Prevalence of undiagnosed diabetic retinopathy among inpatients with diabetes: the diabetic retinopathy inpatient study (DRIPS).

Objective: To determine the prevalence and risk factors of diabetic retinopathy in the inpatient diabetic population in the USA and to determine the barriers to ophthalmic examinations and treatment among this population.

Research Design And Methods: A cross-sectional analysis of 113 inpatients with diabetes mellitus admitted to an inner city community teaching hospital in Pittsburgh. Digital fundus photographs of the posterior pole were taken of each eye after pharmacological dilation.