Use of the King-Devick Variable Color Contrast Sensitivity Chart to differentiate stages of age-related macular degeneration
Shaun Ittiara, Anya S Hariprasad, Leonard V Messner, David J Tresley, Danielle Leong, Sidney A Schechet
BMJ Open Ophthalmology May 2020, 5 (1) e000451; DOI: 10.1136/bmjophth-2020-000451