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Colour vision impairment and alcohol consumption.
D Mergler1, L Blain, J Lemaire
1Département des Sciences Biologiques, Université du Québec à Montréal.
Neurotoxicology and Teratology
|May 1, 1988
Summary
Heavy alcohol consumption significantly impairs color vision, leading to acquired dyschromatopsia, particularly blue-yellow color loss. This vision impairment is linked to both age and alcohol intake levels.
Area of Science:
- Ophthalmology
- Neuroscience
- Toxicology
Background:
- Acquired dyschromatopsia can result from various factors.
- Alcohol consumption is a widespread behavior with potential health implications.
- The specific impact of alcohol intake on color vision requires further elucidation.
Purpose of the Study:
- To investigate the relationship between alcohol consumption levels and color discrimination capacity.
- To assess the prevalence and patterns of acquired dyschromatopsia in relation to alcohol intake.
Main Methods:
- A cohort of 136 individuals, including 16 undergoing detoxification, was studied.
- Weekly alcohol consumption was quantified using a detailed questionnaire.
- Color vision was assessed using the Lanthony D-15 desaturated panel test.
Main Results:
- Dyschromatopsia prevalence increased with higher alcohol intake across all age groups.
- All heavy drinkers (over 751 g/week) exhibited some degree of dyschromatopsia.
- Color vision loss was predominantly blue-yellow, with some complex red-green patterns observed in treated individuals.
Conclusions:
- Alcohol intake is a significant contributing factor to acquired dyschromatopsia.
- Age and alcohol consumption are independently associated with color vision loss.
- These findings highlight the neurotoxic effects of alcohol on the visual system.