A Study on the Acquired Color Vision Deficit in Diabetes Mellitus

ABSTRACT

Authors studied the acquired color vision deficit in diabetic patients. Two color vision test, Hahn's 15 hue test and City University Color Vision test(CUCV test), were applied to assess the color vision in 25 diabetic patients and 20 controls. Diabetic patients had significantly more color vision defect(59.2%) than controls on two color vision tests. The type of acquired color vision deficit in diabetic patients was tritan axis. The frequency of acquired color vision defect in diabetic patients was significantly higher in group with diabetic retinopathy than without diabetic retinopathy. In comparison between two color vision test, Hahn's 15 hue test was more sensitive than CUCV test was useful to evaluate the type of color deficit. Diabetic group treated with laser photocoagulation had the moderate or severe color vision defect, with tritan axis.