Terms and Synonyms Searched:
| Terms | Search Results* | Entire Database** |
|---|---|---|
| Synonyms | ||
| preservative-free | 6 studies | 475 studies |
| Ocular | 6 studies | 37,542 studies |
| ophthalmic | 6 studies | 3,136 studies |
| Eye | 6 studies | 18,400 studies |
| Optic | 2 studies | 1,784 studies |
| Visual function | 1 studies | 789 studies |
| Vision | 1 studies | 5,626 studies |
| Eyeball structure | -- | 1 studies |
| functions visual | -- | 2 studies |
| Oculus | -- | 302 studies |
| Orbital region | -- | 11 studies |
| seeing | -- | 520 studies |
| sees | -- | 16,487 studies |
| Sight | -- | 515 studies |
| visual perception | -- | 178 studies |
| Glaucoma | 6 studies | 2,067 studies |
| Free | 6 studies | 2,476 studies |
| Empty | -- | 23 studies |
| -- | No studies found |
| * | Number of studies in the search results containing the term or synonym |
| ** | Number of studies in the entire database containing the term or synonym |