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Practice Perspectives — JVIB Extract

Since Practice Perspectives do not have abstracts, we have provided an extract of the beginning of the text.

Extract: Several adult patients with low vision have come to the Advanced Low Vision Clinic at the Corporal Michael Crescenz Department of Veterans Affairs Medical Center (CMCVAMC), in Philadelphia, Pennsylvania, and to the Bucks County Association for the Blind and Visually Impaired, in Newton, Pennsylvania, with a diagnosis of hemianopic loss secondary to a stroke in the visual cortex; brain tumors; or traumatic brain injury. Prism placement for peripheral field loss allows patients to have enhanced peripheral awareness and an increased peripheral field depending on the type of prism used (Brillant, 1999). To determine prism placement, a low vision optometrist evaluates the patient. The evaluation consists of trials of different types of prism systems, including Fresnel, Gottlieb, Onufryk, and Eli Peli. When a preference for a particular prism system is shown, it is temporarily placed. The optometrist confers with the orientation and mobility (O&M) specialist to discuss patient goals and a plan of care. The O&M specialist performs an evaluation and provides visual scanning training as well as instruction in the functional use of prisms. This report describes the process used in these centers for assessing and placing the prism for these individuals.


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