CVI

CVI is an acronym used in several different fields. In medicine, CVI most commonly refers to cerebral visual impairment, a form of visual impairment caused by brain dysfunction rather than problems in the eyes. It can arise from developmental conditions, brain injury, or neurological disease. People with CVI may have difficulty processing visual information such as motion, form, color, or depth, and may benefit from individualized assessment and support focusing on environmental adaptations and functional vision strategies. Diagnosis involves collaboration among ophthalmologists, neurologists, and therapists, with care focusing on functional goals. There is no single cure; management emphasizes tailored education and rehabilitation.

In psychometrics and research, CVI stands for Content Validity Index, a measure used to quantify the degree to which items on a test or survey reflect the intended construct. Item-level CVI (I-CVI) and scale-level CVI (S-CVI) are commonly reported. Methods typically involve expert ratings of item relevance on a Likert scale; calculations yield a CVI value, with higher values indicating stronger content validity. Limitations include subjectivity and the influence of the number of experts.

Other uses and meanings of CVI exist in various domains, such as organization names or project titles, and are highly context-dependent. When encountering CVI, identifying the relevant field is essential to determine the intended meaning.