Table 1.

Frequency distribution of observed vision status by age group and sex in persons with trichiasis (n = 319)

Age group (years)	Vision status* (n)
	Males				Females				Total
	Normal vision	Low vision	Blindness	Total	Normal vision	Low vision	Blindness	Total	Normal vision	Low vision	Blindness	Total
0–4**	0	0	0	0	3	0	0	3	3	0	0	3
5–9	8	0	0	8	13	0	0	13	21	0	0	21
10–14	8	1	0	9	9	0	0	9	17	1	0	18
15–19	12	1	0	13	8	3	0	11	20	4	0	24
20–24	10	5	1	16	5	2	0	7	15	7	1	23
25–29	1	2	1	4	12	4	0	16	13	6	1	20
30–34	4	3	0	7	16	9	1	26	20	12	1	33
35–39	6	4	0	10	11	2	2	15	17	6	2	25
40–44	1	0	0	1	9	6	2	17	10	6	2	18
45–49	10	3	0	13	12	6	6	24	22	9	6	37
50–54	4	8	0	12	7	17	3	27	11	25	3	39
55–59	0	8	2	10	1	3	1	5	1	11	3	15
60–64	0	2	5	7	3	9	2	14	3	11	7	21
65–69	0	2	1	3	0	4	2	6	0	6	3	9
70–74	0	1	2	3	0	4	1	5	0	5	3	8
75+	0	1	0	1	0	1	3	4	0	2	3	5
Total: n	64	41	12	117	109	70	23	202	173	111	35	319
Total: %	54.7	35.0	10.3		54.0	34.7	11.4		54.2	34.8	11.0
95% CI	45.2–63.9	26.5–44.4	5.4–17.2		46.8–61.0	28.1–41.7	7.3–16.6		48.6–59.8	29.6–40.3	7.8–14.9

*Vision status: Normal vision = presenting visual acuity of ≥ 6/18 in the better eye; Low vision = presenting visual acuity of < 6/18 to ≤ 3/60 in the better eye; Blindness = presenting visual acuity of < 3/60 in the better eye.

**Three children aged 0–4 years assumed to have normal vision.