From the American Academy of Ophthalmology

Looking for a way to disinfect a contact lens with direct UV light without harming the lens, researchers designed a new contact lens inset case and a device to deliver UV light to that inset case. Subjected to an in vitro test, the UV device produced an average log reduction of over 3.5 log of Acanthamoeba cysts when the lens and solution inside of the inset case was irradiated with 130 mJ per cm2 of UV or greater. After 30 cycles of 130 mJ per cm2 UV dose each, no gross changes were observed in mechanical properties or cytotoxicity tests in any soft contact lenses tested. American Journal of Ophthalmology, September 2014