Contact Lenses for Color Vision Deficiency
Contact Lenses for Color Vision Deficiency
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DOI：
10.1002/admt.202000797
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发表时间：
2020-11-30
影响因子：
6.8
通讯作者：
Butt, Haider
中科院分区：
文献类型：
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作者：
Elsherif, Mohamed;Salih, Ahmed E.;Butt, Haider
色盲或色觉缺陷（CVD）影响欧洲约4.5%的人口。已经有几次尝试使用滤色眼镜来帮助色盲个体。在这里，隐形眼镜的开发是为了帮助患有色盲的人。选择提供所需吸收波长范围的两种染料（Atto 488和565）以固定在软性接触透镜中。所选择的染料具有在480-500和550-580 nm波长范围内的吸收带。这两种染料单独固定在隐形眼镜中，并且超过95%的不期望范围内的光被阻挡。在人工泪液和接触透镜保存溶液中，染料不会从镜片中扩散出来。将所开发的隐形眼镜的性能与商业色盲眼镜进行比较。使用石原试验在色觉缺陷患者中测试接触镜。参与者表示，在色彩丰富的环境中，颜色的可见度和对比度得到了增强。与商业色盲眼镜相比，所提出的隐形眼镜在室内显示出增强的结果，并在室外实现了类似的结果。
Color blindness or color vision deficiency (CVD) affects around 4.5% of the population in Europe. There have been several attempts to assist color-blind individuals using color filter glasses. Here, contact lenses are developed to assist individuals suffering from color blindness. Two dyes (Atto 488 and 565) that provide the desired absorption wavelength ranges are selected to be immobilized in soft contact lenses. The chosen dyes have absorption bands in wavelength ranges of 480-500 and 550-580 nm. Both dyes are individually immobilized in contact lenses, and over 95% of the light in the undesired ranges are blocked. The dyes do not diffuse out from lenses in artificial tears and contact lens storage solution. Performances of the developed contact lenses are compared to commercial color-blind glasses. The contact lenses are tested in color vision deficient patients using Ishihara test. Participants indicate enhancement in the visibility of the colors and their contrast in a color rich environment. The proposed contact lenses show enhanced results as compared to commercial color-blind glasses in indoors and achieved similar outcomes outdoors.