| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ingenta plc | https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=28&issue=4&spage=313&aulast=de Oliveira | |
| Optic Nerve Disorders | free resource | MedlinePlus Health Information | https://medlineplus.gov/opticnervedisorders.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30531188.ui | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1097/IJG.0000000000001150 |