King-Devick Variable Color Contrast Sensitivity Chart for Age-Related Macular Degeneration
King-Devick Variable Color Contrast Sensitivity Chart for Age-Related Macular Degeneration
King-Devick Variable Color Contrast Sensitivity Chart for Age-Related Macular Degeneration (iOS)
Usage
How to Self Administer a Color Contrast Test
How to Sign Up for the King-Devick Variable Color Contrast Sensitivity Chart for AMD
How to Update your Visual Acuity
Troubleshooting
How to Reset a Password
Troubleshooting Sign-in
Force Closing Apps (iOS)
Troubleshooting Network Issues in iOS
How to Uninstall and Redownload an App (iOS)
User Guides
Product Specifications
| Specifications | iPad |
|---|---|
| Screen Size | 9.7"+ |
| Aspect Ratio | 4:3 or 4.3:3 |
| Resolution | 1024 x 768+ |
| Operating System | iOS 9+** |
| App Location | Apple App Store |