abstract

To analyze choroidal and choriocapillaris changes in eyes affected by active unilateral central serous chorioretinopathy (CSC). A total of 17 eyes suffering from naïve CSC were enrolled. In addition, 17 healthy fellow eyes were analyzed, and 10 eyes were enrolled as controls. Main outcome measures were choroidal vascularity index (CVI), best-corrected visual acuity (BCVA), central macular thickness (CMT), subfoveal choroidal thickness (SFCT), and pigment epithelial detachment (PED) presence and maximum height (PED-MH). In addition, choriocapillaris and choroidal flow analysis in the two concentric areas surrounding the fovea were analyzed. CCT was higher in affected eyes than healthy ones (P = 0.007). CVI was significantly higher in affected eyes (P = 0.027) and in fellow eyes (P = 0.027) compared to healthy. The choriocapillaris analysis showed interesting results in the first ring, with statistically significant differences between diseased eyes and fellow eyes and in diseased eyes compared to healthy ones. Besides, in the second ring analysis a lower flow in choriocapillaris was found in diseased eyes compared with healthy (P = 0.019). The choroidal flow analysis showed lower flow in affected eyes in the first and second ring when comparing diseased eyes with healthy controls (P = 0.006). Choroidal and choriocapillaris flow abnormalities occur in both eyes affected by CSC and fellow eyes with different trends depending on the area of study reinforcing the key role of choroid and choriocapillaris in the pathogenesis of disease. Understanding choroidal and choriocapillaris flow abnormalities in CSC eyes could give us new biomarkers able to monitor disease.

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