Table 2.

Distribution of subjects according to presenting and corrected visual acuities in the better eye with age standardised prevalences based on presenting VA (n=11624)

		Presenting vision	Corrected vision
		No/%	No/%
Visual acuity	Snellen equivalent (logMAR)	(95% CI)	(95% CI)	Age standardised prevalence (95% CI)
Normal	≥6/12	9854/84.77	10759/92.56	83.57
	(<0.30)	(83.80 to 85.75)	(91.88 to 93.23)	(82.89 to 84.25)
Near normal	<6/12 to ≥6/18	704/6.06	329/2.83	6.46
	(≥0.30 to <0.50)	(5.52 to 6.60)	(2.47 to 3.20)	(6.02 to 6.91)
Moderate visual impairment	<6/18 to ≥6/60	849/7.30	385/3.31	7.92
	(≥0.50 to <1.00)	(6.72 to 7.89)	(2.89 to 3.74)	(7.43 to 8.41)
Severe visual impairment	<6/60 to ≥3/60	55/0.47	26/0.22	0.52
	(≥1.00 to <1.30)	(0.33 to 0.61)	(0.14 to 0.31)	(0.39 to 0.65)
Blind	<3/60	162/1.39	125/1.08	1.53
	(≥1.30)	(1.17 to 1.62)	(0.86 to 1.29)	(1.31 to 1.75)
Total	–	11624/100.0	11624/100.0	11624/100.0