Apparatus for Assessing Vision after Stroke

Abstract

This article describes the development of an electronically controlled test apparatus used to detect visual deficits following neurological damage. A group of occupational therapists and an electronics engineer expanded ideas given at a sensory integration course to produce the hardware as well as the test format and protocol to produce a useful test. The hardware includes a display board containing an array of lights and a control box with corresponding switches as well as an automatic control switch to permit both manual and programed testing. The test identifies deficiencies in the areas of visual neglect, hemianopia, visual memory, extinction, and variation in performance as a result of change in length of stimulus. Information gained by using this test provides valuable assistance to the occupational therapist and to other team members in setting realistic expectations and treatment goals. More information regarding production of this test is available on request.