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ORIGINAL ARTICLE
Year : 2013  |  Volume : 5  |  Issue : 2  |  Page : 43-48

Color vision deficit in diabetes mellitus in presence of no or minimal diabetic retinopathy


Faculty of Optometry and Visual Science, Al Neelain University, Khartoum, Sudan

Correspondence Address:
Galal Mohamed Ismail
Faculty of Optometry and Visual Science, Al Neelain University, Khartoum,
Sudan
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DOI: 10.4103/1858-540X.124819

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Introduction: Color vision examination is of great clinical interest in diabetes mellitus, since changes in color vision can be accepted as an indication of pathological condition. Color vision as a psychophysical measurement was performed with a view to providing an assessment of early neural functional integrity in the presence of no or minimal diabetic retinopathy. Materials and Methods: The investigation was carried out on a healthy visual system control group and a number of age and sex-matched non-insulin dependent diabetic groups with different levels of diabetic retinopathy. The psychophysical test used was the Farnsworth Munsell 100-Hue test. Results: The results were considered in terms of the presence of functional changes relative to the severity of retinopathy and the duration of diabetes. The color vision test differentiated between normal and those with diabetes but without retinopathy. Clearly the color vision score error mean is increased in the diabetic groups compared with the normal subjects and the level of the score error mean increases with the severity of retinopathy, but not to duration. Conclusion : C0 hanges in color vision are not strongly related to the duration of diabetes, but more to the severity of the retinopathy.


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