Vision Deficiencies

As we learned in the Human Factors Model Module, humans do not have identical physical and cognitive capabilities. This is especially true with vision. Variability in vision is a result of genetics, accidents, injury, illness, and age. This variability within the user population must be taken into account in designing visual displays. For this course, we will consider the effects of visual acuity, color-blindness, and ageing. These are further divided into the following sub-categories: