The vitamin, which is normally associated with anti-ageing properties, forms a mesh inside the lens, which slows the release of the drug, ensuring it spends much longer in the eye.

维生素，通常被认为有抗衰老的特性，在隐形眼镜内部形成一个网眼，延缓了药物的释放过程，确保药物可以在眼睛里停留更长的时间。

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Obviously, that's the premiere feature of the new release, but the software has also been retooled to mesh more with the look and feel of the OS -- there's even a cover flow-like contact window -- and a new pop-out call control bar that can be moved anywhere on the screen or be kept open while in another program.

ENGADGET: Skype 5.0 Beta for Mac finally available, includes group video calling