METHOD FOR PRODUCING MPS-COMPATIBLE WATER GRADIENT CONTACT LENSES

METHOD FOR PRODUCING MPS-COMPATIBLE WATER GRADIENT CONTACT LENSES

The invention is related to contact lenses that not only comprise the much desired water gradient structural configurations, but also have a minimized uptakes of polycationic antimicrobials and a long-lasting surface hydrophilicity and wettability even after going through a 30-days lens care regime....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHIANG, Chung-Yuan, TALLAU, Kelly Kayi, GOVAN, Richard, MINICK, Kasey Jon, SAMUEL, Newton T, QIU, Yongxing, PRUITT, John Dallas, MCCOLLUM, Matthew
Format: Patent
Sprache:eng ; hun
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:The invention is related to contact lenses that not only comprise the much desired water gradient structural configurations, but also have a minimized uptakes of polycationic antimicrobials and a long-lasting surface hydrophilicity and wettability even after going through a 30-days lens care regime. Because of the water gradient structural configuration and a relatively-thick, extremely-soft and water-rich hydrogel surface layer, a contact lens of the invention can provide superior wearing comfort. Further, a contact lens of the invention is compatible with multipurpose lens care solutions present in the market and can endure the harsh lens care handling conditions (e.g., digital rubbings, accidental inversion of contact lenses, etc.) encountered in a daily lens care regime. As such, they are suitable to be used as weekly- or monthly-disposable water gradient contact lenses.