Centre of Physics, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Centre of Physics, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Cont Lens Anterior Eye. 2021 Oct;44(5):101414. doi: 10.1016/j.clae.2021.01.009. Epub 2021 Feb 9.
Investigate changes in optical properties of contact lenses materials (transmittance and reflectance) and lens care solutions (absorption and fluorescence) resulting from its interaction.
From an experimental study, triplicate measurements of transmittance and reflectance of five contact lenses (Senofilcon A, Lotrafilcon B, Balafilcon A, Comfilcon A, and Omafilcon A), as well as UV-vis absorption and fluorescence of four lens care solutions (LCS) (ReNu MultiPlus, Biotrue, OPTI-FREE PureMoist, and AOSept Plus), were evaluated before and after 8 h, one day and one week in storage. The outcomes were provided by Shimadzu UV3101-PC UV-vis-NIR spectrophotometer equipped with an integrating sphere, between 200-700 nm, and SPEX-Fluorolog 2 FL3-22 spectrofluorometer.
All variables exhibited statistically significant differences over time. Comfilcon A showed the lowest ultraviolet radiation (UVR) A & B attenuation. Balafilcon A and Lotrafilcon B displayed a slight suppression of UVR. Senofilcon A was effective in UVR protection and showed less effect on the fluorescence of lens care solutions. Overall, the reflectance decreased after storage (p < 0.05). AOSept Plus absorbance and fluorescence demonstrated lower interactions than multipurpose solutions (MPS), and Lotrafilcon B induced more remarkable changes in optical properties of LCS than the other materials.
The findings suggest that optical variables of lens care solutions and contact lenses changed mutually after storage, probably associated with biochemical and biophysical interactions between components and the release of some polymer compounds. These findings can provide additional information about the interaction of CL materials and LCS in clinical behavior.
研究接触镜材料（透光率和反射率）和隐形眼镜护理液（吸收和荧光）在相互作用下光学性质的变化。
从一项实验研究中，对五种隐形眼镜（硅水凝胶、水凝胶、氟硅酮水凝胶、水凝胶和奥玛氟龙）的透光率和反射率进行了三次重复测量，以及对四种隐形眼镜护理液（ReNu MultiPlus、Biotrue、OPTIFREE PureMoist 和 AOSept Plus）的紫外可见吸收和荧光进行了三次重复测量。在储存 8 小时、1 天和 1 周后，评估了这些参数。结果由配备积分球的岛津 UV3101-PC UV-vis-NIR 分光光度计（200-700nm）和 SPEX-Fluorolog 2 FL3-22 荧光分光光度计提供。
所有变量在时间上均表现出统计学上的显著差异。康氟酮 A 显示出最低的紫外线 A 和 B 衰减。氟硅酮水凝胶 A 和水凝胶 B 对紫外线有轻微的抑制作用。硅水凝胶 A 对紫外线有很好的保护作用，对隐形眼镜护理液的荧光影响较小。总的来说，储存后反射率降低（p<0.05）。AOSept Plus 的吸收和荧光显示出比多功能隐形眼镜护理液更低的相互作用，而 Lotrafilcon B 对隐形眼镜护理液的光学性质的变化比其他材料更为显著。
研究结果表明，储存后隐形眼镜护理液和接触镜的光学参数相互发生变化，这可能与成分之间的生化和物理相互作用以及一些聚合物化合物的释放有关。这些发现可以为隐形眼镜材料与隐形眼镜护理液在临床行为中的相互作用提供更多信息。
