functional visual loss
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func·tion·al vis·u·al loss
an apparent loss of visual acuity or visual field with no substantiating physical signs; often due to a natural concern about visual loss combined with suggestibility and a fear of the worst; best treated with reassurance.
functional visual loss
A reduction in vision with no identifiable lesion of the visual pathways. It may be caused by an occult disease of the eye or of the optical centers in the brain. It may also occur in certain psychiatric disorders.
See also: loss
functional visual loss
Reduced vision experienced by an individual, but which is not based on objective measurements that could explain the symptom. See hysterical amblyopia; malingering.