Mean (SD) refractive error and cylinder axis range
| All groups | Anisometropia | Strabismus | Mixed | ||
|---|---|---|---|---|---|
| Amblyopic eye | Mean sphere | 4.0 (2.1) | 3.8 (1.9) | 3.65 (1.50) | 4.50 (2.4) |
| Range sphere | +9.00 to −4.00 | +7.50 to −4.00 | +6.50 to +0.75 | +9.00 to −4.00 | |
| Mean cylinder | −0.91 (1.0) | −0.98 (1.2) | −0.90 (0.98) | −1.00 (0.77) | |
| Range cylinder | 0 to −3.50 | 0 to −3.50 | 0 to −3.50 | 0 to −2.50 | |
| Fellow eye | Mean sphere | 2.7 (1.8) | 1.99 (1.46) | 3.33 (1.51) | 2.85 (2.04) |
| Range sphere | +6.50 to 0 | +6.50 to 0 | +6.00 to +0.75 | +6.50 to 0 | |
| Mean cylinder | −0.45 (0.62) | −0.30 (0.33) | −0.64 (0.99) | −0.45 (0.62) | |
| Range cylinder | 0 to −3.00 | 0 to −3.00 | 0 to −3.00 | 0 to −1.50 |