The effect of total vitrectomy for acute retinal necrosis syndrome

Abstract

Objective To determine the effect of total vitrectomy treating acute retinal necrosis syn-drome (ARNS).Methods A consecutive 17 eyes of 17 human immunodeficiency virus-negative patients with ARNS were surgeried with total vitrectomy technique between March 2003 and October 2006.There were reti-nal detachment (RD)in 13 eyes and no RD in 4 eyes.The surgical techniques included total vitrectomy, mere-bran-peeling of epiretinal membranes and necrosing retina relaxing retinotomies/retinectomies,injecting per-flurocarbon liquid, endolaser photocoagulation, air/fluid exchange, tampornade of perfluropropane gas or sili-cone oil.The perfluropropane gas was injected in 2 eyes and silicone oil in 15 eyes.A previuos encircling band was removed in one case and an encircling was placed in only one case.Results The following-up times were 6 monthes at least.Except the retinal detachment was occurred in two patients with the tampornade of perfluro-propan gas,the remaining patients maintained retinal attachment after the initial operation.The silicone oil was uneventfully removed in 15 patients from one to 12 monthes.The final best-correcting visual acuity was light perception to counting fingers in 4 eyes,0.2～0.3 in 5 eyes,0.5～0.7 in 5 eyes,≥ 1 in 3 eyes.Conclusion There is a favorable effect in ARNS with the treatment of total vitrectomy, endolaser photocoagulation and tampor-nade of silicone oil. Key words: Acute retinal necrosis syndrome; Total vitrectomy; Retinal detachment; Endolaser photo-coagulation; Silicone oil