Estimated prevalence of blindness (VA<3/60), severe visual impairment (VA<6/60–3/60) and visual impairment (VA<6/80–6/60) in Cape Town by person and eyes with available correction.

CI, Confidence Interval; VA, Visual Acuity;NB: data for persons refers to VA in the better eye.CI：置信区间（Confidence Interval）；VA：视力（Visual Acuity）；请注意：个体数据指的是较佳眼的视力。