ISSN : 1229-6457(Print)
ISSN : 2466-040X(Online)
ISSN : 2466-040X(Online)
The Korean Journal of Vision Science Vol.27 No.3 pp.221-232
DOI : https://doi.org/10.17337/JMBI.2025.27.3.221
DOI : https://doi.org/10.17337/JMBI.2025.27.3.221
Effects of ChromaGen Lenses on Color Perception in Individuals with Normal Color Vision
Abstract
Purpose : To study the effects of wearing four types of ChromaGen lenses (blue, yellow, magenta and pink) on color perception in individuals with normal color vision.
Methods : A total of 48 adults (mean age 23.6±2.9 years) with corrected visual acuity of 1.0 and no ocular disease or color vision deficiency participated. The Farnsworth-Munsell 100 Hue Test was conducted in a darkroom under a standardized illumination booth with a built in D65 light source. Color perception was assessed under the Without ChromaGen lenses condition and while wearing blue, yellow, magenta, and pink lenses by measuring the total error score (TES) and hue-range error scores (ES).
Results : All ChromaGen lenses showed statistically significant differences compared with the Without ChromaGen lenses condition (p<0.001). TES were highest with the pink (82.5), followed by magenta (68.4), yellow (62.4), blue (41.4), and Without ChromaGen lenses (31.4). ES varied by hue range according to spectral transmittance characteristics. Pink and magenta lenses, which block middle wavelengths, induced greater errors in the green-yellow to blue-green ranges, while the blue lens showed relatively low errors. The pink lens produced the greatest overall distortion in color perception.
Conclusion : When prescribing blue, yellow, magenta and pink ChromaGen lenses significantly affected color perception in color vision normal individuals. Spectral transmittance was identified as the main determinant of error patterns. TES and ES analyses indicated distortions that could not be explained by luminous transmittance alone. Prescriptions should therefore consider not only wavelength-specific transmittance but also the wearer’s age, lighting conditions, and work environment. This study provides basic data for optometrists’ color-related education and clinical consulting.
Methods : A total of 48 adults (mean age 23.6±2.9 years) with corrected visual acuity of 1.0 and no ocular disease or color vision deficiency participated. The Farnsworth-Munsell 100 Hue Test was conducted in a darkroom under a standardized illumination booth with a built in D65 light source. Color perception was assessed under the Without ChromaGen lenses condition and while wearing blue, yellow, magenta, and pink lenses by measuring the total error score (TES) and hue-range error scores (ES).
Results : All ChromaGen lenses showed statistically significant differences compared with the Without ChromaGen lenses condition (p<0.001). TES were highest with the pink (82.5), followed by magenta (68.4), yellow (62.4), blue (41.4), and Without ChromaGen lenses (31.4). ES varied by hue range according to spectral transmittance characteristics. Pink and magenta lenses, which block middle wavelengths, induced greater errors in the green-yellow to blue-green ranges, while the blue lens showed relatively low errors. The pink lens produced the greatest overall distortion in color perception.
Conclusion : When prescribing blue, yellow, magenta and pink ChromaGen lenses significantly affected color perception in color vision normal individuals. Spectral transmittance was identified as the main determinant of error patterns. TES and ES analyses indicated distortions that could not be explained by luminous transmittance alone. Prescriptions should therefore consider not only wavelength-specific transmittance but also the wearer’s age, lighting conditions, and work environment. This study provides basic data for optometrists’ color-related education and clinical consulting.