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Purpose: To evaluate the indications, complications, and long-term outcomes with the use of a Gundersen flap for the treatment of various ocular surface conditions in an Asian population., Design: Retrospective case series., Study Subjects: Twenty-five eyes of 25 subjects who had undergone conjunctival flap surgery performed from 1999 to 2004 at the Singapore National Eye Centre., Methods: Review of case records for indications and outcomes of patients undergoing Gundersen flap surgery., Main Outcome Measures: Surgical success was defined as attainment of a stable ocular surface with resolution of symptoms and no flap retraction or dehiscence resulting in reexposure of the corneal surface. Complications to be noted included infection, progression of the inflammatory or infectious disease process beneath the flap, flap loss from epithelial ingrowth, and epithelial cyst formation., Results: Surgical success was achieved in all eyes. Intraoperative and postoperative complications were encountered in 6 patients (24%). One case had a buttonhole, 3 cases had partial flap retractions, and 2 had epithelial inclusion cysts., Conclusions: The Gundersen flap is still an important procedure and should be considered as a means of stabilizing globe integrity in the management of cases of severe ocular surface disease, particularly when visual potential is poor.