Diabetes, fasting blood glucose and age-related cataract: the Blue Mountains Eye Study.

Aims: To examine the relationship between diabetes and the presence of cortical, nuclear and posterior subcapsular (PSC) cataract in a defined older population, while controlling for known cataract risk factors.

Methods: Slit-lamp and retroillumination lens photographs were taken on 3654 participants attending the population-based Blue Mountains Eye Study during 1992-94. Masked grading of the photographs was performed using the Wisconsin Cataract Grading System.