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Int Ophthalmol. 2012 Feb;32(1):9-14. doi: 10.1007/s10792-011-9512-2. Epub 2012 Jan 13.

Glaucoma therapy escalation in eyes with pseudophakic corneal edema after penetrating keratoplasty and Descemet's stripping automated endothelial keratoplasty.

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Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.


The purpose of this study was to determine and compare the prevalence of glaucoma therapy escalation (GTE) after penetrating keratoplasty (PKP) and Descemet's stripping automated endothelial keratoplasty (DSAEK) in eyes with a surgical indication of pseudophakic corneal edema. A retrospective review was conducted of the medical records of all patients who underwent PKP or DSAEK to treat pseudophakic corneal edema at a tertiary eye care center from January 1 2003 to December 31, 2006. Eyes that were treated with PKP from January 1, 2003 to December 31, 2004 and with DSAEK from January 1, 2005 to December 31, 2006 were included in the statistical analysis. Inclusion criteria included satisfactory preoperative control of intraocular pressure (IOP) and follow-up of at least 12 months. The main outcome measure was GTE, which was defined as a sustained requirement for escalation of topical medical therapy or the need to provide surgical intervention to maintain a satisfactory postoperative IOP. Among 54 eyes that met the inclusion criteria, GTE occurred in 7 (35.0%) of 20 eyes after PKP and in 14 (41.2%) of 34 eyes after DSAEK (P = 0.78) during a mean follow-up period of 27.6 and 28.6 months, respectively. Surgical escalation occurred in 2 (10.0%) eyes after PKP and 2 (5.9%) eyes after DSAEK (P = 0.62), and was associated with late-onset endothelial graft failure in all four eyes. Glaucoma therapy escalation is relatively common and occurs with comparable frequency in eyes with pseudophakic corneal edema after PKP and DSAEK.

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