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Year : 2004  |  Volume : 52  |  Issue : 1  |  Page : 23-28

A comparative study of small Incision trabeculectomy avoiding tenon's capsule vis--vis trabeculectomy with mitomycin-C

Guru Nanak Eye Centre, Maulana Azad Medical College, New Delhi, India

Correspondence Address:
J Das
Guru Nanak Eye Centre, Maulana Azad Medical College, New Delhi
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Source of Support: None, Conflict of Interest: None

PMID: 15132375

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Purpose: To compare the results of small incision trabeculectomy avoiding Tenon's capsule (SIT) vis--vis intraoperative use of Mitomycin-C (MMC) in primary chronic angle closure glaucoma. Methods: A controlled prospective study was conducted on 60 consecutive primary chronic angle closure glaucoma patients requiring glaucoma filtration surgery. Patients were divided into two groups, Group I (n=30): those undergoing SIT and Group II (n=30): those undergoing trabeculectomy with MMC. Patients were followed up serially for 24 months and their intraocular pressure (IOP) was monitored. Success was defined as IOP 22 mm Hg with no additional anti-glaucoma medication or laser/surgical intervention. Success was also defined as a 30% reduction from the initial IOP at which optic disc cupping and/or visual field changes occurred. Results: The final mean IOP with SIT was 16.804.20 mm Hg as against 17.843.80 mm Hg with trabeculectomy with MMC. Final success rate of 93.3% was obtained with SIT versus 90% with trabeculectomy with MMC. No major complications were seen with either procedure. Conclusion: Small incision trabeculectomy safely and effectively reduces the IOP in over 90% cases. The advantages of this procedure over trabeculectomy with MMC are its low cost, use of a small (2.5 mm) limbal incision which obviates the dissection of Tenon's capsule and absence of any major complication.

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