Table 1. Prevalence of Mild Vision Impairment (MVI), Moderate to Severe Vision Impairment (MSVI), and Blindness Stratified by Age and Sex.

Age group, y	No.	MVIa		MSVIb		Blindnessc
		No. (%)d	95% CI	No. (%)d	95% CI	No. (%)d	95% CI
All
85-86	401	43 (10.7)	7.7-13.8	157 (39.2)	34.4-44.0	18 (4.5)	2.5-6.5
87-88	303	33 (10.9)	7.4-14.4	151 (49.8)	44.2-55.5	13 (4.3)	2.0-6.6
89-90	225	22 (9.8)	5.9-13.7	113 (50.2)	43.6-56.8	16 (7.1)	3.7-10.5
91-92	134	8 (6.0)	1.9-10.0	87 (64.9)	56.7-73.1	9 (6.7)	2.4-11.0
≥93	86	8 (9.3)	3.0-15.6	54 (62.8)	52.4-73.2	12 (14.0)	6.5-21.4
Men
85-86	110	7 (6.4)	1.7-11.0	42 (38.2)	29.0-47.4	3 (2.7)	0-5.8
87-88	79	11 (13.9)	6.1-21.7	35 (44.3)	33.1-55.5	1 (1.3)	0-3.8
89-90	61	6 (9.8)	2.2-17.5	34 (55.7)	42.9-68.6	5 (8.2)	1.1-15.3
91-92	27	2 (7.4)	0-18.0	16 (59.3)	39.5-79.1	2 (7.4)	0-18.0
≥93	26	0	NA	18 (69.2)	50.2-88.2	4 (15.4)	0.5-30.3
Women
85-86	291	36 (12.4)	8.6-16.2	115 (39.5)	33.9-45.2	15 (5.2)	2.6-7.7
87-88	224	22 (9.8)	5.9-13.8	116 (51.8)	45.2-58.4	12 (5.4)	2.4-8.3
89-90	164	16 (9.8)	5.2-14.4	79 (48.2)	40.4-55.9	11 (6.7)	2.8-10.6
91-92	107	6 (5.6)	1.2-10.0	71 (66.4)	57.3-75.5	7 (6.5)	1.8-11.3
≥93	60	8 (13.3)	4.5-22.2	36 (60.0)	47.2-72.8	8 (13.3)	4.5-22.2

Abbreviation: NA, not applicable.

^aMild vision impairment was defined as best-corrected visual acuity worse than 6/12 to 6/18 in the better eye or both eyes (measured by modified Early Treatment of Diabetic Retinopathy Study charts).

^bModerate to severe vision impairment was defined as best-corrected visual acuity worse than 6/18 but equal to or better than 3/60 in the better eye or both eyes (measured by modified Early Treatment of Diabetic Retinopathy Study charts).

^cBlindness was defined as best-corrected visual acuity worse than 3/60 in the better eye or both eyes (measured by modified Early Treatment of Diabetic Retinopathy Study charts).

^dPercentages calculated across rows.