A method for fabricating a contact lens by an additive fabrication process includes joining a first portion of the contact lens with a second portion of the contact lens and joining a third portion of the contact lens with at least one of the first portion and the second portion of the contact lens. A center of a correction region of the contact lens may be offset from a center of the contact lens. The first portion and the second portion may include a first material and a second material at different ratios. The first portion and the second portion of the contact lens may include a first material and a second material having different sizes.

A meniscus shaped lens module comprises one or more structures that decrease an amount of pressure or force to move one or more surfaces of the lens module and increase a separation distance of anterior and posterior surfaces of the module in order to provide an increase in optical power. A lens structure of the module comprises one or more of a pattern of a surface of a central chamber, a meniscus, a reduced diameter or a soft material in order to provide increased amounts of curvature of an outer contact lens surface with decreased amounts of pressure. The pattern can be formed in one or more of many ways, and may comprise one or more of folds, patterning, bellows or concertinaed surface of an optically transmissive material having a substantially uniform thickness such as a sheet of a membrane material.

The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.

Contact lenses that have an ion-impermeable portion and an ion-permeable portion that are able to move on the eye without binding to the eye are described. The contact lenses exhibit an average ionoflux transmittance of at least 1.34×10.sup.−4 mm/min. One or more electronic components can be included in the contact lenses. Methods of making the contact lenses are also described.

A contact lens with a sensor region are described. The contact allows for normal vision and a concentric ring around the vision area of the lens includes one or more sensors for detecting changes in the interocular pressure of the eye. The data may be scanned using a camera, or in some embodiments, the data may be transmitted using a micro antenna in the sensing region. The data may be analyzed using a software application on a cell phone or other computing device.

The invention is generally related to a method for producing, in a relatively efficient and consistent manner, embedded or hybrid silicone hydrogel contact lenses, and also to unprocessed embedded or hybrid silicone hydrogel contact lenses, according to conventional cast-molding technologies. A method of the invention involve use of a polymeric non-reactive diluent in preparing a polymerizable composition for forming the silicone hydrogel material of the unprocessed embedded or hybrid silicone hydrogel contact lens, which is cast-molded with a lens mold. The unprocessed cast-molded embedded or hybrid silicone hydrogel contact lens has no or a minimal water-swelling degree, so that lens distortion or delamination during the hydration of the unprocessed embedded or hybrid silicone hydrogel contact lens.

The invention is generally related to an embedded silicone hydrogel contact lens comprising a silicone hydrogel material and a hydrophobic insert. The silicone hydrogel material comprises repeating units of at least one first polysiloxane vinylic crosslinker comprising hydrophilized siloxane units each having one methyl substituent and one organic radical including at least one H-bond donor (e.g., hydroxyl groups), wherein the content of said at least one H-bond donor is at least 0.8 meq/g relative to the molecular weight of said at least one first polysiloxane vinylic crosslinker. The hydrophobic insert is composed of a crosslinked polymeric material comprising at least 40% by mole of acrylic repeating units and at least 6% by mole of repeating units of at least one vinylic crosslinking agent. The embedded silicone hydrogel is not susceptible to delamination.

Contact lenses that have an ion-impermeable portion and an ion-permeable portion that are able to move on the eye without binding to the eye are described. The contact lenses exhibit an average ionoflux transmittance of at least 1.34×10.sup.−4 mm/min. One or more electronic components can be included in the contact lenses. Methods of making the contact lenses are also described.

Designs, apparatus and methods to form contact lenses with aesthetic elements on demand are described. In some examples, the method of defining the aesthetic aspect includes printing patterns. Other examples include photochromic or thermochromic elements which may provide patterning on exposure to electromagnetic irradiation. In some further examples, energized components in contact lenses may provide aesthetic characteristics.

The present invention relates to copolymers made from a polymerization mixture comprising (a) one or more polymerizable monomers, which monomers are characterized as having at least one vinylic group and not containing an amino acid residue, (b) one or more not-functionalized side chain-linked amino acids, (c) one or more functionalized side chain-linked amino acids, (d) a free radical initiator and, optionally, (e) a chain-transfer-agent. It also relates to block copolymers comprising the same monomers. The invention also encompasses silicone hydrogel contact lenses coated with or comprising the latter copolymers and block copolymers as well methods for introducing the copolymers and block copolymers into silicone hydrogel contact lenses.