Autologous patch graft in tube shunt surgery

Purpose: To evaluate an alternate method of covering the subconjunctival po rtion of the tube in aqueous shunt surgery. Evidence of tube erosion, graft -related infection, graft melting, or other associated intraocular complica tions were evaluated. Methods: A retrospective study of 16 patients (17 eyes) who underwent tube shunt surgery at Wills Eye Hospital between July 1991 and October 1996 was conducted, An autologous either "free" or "rotating" scleral lamellar graft was created to cover the subconjunctival portion of the tube shunt. Results: All patients were evaluated for at least 6 months, with a mean fol low-up of 14.8 months (range 6-62 months). All eyes tolerated the autologou s graft well, with no clinical evidence of tube erosion, or graft-related o r intraocular complications. Conclusion: Autologous patch graft in tube shunt surgery appears-in selecte d cases-to be an effective, safe and inexpensive surgical alternative to al logenic graft materials. It also offers ease of availability, and eliminate s the risk of transmitting infectious disease.