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Pre- and intraoperative mitomycin C for recurrent pterygium associated with symblepharon

Authors Mohammed I

Received 19 November 2012

Accepted for publication 12 December 2012

Published 23 January 2013 Volume 2013:7 Pages 199—202

DOI https://doi.org/10.2147/OPTH.S40472

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Isyaku Mohammed

Department of Ophthalmology, Aminu Kano Teaching Hospital, Kano, Nigeria

Background: Treatment of recurrent pterygium associated with symblepharon usually involves the use of tissue grafting and/or the intraoperative application of mitomycin C (MMC). For the graft, a conjunctival/limbal autograft and/or amniotic membrane may be used. This generally requires extra technical skills and assistance, an increase in the cost and duration of surgery, and a more extensive anesthesia (a complete eye block or general anesthesia). Although widely used, safety concerns have been raised over MMC in the treatment of pterygia.
Objective: The objective of this case report is to report the successful use of preoperative subconjunctival injection of low-dose (0.02%) MMC one month before bare sclera excision of a multirecurrent pterygium, as well as the concomitant intraoperative application of MMC to the conjunctival fornix of the same eye after the excision of an associated symblepharon.
Case report: A 31-year-old man from Kano, Northern Nigeria, presented to the eye clinic with a recurrent pterygium associated with an upper lid symblepharon in his right eye. He has had five previous pterygium excisions, with the last surgery involving conjunctival autografting and subconjunctival steroid injection. He was subsequently given 0.1 mL of 0.02% MMC as a subpterygial injection; one month later he had an alcohol-assisted bare sclera pterygium excision and a symblepharolysis with the intraoperative application of 0.02% MMC for 1 minute to the upper conjunctival fornix. Except for a Tenon granuloma that was simply excised, there has been no recurrence or other complications up to a year after surgery.
Conclusion: As a cheaper and technically easier treatment option, a preoperative subconjunctival MMC injection followed by bare sclera pterygium excision was found to be effective in this patient with a recurrent pterygium. As at one-year follow-up, low-dose preoperative MMC a month prior to surgery also appeared safe and effective when combined with its intraoperative application to the conjunctival fornix for the treatment of associated symblepharon.

Keywords: mitomycin C, pterygium, recurrence, symblepharon

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