The age, sex, refractive error, symptoms, history of trauma, and objective evidence of trauma were evaluated in 50 cases of retinal detachment caused by dialysis. The location of the dialysis, associated ocular and retinal findings, reattachment rate, and visual acuity results of these 50 cases are reviewed. Analysis of the cases in this series strongly suggests that virtually all retinal dialyses result from blunt ocular trauma and that a genetic weakness in the inferotemporal quadrant is not an important factor in the development of retinal dialyses.