Rapid assessment of avoidable blindness in Negros Island and Antique District, Philippines


Eusebio, C; Kuper, H; Polack, SR; Enconada, J; Tongson, N; Dionio, D; Dumdum, A; Limburg, H; Foster, A; (2007) Rapid assessment of avoidable blindness in Negros Island and Antique District, Philippines. The British journal of ophthalmology. ISSN 0007-1161 DOI: https://doi.org/10.1136/bjo.2007.119123

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Abstract

OBJECTIVES: To conduct Rapid Assessments of Avoidable Blindness to estimate the magnitude and causes of blindness in people aged >=50 years in Negros Island and Antique district, Philippines. METHODS: Clusters of 50 people aged >=50 years were sampled with probability proportionate to size. Households within clusters were selected through compact segment sampling. Visual acuity (VA) was measured with a tumbling E chart. Ophthalmologists examined people with VA=6/60). Most of the cases of blindness (67% in Negros, 82% in Antique) and visual impairment (94% in Negros, 95% in Antique) were avoidable (i.e. operated and unoperated cataract, refractive error and corneal scar). In Negros 23% of eyes had a poor outcome after cataract surgery, and 13% in Antique. CONCLUSIONS: The prevalence of blindness in two areas in the Philippines was relatively low. Since most cases were avoidable, further reductions are possible.

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
Research Centre: The International Centre for Evidence in Disability
International Centre for Eye Health
Centre for Global Non-Communicable Diseases (NCDs)
PubMed ID: 17567662
Web of Science ID: 251032200009
URI: http://researchonline.lshtm.ac.uk/id/eprint/9450

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