Table 2.
Photostress recovery time and glare disability threshold (efficacy analysis data set).
| BLF Glasses | Non-BLF Glasses | |
|---|---|---|
| Photostress recovery time, seconds | ||
| N | 145 | 144 |
| Mean ± SD | 5.66 ± 6.20 | 6.94 ± 7.16 |
| Range | 1.0–29.3 | 1.0–36.0 |
| Difference (P value*; 95% CI) | −1.37 (0.00010; −2.08 to −0.66) | |
| Glare disability threshold, log units | ||
| N | 146 | 147 |
| Mean ± SD | 1.37 ± 0.88 | 1.26 ± 0.92 |
| Range | −0.6 to 3.1 | −0.6 to 4.0 |
| Difference (P value*; 95% CI) | 0.12 (0.00014; 0.06–0.18) | |
BLF: blue-light filtering.
*1-sided P value from paired t-test.