hemiopiahemiopsian.
Pathology.
= hemianopsia n.
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
1811 R. Hooper Quincy's Lexicon-medicum (new ed.) Hemiopsia, a defect of vision, in which the person sees the half, but not the whole of an object.
1838 Penny Cycl. XII. 114/2 Hemiopia.
1854 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Hemiopia, Hemiopsia..hemiopy: hemiopsy.
1855 D. Brewster Mem. Life I. Newton (new ed.) I. x. 230 The curious disease of hemiopsy, or amaurosis dimidiata, in which the patient sees with each eye only half of an object, being blind to the other half.
1864–70 T. Holmes & J. W. Hulke Syst. Surg. (1883) II. viii. 77 Transient hemiopsia is often an initial symptom of megrim.
Derivatives
hemiˈopic adj.
ΘΚΠ
the world > health and disease > ill health > a disease > disorders of eye > disordered vision > [adjective] > with limited visual field
hemiopic1873
hemianopic1889
tubular1903
macula-sparing1935
1873 Arch. Sci. & Pract. Med. I. 293 (title) Hemiopic and sector-like defects in the field of vision.
1890 W. James Princ. Psychol. I. ii. 42 A hemiopic disturbance of vision is one in which neither retina is affected in its totality, but in which, for example, the left portion of each retina is blind, so that the animal sees nothing situated in space towards its right.
This entry has not yet been fully updated (first published 1898; most recently modified version published online December 2020).
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n.1811