Effects of Contrast Sensitivity on Colour Vision Testing

Anvesh Annadanam, Jiawei Zhao, Jiangxia Wang, Allen Eghrari

Research output: Contribution to journalArticle


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.

Original languageEnglish (US)
Pages (from-to)182-186
Number of pages5
Issue number4
Publication statusPublished - Jul 4 2017



  • Contrast sensitivity
  • Farnsworth D-15
  • Hardy-Rand-Rittler
  • Ishihara

ASJC Scopus subject areas

  • Ophthalmology
  • Clinical Neurology

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