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Fluorescein angiography in borderline diabetics
Diabete & Metabolisme
|June 1, 1979
Summary
Men with borderline diabetes show increased retinal abnormalities like microaneurysms. These minor retinal changes, detected via fluorescein angiography, may indicate early diabetic retinopathy risk.
Area of Science:
- Ophthalmology
- Endocrinology
- Medical Diagnostics
Background:
- Impaired glucose tolerance, or borderline diabetes, is a precursor to type 2 diabetes.
- Retinal microvascular changes can be early indicators of systemic metabolic dysfunction.
- Fluorescein angiography is a key diagnostic tool for visualizing retinal vasculature and detecting abnormalities.
Purpose of the Study:
- To investigate the frequency and nature of retinal abnormalities in men with impaired oral glucose tolerance.
- To compare retinal findings between borderline diabetics and normoglycaemic controls.
Main Methods:
- Fluorescein angiography was conducted on 23 men with impaired oral glucose tolerance and 16 matched normoglycaemic controls.
- Retinal abnormalities, including microaneurysms and dye leakage, were identified and quantified.
- Participants were categorized into sustained borderline diabetics and those who progressed to diabetes.
Main Results:
- Retinal abnormalities were observed in 18.7% of controls, 41.6% of sustained borderline diabetics, and 54.4% of those who progressed to diabetes.
- The qualitative nature of retinal abnormalities was similar across all groups.
- While not statistically significant, a trend suggests a higher frequency of minor retinal abnormalities in sustained borderline diabetics compared to controls.
Conclusions:
- Moderate impairment of glucose tolerance is associated with an increased frequency of minor retinal abnormalities.
- These findings suggest potential early microvascular changes in the retina related to glucose intolerance.
- Further research is needed to determine the long-term clinical significance of these retinal abnormalities.