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Published on 08/03/2015 by admin

Filed under Opthalmology

Last modified 08/03/2015

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Q

quadrantanopia Visual field loss in a quarter of the visual field of the eye. The defect is usually bilateral, as it is caused by a lesion past the optic chiasma. It may be homonymous (binasal, bitemporal, upper or lower), crossed (one upper and the other lower), congruous (equal size of the defects), or incongruous (unequal size of the defects) (Fig. Q1). Syn. quadrantanopsia; quadrantic anopsia; quadrantic hemianopia.

See hemianopia.

quadrantanopia, superior A superior, homonymous quadrantanopia due to a lesion of the most anterior and inferior fibres of the

image
Fig. Q1

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