CLINICAL FINDINGS AFTER VITRECTOMY FOR RE TINAL-DETACHMENT ASSOCIATEDWITH AN OPTIC DISC PIT

Background The exact pathogenesis of central retinal detachment associ ated with optic disc pit is still unknown. Vitrectomy has proven to be the most effective therapy. Patients and Methods In two patients with macular detachment associated with optic disc pit. a pars-plana-vitre ctomy with surgical posterior vitreous detachment and gastamponade was performed. We report on the interesting clinical course of these pati ents. Results After the gas bubble was absorbed, we observed a displac ement of the subretinal fluid inferiorly in both patients. Schisislike changes persisted in the macular area. After several months the subre tinal fluid resolved completely. Conclusion The fluid displacement and the resolution-characteristics of the subretinal fluid after vitrecto my in cases of retinal detachment associated with optic disc pit are c ompletely different from other rhegmatogenous retinal detachments. The gas bubble separates the central retinoschisis from the peripheral rh egmatogenous part. The reason for delayed resolution remains unclear. It may be due to tangential vitreous traction in the periphery.