University of Nevada, Reno Nevada Dual Sensory Impairment Project
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Usher Syndrome
Dark Adaptation

Procedure:
Have the student sit in a darkened room for about six minutes, which typically is enough time for the eyes to adjust to the darkness. Then ask him or her to walk around the room. Observe if he or she bumps or stumbles into objects.

Results:
_____ Able to ambulate in the dark without problems.
_____ Has difficulty ambulating in the dark.

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Please direct questions to: mad@unr.edu
URL of this document: http://www.unr.edu/educ/ndsip/