| for good eye health | 20 | purpose |
| for healthy eyes | 13 | purpose |
| for comfort | 9 | purpose |
| tear → be → essential | 48 |
| tear → be → important | 24 |
| tear → be → vital | 11 |
| tear → be → critical | 4 |
| tear → be → crucial | 4 |
| negative | neutral | positive |
| 0.088 | 0.446 | 0.466 |
| Raw frequency | 91 |
| Normalized frequency | 0.822 |
| Modifier score | 0.500 |
| Perplexity | 319.688 |