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Intraocular pressure changes in the contralateral eye after trabeculectomy with mitomycin C
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  1. I Vysniauskiene,
  2. T Shaarawy,
  3. J Flammer,
  4. I O Haefliger
  1. University Eye Clinic Basel, Switzerland
  1. Correspondence to: Tarek Shaarawy MD, University Eye Clinic Basel, Mittlere Strasse 91, 4012 Basel, Switzerland; tarek.shaarawyhcuge.ch

Abstract

Aim: To assess intraocular pressure (IOP) changes of the contralateral eyes of eyes undergoing trabeculectomy with mitomycin C (MMC).

Methods: Non-comparative retrospective study of 24 consecutive patients who underwent trabeculectomy with MMC that led to more than 45% reduction in IOP. In the contralateral eyes, IOP before surgery was compared with IOP 1 day and 1 month after surgery. 11 fellow eyes were under topical hypotensive therapy while 13 contralateral eyes were not (12 contralateral eyes had previous filtering surgery and one had normal tension glaucoma). No patients had systemic ocular hypotensive therapy.

Results: Mean IOP in all contralateral eyes decreased from 15.5 (SD 5.5) mm Hg to 12.5 (3.8) mm Hg (p<0.01), and 13.0 (4.7) mm Hg (p<0.001) 1 day and 1 month after surgery, respectively. In the 11 fellow eyes under topical ocular hypotensive therapy mean IOP was reduced from 19.5 (4.0) mm Hg to 13.5 (2.2) mm Hg (p<0.01), and 16.5 (2.8) mm Hg (p<0.05) 1 day and 1 month after surgery, respectively. In the 13 fellow eyes not under topical ocular hypotensive therapy mean IOP was reduced from 12.1 (4.2) mm Hg to 11.6 (4.7) mm Hg (p not significant) and 9.8 (3.8) mm Hg (p0.01) 1 day and 1 month after surgery, respectively.

Conclusions: In the present population, a month after trabeculectomy, mean IOP in the contralateral eyes decreased independently of whether these contralateral eyes were undergoing topical ocular hypotensive therapy or not.

  • IOP, intraocular pressure
  • MMC, mitomycin C
  • intraocular pressure
  • mitomycin C
  • trabeculectomy
  • IOP, intraocular pressure
  • MMC, mitomycin C
  • intraocular pressure
  • mitomycin C
  • trabeculectomy

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