| International FP- 012 |
| Comparison of radial peripapillary vascular density in patients underwent epiretinal membrane peeling between with and without vitreo-peripapillary traction. |
| Retina Service, Department of Ophthalmology, Hangil Eye Hospital, Incheon, South Korea (1)
Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea (2) |
| Gisung Son(1), Yoon Jeon Kim(2) |
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Purpose : To analyze the radial peripapillary vascular density (p-VD) in patients underwent epiretinal membrane (ERM) peeling according to the presence of vitreo-papillary traction (VPT)
Methods : Best corrected visual acuity (BCVA), central foveal thickness (CFT) and p-VD obtained with optical coherence tomography angiogram (OCTA) was analyzed in 58 eyes with ERM (20 eyes with VPT and 38 eyes without VPT) and 25 control eyes before and 6 months after ERM operation. P-VD was analyzed according to the four radial peripapillary regions.
Results : The patients with ERM were 63.92±9.10 years old in average. Preoperatively, none of BCVA (p=0.276), CFT (p=0.880) or TMV (p=0.547) was not different according to the presence of VPT. P-VD was lower in ERM patients than control (48.35±4.90 vs. 50.86±3.76, p=0.029), while p-VD was not different according to the presence of VPT (p=0.080). After 6 months after ERM removal, peripapillary VD decreased from 48.35±4.90% to 46.61±4.67 (p=0.049), especially in temporal (p=0.002) and inferior (p=0.016) region. In temporal peripapillary region, patients with VPT presented a bigger drop in p-VD than patients without VPT 6 months after ERM removal (p=0.030).
Conclusion : Radial p-VD was lower in patients with ERM before and 6 months after the operation. The decreased p-VD was observed after ERM peeling, especially in temporal and inferior peripapillary region. The presence of VPT was associated with worse aggravation in temporal p-VD after ERM removal.
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