Diabetes Care, Vol 7, Issue 4 318-321, Copyright © 1984 by American Diabetes Association
Abnormal color vision and reliable self-monitoring of blood glucose
P Lombrail, G Cathelineau, P Gervais and N Thibult
Color vision was assessed in 103 insulin-dependent diabetic patients using
the Farnsworth-Munsell 100-Hue Test. All showed color vision impairment.
Thirty-four had true dyschromatopsia while 22 suffered from tritanopia or
other axial defects. We evaluated how accurately diabetic patients could
monitor their own blood glucose by asking them to read a series of 30
precalibrated BM Test Glycemic Strips (Chemstrip, Boehringer, Mannheim,
West Germany) without a meter. Patients with axial defects performed least
well regardless of 100-Hue scores. Reading accuracy of patients with no
axial defects was strongly correlated to 100-Hue scores, although patients
having dyschromatopsia were consistently hesitant about their readings. Our
results suggest that self-monitoring of blood glucose without a meter is
indicated only after color vision has been examined by the 100-Hue Test.
Self-monitoring should be voided with patients suffering from axial defects
or having unsatisfactory 100-Hue scores.