hemianopsian.

Forms: Also hemianopsy.

Etymology: modern Latin, < hemi- prefix + Greek ἀν- privative + ὄψις sight.Previous versions of the OED give the stress as: hemiaˈnopsia.

Pathology.

Half-blindness, being a loss of perception of one half the field of vision.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of eye > disordered vision > [noun] > limited visual field

hemiopia1811

scotoma1821

concentric contraction1858

hemianopia1882

hemianopsia1883

field defect1884

quadrantanopia1909

quadrantanopsia1910

macular sparing1940

tunnel vision1949

1883 Ophthalmic Rev. II. 82 The above named recent works on hemianopsia and the decussation of the optic nerve contain much of interest.

1884 Encycl. Brit. XVII. 785/1 Hemianopsia means loss of one-half of the visual field.

1885 W. Stirling tr. L. Landois Text-bk. Human Physiol. II. 786 When it is spoken of as paralysis of one-half of the retina, the term hemiopia is applied to it; when, with reference to the field of vision, the term hemianopsia is used.

1891 J. Hutchinson in Archives Surg. II. 303 Persisting vertical hemianopsia.

1893 Brit. Med. Jrnl. 18 Nov. 1107/1 There was..complete blindness of one eye and diminished vision, but no hemianopsia of the other.

1908 Practitioner Jan. 15 Attacks of aphasia, monoplegias, hemiplegias, word-blindness, and word-deafness, or hemianopsy.

1962 L. S. Sasieni Princ. & Pract. Optical Dispensing viii. 200 Hemianopsia spectacles.

This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2021).

单词	hemianopsia
释义	hemianopsian. Forms: Also hemianopsy. Etymology: modern Latin, < hemi- prefix + Greek ἀν- privative + ὄψις sight.Previous versions of the OED give the stress as: hemiaˈnopsia. Pathology. Half-blindness, being a loss of perception of one half the field of vision. ΘΚΠ the world > health and disease > ill health > a disease > disorders of eye > disordered vision > [noun] > limited visual field hemiopia1811 scotoma1821 concentric contraction1858 hemianopia1882 hemianopsia1883 field defect1884 quadrantanopia1909 quadrantanopsia1910 macular sparing1940 tunnel vision1949 1883 Ophthalmic Rev. II. 82 The above named recent works on hemianopsia and the decussation of the optic nerve contain much of interest. 1884 Encycl. Brit. XVII. 785/1 Hemianopsia means loss of one-half of the visual field. 1885 W. Stirling tr. L. Landois Text-bk. Human Physiol. II. 786 When it is spoken of as paralysis of one-half of the retina, the term hemiopia is applied to it; when, with reference to the field of vision, the term hemianopsia is used. 1891 J. Hutchinson in Archives Surg. II. 303 Persisting vertical hemianopsia. 1893 Brit. Med. Jrnl. 18 Nov. 1107/1 There was..complete blindness of one eye and diminished vision, but no hemianopsia of the other. 1908 Practitioner Jan. 15 Attacks of aphasia, monoplegias, hemiplegias, word-blindness, and word-deafness, or hemianopsy. 1962 L. S. Sasieni Princ. & Pract. Optical Dispensing viii. 200 Hemianopsia spectacles. This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2021). < n.1883
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