Association of the absolute difference in visual acuity, refraction, and keratometry between eyes with the FDACL of the worse eye (all p<0.0001)
| Clinical measure | Sample Size | Mean (SD) difference between eyes | Correlation with FDACL (worse eye) |
|---|---|---|---|
| High contrast entrance visual acuity (letters correct) | 1035 | 11.38 (13.77) | 0.25 |
| Low contrast entrance visual acuity (letters correct) | 1032 | 12.54 (13.62) | 0.25 |
| High contrast best corrected visual acuity (letters correct) | 1028 | 7.58 (8.00) | 0.28 |
| Low contrast best corrected visual acuity (letters correct) | 1017 | 9.38 (9.68) | 0.28 |
| Manifest refraction–spherical equivalent (D) | 1034 | 3.07 (3.73) | 0.41 |
| Manifest refraction–cylinder (D) | 1034 | 1.54 (1.41) | 0.13 |
| Flat keratometry (D) | 1030 | 3.39 (4.13) | 0.61 |
| Steep keratometry (D) | 1028 | 4.19 (4.17) | 0.54 |
| Corneal toricity (D) | 1027 | 2.09 (2.12) | 0.23 |