Both reduced visual acuity and low contrast sensitivity, can make it hard to recognise faces, especially in low lighting, when contrast is less.
The examples below show how much information is lost with only a small reduction in either visual acuity or contrast sensitivity. (This is not the same as a condition called prosopagnosia / face blindness, which we will explain later).
Cerebral Visual Impairments can cause challenges with facial recognition for multiple reasons. These will be discussed at length throughout the following sections.
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