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quadrantanopia

   Also found in: Medical, Wikipedia 0.01 sec.
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Noun1.quadrantanopia - blindness in one fourth of the visual field
vision defect, visual defect, visual disorder, visual impairment - impairment of the sense of sight


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From the University of Alabama and Brisbane, Australia, Elgin and colleagues (2010) examined the extent to which drivers with hemianopia or quadrantanopia display safe driving skills when evaluated on road compared with drivers with normal visual fields.
A centrocaecal scotoma in one eye accompanied by a superior temporal quadrantanopia in the other eye, termed a 'junctional' scotoma, is suggestive of a prechiasmal lesion close to where the optic nerve meets the chiasm (Figure 3 C).
Item 3 is scored: 0 - no visual loss; 1 - partial hemianopsia, which includes quadrantanopia (visual loss in a quadrant of the total visual field); 2 - complete hemianopsia or loss of vision in both top and bottom quadrants on the right or left side of the patient's visual field; 3 - is scored if visual loss is noted on both right and left sides of the visual fields or total blindness.
 
 
 
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