Analysis of SD‐OCT prognostic factors in macular edema associated with retinal vein occlusion

Abstract

PurposeTo identify quantitative and qualitative spectral‐domain optical coherence tomography (SD‐OCT) prognostic factors for visual outcome in patients with macular edema secondary to retinal vein occlusion.MethodsFourty one patients (41eyes) with retinal vein occlusion were retrospectively analyzed with SD‐OCT before and after resolution of macular edema. We evaluated the influence of these patterns on visual acuity: central macular thickness, total macular volume (TMV), continuity of the junction between photoreceptor inner and outer segments (IS/OS), of the external limiting membrane (ELM) and of the internal limiting membrane (ILM), and the number of hyperreflective foci.ResultsThe logMAR VA was significantly better in eyes with continuous IS/OS line, ELM and ILM (p < 0.001) and in eyes with a lower number of hyperreflective foci (p = 0.032). Visual acuity was also statistically better in patients with a thinner central retinal thickness (p = 0.046) and a less total macular volume (p = 0.023) in patients with BRVO.ConclusionsSD‐OCT seems to be helpful in predicting visual outcomes in macular edema associated with retinal vein occlusion and shows that outer layers integrity was closely associated with visual prognosis.