[Color vision in relation to age: a study of normal values]

Area of Science:

• Ophthalmology
• Visual Science
• Psychophysics

Context:

• Quantifying color vision thresholds is challenging, particularly for tritan hues where age significantly impacts results.
• Computer-graphic methods can eliminate luminance cues in color vision testing, enabling more accurate assessments.
• Existing color vision tests often lack normative data and struggle with age-related variations.

Purpose:

• To establish normative values for color contrast thresholds using a novel computer-graphic method.
• To assess age-related changes in both central and peripheral color vision thresholds.
• To develop a reliable method for detecting vision impairments by minimizing luminance artifacts.

Summary:

• 115 participants aged 6-71 were tested for central and peripheral color contrast sensitivity using isoluminant stimuli.
• Color contrast thresholds were measured along protan, deutan, and tritan axes using a binary search technique.
• No significant age-related correlation was found for central vision, while a minor increase was noted for peripheral protan and tritan axes.

Impact:

• The developed system effectively removes luminance clues, allowing for accurate testing of both central and peripheral vision.
• The normative data generated are largely independent of age, simplifying interpretation and enhancing disease detection.
• The standardized, calibrated system provides reliable upper limits of normal for similar computer-based color vision tests.