The prevalence of primary angle closure glaucoma and open angle glaucoma in Mamre, western Cape, South Africa

Details

Serval ID
serval:BIB_9C8D3F9DC1A0
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The prevalence of primary angle closure glaucoma and open angle glaucoma in Mamre, western Cape, South Africa
Journal
Archives of Ophthalmology
Author(s)
Salmon  J. F., Mermoud  A., Ivey  A., Swanevelder  S. A., Hoffman  M.
ISSN
0003-9950 (Print)
Publication state
Published
Issued date
09/1993
Volume
111
Number
9
Pages
1263-9
Notes
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Sep
Abstract
OBJECTIVE: To determine the prevalence of primary angle closure glaucoma in the so-called Cape people of mixed ethnic background. DESIGN: A population-based prevalence study. SETTING: Mamre, a village near Cape Town, South Africa. PARTICIPANTS: Individuals aged 40 years or older. Historically, their ancestors were Southeast Asians and indigenous Africans and, to a lesser extent, Europeans. Of a total of 1194 people, 987 (82.7%) were examined. MAIN OUTCOME MEASURE: Primary angle closure glaucoma was diagnosed in individuals with previous acute or intermittent symptoms of angle closure and in individuals with an "occludable" angle and an intraocular pressure of greater than 21 mm Hg or a glaucomatous visual field. MAIN RESULTS: An age-related trend toward hypermetropia was found, which was greatest in women older than age 50 years. Gonioscopy identified Shaffer grade 1 angles in 89 (9%) of 987 subjects. The prevalence of primary angle closure glaucoma was 2.3% (23 subjects) and increased with age in both sexes. Women were affected more than four times as often as men and the sex difference persisted across all age groups. In comparison, the prevalence of primary open angle glaucoma was 1.5% (15 subjects). Primary glaucoma (angle closure plus open angle) was the leading cause of bilateral blindness in the community, with a prevalence rate of 0.5% (five subjects). CONCLUSIONS: This study identified primary angle closure glaucoma as a significant public health problem in the Western Cape Province. Because of the ethnic back-ground of the people studied, these findings may also apply to the populations of Southeast Asia.
Keywords
Adult Aged Aged, 80 and over Female Glaucoma, Angle-Closure/*epidemiology Glaucoma, Open-Angle/*epidemiology Gonioscopy Humans Intraocular Pressure Male Middle Aged Prevalence Sex Factors South Africa/epidemiology Visual Fields
Pubmed
Web of science
Create date
28/01/2008 12:49
Last modification date
20/08/2019 15:03
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