J Korean Ophthalmol Soc.  2018 Jul;59(7):622-628. 10.3341/jkos.2018.59.7.622.

Comparison of Contrast Sensitivity and Color Vision according to the Different Illumination in Patients with Cataract

• Yoon YS
• Lee CK
• Kang SO
• Kim SW

• KMID: 2416264
• DOI: http://doi.org/10.3341/jkos.2018.59.7.622

Abstract

PURPOSE
To compare the difference of contrast sensitivity and color vision in patients with cataracts under three illuminations (fluorescent light, three-wavelength light emitting diode [LED], and quantum dot LED).
METHODS
Thirty eyes with normal intraocular pressure and normal fundus of patients who visited the outpatient clinic for the treatment of cataract were included. In patients with cataracts with grade 2 of nucleus color/opalescence according to the Lens Opacities Classification System, version III (LOCS III) and without cataracts in the cortex or posterior pole of the slit lamp examination, contrast sensitivity and color vision test were performed under fluorescent light, three-wavelength LED, and quantum dot LED.
RESULTS
The error scores of quantum dot LED were significantly lower than those of fluorescent light and three-wavelength LED (p < 0.05), and the error scores of blue spectrum was relatively higher than those of other colors.
CONCLUSIONS
In cataract patients, the difference of color sensation occurs due to illumination in color vision test, and it is considered that the degree of color sensitivity is more severe in insufficient illumination and low color rendering index in color vision test. If we replace the indoor lighting with the light source distribution similar to the sunlight and replace it with the illumination with high color rendering index, we can render higher quality of life to cataract patients through psychophysical advantage and high color perception.

Keyword

Cataract; Color vision; Contrast sensitivity; Illumination

MeSH Terms

Ambulatory Care Facilities
Cataract*
Classification
Color Perception
Color Vision*
Contrast Sensitivity*
Humans
Intraocular Pressure
Lighting*
Quality of Life
Quantum Dots
Sensation
Slit Lamp
Sunlight

Figure

• 

  Figure 1. This graph shows Error score of Farnsworth-Munsell (FM) 100 hue test in control group with different illumination light. p > 0.05. LED = light emitting diode. Based on one-way analysis of variance (ANOVA) test.

• 

  Figure 2. Contrast sensitivity scores in log unit of three groups at four different spatial frequencies. Vertical bar means ± standard deviation. No statistical difference was found between three lighting source groups at all spatial frequencies (p-value was 0.875, 0.961, 0.864 and 0.921 at 3, 6, 12 and 18 cycles per degree). Based on one-way analysis of variance (ANOVA) test. LED = light emitting diode.

• 

  Figure 3. This graph shows Error score of 4 rows of Farnsworth-Munsell (FM) 100 hue test with fluorescent light. p = 0.024. Based on one-way analysis of variance (ANOVA) test.

• 

  Figure 4. This graph shows Error score of 4 rows of Farnsworth-Munsell (FM) 100 hue test with 3 wave light emitting diode (LED). p = 0.036. Based on one-way analysis of variance (ANOVA) test.

• 

  Figure 5. This graph shows Error score of 4 rows of Farnsworth-Munsell (FM) 100 hue test with Q-dot light emitting diode (LED). p = 0.048. Based on one-way analysis of variance (ANOVA) test.

Reference

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