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. 2017 May 19;41(4):182-186.
doi: 10.1080/01658107.2017.1295273. eCollection 2017 Aug.

Effects of Contrast Sensitivity on Colour Vision Testing

Anvesh Annadanam  1 , Jiawei Zhao  1 , Jiangxia Wang  2 , Allen O Eghrari  1
Affiliations

Effects of Contrast Sensitivity on Colour Vision Testing

Anvesh Annadanam et al. Neuroophthalmology. .

Abstract

This study analyses how contrast sensitivity loss affects colour vision (CV) testing. Eleven participants were scored while cycling through randomly arranged pictures of CV tests with varying levels of contrast changes applied. Hardy-Rand-Rittler (HRR) scores declined significantly at each successive decrease in contrast level after the highest setting (p < 0.004). HRR scores were also lower than those for Ishihara and Farnsworth D-15 tests at two contrast settings (p < 0.01). Contrast changes had the greatest impact on HRR scores, indicating that this test may not be an accurate reflection of CV in patients with contrast sensitivity loss.

Keywords: Contrast sensitivity; Farnsworth D-15; Hardy-Rand-Rittler; Ishihara.

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Figures

Figure 1.
Figure 1.
Percentage difference in accuracy based on contrast level. At low and medium contrast levels, accuracy decreased significantly in HRR compared to Ishihara or D15 testing.
See this image and copyright information in PMC

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