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Visual evoked potentials in diabetes mellitus
Author(s) -
Yaltkaya K.,
Balkan S.,
Baysal A. I.
Publication year - 1988
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1988.tb05902.x
Subject(s) - diabetes mellitus , visual evoked potentials , medicine , sural nerve , retinopathy , optic nerve , central nervous system , audiology , evoked potential , nervous system , cardiology , ophthalmology , surgery , endocrinology , psychiatry
— 25 diabetic patients have been studied in order to investigate the possible effects of the disease on the central nervous system by means of pattern shift visual evoked potentials. Patients with diabetic retinopathy, glaucoma and cataract were excluded from the study. Results obtained from a control group of 30 normal subjects were compared to those of the patient group in which sural nerve conduction velocities have also been determined to see whether there is a correlation between peripheral and central involvement of the nervous system. In diabetic patients latency prolongation in the P 100 and N 140 components were observed. The N 90 ‐N 140 interpeak latency was also prolonged. In addition, in patients with longstanding diabetes mellitus the incidence of VEP abnormalities was found to be high. Pathologic changes in VEP latencies did not show any correlation with sural nerve conduction abnormalities.