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Effect of variable tinted spectacle lenses on visual performance in control subjects
Jason E Lee1, Jonathan J Stein, Meredith B Prevor
1Department of Ophthalmology, New York University Medical Center, New York, USA.
Summary
Tinted spectacle lenses, specifically purple and blue tints, may enhance contrast sensitivity under glare conditions in individuals without visual pathology. Yellow tints showed the largest increase in contrast thresholds, indicating reduced performance.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Tinted lenses are often used to enhance visual performance.
- Their effects on contrast sensitivity, particularly under glare, require quantitative evaluation.
Purpose of the Study:
- To quantitatively assess the impact of various tinted spectacle lenses on visual performance in healthy individuals.
- To determine if specific lens tints can mitigate the negative effects of glare on contrast sensitivity.
Main Methods:
- Twenty-five subjects without visual pathology participated.
- Contrast sensitivity was measured with and without induced glare using a modified brightness acuity tester.
- Six different lens tints (gray, brown, yellow, green, purple, blue) and a clear lens were evaluated in a counterbalanced order.
Main Results:
- All lens tints increased contrast thresholds under glare conditions.
- Purple and blue lens tints exhibited the smallest increase in contrast thresholds, suggesting better performance.
- Yellow lens tint demonstrated the largest increase in contrast thresholds, indicating poorer performance under glare.
Conclusions:
- Purple and blue tinted spectacle lenses may offer benefits for contrast sensitivity in individuals experiencing glare.
- The findings suggest that specific lens colors can modulate visual performance in challenging lighting conditions.