Socioeconomic status and incident cataract surgery: the Blue Mountains Eye Study

The aim of this study was to assess whether socioeconomic status influenced the incidence of cataract surgery in a defined population of older Australians. The Blue Mountains Eye Study examined 3654 residents during 1992-1994, then 2334 survivors (75.1%)during 1997-1999. Interviewers collected information on principal occupation, which was analysed using Australian Bureau of Statistics categories (stratified into four groups) and the Daniel Occupational Prestige Scale. Cataract surgical history was confirmed at both visits from clinical examinations. There were no statistically significant associations for any of the occupational categories with the 5-year incidence of cataract surgery. In summary, this study could not confirm any major socioeconomic associations with incident cataract surgery, supporting the view that cataract surgery is largely patient driven and that its primary incentive is patient benefit.