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Living the vision.

07:00 EST 1st January 2000 | BioPortfolio

Summary of "Living the vision."

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This article was published in the following journal.

Name: Gastroenterology nursing : the official journal of the Society of Gastroenterology Nurses and Associates
ISSN: 1538-9766
Pages: 286-7

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Medical and Biotech [MESH] Definitions

Vision considered to be inferior to normal vision as represented by accepted standards of acuity, field of vision, or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g., MACULAR DEGENERATION; RETINITIS PIGMENTOSA; DIABETIC RETINOPATHY, etc.).

Persons with loss of vision such that there is an impact on activities of daily living.

Application of tests and examinations to identify visual defects or vision disorders occurring in specific populations, as in school children, the elderly, etc. It is differentiated from VISION TESTS, which are given to evaluate/measure individual visual performance not related to a specific population.

Defects of color vision are mainly hereditary traits but can be secondary to acquired or developmental abnormalities in the CONES (RETINA). Severity of hereditary defects of color vision depends on the degree of mutation of the ROD OPSINS genes (on X CHROMOSOME and CHROMOSOME 3) that code the photopigments for red, green and blue.

Failure or imperfection of vision at night or in dim light, with good vision only on bright days. (Dorland, 27th ed)

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