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hemianopia
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hemianopia
hemianopia Ophthalm. (ˌhɛmɪəˈnəʊpɪə) [mod.L., f. hemi- + Gr. ἀν priv. + -ωπία sight.] = hemianopsia. Hence hemiaˈnopic a., of, pertaining to, or characterized by hemianopia; also as n., a person with hemianopia.1882 Ophthalmic Rev. I. 253 The more exactly the cause of a homonymous hemianopia can be ...
Oxford English Dictionary
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Homonymous hemianopsia
Hemianopsia, or hemianopia, is a visual field loss on the left or right side of the vertical midline. Homonymous hemianopsia (or homonymous hemianopia) is hemianopic visual field loss on the same side of both eyes.
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Hemianopsia
Hemianopsia, or hemianopia, is a loss of vision or blindness (anopsia) in half the visual field, usually on one side of the vertical midline. Management
Some forms of hemianopia can be treated through repeated presentations of multisensory stimuli due to the process of multisensory integration
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homonymous
homonymous, a. (həʊˈmɒnɪməs) [f. late L. homōnym-us, a. Gr. ὁµώνυµ-ος of the same name, n. a namesake, pl. τὰ ὁµώνυµα (Aristotle) equivocal nouns, ambiguous words; f. ὁµός same + ὄνοµα (æolic ὄνυµα) name: see -ous.] 1. a. Denoting different things by the same name (said of the same word used in diff...
Oxford English Dictionary
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Bitemporal hemianopsia
each visual field
anopsia: blindness (formed by a(n) no + opsis vision + ia)
See also
Binasal hemianopsia
Homonymous hemianopsia
Monocular temporal hemianopia
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quadrantanopia
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...
Oxford English Dictionary
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Anopsia
Types of partial anopsia:
Hemianopsia
Homonymous hemianopsia
Heteronymous hemianopsia
Binasal hemianopsia
Bitemporal hemianopsia
Superior hemianopia
Inferior hemianopia
Quadrantanopia
References
External links
Visual disturbances and blindness
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Chiasmal syndrome
Posterior lesions may also involve the optic tract and cause a contralateral homonymous hemianopia. Bitemporal hemianopia with or without central scotoma is present if the lesions have affected the body of the chiasm.
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Intraparenchymal hemorrhage
paresis, homonymous hemianopsia, aphasia, neglect, or apraxia
Thalamus - Contralateral sensory loss, contralateral hemiparesis, gaze paresis, homonymous hemianopia , miosis, aphasia, or confusion
Lobar - Contralateral hemiparesis or sensory loss, contralateral conjugate gaze paresis, homonymous hemianopia, abulia
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Inferior parietal lobule
the dominant hemisphere results in Gerstmann's syndrome: right-to-left confusion, finger agnosia, dysgraphia and dyslexia, dyscalculia, contralateral hemianopia non-dominant hemisphere results in topographic memory loss, anosognosia, construction apraxia, dressing apraxia, contralateral sensory neglect, contralateral hemianopia
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Partial anterior circulation infarct
It is diagnosed by any one of the following
2 out of 3 features of
Higher dysfunction
Dysphasia
Visuospatial disturbances
Homonymous hemianopia
Motor
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Visual pathway lesions
Signs and symptoms
Incongruous homonymous hemianopia. Signs and symptoms
Incongruous homonymous hemianopia.
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Total anterior circulation infarct
when it causes all 3 of the following symptoms:
Higher dysfunction
Dysphasia
Visuospatial disturbances
Decreased level of consciousness
Homonymous hemianopia
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Vision restoration therapy
Vision restoration therapy (VRT) is a noninvasive form of vision therapy which claims to increase the size of the visual fields in those with hemianopia
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Posterior circulation infarct
contralateral motor/sensory defect
Bilateral motor or sensory defect
Eye movement problems (e.g.nystagmus)
Cerebellar dysfunction
Isolated homonymous hemianopia
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