CONTACT LENSES WITH SURFACES HAVING DIFFERENT SOFTNESS
The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
06.05.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel layer and a posterior outer hydrogel layer. A contact lens of the invention is characterized by having a difference in surface softness between its posterior (BC) and anterior (FC) surfaces. |
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Bibliography: | Application Number: US202017087963 |