Abstract

OCTA generates a 3D image based on the motion contrast of moving blood cells, provides several advantages over FA. Its ability to resolve depth allows for imaging the intricate capillary networks in retinal capillary plexuses and choriocapillary, offering a detailed view.
PURPOSE- to study the changes in choriocapillary network along with other vascular parameters i.e. the FAZ, SCP, DCP in early DR using OCTA imaging METHOD- a prospective cross sectional study was done in 25 patients with early DR and 25 patients with HTN retinopathy. OCTA done for all and studied. RESULTS-choriocapillary hypoperfusion noted in DR and no significant change in choriocapillary network in patients with HTN retinopathy. increase in FAZ, reduced SCP, DCP noted in both subsets. CONCLUSION- along with the retinal vasculature , the choroidal vasculature is affected in DR and is significantly dependent on the DR stage and highlights the importance of choriocapillary impairment in macular dysfunction in DR.