Purpose: To report four patients with optic disc pit-maculopathy (ODP-M) treated with transplantation of internal limiting membrane (ILM) flap, obtained by two different ILM peeling techniques, into the optic disc pit (ODP). Method and Patients:One eye of 4 patients with ODP-M underwent 23 gauge pars plana vitrectomy.Three patients underwent ILM peeling, free ILM flap transplantation to ODP, and 15-17% perfluoropropane (C3F8) gas tamponade.In these 3 patients, the ILM was transplanted to ODP after complete peeling.In one patient, the nasal fragment of the ILM was left unpeeled and then the peeled ILM flap was folded over the unpeeled portion and transplanted into ODP.Results: Serous macular detachment and intraretinal multilayered fluid regressed at the end of the postoperative 3rd month in all cases.In all patients, macular thickness decreased and best-corrected visual acuity (BCVA) increased in the postoperative 3rd month.An unexpected macular hole (MH) developed in two patients (Case 2, 3).In one of these patients, MH was closed by peeling the wider ILM, and it was observed that BCVA increased.Conclusions: ILM flap transplantation to ODP has been observed as an effective surgical technique for the treatment of ODP-M.In addition, a wider ILM peeling was observed to be effective in closure of the permanent MH that developed after ILM transplantation to ODP.