K 287Population-based study of diabetic retinopathy in Wolfsburg
L. Hesse1, J. Schmidt1, P. Kroll1, M. Grüßer2 , P. Hartmann2, V. Jörgens3
Introduction: Since November 1997 fulfilled documentation of an ophthalmologic examination is reimbursed by Volkswagen Corporation Health Maintenance Organization (VW-HMO) once a year.
Methods: Results of an annual ophthalmologic examination was denoted in a standardized history sheet developed by the Initiative Group for Early Detection of Diabetic Eye Diseases. These data included visual acuity, intraocular pressure, lens status and a description of fundus abnormalities.
Results: Within 25 months ophthalmological examinations of 2650 patients were completed which represented 4,38% of all VW-HMO insured patients. In average, time of onset in these diabetics was 9.6 years (SD ±8.68). Intraocular lenses were observed in 340 eyes (6.8%) and 633 eyes (12.0 %) were diagnosed with cataract impairing visual acuity. Of 263 patients younger than 40 years 18.4% had a mild or moderate and 3.4% a severe nonproliferative diabetic retinopathy (NPDR). A proliferative diabetic vitreoretinopathy (PDVR) was found in 2.3% of the younger patients. Of 2228 patients of 40 years and elder 11.9% had a mild or moderate and 2.6% a severe NPDR. In 0.8% of this group PDVR was diagnosed.
Conclusions: An annual ophthalmological screening based on a survey sheet of the Initiative Group was successfully introduced. For the first time the prevalence of diabetic retinopathy was population-based evaluated for inhabitants of a German city. Prevalence of PDVR was lower than pulished prior in comparable studies.
1. Dept. of Ophthalmology, Philipps-University, Robert-Koch-Str. 4, D-35033 Marburg
2. Central Institute of Health Maintenance Organization in the FRG, Höninger Weg 115, 50969 Köln
3. Dept. of Metabolic Diseases, Moorenstr. 5, 40225 Düsseldorf