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Complications of retinotomies for subretinal fluid drainage.

We reviewed 287 cases of pars plana vitrectomy performed between January 1985 and June 1990 in which retinotomies were created for drainage of subretinal fluid or blood. We found subretinal neovascularization associated with the retinotomy site in two cases (1%) and focal proliferative vitreoretinopathy associated with the retinotomy site in seven cases (2%). These complications were more likely to occur with retinotomies made within the superior macular region (p = 0.002).