nhemianopsiablindness in one half of the visual field of one or both eyes
Century Dictionary and Cyclopedia
nhemianopsiaIn pathology, complete or partial loss of sight, affecting one half of the field of vision. The epithets right, left, temporal, nasal, etc., as applied to hemianopsia, refer to the fields of vision, and not to the parts of the retina involved. Hemiopia refers to the same condition, but relates to the vision which is kept rather than to that which is lost. Corresponding, equilateral, or homonymous hemianopsia involves corresponding—that is, right or left —parts of the fields of vision of the two eyes. Crossed or symmetrical hemianopsia is an obscuration of symmetrical halves of the fields of vision, as of the two temporal or two nasal halves. Also hemiablepsia, hemianopia.
Chambers's Twentieth Century Dictionary
nHemianopsiahem′i-an-op′si-a complete or partial blindness as to half the field of vision—also Hemianōp′ia, Hemiō′pia, Hemiop′sia, Hem′opsy