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An unusual application of prisms for field enhancement
1Western New York Center for the Visually Impaired, Buffalo, NY 14223.
Journal of the American Optometric Association
|April 1, 1990
Abstract:
This case report describes an unusual procedure to alleviate the problem of walking for a patient who has a modified "doughnut" field or ring scotoma. The technique uses prisms for field enhancement to increase the peripheral field awareness for the purpose of mobility. The unconventional placement of the prisms on the carrier lens contributes to the unusual nature of this case.