| for vision loss | 6 | purpose |
| from a variety of conditions | 6 | cause |
| due to disease | 6 | cause |
| cataract → can → cause | 26 |
| cataract → be → caused | 21 |
| cataract → be → the cause | 15 |
| cataract → be → main cause | 4 |
| cataract → be → cause | 4 |
| cataract → have → many causes | 4 |
| cataract → be → major cause | 3 |
| negative | neutral | positive |
| 0.614 | 0.357 | 0.029 |
| Raw frequency | 77 |
| Normalized frequency | 0.579 |
| Modifier score | 0.600 |
| Perplexity | 221.041 |