KeratoScoop (Rebecca's blog)

This is kind of an interesting piece... about methodologies for figuring out to what extent things toxic ingredients (such as benzalkonium chloride, a common preservative in prescription eyedrops) are adsorbed by contacts and may pose safety issues.

Evaluation of cytotoxic potential of cored soft contact lenses with adsorbed active ingredients from over-the-counter eye drops.

Thin, gel-like, hydrated soft contact lenses are directly placed on human eyes and can be used with

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