| Typicality: | 0.380 |
| Saliency: | 0.305 |
| to treat astigmatism | 4 | purpose |
| surgically | 2 | manner |
| cornea → treat → farsightedness | 4 |
| cornea → correct → nearsightedness | 4 |
| cornea → treat → nearsightedness | 3 |
| negative | neutral | positive |
| 0.214 | 0.711 | 0.075 |
| Raw frequency | 11 |
| Normalized frequency | 0.305 |
| Modifier score | 0.500 |
| Perplexity | 44.119 |