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Typical FFA performed on BCCAO rats 21 days after surgery. Upper left: fundus image; upper right: blue reflectance (red-free) image. The retina was observed after fluorescein sodium was injected into caudal vein. Arterial filling appeared at 6.7 s (lower left) and complete engorgement at 8.2 s (lower right), a longer filling time compared with that before surgery.
