To report a case of serous macular detachment associated with tractional fibrous tissue in an optic pit patient successfully treated by vitrectomy without laser photocoagulation.

A 15-year-old female visited our hospital for visual disturbance of her left eye. The patient's best-corrected visual acuity was 0.5. After ophthalmic examinations, the patient was diagnosed with an optic pit associated serous macular detachment. Pars plana vitrectomy with complete posterior vitreous detachment was performed. A thick fibrous tissue within the optic disc cupping was found. During removal of the fibrous tissue, the tissue was observed to be attached to a tiny hole above the optic pit. The thick fibrous tissue was tugging at the margin of the hole and was removed using intraocular forceps to relieve the traction. Fluid-gas exchange was then performed and the operation was completed without laser photocoagulation around the optic disc. The fovea was reattached completely in 12 months and visual acuity was improved to 0.8.