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  • Title: Prevalence of ocular surface complaints in patients with glaucoma using topical intraocular pressure-lowering medications.
    Author: Fechtner RD, Godfrey DG, Budenz D, Stewart JA, Stewart WC, Jasek MC.
    Journal: Cornea; 2010 Jun; 29(6):618-21. PubMed ID: 20386433.
    Abstract:
    PURPOSE: To determine the prevalence of ocular surface disease (OSD) in patients with glaucoma using topical intraocular pressure (IOP)-lowering therapy. METHODS: This prospective observational study enrolled patients with primary open-angle glaucoma or ocular hypertension who were on a topical IOP-lowering medication regimen. Enrolled patients completed the ocular surface disease index (OSDI) and OSDI scores (0-100, with 0 representing no symptoms) were calculated for each patient. Medical history, demographics, and concomitant medication information were also collected. RESULTS: Overall, 630 patients from 10 sites participated. Of these, 305 patients (48.4%) had an OSDI score indicating either mild (n = 134, 21.3%), moderate (n = 84, 13.3%), or severe (n = 87, 13.8%) OSD symptoms. OSDI scores were significantly different between patients with and without a prior diagnosis of dry eye syndrome (25.2 +/- 15.4 vs 15.4 +/- 15.8, respectively; P = 0.0036) and between patients who did and did not use artificial tears at the time of study participation (23.0 +/- 15.6 vs 15.3 +/- 15.8, respectively; P = 0.0046). Mean OSDI scores varied significantly with the number of topical IOP-lowering medications used, with higher (more severe) OSDI scores in patients using multiple IOP-lowering medications. Specifically, patients on a single medication had a mean OSDI score of 12.9 +/- 13.1, which was significantly lower than those of patients on 2 (16.7 +/- 17.0; P = 0.007) or 3 medications (19.4 +/- 18.1; P = 0.0001). CONCLUSIONS: OSD is prevalent among medically treated patients with glaucoma. The severity of OSD symptoms is positively correlated to the number of IOP-lowering medications used.
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