Aims-To develop and validate a scale for the measurement of visual symptoms and functional disability due to cataract in older UK residents.
Methods-In depth semistructured interviews were undertaken with 44 consecutive patients awaiting cataract surgery.
Patients were asked to describe visual symptoms and problems with social functioning which were then incorporated into a questionnaire, the cataract symptom scale (CSS).
The CSS was further examined in a cohort of 118 consecutive cataract patients awaiting surgery.
Further assessments in these patients included visual acuity, visual function using an existing scale (the VF-14), activities of daily living, perceived health status, anxiety and depression, and a global assessment of how much patients felt their visual symptoms affected their daily life.
A 15 item scale was derived which was simple to administer to older patients and had a high internal consistency.
The test-retest correlation coefficient for the total instrument score was r=0.91 (p<0.0001).
The CSS correlated well with the VF-14 and to a lesser extent with visual acuity in the better eye, activities of daily living, perceived health status, anxiety and depression, and the patients'global assessment of visual symptoms.
Conclusion-The CSS provides information regarding the symptomatic and functional status of older cataract patients resident in the UK which cannot be obtained by measurement of visual acuity alone.
Mots-clés Pascal : Cataracte, Echelle évaluation, Méthode mesure, Questionnaire, Déficit, Acuité visuelle, Handicap, Royaume Uni, Europe, Personne âgée, Homme, Oeil pathologie, Cristallin pathologie, Segment antérieur pathologie, Trouble vision
Mots-clés Pascal anglais : Cataract, Evaluation scale, Measurement method, Questionnaire, Deficiency, Visual acuity, Handicap, United Kingdom, Europe, Elderly, Human, Eye disease, Lens disease, Anterior segment disease, Vision disorder
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0275972
Code Inist : 002B09G. Création : 16/11/1999.