Hemianopic Fresnel Prisms
作者:
J.,
SMITH IRA,
WEINER ALBERT,
期刊:
Journal of Clinical Neuro-Ophthalmology
(OVID Available online 1982)
卷期:
Volume 2,
issue 1
页码: 19-22
ISSN:0272-846X
年代: 1982
出版商: OVID
数据来源: OVID
摘要:
Patients with homonymous hemianopic visual field defects have been treated by using a 30-diopter Fresnel plastic paste-on prism on their glasses. A patient with a left homonymous hemianopia, for instance, can have a 30-diopter base left (i.e., base out) Fresnel prism placed on the temporal half of the left spectacle lens. The prism need be only on one lens. A small 1− to 1.5-mm portion can be cut out of the center to prevent diplopia. This device is widely available and easier to obtain than a hemianopic mirror on the frames. Use of this device is illustrated in the report.
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