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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
Acquisition of Visual Perception in Blind Adults Using the BrainPort Artificial Vision Device
Amy C Nau1, Christine Pintar2, Aimee Arnoldussen3
1Amy C. Nau, OD, is Assistant Professor, University of Pittsburgh Medical Center Eye Center; McGowan Institute for Regenerative Medicine; and Fox Center for Vision Restoration, Korb & Associates, Boston MA; nauxac@gmail.com.
Objective:
We sought to determine whether intensive low vision rehabilitation would confer any functional improvement in a sample of blind adults using the BrainPort artificial vision device.
Method:
Eighteen adults ages 28-69 yr (n=10 men and n=8 women) who had light perception only or worse vision bilaterally spent up to 6 hr per day for 1 wk undergoing structured rehabilitation interventions. The functional outcomes of object identification and word recognition were tested at baseline and after rehabilitation training.
Results:
At baseline, participants were unable to complete the two functional assessments. After participation in the 1-wk training protocol, participants were able to use the BrainPort device to complete the two tasks with moderate success.
Conclusion:
Without training, participants were not able to perform above chance level using the BrainPort device. As artificial vision technologies become available, occupational therapy practitioners can play a key role in clients' success or failure in using these devices.
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