A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.

A computer-implemented method for identifying relevant individual parameters of at least one eye of a spectacle wearer for the calculation or optimization of an ophthalmic lens for the at least one eye of the spectacle wearer, including: providing individual data on properties of the at least one eye of the spectacle wearer; constructing an individual eye model by defining a set of parameters of the individual eye model; and determining a probability distribution of values of the parameters of the individual eye model on the basis of the individual data.

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

A method for manufacturing a spectacle lens according to at least one data set of edging data and a computer program product with instructions for performing the method are disclosed. A spectacle lens blank, semifinished spectacle lens product, or a finished spectacle lens product is inspected for defects and compared to a data set to determine if it can be manufactured into an edged finished spectacle lens that fits into a specific spectacle frame such that the defect is not present in the edged finished spectacle lens.

A device for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject includes a flexible lens that fits on the eye and changes curvature in response to a change in curvature of the eye. A microchannel disposed in or on the lens has one or more ends that are open to the atmosphere and an indicator solution is disposed in a portion of the 5 microchannel. The microchannel exhibits a change in volume in response to a change in curvature of the lens, which results in a change in position of the indicator solution in the microchannel. The change in position of the indicator solution in the microchannel is indicative of a change in IOP. The change in position of the indicator solution may be detected in digital images of the lens taken with a camera of a mobile electronic device such 0 as a smartphone or a camera worn by the subject.

A binocular visual function measurement method includes a visual target presentation step of presenting a right eye image to be viewed by the right eye of a measurement subject and a left eye image to be viewed by the left eye of the measurement subject to the subject in a space where real space information is blocked out; a presentation control step of changing positions where the right and left eye images are presented, relative to each other; a timing detection step of detecting a timing at which the measurement subject is unable to fuse the right and left eye images when the presentation positions are changed; and a parameter value calculation step of calculating a predetermined parameter value regarding a binocular visual function of the measurement subject based on a relationship between the relative positions of the right and left eye images when the timing is detected.

The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) and associated method for their design and use. The apparatus includes one or more optical zones, including an optical zone defined by a polynomial-based surface coincident at a plurality of meridians having distinct cylinder powers, wherein light incident to a given region of each of the plurality of meridians, and respective regions nearby, is directed to a given point of focus such that the regions nearby to the given region direct light to the given point of focus when the given meridian is rotationally offset from the given region, thereby establishing an extended band of operation, and wherein each of the plurality of meridians is uniformly arranged on the optical zone for a same given added power (in diopters) up to 1.0D (diopters).

A suction pump orthokeratology lens includes an outer surface and an inner surface. The inner surface includes a base curve, a reverse curve, and a stable curve. When the user wears the orthokeratology lens, the base curve generates a pressing force to the eye and causes the cornea to deform in the direction of the reverse curve. Since the stable curve is provided with at least one contact point which forms a tiny suction force, the orthokeratology lens can also slide for shaping without injuring the cornea when the stable curve is in contact with the cornea. The invention draws the cornea to the position of the base curve and the reverse curve through tear exchange and suction pump and shapes the cornea according to the shape of the base curve. Therefore, the user can effectively shape the cornea and correct vision after wearing the suction pump orthokeratology lens.

A multi-curve multi-section alignment structure for an orthokeratology lens and a method thereof are disclosed. The orthokeratology lens includes a base curve formed on a central part of an inner surface thereof, and a reverse curve outwardly formed outside the base curve, an alignment curve outwardly formed outside the reverse curve and configured to align to a cornea of an eyeball, and a peripheral curve outwardly formed outside the alignment curve. The cornea has an alignment region contacting the alignment curve, and the alignment region is divided into sections, and the alignment curve includes alignment sections formed correspondingly in position to the sections and matching curvatures of the sections of the alignment region, so that the orthokeratology lens can be stably aligned with the eyeball, and when a wearer's eyelid is closed, the orthokeratology lens cannot decenter easily.

A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.