Hotta Fumika, Eguchi Hiroshi, Imai Shoji, Miyamoto Tatsuro, Mitamura-Aizawa Sayaka, Mitamura Yoshinori
Department of Ophthalmology (F.H., H.E., T.M., S.M.-A., Y.M.), Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan; and Division of Chemistry (S.I.), Institute of Socio-Arts and Sciences, The University of Tokushima, Tokushima, Japan.
Eye Contact Lens. 2015 Sep;41(5):291-6. doi: 10.1097/ICL.0000000000000122.
To investigate the surfaces and principal elements of the colorants of cosmetically tinted contact lenses (Cos-CLs).
We analyzed the surfaces and principal elements of the colorants of five commercially available Cos-CLs using scanning electron microscopy with energy-dispersive x-ray analysis.
In two Cos-CLs, the anterior and posterior surfaces were smooth, and colorants were found inside the lens. One lens showed colorants located to a depth of 8 to 14 μm from the anterior side of the lens. In the other lens, colorants were found in the most superficial layer on the posterior surface, although a coated layer was observed. The colorants in the other three lenses were deposited on either lens surface. Although a print pattern was uniform in embedded type lenses, uneven patterns were apparent in dot-matrix design lenses. Colorants used in all lenses contained chlorine, iron, and titanium. In the magnified scanning electron microscopy images of a certain lens, chlorine is exuded and spread.
Cosmetically tinted contact lenses have a wide variety of lens surfaces and colorants. Colorants may be deposited on the lens surface and consist of an element that has tissue toxicity.
研究美容染色隐形眼镜（Cos-CLs）色素的表面及主要成分。
我们使用扫描电子显微镜结合能谱X射线分析，对五种市售Cos-CLs色素的表面及主要成分进行了分析。
在两款Cos-CLs中，前后表面光滑，色素位于镜片内部。一款镜片显示色素位于距镜片前表面8至14μm深处。在另一款镜片中，尽管观察到有涂层，但在后表面的最表层发现了色素。另外三款镜片中的色素沉积在镜片的任一表面。虽然嵌入式镜片的印刷图案均匀，但点阵设计镜片中的图案不均匀。所有镜片中使用的色素都含有氯、铁和钛。在某款镜片的放大扫描电子显微镜图像中，氯渗出并扩散。
美容染色隐形眼镜有各种各样的镜片表面和色素。色素可能沉积在镜片表面，且由具有组织毒性的元素组成。
