The Influence of Phacoemulsification on Intraocular Pressure Control and Trabeculectomy Survival in Uveitic Glaucoma

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Abstract

Objectives:

To evaluate the influence of phacoemulsification on intraocular pressure (IOP) control and survival of mitomycin C (MMC)-enhanced trabeculectomy in uveitic glaucoma (UG).

Materials and Methods:

Retrospective case-control study included 54 eyes from 40 patients with UG who underwent MMC-enhanced trabeculectomy as an initial procedure to treat glaucoma at King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia between 2002 and 2014. Eyes were divided into 2 groups: the first group included eyes that later underwent cataract surgery in the form of phacoemulsification, and the second group included eyes that did not have cataract surgery. The main outcome measures were changes in the IOP, the number of antiglaucoma medications, IOP control, and trabeculectomy survival.

Results:

There were no differences in the overall trabeculectomy survival of eyes that underwent cataract surgery and those that did not (P=0.681, log-rank) nor the final IOP [15.54 mm Hg (±6.3) in the study group and 13.34 mm Hg (±5.6) in the control group, P=0.247]. However, more antiglaucoma medications were needed to control the IOP after cataract surgery at the last follow-up [1.59 medications (±1.4) in the study group and 0.50 medications (±0.7) in the control group; P=0.009].

Conclusions:

UG eyes that underwent phacoemulsification following MMC-enhanced trabeculectomy required more medications to control the IOP than those that did not undergo cataract surgery and therefore less IOP control. Such changes in IOP control did not affect the overall trabeculectomy survival rate.

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