| unevenly | 2 | degree |
| in order to achieve emmetropia | 2 | purpose |
| cornea → be → steepened | 6 |
| cornea → be steepened to → the point | 3 |
| negative | neutral | positive |
| 0.368 | 0.551 | 0.081 |
| Raw frequency | 9 |
| Normalized frequency | 0.258 |
| Modifier score | 0.500 |
| Perplexity | 337.555 |