The handicap of abnormal colour vision

Area of Science:

• Ophthalmology
• Human-Computer Interaction
• Visual Perception

Background:

• Abnormal colour vision affects daily life and work, posing increasing challenges in a visually complex world.
• Modern society's extensive use of colour in print and digital displays exacerbates difficulties for those with colour vision deficiencies.
• Equal opportunity laws mandate strong evidence for employment exclusion based on colour vision abnormalities.

Purpose of the Study:

• To review research on the nature and consequences of problems experienced by individuals with abnormal colour vision.
• To provide evidence supporting the need for accommodations and understanding in employment and daily life.

Main Methods:

• Literature review of investigations into colour vision deficiencies.
• Analysis of studies examining the impact of colour vision on tasks involving colour discrimination, coding, and search.

Main Results:

• Individuals with abnormal colour vision experience disadvantages in precise colour matching and discrimination tasks.
• Difficulties are reported with colour-coded information, including artificial and natural cues (e.g., fruit ripeness, meat freshness).
• Impaired colour perception leads to slower search times, unreliability in colour identification, and challenges in art appreciation.

Conclusions:

• Abnormal colour vision significantly impacts daily functioning, work performance, and engagement with visually rich environments.
• A comprehensive understanding of these challenges is crucial for fair employment practices and societal inclusion.
• Further research and awareness are needed to mitigate the disadvantages faced by individuals with colour vision deficiencies.