Developing a Preference-Based Glaucoma Utility Index Using a Discrete Choice Experiment

Abstract

This study developed a preference-based utility measure (Glaucoma Utility Index) using the DCE approach. The index, estimated on the basis of 286 respondents, demonstrated both theoretical and convergent validity with other generic health outcome measures and measures of glaucoma severity. Further research investigating preferences by clinically defined glaucoma health status is indicated. Methodological research should focus on alternative methods of scaling for use within a generic Quality Adjusted Life Year framework.