Choriocapillaris flow loss in center-involving retinitis pigmentosa: a quantitative optical coherence tomography angiography study using a novel classification system.

Choriocapillaris flow loss was associated with fovea-involving photoreceptor damage in RP. Further research is warranted to validate this putative association and clarify causation. Choriocapillaris imaging using OCTA may provide information to supplement structural OCT findings when evaluating subjects with RP in neuroprotective or regenerative clinical trials.