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Majda Hadziahmetovic, Kelly Williamson, Amanda Y Lehman, Jessica M Ackert; Higher than Expected Prevalence of Glaucoma in Community Centered Practice. Invest. Ophthalmol. Vis. Sci. 2014;55(13):4271.
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To report a higher than expected prevalence of glaucoma at Drexel Eye Physicians, located in center city Philadelphia, which serves predominately indigent and ethnically diverse population. We will also review the epidemiology of different types of glaucoma and identify risk factors for the observed increase in diagnosis.
Retrospective chart review examining diagnosis codes of all new patients seen at Drexel Eye Physicians. Diagnosis codes of open angle glaucoma (365.11), open angle with borderline findings high risk and low risk (365.01, 365.05), acute angle closure (365.22), and anatomic narrow angles (365.02) were included. 5800 gender, age and race/ethnicity diverse beneficiaries were examined. Patients were diagnosed as glaucoma suspects or with open angle glaucoma based on standardized criteria by those used by the Rotterdam Study and Foster and associates. Anatomical narrow angles (ANA) were diagnosed by gonioscopy findings of trabecular obstruction by the peripheral iris in conjunction with OCT imaging of anterior segment showing narrow anterior chamber angles.
Our preliminary data show a prevalence of diagnosis codes associated with at-risk patients for glaucoma of 22.13%, substantially higher than previous reports. Broken down by year, prevalence’s of 19.5%, 20.2% and 26.35% for 2011, 2012 and 2013 respectively were observed. 16.8% of patients were classified as glaucoma with borderline findings, the majority of which were subsequently diagnosed with OAG. Anatomic narrow angles were observed in 2.7% of all new patients and comprised 12% of glaucoma diagnosis codes.
Our preliminary data show a significantly higher than expected prevalence of glaucoma related disease. Findings from our study emphasize that estimates of glaucoma prevalence may be higher than previously reported. A lower socioeconomic status seems to be a marker for a higher risk of developing glaucoma, though further study is needed to identify the factors behind this finding.
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