Serum homocysteine as a risk factor in diabetic with colour vision deficiency and for developing retinopathy

Assessment of Color Vision in Diabetic Patients

“…In this study we have concluded a highly statistical significance (P≤0.001) between the increase in macular thickness and in the deterioration of color vision, which is similar to the reports of Sadiqulla et al and Shin et al [25,26] .…”

“…The average OCT measured macular thickness of the diabetic patients in this study was 230.71±28.06 µm and ranging from 115-312 µm, while Sadiqulla et al [25] reported an average of 276 µm and range of 198-388 µm and Sasaki et al [33] reported an average of 273.7±17.8 μm, Goeble et al [34] reported and average of 283 µm and Oshima [35] reported an average of 283 µm. Lower value of the average macular thickness in our study could be due to the criteria of selection excluding diabetic patient with BCVA less than 6/60.…”

“…The quality of color vision defects in the diabetic acquired dyschromatopsia was the aim of several studies, Sadiqulla et al [25] reported a red-green loss pattern prevailing then total color blindness, Shin et al [26] reported a Blue-yellow loss pattern, the same reported by Patz et aland Ma´ar et al [27,28] which was further explained by thepsychophysical measurements which show that the three cone types red, green and blue are present in the approximate proportion 40:20:1, respectively, in the control retina and are randomly distributed in the cone matrix [29] , Leading to early loss of blue color then combined Tritanopia and Deutanopia then Protanopia at last in contrary to congenital color vision deficiency pattern with Protanopia prevailing.…”

“…Lower value of the average macular thickness in our study could be due to the criteria of selection excluding diabetic patient with BCVA less than 6/60. Also, the methodology used by Sadiqulla [25] to include the diabetic patients whom already diagnosed to suffer color vision deficiency which was reported to be correlated with increased average macular thickness on other hands almost all the studies including diabetic patients reported increase in average macular thickness when compared to normal individuals like the results of Goeble et al [34] .…”

Partial reversal of color vision impairment in type 2 diabetes associated with obstructive sleep apnea

“…Patients with exudative maculopathy are expected to demonstrate marked defects of color vision, wherein the central macular thickness on OCT is above 260 microns [ 6 ]. In our case, the central macular thicknesses were 172 microns in the right eye and 175 microns in the left eye.…”