Preliminary Examination of the Reliability and Relation to Clinical State of a Measure of Low Vision Patient Functional Status
- 1 December 1991
- journal article
- research article
- Published by Wolters Kluwer Health in Optometry and Vision Science
- Vol. 68 (12) , 918-923
- https://doi.org/10.1097/00006324-199112000-00002
Abstract
An evaluation of the reliability and relation to clinical state of a measure of low vision patient functional status was conducted. The measure included discrete tasks aggregated into three different areas: identifying objects, reading, and daily/leisure activities. Data were obtained retrospectively from case records of 247 low vision patients and 144 complete cases were used for statistical analyses. Evidence of reliability was found with coefficient alpha scores for the three areas ranging from 0.90 to 0.96. Significant relations between functional status and clinical states (acuity, contrast sensitivity, and visual field) were found with R2 values ranging from 0.39 to 0.58, p<0.001.Keywords
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