Resolution of tractional macular edema following spontaneous detachment of residual vitreous cortex in a vitrectomized eye.

A 15-year-old boy underwent pars plana vitrectomy and lensectomy following blunt closed-globe injury. Postoperatively, he had visual distortion and a decline in visual acuity attributable to tractional macular edema caused by clinically apparent residual vitreous cortex. One month later, macular edema resolved and visual acuity improved following spontaneous vitreous separation. This case illustrates what has been termed the posterior bursa macularis and emphasizes its pathoetiologic role in vitreomacular disease.