J Korean Ophthalmol Soc.  2012 Feb;53(2):238-245.

Contrast Sensitivity and Color Vision Comparison Between Clear and Yellow-Tinted Intraocular Lens in Diabetic Retinopathy

• Lim KO
• Kim TJ
• Lee JH

Abstract

PURPOSE
To compare contrast sensitivity and color vision after implantation of a clear intraocular lens (IOL) and a yellow-tinted IOL in diabetic retinopathy patients.
METHODS
In the 50 eyes of 25 diabetic patients with non-proliferative diabetic retinopathy, clear IOLs were implanted in 25 eyes, and yellow-tinted IOLs were implanted in 25 fellow eyes. Three months after the surgery, contrast sensitivity function was measured with a vision contrast test system, and color discrimination was tested using the Farnsworth Munsell 100-hue test.
RESULTS
Eyes implanted with yellow-tinted IOLs had significant differences in contrast sensitivity values compared to those of fellow eyes implanted with clear IOLs in both the moderate diabetic retinopathy group (6.0 cycles per degree) and the severe diabetic retinopathy group (throughout all spatial frequencies except 12.0 cycles per degree). The yellow-tinted IOL did not modify chromatic discrimination compared with that of the clear IOL. In the blue-yellow axis error score, however, there were significant differences between the clear IOL and the yellow-tinted IOL.
CONCLUSIONS
With progressing diabetic retinopathy, the yellow-tinted IOL provided better contrast sensitivity than the clear IOL. The yellow-tinted IOL improved color vision in the blue-yellow chromatic axis without causing chromatic discrimination defects.

Keyword

Color vision test; Contrast sensitivity test; Diabetic retinopathy; Yellow-tinted intraocular lens

MeSH Terms

Axis, Cervical Vertebra
Color Vision
Contrast Sensitivity
Diabetic Retinopathy
Discrimination (Psychology)
Eye
Humans
Lenses, Intraocular
Vision, Ocular

Figure

• 

  Figure 1 Mean contrast sensitivity at the 5 spatial frequencies in clear IOL and yellow IOL according to DMR stage (rhombus = Yellow-tinted IOL; squares = Clear IOL). Vertical bars represent ± SD. (A) Mean contrast sensitivity in mild diabetic retinopathy, the paired t-test p-values were 1.00, 0.080, 0.191, 0.351 and 0.080 at 1.5, 3, 6, 12, and 15 cpd frequencies. (B) Mean contrast sensitivity in moderate diabetic retinopathy, the paired T-test p-values were 0.081, 0.106, 0.026, 0.347 and 0.083 at 1.5, 3, 6, 12, and 15 cpd frequencies. (C) Mean contrast sensitivity in severe diabetic retinopathy, the paired T-test p-values were 0.033, 0.033, 0.033, 0.080 and 0.020 at 1.5, 3, 6, 12, and 15 cpd frequencies. DMR = diabetic retinopathy; Yellow IOL = yellow-tinted intraocular lens; Clear IOL = clear intraocular lens.

• 

  Figure 2 Average scores (mean and SD) of the Farnsworth-Munsell 100-hue test for both intraocular lens according to diabetic retinopathy. A,B,C = total error scores; D,E,F = blue yellow axis error scores. DMR = diabetic retinopathy; Yellow IOL = yellow-tinted intraocular lens; Clear IOL = clear intraocular lens; p = paired t-test p-value.

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