There is provided a contact lens (60) which is produced by cast molding. The cast molding is achieved by the use of an anterior face mold insert (30) which has a cap (24) with a domed surface (26) and a body (10). The domed surface has provision for a distance vision segment (31) and a reading segment (32) separated by a demarcation (33). Further, the cap (24) has a cutaway portion (20) for producing a lower ledge and the body (10) has a projection (18) for producing a lower truncation in the resultant lens. Means is also described for forming a posterior face of the contact lens (60).

Methods of forming an ophthalmic element via generating a map of data values associated with pixels included in an energy transmissibility pattern. Data values correspond with an amount of energy transmissible through the optical element at a pixel location. The data values may be converted to additive manufacturing printhead control commands. A first print pattern of polymerizable mixture is emitted as droplets from a manufacturing printhead. The first print pattern of polymerizable mixture corresponding with the map of data values associated with pixels included in an energy transmissibility pattern. At least a portion of the droplets are received on a receiving surface.

A molding apparatus for molding an optical article has a reactor vessel having an interior cavity configured to receive a quantity of a flowable forming material, a mold assembly defining a mold cavity therein, a diaphragm valve disposed between the reactor vessel and the mold assembly, and a tubing connecting the diaphragm valve to the reactor vessel and the mold assembly. The diaphragm valve is operable between an open configuration to permit a flow of the flowable forming material through the tubing from the reactor vessel to the mold cavity and a closed configuration to block the flow of the flowable forming material from the reactor vessel to the mold cavity. A filter is disposed between the reactor vessel and the diaphragm valve. The tubing has an upstream tubing section between the reactor vessel and the filter and a downstream tubing section between the filter and the diaphragm valve.

The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.

The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.

There is provided a lens including a first curved surface and a second curved surface. The first curved surface and the second curved surface have different focal distances and are arranged interlacedly along a radial direction of the lens.

There is provided a contact lens (60) which is produced by cast moulding. The cast moulding is achieved by the use of an anterior face mould insert (30) which has a cap (24) with a domed surface (26) and a body (10). The domed surface has provision for a distance vision segment (31) and a reading segment (32) separated by a demarcation (33). Further, the cap (24) has a cutaway portion (20) for producing a lower ledge and the body (10) has a projection (18) for producing a lower truncation in the resultant lens. Means is also described for forming a posterior face of the contact lens (60).

This invention discloses a media substrate for incorporation into ophthalmic lenses that has been formed by the stacking of multiple functionalized layers. Additionally, methods and apparatus for providing a stacked functional layer insert for incorporation into an ophthalmic lens are also provided. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the lens includes at least one stacked functional layer insert portion.

Methods of forming a lens include forming components on a lower substrate. The components are sealed on the lower substrate with a sealing layer. An upper substrate is formed over the sealing layer. The lower substrate is polished to a lower lens curvature.

Lenses and methods for adjusting the focus of a lens include dividing multiple light sensors in a lens into four quadrants. A position of the lens relative to occlusion along a top and bottom edge of the lens is determined based on lengths of bit sequences from light sensors in each of the four quadrants. An optimal focal length for the lens is determined based on the position of the lens. The focal length of the lens is adjusted to match the optimal focal length.