| Name | Info | Provider | Link |
|---|---|---|---|
| Refractive Errors | free resource | MedlinePlus Health Information | https://medlineplus.gov/refractiveerrors.html |
| Full text from | free resource | CORE | https://core.ac.uk/reader/8796155?utm_source=linkout |
| subscription/membership/fee required | Silverchair Information Systems | https://iovs.arvojournals.org/article.aspx?doi=10.1167/iovs.01-0131 |