Table 3

Visual impairment level in the screened population (N=173 973)

Visual acuity (VA)N%95% CI (%)
Normal
VA ≥6/18164 45694.594.4 to 94.6
Mild visual impairment
Between 6/18 and 6/6072634.24.1 to 4.3
Severe visual impairment
VA ≤6/6022541.31.2 to 1.3