| Name | Info | Provider | Link |
|---|---|---|---|
| Vision Impairment and Blindness | free resource | MedlinePlus Health Information | https://medlineplus.gov/visionimpairmentandblindness.html |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/brain/article-lookup/doi/10.1093/brain/120.7.1163 |