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Ophthalmology. 1995 Jan;102(1):7-16.

The Wisconsin Epidemiologic Study of Diabetic Retinopathy. XV. The long-term incidence of macular edema.

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1
Department of Ophthalmology and Visual Sciences, University of Wisconsin Medical School, Madison.

Abstract

BACKGROUND:

As part of a population-based study of diabetes mellitus, the incidence of macular edema over a 10-year period and its relation to various risk factors are examined.

METHODS:

There were 891 younger-onset people with a diagnosis of having had diabetes before 30 years of age who were taking insulin at baseline examination and 987 older-onset people with a diagnosis of having had diabetes at 30 years of age or older who participated in baseline and 4-year examinations. Of these, 765 younger-onset and 533 older-onset people also participated in a 10-year examination. The presence of macular edema at baseline and follow-up examinations was determined from gradings of stereoscopic fundus photographs.

RESULTS:

The incidence of macular edema over the 10-year period was 20.1% in the younger-onset group, 25.4% in the older-onset group taking insulin, and 13.9% in the older-onset group not taking insulin. The incidence of macular edema over the 10-year period was associated with higher levels of glycosylated hemoglobin and more severe retinopathy in both younger- and older-onset groups, and with being female and increased diastolic blood pressure in the older-onset group.

CONCLUSIONS:

These data suggest a relatively high incidence of macular edema. The authors' data also suggest that a reduction in hyperglycemia may result in a beneficial decrease in the incidence of macular edema.

PMID:
7831044
[Indexed for MEDLINE]
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