Table 12.
Percentage of Subjects Who Remained Visually Impaired Over 6 Years∗
| Vision Status | Age (Year) | Subjects With Baseline VI∗ |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Overall |
Malay |
Indian |
Chinese |
||||||
| n | Remained Visually Impaired Over 6 Years (n [%]) | n | Remained Visually Impaired Over 6 Years (n [%]) | n | Remained Visually Impaired Over 6 Years (n [%]) | n | Remained Visually Impaired Over 6 Years (n [%]) | ||
| Presenting VI∗ at baseline | 40–49 | 155 | 42 (27.1) | 50 | 17 (34.0) | 53 | 15 (28.3) | 52 | 10 (19.2) |
| 50–59 | 307 | 108 (35.2) | 96 | 43 (44.8) | 104 | 38 (36.5) | 107 | 27 (25.2) | |
| 60–69 | 394 | 140 (35.5) | 109 | 53 (48.6) | 138 | 44 (31.9) | 147 | 43 (29.3) | |
| 70+ | 352 | 195 (55.4) | 118 | 84 (71.2) | 68 | 38 (55.9) | 166 | 73 (44.0) | |
| Total | 1208 | 485 (40.1) | 373 | 197 (52.8) | 363 | 135 (37.2) | 472 | 153 (32.4) | |
| Best-corrected VI∗ at baseline | 40–49 | 11 | 5 (45.5) | 6 | 4 (66.7) | 3 | 0 (0.0) | 2 | 1 (50.0) |
| 50–59 | 23 | 9 (39.1) | 13 | 7 (53.8) | 5 | 0 (0.0) | 5 | 2 (40.0) | |
| 60–69 | 61 | 27 (44.3) | 19 | 9 (47.4) | 24 | 9 (37.5) | 18 | 9 (50.0) | |
| 70+ | 127 | 68 (53.5) | 48 | 30 (62.5) | 25 | 16 (64.0) | 54 | 22 (40.7) | |
| Total | 222 | 109 (49.1) | 86 | 50 (58.1) | 57 | 25 (43.9) | 79 | 34 (43.0) | |
VI = visual impairment.
∗
Based on United States definition—visual impairment was defined as visual acuity < 20/40, based on better-seeing eye. Include subjects with low vision or blindness at baseline who remained status quo over 6 years and those with low vision at baseline who deteriorated to blindness over 6 years.