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Year : 2015  |  Volume : 10  |  Issue : 3  |  Page : 257-262

Effect of Mitomycin-C augmented trabeculectomy on corneal endothelial cells

Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Ghasem Fakhraie
Farabi Eye Hospital, Qazvin Square, South Kargar Avenue, Tehran 13366
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2008-322X.170345

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Purpose: To evaluate the effect of mitomycin-C (MMC) on corneal endothelial cell density (ECD) and morphology after trabeculectomy. Methods: In this prospective comparative case series, 31 eyes with glaucoma underwent trabeculectomy with (group I), or without (group II) MMC. Specular microscopy was performed pre-, and postoperatively at months 1 and 3. Outcome measures included central corneal endothelial cell count and coefficient of variation (CV) of cell size. Results: Overall, mean preoperative ECD was 2,135.8 ± 397.6 cells/mm2; corresponding values at postoperative months 1 and 3 were 2,019.6 ± 447.2 cells/mm2, and 1,991.4 ± 425.5 cells/mm2, respectively (P > 0.05). Cell loss from month 1 to 3 was 1.3 % (P > 0.05). Subgroup analysis showed significant differences in endothelial cell loss at month 1 (P = 0.048) and month 3 (P = 0.014) between the MMC and control groups with no significant difference between the two groups in terms of cell loss from months 1 to 3, postoperatively (P = 0.968). Overall, mean pre-and postoperative CVs at months 1 and 3 were 27.38 ± 4.55, 27.96 ± 4.26, and 28.35 ± 4.47, respectively, with no significant difference between the two groups (P > 0.05). There was no correlation between preoperative central endothelial cell density (CECD) and MMC related cell loss. Conclusion: MMC application in trabeculectomy seems to cause a small but significant corneal endothelial loss. Most of the damage occurs intraoperatively, or in the early postoperative period, however progressive endothelial cell loss is not a major concern.

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