A Case of Long-term Follow-up After Vitrectomy of Epiretinal Membrane with Coats Disease: Case Report

Purpose: To report a stable long-term course after vitrectomy of epiretinal membrane associated with Coats disease.Case summary: A 60-year-old female patient visited our clinic for visual discomfort.She was diagnosed with an epiretinal membrane and macular edema associated with Coats disease.Vitrectomy, epiretinal membrane peeling, inner limiting membrane peeling, phacoemulsification with posterior chamber intraocular lens implantation and laser photocoagulation were performed.Two months after vitrectomy, uncorrected visual acuity (VA) improved to 0.5, and four months later, VA improved to 0.8.There continued to be gradual improvement, and at 13 months, few exudates were observed in the macula, and VA was measured as 1.0.At 21 months postoperative, new telangiectatic lesions and macular edema were found, so laser photocoagulation and intravitreal bevacizumab injection were performed again.One month later, due to decreased VA to 0.4 and increased subretinal fluid, fluorescein angiography was done, followed by laser photocoagulation and intravitreal bevacizumab injection.At 2 years postoperatively, subretinal fluid and intraretinal fluid were absorbed, macular edema decreased, and VA was restored to 1.0.Conclusions: In an epiretinal membrane associated with Coats disease, vitrectomy can be an effective treatment method.However, continuous follow-up and appropriate treatment are required even after surgery