Abstract

This study investigated the characteristics and location of the pigment layer of commercially available tinted contact lenses and evaluated ocular surface properties. The rub-off test and anterior segment Fourier-domain optical coherence tomography were used to analyze the pigment layer of the lenses. They also completed a rating questionnaire of subjective symptom perception after wearing. Among the four groups, there were significant differences in the ocular surface properties on day 3 (p < 0.05). Most of the ocular surface properties were significantly different between baseline and after being worn on day 1, day 3 and day 7 (p < 0.05), especially for tinted contact lenses with pigment layers on the lens surface. On initial wearing of the tinted contact lenses, contact between pigment layers on the surface of the lens and ocular tissues appeared to irritate the ocular surface more than non-pigment layers on the surface. Pigment-tinted soft contact lenses with lower oxygen permeability may cause worse ischemic signs on the ocular surface. However, the ocular surface adapted gradually and the symptoms decreased after wearing the tinted contact lens.

摘要

这项研究调查了市售有色隐形眼镜的色素层的特性和位置，并评估了其眼表特性。摩擦试验和前节傅里叶域光学相干断层扫描技术用于分析镜片的色素层。他们还完成了佩戴后主观症状感知的等级问卷。在四组中，第3天的眼表特性存在显着差异（p  <0.05）。在第1天，第3天和第7天，大多数眼表特性在基线与佩戴后之间存在显着差异（p <0.05），特别是对于在镜片表面带有颜料层的有色隐形眼镜。初次戴有色隐形眼镜时，镜片表面的色素层与眼组织之间的接触似乎比非色素层对眼睛的刺激更大。具有较低透氧性的带有颜料色的软性隐形眼镜可能会导致眼表缺血症状恶化。但是，戴有色隐形眼镜后，眼表逐渐适应，症状减轻。