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

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

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

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

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

Subjective colour preference

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

Font size recommendations

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

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