망막분지정맥폐쇄에서 황반중심부의 후유리체박리가 황반부종에 미치는 영향

The Effect of Posterior Vitreous Detachment on Macular Edema in Branch Retinal Vein Occlusion

Purpose: To quantitatively compare the role of posterior vitreous detachment in macular edema associated with branch retinal vein occlusion (BRVO) using OCT. Methods: A retrospective study of 36 eyes with BRVO-associated macular edema was carried out from November 2003 to February 2005. There was posterior vitreous detachment (PVD) in 23 eyes [PVD (+) group], and vitreoretinal attachment on the fovea in 31 eyes [PVD (-) group]. PVD was detected with an indirect ophthalmoscope or 90D lens. The foveal thicknesses of the two groups were measured and compared. Results: The mean foveal thicknesses of the PVD (-) and PVD (+) groups were 398.0±217.2 ?m and 233.6±80.6 ?m, respectively (p=0.000, Mann-Whitney test). The mean BCVA (log MAR) was 0.77±0.52 in the PVD (-) group and 0.40±0.37 in the PVD (+) group (p=0.002, Mann-Whitney test). Conclusions: The extent of macular edema associated with BRVO was significantly less in the PVD(+) group and BCVA was significantly better in the PVD (+) group as well.