adventitious visual impairment

partial or total visual impairment that results from injury or illness following a period of normal visual ability. Onset of the impairment can produce severe grief, mourning reactions, and dependency. As a consequence, any residual visual capacity may not be used effectively, exacerbating psychological and social-adjustment problems. Also called acquired visual impairment. Compare congenital visual impairment.

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Psychology term of the day

February 23rd 2025

biperiden

n. a synthetic anticholinergic drug closely related to trihexyphenidyl but having greater affinity for nicotinic receptors than for muscarinic receptors, compared with trihexyphenidyl. It is used to manage symptoms of Parkinson’s disease and parkinsonian symptoms induced by antipsychotic drugs. U.S. trade name: Akineton.