Prevalence and causes of visual impairment in rural myanmar: the Meiktila Eye Study.
Ophthalmology
; 114(12): 2302-8, 2007 Dec.
Article
en En
| MEDLINE
| ID: mdl-17448538
ABSTRACT
OBJECTIVE:
To determine the prevalence and causes of visual impairment in the Meiktila district of central, rural Myanmar.DESIGN:
Population-based cross-sectional study.PARTICIPANTS:
Random, stratified, cluster sampling of the inhabitants 40 years of age and older from villages in the Meiktila district was performed; 2481 eligible participants were identified and 2076 participated in the study.METHODS:
The ophthalmic examination included presenting and pinhole Snellen visual acuity with an illiterate E chart, slit-lamp examination of the anterior segment, and dilated stereoscopic fundus examination. The principal cause of visual impairment was recorded. MAIN OUTCOMEMEASURES:
Visual impairment and blindness were defined by both presenting and corrected visual acuity according to World Health Organization criteria better eye < 6/18 and < 3/60, respectively.RESULTS:
Comprehensive examinations, including Snellen visual acuity, were performed on 2073 participants (83.6%) The prevalence estimate of presenting visual impairment was 40.4% (95% confidence interval [CI], 36.1-44.7) and of presenting blindness was 8.1% (95% CI, 6.5-9.9). After pinhole correction, the corresponding prevalences were 26.8% (95% CI, 23.5-30.1) and 5.3% (95% CI, 4.0-6.6). Cataract, uncorrected refractive error, and glaucoma were the most common causes of visual impairment.CONCLUSIONS:
Visual impairment and blindness remain major public health problems in rural Myanmar. Specific programs directed toward reducing the cataract burden need to be implemented.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Población Rural
/
Ceguera
/
Personas con Daño Visual
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
Ophthalmology
Año:
2007
Tipo del documento:
Article
País de afiliación:
Australia