منابع مشابه
Peripheral prism glasses: effects of dominance, suppression, and background.
PURPOSE Unilateral peripheral prisms for homonymous hemianopia (HH) place different images on corresponding peripheral retinal points, a rivalrous situation in which local suppression of the prism image could occur and thus limit device functionality. Detection with peripheral prisms has primarily been evaluated using conventional perimetry, where binocular rivalry is unlikely to occur. We quan...
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...
متن کاملRandomized crossover clinical trial of real and sham peripheral prism glasses for hemianopia.
IMPORTANCE There is a major lack of randomized controlled clinical trials evaluating the efficacy of prismatic treatments for hemianopia. Evidence for their effectiveness is mostly based on anecdotal case reports and open-label evaluations without a control condition. OBJECTIVE To evaluate the efficacy of real relative to sham peripheral prism glasses for patients with complete homonymous hem...
متن کاملLimb-specific autonomic dysfunction in complex regional pain syndrome modulated by wearing prism glasses.
In unilateral upper-limb complex regional pain syndrome (CRPS), the temperature of the hands is modulated by where the arms are located relative to the body midline. We hypothesized that this effect depends on the perceived location of the hands, not on their actual location, nor on their anatomical alignment. In 2 separate cross-sectional randomized experiments, 10 (6 female) unilateral CRPS p...
متن کاملEffect of prism adaptation on left dichotic listening deficit in neglect patients: glasses to hear better?
Unilateral neglect is a disabling syndrome frequently observed following right hemisphere brain damage. Symptoms range from visuo-motor impairments through to deficient visuo-spatial imagery, but impairment can also affect the auditory modality. A short period of adaptation to a rightward prismatic shift of the visual field is known to improve a wide range of hemispatial neglect symptoms, inclu...
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ژورنال
عنوان ژورنال: Optometry and Vision Science
سال: 2012
ISSN: 1040-5488
DOI: 10.1097/opx.0b013e3182678d99