quadrantanopia Ophthalm.
(ˌkwɒdræntəˈnəʊpɪə)
[mod.L., f. quadrant n.1 + Gr. ἀν- priv. + -ωπια sight.]
A quadrantic loss of perception in an eye.
| 1942 I. S. Tassman Eye Manifestations of Internal Dis. iii. 75 The quadrantanopias affecting both fields may be homonymous, bitemporal, or binasal, inferior, superior, or crossed. 1964 S. Duke-Elder Parsons' Dis. Eye (ed. 14) xxiv. 358 Rare cases of homonymous quadrantanopia have been reported, in which corresponding quadrants of each field—the upper or lower half of one temporal, and the upper or lower half of the other nasal—have been lost. 1979 Internat. Rehabilit. Med. I. 53/1 The presence of a hemianopia or quadrantanopia was assessed by a confrontation method and confirmed by peripheral perimetry. |