Table 1.
Evolution of topographic and refractive data of both eyes though the years.
| Initial | 6 months | 1 year | 2.5 years | 4 years | 6 years | ||
|---|---|---|---|---|---|---|---|
| Refraction | OD | −2.00x80 | −1.00x80 | −1.00x70 | +0.25–1.00x70 | +2.25–1.50x60 | +5.00–2.00x55 |
| OS | +3.50–5.25x107 | +3.00–3.500x85 | +1.50–2.00x30 | +2.50–2.50x30 | +4.25–2.50x60 | +6.00–1.50x80 | |
| CDVA | OD | 20/20 | 20/20 | 20/30 | 20/40 | 20/40 | 20/40 |
| OS | 20/30 | 20/30 | 20/40 | 20/60 | 20/60 | 20/60 | |
| Flat K | OD | 42.6@76 | 42.5@73 | 41.5@70 | 40.8@56 | 40.5@36 | |
| OS | 40.8@104 | 39.9@77 | 37.7@70 | 37.2@61 | 38.5@66 | ||
| Steep K | OD | 44.5@166 | 44.1@163 | 43.6@160 | 43.0@146 | 42.5@126 | |
| OS | 46.6@14 | 44.8@167 | 43.1@160 | 42.9@151 | 43.5@156 | ||
| Topographic Astigmatism | OD | 1.9 | 1.6 | 2.1 | 2.2 | 2.0 | |
| OS | 5.8 | 4.9 | 5.4 | 5.5 | 5.0 | ||
| K Maximum | OD | 44.3 | 44.00 | 44.73 | 45.98 | 46.50 | |
| OS | 47.4 | 45.90 | 44.83 | 46.12 | 49.69 | ||
| I-S Asymmetry | OD | 0.6 | −2.0 | −5.4 | −7.6 | −10.0 | |
| OS | 5.9 | 4.1 | −4.6 | −8.1 | −13.7 |
CDVA – Corrected Distance Visual Acuity; I-S Asymmetry: Inferior-Superior Asymmetry – Difference between the keratometry of the superior and inferior from 1.5mm from the center.