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1. (WO2001034311) SURFACE TREATMENT OF RIGID GAS PERMEABLE CONTACT LENSES

Pub. No.:    WO/2001/034311    International Application No.:    PCT/US2000/030044
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Tue Oct 31 00:59:59 CET 2000
IPC: G02B 1/04
Applicants: BAUSCH & LOMB INCORPORATED
Inventors: SIMPSON, Lisa
HEILER, David, J.
Title: SURFACE TREATMENT OF RIGID GAS PERMEABLE CONTACT LENSES
Abstract:
The present invention provides an optically clear, hydrophilic coating upon the surface of a rigid gas permeable contact lens by treating the surface of the contact lens with a strong caustic agent and subsequently sonicating the lens in an aqueous solution containing a surface-protective agent.