What is CVI?


Facial Recognition (Occipital Affected)

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).

Image with normal acuityImage with normal acuity

Image is seen with reduced visual acuityImage is seen with reduced visual acuity

Image as seen with reduced contrast sensitivityImage as seen with reduced contrast sensitivity

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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At CVI Scotland we are devoted to helping people understand cerebral visual impairments, and together working towards developing the understanding of this complex condition.