[Microvitreoretinal surgery for management of giant retinal tears with posterior flat folded-over]

Twelve cases (12 eyes) of giant retinal tears with posterior flat folded-over were treated using vitrectomy, membrane peeling, and air or silicone oil tamponade. The operations were successful in 4 of the 5 cases of silicone oil tamponade group and in 2 of the 7 cases of air tamponade group. All the successfully operated eyes (6 eyes) had a visual acuity of 0.05 or better. We believe that vitrectomy makes it possible for the folded-over and fixed retina to recover mobilization and return to its normal anatomic position.