The 95% confidence limits for interocular differences, for Glasgow acuity cards (GAC) and Sheridan–Gardiner tests (SGT) in the visually normal population
| Scale increment (log units) | 95% Confidence limit (log units) | Clinically significant difference (log units) | |
|---|---|---|---|
| GAC | 0.025 | 0.08 | 0.10 |
| SGT | 0.1 | 0.11 | 0.20 |