Abstract: The present invention relates to a process comprising the steps of reacting in the presence of a hydrosilylation catalyst, a first reaction mixture comprising a free radical reactive compound and a silicon containing compound to form a silicon substituted glyceryl (meth)acrylate.

Abstract: Ophthalmic compositions and methods of preparing such compositions are disclosed.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as release aids.

Abstract: The present invention discloses improved methods and systems for inspecting an ophthalmic lens by exposing the ophthalmic lens to a processing aid solution that includes RCO2CH2CH20(CH2CH2O)xCH2CH2O2CR where R comprises (equals) at least one of: CF3CF2(CF2)xCH2; CH3CH2(CH2)xCH2; and Ry[Si(CH3)2o]x(CH2)3, while the lens is contained in a ophthalmic lens receptacle, in order to facilitate the removal of bubbles and center the lens in the ophthalmic lens receptacle with a reduced incidence of ophthalmic lenses being folded over on themselves. The decreased incidence of bubbles and proper positioning of the ophthalmic lens in turn facilitates accurate inspection.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: The present invention provides methods and apparatus useful for facilitating one or more of the removal of unreacted components and diluents from an article fashioned from silicone hydrogel and release of the article from a mold part to which the article is adhered.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids.

Abstract: The present invention relates to polymer compositions formed from a reactive mixture comprising at least one substantially non-reactive prepolymer comprising silicone containing groups and compatibilizing groups and a hydrophilic component comprising at least one monomer capable of hydrogen bonding with said prepolymer.

Abstract: This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.

Abstract: Various non-limiting embodiments of the present disclosure relate to ophthalmic devices comprising photochromic materials comprising a reactive substituent. For example, the present disclosure contemplates ophthalmic devices comprising photochromic materials, such as photochromic naphthopyrans and indeno-fused naphthopyrans having a reactive substituent comprising a reactive moiety linked to the photochromic naphthopyran by one or more linking groups. In certain non-limiting embodiments, the reactive moiety comprises a polymerizable moiety. In other non-limiting embodiments, the reactive moiety comprises a nucleophilic moiety. Other non-limiting embodiments of the present disclosure relate to methods of making the photochromic ophthalmic device, wherein the photochromic ophthalmic devices comprise the photochromic naphthopyrans described herein.

Abstract: Various non-limiting embodiments disclosed herein relate to ophthalmic devices comprising photochromic materials having extended pi-conjugated systems. For example, various non-limiting embodiments disclosed herein provide a photochromic material, such as an indeno-fused naphthopyran, which comprises a group that extends the pi-conjugated system of the indeno-fused naphthopyran bonded at the 11-position of thereof. Further, the photochromic materials according to certain non-limiting embodiments disclosed herein may display hyperchromic absorption of electromagnetic radiation as compared to conventional photochromic materials and/or may have a closed-form absorption spectrum that is bathochromically shifted as compared to conventional photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Abstract: The present invention relates to a process comprising exposing a polymerizable mixture comprising at least one lens forming component, at least one thermal initiator, at least one photoinitiator and at least one photochromic compound to device forming conditions comprising heat and actinic radiation to form a photochromic ophthalmic device.

Abstract: The invention provides hydrogels for use in the production of biomedical devices. In particular, the invention provides hydrogels formed from siloxane prepolymers and a hydrophilic monomer, which hydrogels are optically transparent.