Three-Dimenional Evaluation of Vitreomacular Traction and Epiretinal Membrane Uing pectral-Domain Optical Coherence Tomography Original Reearch Article

Purpoe To delineate the 3-dimenional (3-D) relationhip in vitreomacular traction (VMT) and idiopathic epiretinal membrane (ERM). Deign Obervational cae erie. Method Forty-eight evaluable eye of 35 patient with VMT or idiopathic ERM were invetigated with pectral-domain (D) optical coherence tomography (OCT). VMT wa defined a focal if the diameter of the vitreou attachment wa 1500 μm or le and broad if it wa more than 1500 μm. The 3-D OCT repreentation of vitreomacular interface abnormalitie wa evaluated. Reult Focal VMT wa een in five eye. Broad VMT wa een in even eye. Of thee 12 eye, concurrent ERM under the detached vitreou were een in 10 eye and zone of hyperreflectivity affecting the adjacent detached poterior hyaloid face were een in 11 eye. Eye with focal VMT howed a foveal cavitation, wherea eye with broad VMT had more widepread cytoid macular edema. Idiopathic ERM wa een in 36 eye; 30 had complete poterior vitreou detachment (PVD), five had partial PVD aociated with attached poterior hyaloid at ome peripheral portion of the ERM, and one had no PVD. Concluion The D OCT with 3-D image recontruction provided unprecedented viualization of VMT and idiopathic ERM. The vitreou attachment to the macula can be ubclaified into two ubgroup, each having pecific induced alteration in retinal anatomy. Mot of the eye with VMT had concurrent ERM, wherea everal eye with idiopathic ERM had attachment of the vitreou to ome portion of the ERM, which ugget there i ignificant overlap between VMT and idiopathic ERM.