US Patent 7250197 Plasma treatment of contact lens and IOL

Intraocular lenses or contact lenses 20 are placed on a lower spindle 34 and held there by a vacuum in conduit 34. Noble and reactive gases 56, 58 are introduced and a voltage is applied across upper spindle 32 and lower spindle 34 to plasma treat one surface of the lens. The lens is transferred to the other spindle and the process is repeated.