[The role of color vision disturbances in diagnostics of early diabetic retinopathy].
OBJECTIVE
The evaluations of color vision sensitivity in children with type I diabetes mellitus without retinopathy.


METHODS
We examined 96 young patients. They was divided into three groups: I: 35 children from 7 to 16 years old with insulin-dependent diabetes mellitus duration of 1-8 years, II: 30 children with type I diabetes lasting more then 8 years, III--31 non-diabetic subjects as a control-matched for age and sex, without visual or systemic symptoms. The examinations of colour vision sensitivity were done with the IF-2AII-color Anomaloscope. In all cases were tested the dynamic blue-green equation of Moreland and two variables were determined: setting (matching) range (SR), calculated mid point (matching mid point) (CMP).


RESULTS
In the blue-green equation setting range (SR) was significantly (p < 0.01) enlarged in the II group (diabetes mellitus duration > 8 years) and calculated mid point (CMP) was shifted but no significant. The results indicate a diminution of the colour discriminating sensitivity in the short wavelength half of the visible spectrum and diminution of the blue cone sensitivity in early diabetic retinopathy.


CONCLUSIONS
Blue-green colour vision testing with the anomaloscope may serve as an additional test in the diagnosis of early diabetic retinopathy in children without vascular changes at the eye fundus.
Mulak
Małgorzata
M
Katedry i Kliniki Okulistyki Akademii Medycznej we Wrocławiu.
Reniewska
Barbara
B
Kostuś
Ewa
E
Balcewicz
Arnold
A
Misiuk-Hojło
Marta
M
D000293:Adolescent; D016022:Case-Control Studies; D002648:Child; D003119:Color Perception Tests / Q000379:methods; D003117:Color Vision Defects / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D003922:Diabetes Mellitus, Type 1 / Q000150:complications* / Q000503:physiopathology; D003930:Diabetic Retinopathy / Q000150:complications* / Q000209:etiology / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D012680:Sensitivity and Specificity; D013997:Time Factors