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An example of a neurological impairment is a cortical visual impairment (CVI) which is defined as "...abnormal or inefficient vision resulting from a problem or disorder affecting the parts of brain that provide sight". [59] The following section will discuss the role of occupational therapy when working with the visually impaired.
For patients with visuospatial dysgnosia, the information input may be strengthened by adding tactile, motor, and verbal perceptual inputs. This comes from the general occupational therapy practice of teaching clients with intellectual dysfunctions to use the most effective combinations of perceptual input modalities, which may enable them to complete a task.
Cortical visual impairment (CVI) is a form of visual impairment that is caused by a brain problem rather than an eye problem. (The latter is sometimes termed "ocular visual impairment" when discussed in contrast to cortical visual impairment.) Some people have both CVI and a form of ocular visual impairment.
Visual impairment is caused by factors including brain damage, vision loss, and others. [4] Of the vision rehabilitation techniques available, most center on neurological and physical approaches. According to the American Academy of Ophthalmology, "Provision of, or referral to, vision rehabilitation is now the standard of care for all who ...
The development of cortical blindness into the milder cortical visual impairment is a more likely outcome. [2] Furthermore, some patients regain vision completely, as is the case with transient cortical blindness associated with eclampsia and the side effects of certain anti-epilepsy drugs.
Visual impairment can also be caused by problems in the brain due to stroke, premature birth, or trauma, among others. [12] These cases are known as cortical visual impairment. [12] Screening for vision problems in children may improve future vision and educational achievement. [13] Screening adults without symptoms is of uncertain benefit. [14]
Simultanagnosia (or simultagnosia) is a rare neurological disorder characterized by the inability of an individual to visually perceive more than a single object at a time. . This type of visual attention problem is one of three major components (the others being optic ataxia and optic apraxia) of Bálint's syndrome, an uncommon and incompletely understood variety of severe neuropsychological ...
The symptoms of CDD include early infantile onset refractory epilepsy; hypotonia; developmental, intellectual, and motor disabilities, with little or no speech; and cortical visual impairment. [1] Patients usually present first with seizures within the first months of life, followed by infantile spasms which progress to epileptic seizures that ...