Table 8.
Level of Improvement of Monocular Best Corrected Visual Acuity over a 4 year Period Stratified by Age at Baseline in Participants of the Los Angeles Latino Eye Study
| Improvement in either eye* | Improvement in the worse-seeing eye† | |||||||
|---|---|---|---|---|---|---|---|---|
| Age at baseline (years) | N | n | % (CI) | P | N | n | % (CI) | P |
| ≥ 15 letters improvement | ||||||||
| 40–49 | 687 | 4 | 0.6 (0.0, 1.2) | <0.001 | 687 | 4 | 0.6 (0.0, 1.2) | <0.001 |
| 50–59 | 711 | 12 | 1.7 (0.7, 2.6) | 711 | 11 | 1.5 (0.6, 2.5) | ||
| 60–69 | 596 | 25 | 4.2 (2.6, 5.8) | 596 | 24 | 4.0 (2.4, 5.6) | ||
| 70–79 | 333 | 23 | 6.9 (4.2, 9.6) | 333 | 22 | 6.6 (3.9, 9.3) | ||
| 80+ | 77 | 6 | 7.8 (1.8, 13.8) | 77 | 5 | 6.5 (1.0, 12.0) | ||
| Total | 2404 | 70 | 2.9 (2.2, 3.6) | 2404 | 66 | 2.7 (2.1, 3.4) | ||
| ≥ 10 letters improvement | ||||||||
| 40–49 | 1644 | 29 | 1.8 (1.1, 2.4) | <0.001 | 1644 | 21 | 1.3 (0.7, 1.8) | <0.001 |
| 50–59 | 1405 | 26 | 1.9 (1.1, 2.6) | 1405 | 24 | 1.7 (1.0, 2.4) | ||
| 60–69 | 919 | 45 | 4.9 (3.5, 6.3) | 919 | 42 | 4.6 (3.2, 5.9) | ||
| 70–79 | 401 | 35 | 8.7 (6.0, 11.5) | 401 | 30 | 7.5 (4.9, 10.1) | ||
| 80+ | 83 | 11 | 13.3 (6.0, 20.5) | 83 | 11 | 13.3 (6.0, 20.5) | ||
| Total | 4452 | 146 | 3.3 (2.8, 3.8) | 4452 | 128 | 2.9 (2.4, 3.4) | ||
| ≥ 5 letters improvement | ||||||||
| 40–49 | 1752 | 198 | 17.0 (15.2, 18.8) | 0.618 | 1752 | 192 | 11.0 (9.5, 12.4) | 0.002 |
| 50–59 | 1444 | 231 | 16.0 (14.1, 17.9) | 1444 | 158 | 10.9 (9.3, 12.6) | ||
| 60–69 | 933 | 142 | 15.2 (12.9, 17.5) | 933 | 104 | 11.1 (9.1, 13.2) | ||
| 70–79 | 402 | 77 | 19.2 (15.3, 23.0) | 402 | 66 | 16.4 (12.8, 20.0) | ||
| 80+ | 83 | 18 | 21.7 (12.8, 30.6) | 83 | 18 | 21.7 (12.8. 30.6) | ||
| Total | 4614 | 766 | 16.6 (15.5, 17.7) | 4614 | 538 | 11.7 (10.7, 12.6) | ||
N= number at risk at baseline; n= incident cases; % (CI)= prevalence and 95 percent confidence interval; P = Test of trend.
Criterion for Improvement in either eye (one eye only): Persons capable of improving from Baseline by 5 or more, 10 or more, or 15 or more letters read correctly and at follow-up had an increase of 5 or more, 10 or more, or 15 or more letters read correctly in the better-seeing eye.
Criterion for Improvement in the worse-seeing eye: Persons capable of improving from Baseline by 5 or more, 10 or more, or 15 or more letters read correctly and at follow-up had an increase of 5 or more, 10 or more, or 15 or more letters read correctly in the worse-seeing eye.