| in shape | 40 | other |
| increasingly | 10 | degree |
| in regular soft contact lens designs | 9 | other |
| cornea → be → irregular | 48 |
| cornea → become → irregular | 43 |
| cornea → become → more irregular | 12 |
| cornea → be → abnormal | 6 |
| cornea → thin → irregular | 3 |
| cornea → develop → irregularity | 3 |
| negative | neutral | positive |
| 0.683 | 0.287 | 0.030 |
| Raw frequency | 115 |
| Normalized frequency | 0.855 |
| Modifier score | 0.467 |
| Perplexity | 285.635 |