Module B1 - Slide 7


This photo illustrates severely restricted peripheral visual fields; this is sometimes called tunnel vision. This is most often caused by a disease called retinitis pigmentosa, or glaucoma. What is still visible to this person?

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Answers: A small section of crosswalk lines, a portion of a car, the pedestrian signal

A person probably can see the pedestrian signal as long as they’re focused on it. The curb, curb ramp, sidewalk, and cars are not visible, at least not while the person is looking at the pedestrian signal. Individuals have to scan to see objects, but can only see some parts of the intersection at a time. Probably someone with this type of vision uses a long white cane or dog guide.