Dynamic contact lenses fabricated with a dynamic portion that extends outward from the peripheral portion are disclosed. When worn on an eye the dynamic portion forms a tear lens for correcting vision. The dynamic portion can also be configured to provide a dynamic tear lens that changes optical power with forces applied by eyelids. The dynamic portion can be configured to assume a conforming configuration and at least one non-conforming configuration, or can be configured to assume at least two non-conforming configurations. The dynamic contact lenses can be used for correcting vision such as correcting presbyopia.

Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.

A contact lens and a method of manufacturing the same are provided. The contact lens includes a contact lens body and a blue light blocking material covering the contact lens body. The blue light blocking material includes a plurality of metal particles dispersed on the contact lens body. The present invention includes compositions of at least one compound including metal ion with at least one or more reducing factors. The interactions between reducing factors endow contact lens body with homogeneous or pupil-regional preference of metal particles distribution with enhanced or decreased efficacy of blue light blocking. A further modification strengthens surface properties of contact lens including contact angle, water break-up time and long-term protein depositions.

The present disclosure relates to ophthalmic devices such as ophthalmic lenses. An ophthalmic device may comprise an ophthalmic lens for at least one of slowing, retarding or preventing myopia progression. The ophthalmic lens may comprise a center zone with a negative power for myopic vision correction; and at least one treatment zone surrounding the center zone, the at least one treatment zone having a power profile comprising an ADD power, the at least one treatment zone having a surface shape comprising a portion of a generally toroidal shape, wherein the at least one treatment zone is arranged as to form a continuous surface with the center zone.

Methods and apparatus to enhance levels of oxygen in tear fluid under a worn advanced contact lens are described. The advanced contact lens may include an insert which is impermeable to fluid flow across its body. The method of enhancement may include creating pores through the insert, creating channels in portions of the contact lens body, including layers of absorptive material, including devices to generate or release oxygen or means of moving tear fluid under the contact lens.

Methods and apparatus to enhance levels of oxygen in tear fluid under a worn advanced contact lens are described. The contact lens may include an encapsulated hard lens element which is impermeable to fluid flow across its body. The method of enhancement may include creating pores through the hard lens element, creating channels in portions of the contact lens body, including layers of absorptive material, and creating means of moving tear fluid under the contact lens.

According to the present invention, there is provided a contact lens assembly comprising a contact lens having an outer edge, a flash ring disposed around the outer edge of the contact lens and a connecting portion connecting the flash ring to the contact lens, wherein the thickness of the connecting portion is less than the thickness of the outer edge of the contact lens. There is also provided a contact lens assembly comprising a contact lens having an outer edge, a flash ring disposed around the outer edge of the contact lens, and a connecting portion connecting the flash ring to the contact lens wherein the mass of the flash ring is at least forty times greater than the mass of the contact lens, suitably at least sixty times greater than the mass of the contact lens. There is also provided a contact lens injection molding apparatus comprising first and second molding parts moveable relative to each other between a compressed and an uncompressed position, wherein in the compressed position, an outer edge of the first molding part is disposed 1 to 50 μm from an outer edge of the second molding part.

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.

Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.

The invention provides a contact lens manufacturing method comprising a process for removing unprocessed molded silicone hydrogel contact lenses from mold halves in a relatively efficient and consistent manner. A method of the invention comprises the combination of using a hydrophilic (meth)acrylamido monomer as one of major polymerizable components in a lens formulation for cast-molding of contact lenses, adding a post-curing treatment step which involves heating molds with molded lenses therewithin in an oven at a post-curing temperature higher than the curing temperature and under nitrogen gas flow at a higher flow rate, and using ultrasonic vibration energy for delensing. This method of the invention can be easily implemented in a production environment for enhancing the production yield.