PMID: 19396784Apr 28, 2009

Coexistent primary open-angle glaucoma and cataract: interim analysis of a trabecular micro-bypass stent and concurrent cataract surgery

European Journal of Ophthalmology
Detlev SpiegelJulián García-Sánchez


To evaluate the safety and efficacy of the iStent Trabecular Micro-bypass Stent in patients undergoing concurrent cataract and glaucoma surgery. Prospective, 24-month, uncontrolled, multicenter, multicountry evaluation of 58 patients with uncontrolled primary open-angle glaucoma (including pseudoexfoliation and pigmentary) and cataract. Patients underwent clear cornea phacoemulsification followed by ab interno gonioscopically guided implantation of the iStent. Of the 48 per protocol population, 42 patients completed 12 months of the 24-month study, and their data are included in this interim analysis. At baseline, mean (+/-SD) intraocular pressure (IOP) was 21.7+/-3.98 mmHg. At 12 months, mean IOP was reduced to 17.4+/-2.99 mmHg, a mean IOP reduction of 4.4+/-4.54 mmHg (p<0.001, 18.3%). At baseline, patients were taking a mean 1.6+/-0.8 medications. By 12 months, the mean number of medications was reduced to 0.4+/-0.62 (p<0.001). Half the patients achieved an IOP < or =18 mmHg and were able to discontinue hypotensive medication by the 12-month visit. The most commonly reported device-related adverse events were the appearance of stent lumen obstruction (7 eyes) and stent malposition (6 eyes). None of the adverse events were dee...Continue Reading


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