Font sizes used in Snellen chart when viewed at 20 feet and

Font size recommendations

Subjective colour preference

James MORRISON, Professor Emeritus, B.Sc.Mechanical Engineering, Ph.D. Bioengineering, Simon Fraser University, Burnaby, Biomedical Physiology and Kinesiology

James MORRISON, Professor Emeritus, B.Sc.Mechanical Engineering, Ph.D. Bioengineering, Simon Fraser University, Burnaby, Biomedical Physiology and Kinesiology

Subjective colour preference

Font sizes used in Snellen chart when viewed at 20 feet and adapted

Font sizes used in Snellen chart when viewed at 20 feet and adapted

Joanna ZANDER, User Experience, Emily Carr University of Art + Design, Vancouver, ECUAD, Department of Design

Subjective colour preference