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  • Title: Early diagnosis of retinal changes in diabetes: a comparison between electroretinography and retinal biomicroscopy.
    Author: Wanger P, Persson HE.
    Journal: Acta Ophthalmol (Copenh); 1985 Dec; 63(6):716-20. PubMed ID: 4096217.
    Abstract:
    The present study was undertaken in order to find out whether electroretinographic examinations could reveal signs of functional abnormalities before morphological changes are detected in the diabetic retina. Pattern-reversal and flash electroretinograms (ERG) and oscillatory potentials (OP) were recorded in 24 diabetics and 10 age-matched normal controls. The diabetic group consisted of 11 patients without retinopathy and 13 patients with background retinopathy. No significant changes in pattern-reversal or flash ERG or OP amplitudes were observed in the diabetic group with normal fundus or with background retinopathy. The findings imply that ERG examination with the described techniques does not reveal retinal dysfunction in diabetics before retinopathy can be detected by means of retinal biomicroscopy.
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