| The Comparision of Venous Filling Time Before and After Panretinal Photocoagulation in Proliferative Diabetic Retinopathy. |
|
Chin Han Pae, Sang Duck Kim, Yun Sik Yang |
|
Department of Ophthalmology, School of Medicine, Wonkwang University, Korea. ysyang@wonkwang.ac.kr |
| 증식당뇨망막병증 안에서 범안저레이저광응고술 전후에 정맥충만시간의 비교 |
|
배진한 ( Chin Han Pae ) , 김상덕 ( Sang Duck Kim ) , 양연식 ( Yun Sik Yang ) |
|
|
|
|
| Abstract |
PURPOSE
Diabetic retinopathy (DR) has influence on peripheral retina, and progression of DR is thought to make prolongation of peripheral retinal circulation. However, there has been no study on circulation of peripheral retina. This study is to make a comparision of peripheral retinal microcirculation between control, non-proliferative diabetic retin-opathy (NPDR), and pre-and post-panretinal photocoagulation (PRP) of proliferative diabetic retinopathy (PDR). METHODS: The authors performed the study on 19 control eyes and 68 DR eyes (NPDR 31, PDR 37) and PDR group was subdivided into before and after PRP. The authors measured arm to retinal circulation time (ART), arteriovenous passage time (AVP), venous filling time (VFT) by scanning laser ophthalmoscope in upper temporal retinal vessel in order to evaluate peripheral retinal microcirculation. RESULTS: VFT was 9.4+/-0.3 sec in pre-PRP of PDR, 7.5+/-0.6 sec (p<0.05) in post-PRP of PDR and 6.4+/-2.2 sec in control, 8.17+/-1.90 sec (p<0.05) in NPDR. However, there is no significant difference in ART, AVP. CONCLUSIONS: Patients with NPDR showed prolongation of VFT compared to normal indivisuals. There was shortening of VFT in post-PRP of PDR similar to NPDR. Peripheral retinal circulation time after PRP can be utilized as an indicator of PRP effect. |
| Key Words:
Diabetic retinopathy;Panretinal photocoagulation (PRP);Peripheral retinal microcirculation;Venous filling time |
|
PDF Links
Download Citation
