| in order | 7 | degree |
| to treat nearsightedness | 4 | purpose |
| along the horizontal meridian | 3 | location |
| cornea → be → flatter | 31 |
| cornea → be made → flatter | 8 |
| cornea → become → flatter | 6 |
| cornea → get → flatter | 3 |
| negative | neutral | positive |
| 0.402 | 0.535 | 0.063 |
| Raw frequency | 48 |
| Normalized frequency | 0.650 |
| Modifier score | 0.600 |
| Perplexity | 134.227 |