Preliminary examination of the reliability and relation to clinical state of a measure of low vision patient functional status.
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 less than 0.001.
Ross
C K
CK
West Side VA Medical Center, School of Public Health, University of Illinois, Chicago.
Stelmack
J A
JA
Stelmack
T R
TR
Fraim
M
M
D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011932:Reading; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012682:Sensory Aids; D011795:Surveys and Questionnaires; D015354:Vision, Low / Q000175:diagnosis*; D014792:Visual Acuity; D014794:Visual Fields