Skip to main content
. 2002 Sep;86(9):1041–1045. doi: 10.1136/bjo.86.9.1041

Table 1.

Prevalence of undercorrected refractive error in study sample

Number of lines improved (presenting visual acuity)* Number of subjects with undercorrected refractive error % of total (n=3654)
≥1 line (<50 letters) 889 24.3
≥2 lines (<45 letters) 371 10.2
≥3 lines (<40 letters) 167 4.6
≥4 lines (<35 letters) 71 1.9

*For each level of undercorrected refractive error, the level of presenting visual acuity was selected to permit improvement to a maximum of 6/6 Snellen equivalent.