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Age-Related Effects on the Color Discrimination Threshold.

Ali Almustanyir1, Mohammed Alhazmi1, Amal Aldarwesh1

  • 1Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia.

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Summary
This summary is machine-generated.

This study provides normative data for the Konan ColorDx Cone Contrast Threshold (CCT) HD test. It reveals age and sex influence color vision, with females and younger adults showing higher sensitivity.

Keywords:
Konan ColorDx CCT HDL coneM coneS conecolor visioncone contrast sensitivitywavelength cone systems

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Area of Science:

  • Ophthalmology
  • Visual Neuroscience
  • Human Physiology

Background:

  • Traditional color vision tests lack sensitivity for subtle differences in normal vision.
  • Quantitative measurement of cone-specific color discrimination is needed.
  • The Konan ColorDx Cone Contrast Threshold (CCT) HD test offers precise measurement.

Purpose of the Study:

  • Establish normative values for L-, M-, and S-cone contrast sensitivities.
  • Evaluate the impact of age and sex on color discrimination thresholds.
  • Validate the Konan ColorDx CCT HD test for clinical use.

Main Methods:

  • Cross-sectional study with 216 participants (15-79 years, normal color vision).
  • Monocular measurement of Cone Contrast Thresholds (CCTs) using Konan ColorDx CCT HD test.
  • Statistical analysis to assess age and sex influences on cone sensitivities.

Main Results:

  • L-cone sensitivity was highest, followed by M- and S-cone sensitivities across all groups.
  • Females exhibited significantly higher overall contrast sensitivity than males.
  • Age-related decline in sensitivity was observed, most notably for S-cones in individuals over 60.

Conclusions:

  • The study provides crucial age- and sex-stratified normative data for the Konan ColorDx CCT HD test.
  • This data supports the test's utility in clinical and occupational settings for assessing color vision.
  • Findings highlight sex and age as significant factors influencing normal color discrimination.