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Prevalence and causes of visual impairment in rural myanmar: the Meiktila Eye Study.
Ophthalmology 2007; 114(12):2302-8O

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 OUTCOME MEASURES

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.

Authors+Show Affiliations

South Australian Institute of Ophthalmology, Adelaide, Australia. robert.casson@adelaide.edu.au

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17448538

Citation

Casson, Robert J., et al. "Prevalence and Causes of Visual Impairment in Rural Myanmar: the Meiktila Eye Study." Ophthalmology, vol. 114, no. 12, 2007, pp. 2302-8.
Casson RJ, Newland HS, Muecke J, et al. Prevalence and causes of visual impairment in rural myanmar: the Meiktila Eye Study. Ophthalmology. 2007;114(12):2302-8.
Casson, R. J., Newland, H. S., Muecke, J., McGovern, S., Durkin, S., Sullivan, T., ... Aung, T. (2007). Prevalence and causes of visual impairment in rural myanmar: the Meiktila Eye Study. Ophthalmology, 114(12), pp. 2302-8.
Casson RJ, et al. Prevalence and Causes of Visual Impairment in Rural Myanmar: the Meiktila Eye Study. Ophthalmology. 2007;114(12):2302-8. PubMed PMID: 17448538.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence and causes of visual impairment in rural myanmar: the Meiktila Eye Study. AU - Casson,Robert J, AU - Newland,H S, AU - Muecke,J, AU - McGovern,S, AU - Durkin,S, AU - Sullivan,T, AU - Oo,T Z, AU - Aung,T H, AU - Shein,W K, AU - Selva,D, AU - Aung,T, Y1 - 2007/04/19/ PY - 2006/07/07/received PY - 2007/02/05/revised PY - 2007/02/05/accepted PY - 2007/4/24/pubmed PY - 2007/12/19/medline PY - 2007/4/24/entrez SP - 2302 EP - 8 JF - Ophthalmology JO - Ophthalmology VL - 114 IS - 12 N2 - 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 OUTCOME MEASURES: 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. SN - 1549-4713 UR - https://www.unboundmedicine.com/medline/citation/17448538/Prevalence_and_causes_of_visual_impairment_in_rural_myanmar:_the_Meiktila_Eye_Study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0161-6420(07)00128-5 DB - PRIME DP - Unbound Medicine ER -