Table 2 Fluorescein angiographic retinal vascular changes in ROP patients treated with IVR
Feature | No. of eyes (%) |
|---|---|
Avascular zone of peripheral retina | |
2 Disk-diameter | 36 (81.8) |
Posterior zone II | 2 (4.55) |
Zone I | 6 (13.64) |
At the junction vascular–avascular retina | |
Finger-like branching | 23 (52.27) |
Shunts near the junction | 13 (29.55) |
Blunting | 10 (22.73) |
Double blunting | 6 (13.64) |
Popcorn abnormalities | 6 (13.64) |
Finger-like anastomosis | 11 (25.00) |
Leakage | 7 (15.91) |
Neovascularization | 5 (11.36) |
Inside vascularized zone | |
Tortuosity | 26 (59.09) |
Focal dilation of capillaries | 2 (4.55) |
Loops | 5 (11.36) |
AV Shunt (main vessel) | 8 (18.18) |
Shunt crossing horizontal raphe | 13 (29.55) |
Capillary dropout | 3 (6.82) |
Choroid and capillary bed | |
RPE atrophy | 7 (15.91) |
Lobular choroidal filling | 15 (34.09) |
Abnormal lacy or feathery retinal capillary bed | 14 (31.82) |
Fovea and macula | |
Vessel encroaching onto fovea | 6 (13.64) |
Vessel crossing fovea | 0 (0) |
Absence of FAZ | 0 (0) |