%0 Journal Article %T Preoperative subconjunctival injection of mitomycin C versus intraoperative topical application as an adjunctive treatment for surgical removal of primary pterygium %A Ghoneim Ehab %A Abd-El Ghny Ahmed %A Gab-Allah Amro %A Kamal Mohamed %J Middle East African Journal of Ophthalmology %D 2011 %I Medknow Publications %X Purpose : To compare the efficacy of preoperative local injection of mitomycin C (MMC) to intraoperative application of MMC in the prevention of pterygium recurrence after surgical removal. Materials and Methods : Seventy eyes of 70 patients with primary pterygia were randomly allocated to two groups. The first group (Group A, 35 eyes) received 0.1 ml of 0.15 mg/ml of subconjunctival MMC injected into the head of the pterygium 24 h before surgical excision with the bare sclera technique. The second group (Group B 35 eyes) underwent surgical removal with the bare sclera technique with intraoperative application of MMC (0.15 mg/ml) over bare sclera for 3 min. The study was performed between March 2007 and December 2008, and follow up was performed for 1 year postoperatively. Differences between frequencies in both groups were compared by the Chi-square test or Fisher exact test. Differences between means in both groups were compared by Student¡äs t-test. P < 0.05 was considered significant. Results : The rate of pterygium recurrence was 5.70% in Group A and 8.57% in Group B at 1 year postoperatively (P>0.05). Postoperatively, scleral thinning occurred in one eye in each group that resolved by 5 months postoperatively. No serious postoperative complications occurred in either group. Conclusion : Preoperative local injection of 0.15 mg/ml MMC is as effective as intraoperative topical application of 0.15 mg/ml MMC for preventing pterygium recurrence after surgical removal. %K Bare Sclera Technique %K Mitomycin C %K Pterygium %K Scleral Thinning %U http://www.meajo.org/article.asp?issn=0974-9233;year=2011;volume=18;issue=1;spage=37;epage=41;aulast=Ghoneim