Vision Sciences Laboratory, Behavioral and Brain Sciences Program, Department of Psychology, University of Georgia, Athens, GA, USA.
Research & Development, Johnson & Johnson Vision Care, Inc., Jacksonville, FL, USA.
J Vis. 2023 Jan 3;23(1):2. doi: 10.1167/jov.23.1.2.
We assessed the effect of a contact lens that filters short-wavelength (SW) visible light on color appearance. These effects were modeled and measured by direct comparison to a clear contact lens. Sixty-one subjects were enrolled, and 58 completed as cohort; 31 were 18 to 39 years old (mean ± SD, 29.6 ± 5.6), 27 were 40 to 65 years old (50.1 ± 8.1). A double-masked contralateral design was used; participants randomly wore a SW-filtering contact lens on one eye and a clear control lens on the other eye. Subjects then mixed three primaries (including a short-wave primary, strongly within the absorbance of the test lens) until a perceived perfect neutral white was achieved with each eye. Color appearance was quantified using chromaticity coordinates measured with a spectral radiometer within a custom-built tricolorimeter. Color vision in natural scenes was simulated using hyperspectral images and cone fundamentals based on a standard observer. Overall, the chromaticity coordinates of matches that were set using the SW-filtering contact lens (n = 58; x = 0.345, y = 0.325, u' = 0.222, v' = 0.470) and clear contact lens (n = 58; x = 0.344, y = 0.325, u' = 0.223, v' = 0.471) were not significantly different, regardless of age group. Simulations indicated that, for natural scenes, the SW-filtering contact lens that was evaluated changes L/(L+M) and S/(L+M) chromatic contrast by no more than -1.4% to +1.1% and -36.9% to +5.0%, respectively. Tricolorimetry was used to measure color appearance in subjects wearing a SW-filtering lens in one eye and a clear lens in the other, and the results indicate that imparting a subtle tint to a contact lens, as in the SW-filtering lens that was evaluated, does not alter color appearance for younger or older subjects. A model of color vision predicted little effect of the lens on chromatic contrast for natural scenes.
我们评估了一种过滤短波长（SW）可见光的隐形眼镜对颜色外观的影响。这些效果通过与透明隐形眼镜直接比较来建模和测量。共有 61 名受试者入组，58 名完成了研究；其中 31 名年龄在 18 至 39 岁（平均 ± SD，29.6 ± 5.6），27 名年龄在 40 至 65 岁（50.1 ± 8.1）。采用双盲对侧设计；参与者随机一只眼佩戴 SW 过滤隐形眼镜，另一只眼佩戴透明对照隐形眼镜。然后，受试者用三种原色（包括一种短波原色，强烈位于测试镜片的吸收范围内）混合，直到用每只眼睛获得感知到的完美中性白色。使用光谱辐射计在定制三色仪内测量色度坐标来量化颜色外观。使用基于标准观察者的高光谱图像和锥体细胞基础模拟自然场景中的颜色视觉。总体而言，使用 SW 过滤隐形眼镜（n = 58；x = 0.345，y = 0.325，u' = 0.222，v' = 0.470）和透明隐形眼镜（n = 58；x = 0.344，y = 0.325，u' = 0.223，v' = 0.471）设置匹配的色度坐标没有显著差异，无论年龄组如何。模拟表明，对于自然场景，评估的 SW 过滤隐形眼镜对 L/（L+M）和 S/（L+M）色度对比度的影响不超过-1.4%至+1.1%和-36.9%至+5.0%，分别。三色法用于测量一只眼佩戴 SW 过滤隐形眼镜而另一只眼佩戴透明隐形眼镜的受试者的颜色外观，结果表明，给隐形眼镜赋予细微的色调，如评估的 SW 过滤隐形眼镜，不会改变年轻或年长受试者的颜色外观。颜色视觉模型预测该镜片对自然场景的色度对比度影响很小。
