[The evaluation of contrast sensitivity in children and adolescents with insulin-dependent diabetes mellitus].
OBJECTIVE
The evaluation of contrast sensitivity in children and adolescents with type I diabetes mellitus with and without retinopathy, taking into account metabolic control.


METHODS
We examined 100 young patients (71 without retinopathy and 29 with background retinopathy on fluorescein angiography) and 60 control non-diabetic subjects matched for age and sex, without visual or systemic symptoms. Contrast sensitivity was measured in spatial frequency of 3, 6, 12 and 18 cycles/degree (c/d).


RESULTS
Contrast sensitivity was significantly lower (p < 0.001) in four spatial frequencies in all diabetic patients and in IDDM patients without retinopathy than in control group. Patients with IDDM and retinopathy had abnormal contrast sensitivity at spatial frequency 18 c/d when compared with patients without retinopathy. There was no correlation between contrast sensitivity and HbA1c values.


CONCLUSIONS
Contrast sensitivity measurement in children and adolescents with type I diabetes is useful in the evaluation of the nature of early abnormalities in retinal function of diabetics.
Urban
B
B
Kliniki Okulistyki Dzieciecej AM w Białymstoku.
Bakunowicz-Lazarczyk
A
A
Peczyńska
J
J
Urban
M
M
D000293:Adolescent; D000328:Adult; D002648:Child; D015350:Contrast Sensitivity / Q000502:physiology*; D003922:Diabetes Mellitus, Type 1; D003930:Diabetic Retinopathy / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male
Ocena wrazliwości na kontrast u dzieci i młodziezy z cukrzyca insulinozalezna.