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Abstract #13983 Published in IGR 8-3
Disease severity of familial glaucoma compared with sporadic glaucoma
Wu J; Hewitt AW; Green CM; Ring MA; McCartney PJ; Craig JE; Mackey DAArchives of Ophthalmology 2006; 124: 950-954
See also comment(s) by Paul Healey •
OBJECTIVE: To determine whether there is a difference in disease severity between familial and sporadic primary open-angle glaucoma (POAG). METHODS: A cross-sectional study design compared the distribution of Glaucoma Inheritance Study in Tasmania (GIST) severity scores of patients with genealogically confirmed familial POAG and those with sporadic POAG. The GIST severity scores provide a combined weighting of glaucoma severity based on findings from visual field defects and optic disc analysis, with and without intraocular pressure. A Poisson regression analysis, t test, and Χ2 tests were performed. RESULTS: One thousand twelve (59.5%) of 1700 subjects had familial glaucoma. The mean ± SD age at examination was greater in the sporadic POAG group compared with the familial group (72.6 ± 10.3 years vs 70.6 ± 12.6 years; P = .001). The family group was significantly younger at diagnosis than the sporadic group (mean ± SD, 61.4 ± 13.0 years vs 64.0 ± 12.6 years; P < .001). The GIST severity scores were significantly skewed toward greater disease severity in the familial group compared with the sporadic group (P < .001). CONCLUSION: Identifying individuals at risk of severe POAG will be more successful if screening programs are developed with appropriate weighting toward those with a positive family history of the disease.
Dr. J. Wu, Department of Ophthalmology, Royal Hobart Hospital, University of Tasmania, Hobart, Tasmania, Australia
Classification:
1.2 Population genetics (Part of: 1 General aspects)
1.6 Prevention and screening (Part of: 1 General aspects)
9.2.2 Other risk factors for glaucoma (Part of: 9 Clinical forms of glaucomas > 9.2 Primary open angle glaucomas)
