Article

Cerebral vision disorders (CVDs) are frequent after brain damage and
impair the patient's outcome. Yet clinically and psychometrically validated
procedures for the anamnesis of CVD are lacking.
OBJECTIVE: To evaluate the
clinical validity and psychometric qualities of the Cerebral Vision Screening
Questionnaire (CVSQ) for the anamnesis of CVD in individuals poststroke. METHODS:
Analysis of the patients' subjective visual complaints in the 10-item CVSQ in
relation to objective visual perimetry, tests of reading, visual scanning, visual
acuity, spatial contrast sensitivity, light/dark adaptation, and visual depth
judgments. Psychometric analyses of concurrent validity, specificity,
sensitivity, positive/negative predictive value, and interrater reliability were
also done. RESULTS: Four hundred sixty-one patients with unilateral (39.5% left,
47.5% right) or bilateral stroke (13.0%) were included. Most patients were
assessed in the chronic stage, on average 36.7 (range = 1-620) weeks poststroke.
The majority of all patients (96.4%) recognized their visual symptoms within 1
week poststroke when asked for specifically. Mean concurrent validity of the CVSQ
with objective tests was 0.64 (0.54-0.79, P < .05). The mean positive predictive
value was 80.1%, mean negative predictive value 82.9%, mean specificity 81.7%,
and mean sensitivity 79.8%.
The mean interrater reliability was 0.76 for a 1-week
interval between both assessments (all P < .05). CONCLUSION: The CVSQ is suitable
for the anamnesis of CVD poststroke because of its brevity (10 minute), clinical
validity, and good psychometric qualities. It, thus, improves neurovisual
diagnosis and guides the clinician in the selection of necessary assessments and
appropriate neurovisual therapies for the patient.
CI - (c) The Author(s) 2015.

Langue : ANGLAIS