Community-Based Trial of a Peripheral Prism Visual Field Expansion Device for Hemianopia
نویسندگان
چکیده
منابع مشابه
Community-based trial of a peripheral prism visual field expansion device for hemianopia.
OBJECTIVE To determine the functional utility for general mobility of peripheral prism glasses, a novel visual field expansion device for hemianopia, in a large-scale, community-based, multicenter study with long-term follow-up. METHODS Forty-three participants with homonymous hemianopia were fitted with temporary press-on Fresnel peripheral prism segments of 40 prism diopters. Follow-up ques...
متن کاملCLINICAL SCIENCES Community-Based Trial of a Peripheral Prism Visual Field Expansion Device for Hemianopia
Methods: Forty-three participants with homonymous hemianopia were fitted with temporary press-on Fresnel peripheral prism segments of 40 prism diopters. Follow-up questionnaires evaluating functional benefits for mobility were administered in the office at week 6. Participants who continued wearing the prisms were interviewed again by telephone after a median of 12 months. Primary outcome measu...
متن کاملField expansion for homonymous hemianopia by optically induced peripheral exotropia.
PURPOSE To describe a novel method for prism correction of hemianopia that provides field-of-view expansion in a convenient and functional format and to evaluate initial clinical application. METHOD To expand the upper quadrant of the field, a high power prism segment (30-40delta) is placed base-out across the upper part of the spectacle lens, on the side of the loss, at about the level of th...
متن کاملField Expansion for Homonymous Hemianopia
Visual field loss following a cortical lesion from stroke, brain surgery, or head trauma frequently manifests as homonymous hemianopia. Hemianopic field loss causes problems in mobility and navigation as well as reading. Patients frequently complain of bumping into obstacles on the side of the field loss and getting bruised on their arms and legs. The number of such accidents decreases with ada...
متن کاملClinical and laboratory evaluation of peripheral prism glasses for hemianopia.
PURPOSE Homonymous hemianopia (the loss of vision on the same side in each eye) impairs the ability to navigate and walk safely. We evaluated peripheral prism glasses as a low vision optical device for hemianopia in an extended wearing trial. METHODS Twenty-three patients with complete hemianopia (13 right) with neither visual neglect nor cognitive deficit enrolled in the 5-visit study. To ex...
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ژورنال
عنوان ژورنال: Archives of Ophthalmology
سال: 2008
ISSN: 0003-9950
DOI: 10.1001/archopht.126.5.657