hemeralopia


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Related to hemeralopia: nyctalopia

hemeralopia

 [hem″er-al-o´pe-ah]
defective vision in a bright light; called also day blindness and night sight.

hem·er·a·lo·pi·a

(hem'ĕr-ăl-ō'pē-ă),
Inability to see as distinctly in a bright light as in reduced illumination; seen in patients with impaired cone function.
[G. hēmera, day, + alaos, obscure, + ōps, eye]

hemeralopia

/hem·er·a·lo·pia/ (hem″er-ah-lo´pe-ah) day blindness; defective vision in bright light.

hemeralopia

(hĕm′ər-ə-lō′pē-ə)
n.
A visual defect characterized by the inability to see as clearly in bright light as in dim light.

hem′er·a·lop′ic (-lŏp′ĭk) adj.

hemeralopia

[hem′ərəlō′pē·ə]
Etymology: Gk, hemera, day, alaos, blind, ops, eye
an abnormal visual condition in which bright light causes blurring of vision. Hemeralopia is an unpleasant side effect of certain anticonvulsant medications, including trimethadione, prescribed in treatment of children with petit mal epilepsy. Also called day blindness, night sight. hemeralopic, adj.

hem·er·a·lo·pi·a

(hem'ĕr-ă-lō'pē-ă)
Inability to see as distinctly in a bright light as in reduced illumination; seen in patients with impaired cone function.
Synonym(s): day blindness.
[G. hēmera, day, + alaos, obscure, + ōps, eye]

hemeralopia

Inability to see as well in bright light as in dim. From the Greek hemera , day, alaos , blind and ops an eye.

hemeralopia

Term used to mean either night blindness in which there is a partial or total inability to see in the dark associated with a loss of rod function or vitamin A deficiency; or day blindness in which there is reduced vision in daylight while vision is normal in the dark. Syn. nyctalopia (this term is only synonymous with night blindness); night sight (this term is only synonymous with day blindness). See girate atrophy; congenital stationary night blindness; choroideremia; Oguchi's disease; retinitis pigmentosa.

hemeralopia

day blindness; defective vision in a bright light due to a degeneration or absence of cones. An inherited defect in Alaskan malamutes and miniature poodles.