Characteristics Of Vision Of Children With Cvi Essay

1752 Words Nov 8th, 2015 null Page
Characteristics of Vision in Children with CVI The visual system is a powerful and complex tool for understanding and perceiving the world. It has many aspects and dimensions that change throughout an individual’s lifetime. Therefore, it is unsurprising that there are many stages of vision at which perception can become impaired. Cortical (or cerebral) visual impairment (CVI) refers to any impairment or loss of vision brought about by damage to the brain or the central nervous system, rather than physical problems with the eye itself (ocular impairment); therefore, children and other individuals with CVI do not appear to have any cause for visual impairment when examined physically (Palmer, 2003). Historically, CVI has also been referred to as “cortical blindness,” though this is not generally an accurate term since most individuals with CVI retain some aspects of vision (Roland et al., 1986).
CVI tends to have a high rate of comorbidity with cognitive and motor impairments, which can make diagnosis and testing difficult (Watson et al., 2010). Additional disabilities that frequently occur with CVI include cerebral palsy, hydrocephalus, and intellectual disabilities (Palmer, 2003). The effects of CVI are not heterogeneous and manifest differently depending on the cause of the impairment and the individual experiencing it; CVI affected individuals’ experiences also tend to be inconsistent over time and worsened by fatigue, illness, unfamiliarity with the environment, and poor…

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