Prevalence of refractive error in Bangladeshi adults: results of the National Blindness and Low Vision Survey of Bangladesh.

Purpose: To determine the prevalence of refractive errors and to investigate factors associated with refractive error in adults 30 years of age and older in Bangladesh.

Design: Cross-sectional study.

Participants: A nationally representative sample of 12 782 adults 30 years of age and older.

Correction of refractive error in the adult population of Bangladesh: meeting the unmet need.

Purpose: To assess the extent of uncorrected refractive error and associated factors in Bangladesh and to suggest ways in which this need can be met.

Methods: A nationally representative sample of 12,782 adults (>/= 30 years of age) was selected. Of them, 11,624 subjects underwent a demographic interview, visual acuity (logarithm of the minimum angle of resolution [logMAR]) measurement, automated refraction, and optic disc examination.