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Abstract #13594 Published in IGR 8-2
Systemic blood pressure, intraocular pressure and primary open-glaucoma: A population-based study in Shaanxi Province of China
Bai Z-L; Ren B-C; Yang J-G; He Y; Chen L; Sun N-XInternational Journal of Ophthalmology 2005; 5: 1122-1127
AIM: To investigate the association of primary open-glaucoma (POAG), intraocular pressure (IOP) and systemic blood pressure in a rural population aged 50 years old or above in Shaanxi Province, China. METHODS: In the population-based, cross-sectional study, 1 775 (83.53%) residents, aged 50 years old or above, from three counties of Shaanxi Province, China, undertook an interview with a standard questionnaire and a detailed eye examination, including logarithm of the minimum angle of resolution visual acuity, slit-lamp biomicroscopy, applanation tonometry and dilated fundus examination. Two blood pressure reading in the sitting position were taken. Gonioscopy was performed if a narrower peripheral anterior chamber (less than one fourth of the corneal thickness) was indicated. Automated visual field testing was performed by participants assessed to have suspicion of giaucomatous disc damage or if IOP was 22 mmHg or higher. RESULTS: IOP significantly correlated with systemic blood pressure, and both IOP and systolic blood pressure increased significantly with increasing age. No association between POAG and hypertension was found. The frequency of POAG increased significantly with lower diastolic perfusion pressure. CONCLUSION: Data in our study are accordance with those reported in other population-based studies, and confirm that lower diastolic perfusion pressure is a significant risk factor for primary open angle glaucoma.
Dr. Z.-L. Bai, Department of Image, The Second Hospital of Xi'an Jiaotong University, Xi'an 710004 Shaanxi Province, China
Classification:
9.4.15 Glaucoma in relation to systemic disease (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)
