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  1. Measurements of vision function and quality of life in patients with cataracts in Southern India : Report of instrument development.

    Article - En anglais


    To develop and validate vision function (VF) and quality of life (QOL) instruments in patients with cataracts in the context of large volume surgery in a developing country.

    Materials and Methods 

    The instruments were developed using a consensus approach.

    One hundred patients who were undergoing cataract surgery at Aravind Eye Hospital, Madurai, India, were interviewed preoperatively and 3 and 12 months postoperatively.

    Standard clinical procedures were followed, including measurement of visual acuity.

    Between-interviewer reproducibility was measured by repeated administration of the preoperative questionnaire.

    Within-interviewer reproducibility was measured preoperatively in a separate study of 50 patients.


    Preoperative scores from the VF and QOL instruments were significantly associated with visual acuity (r=0.4).

    Internal reliability (Cronbach a) was greater than .9. Both instruments showed large changes after surgery, with effect sizes of 3 or greater for most VF scales (range, 1.8-3.7) and 1 or greater for QOL scales (range, 1.0-2.2).

    Changes in visual acuity after surgery were correlated with changes in the VF (r=0.44) and QOL (r=0.41) scale scores.

    Between-interviewer reproducibility was acceptable (total VF scale, Spearman r=0.7 ; total QOL scale, r=0.74).

    The K values were lower for within-interviewer reproducibility. (...)

    Mots-clés Pascal : Cataracte, Inde, Asie, Vision, Qualité vie, Méthode mesure, Homme, Oeil pathologie, Cristallin pathologie, Segment antérieur pathologie

    Mots-clés Pascal anglais : Cataract, India, Asia, Vision, Quality of life, Measurement method, Human, Eye disease, Lens disease, Anterior segment disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 97-0340627

    Code Inist : 002B09G. Création : 12/09/1997.