Methods ➢Acquired using the PLEX Elite 9000 Swept Source OCT system ➢5 averaged 3 x 3 mm images temporal & nasal to optic disc ➢Extracted the superficial vascular complex (SVP), deep vascular complex (DVC) and choriocapillaris ➢Axial length adjusted Parameters Retinal Vascular Parameters: 1. Superficial vascular complex vessel density (SVC VD) 2. Deep vascular complex vessel density (DVC VD) Choriocapillaris Parameters: 1. Flow deficit number (FDN): total number of FD 2. Flow deficit area

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... total area occupied by FD 3. Mean flow deficit size (MFDS): average area of FD 4. Flow deficit density (FDD): percentage of image area with no flow to the total image area