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US 9,753,187 B2Granted
Low hydrous soft ophthalmic lens and method for manufacturing the same
AssigneeToray Industries, Inc.
InventorsRumiko Kitagawa, Masataka Nakamura, Satoru Ogasahara
Life of this patent
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Abstract
Provided are a low hydrous soft ophthalmic lens that can remarkably reduce or avoid a phenomenon in which a lens sticks to a cornea when worn and can reduce a decrease in the performance of a coating layer when rubbing the low hydrous soft ophthalmic lens for cleaning and a method for manufacturing the same. The low hydrous soft ophthalmic lens has a layer formed of a hydrophilic polymer on at least part of the surface of a base material containing a polysiloxane compound, and at least part of the inside of the layer is cross-linked.
Claims8
A low hydrous soft ophthalmic lens comprising:
- a base material;
- and
- a layer formed of a hydrophilic polymer on at least part of a surface of the base material, at least part of inside of the layer being cross-linked,
- wherein the low hydrous soft ophthalmic lens has a water content of less than 1% by mass.
1 more element
Dependencies are inferred from the claim text.