AIM:To investigate the causes and characteristics of retinal detachment after vitrectomy.

METHODS: Retrospective analysis of patients in our hospital in recent 4a who underwent primary, standard, three-port pars plana vitrectomy(PPV). Retinal detachment occurred in 24 eyes(23 cases), 24-67 years old, average 49.0±12.0 years old. There were male in 17 cases, female in 6 cases, 6 right eyes, 18 left eyes.

RESULTS: Eighteen(75%)eyes without any symptoms were found during a routine check, 6 eyes(25%)with decreased visual acuity or in front of shadow. It took 1-223d from PPV to retinal detachment, average 40.7±54.2d, of which retinal detachment occurred in 10(42%)eyes within 1wk, 14(58%)eyes within 1mo. The direct cause of retinal detachment was new retinal break(a total of 27 holes)in 19 eyes, proliferative vitreoretinopathy(PVR)in 4 eyes, 1 eyes with primary hole not closed. All retinal detachment were ultimately completely reset.

CONCLUSION: The occurrence of new retinal breaks is the main cause of retinal detachment after vitrectomy, attention should be paid to the early postoperative peripheral retinal examination; after a timely surgery, the retina can be reset.