The Effect of Posterior Vitreous Detachment on Visual Prognosis in Branch Retinal Vein Occlusion.

Lee, Sang Hyeok; Park, Young Hoon; Lim, Heung Sik

Original Article

Journal of the Korean Ophthalmological Society 2000;41(1):98-102.
Published online January 1, 2000.

The Effect of Posterior Vitreous Detachment on Visual Prognosis in Branch Retinal Vein Occlusion.

Sang Hyeok Lee, Young Hoon Park, Heung Sik Lim

Department of Ophthalmology, Yeungnam University College of Medicine.

망막정맥분지폐쇄에 있어서 후유리체막박리가 시력에 미치는 영향

이상혁(Sang Hyeok Lee),박영훈(Young Hoon Park),임흥식(Heung Sik Lim)

Abstract

The common causes of visual loss in branch retinal vein occlusion[BRVO] have been reported as the macular edema, macular non-perfusion and the vitreous hemorrhage due to neovascularization.These factors have close relationship with the status of the posterior vitreous. The purpose of this study was to evaluate the factors of visual prognosis in BRVO and the relationship between visual prognosis and vitreomacular status.Fifty-two patients with branch retinal vein occlusion in the department of ophthalmology, Yeungnam University college of Medicine were included for vitreo macular examination.The eyes were classified as two groups, vitreomacular attachment[Group I]and posterior vitreous detachment[Group II]. The incidence of macular edema was significantly lower in eyes with group I [Fisher's exact Test:p<0.05].Final visual acuity was better than the initial visual acuity, regardless of the presence of posterior vitreous detachment [Paired t-test:p<0.01].Group I developed higher rate of neovascularization and vitreous hemorrhage, but statistical significance was not noted.

Key Words: Posterior vitreous detachment;Branch retinal vein occlusion