The present disclosure relates to trial scleral lenses, and the resulting scleral lenses, designed for the asymmetric shape of the sclera and/or its chiral properties. In some embodiments, the scleral lenses are also designed for the specific asymmetry associated with different scleral diameters. In addition, as discussed herein, the scleral shape can vary with different conditions of the eye. By designing a set of trial scleral lenses that takes into account these different asymmetric properties of the sclera, a clinician can be more efficient, fitting more eyes with fewer subsequent modifications. The resulting lenses will also achieve a better fit.

Disclosed are lenses and methods for verifying a lens with an induced aperture. The lenses can have a geometry that, among other things, maintains a centered position about a wearer's eye to prevent more than a permissible amount of movement of the lens relative to the eye. Further disclosed is a method for verifying the power profiles used with the lens, and a lens that can have a single power profile for a wide range of presbyopia.

A method for fitting contact lenses. More specifically, methods of fitting scleral or corneo-scleral lenses utilizing data or patterns observed on a corneal topography examination to improve the fit of scleral lenses or corneo-scleral lenses. The method may use quadrant specific fitting set lenses or regular toricity in unusual portions of the lens to define which patients may most benefit from such lenses.

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.

Apparatuses and methods for multistage molding of contact lenses containing low oxygen permeable components or oxygen impermeable components. Components may be embedded within a contact lens by forming a device on a polymer substrate, molding a spacer onto a male mold, bonding the device to the spacer, removing the polymer substrate, and molding the remainder of the contact lens.

Provided is An orthokeratological contact lens having an inner profile intended to be placed on the corneal surface of an eye and modify the thicknesses of its epithelium to correct refractive defects. The inner profile comprises a disc shaped central curve, at least one annular reverse curve being connected annularly to the central curve and at least one annular outgoing curve tangentially connected to the at least one annular reverse curve at a circumferential connection line, so defining at least one circumferential reshaping area comprising each portion of said annular reverse curve and said annular outgoing curve adjacent to the circumferential connection line, the circumferential reshaping area being suitable for contacting the corneal surface and applying a determined annular pressure on the periphery of the cornea for reshaping the epithelium.

A method for preventing or limiting the progression the myopia includes: providing a soft contact lens. The contact lens includes: a solid polymeric component, which is provided for conferring shape and structure on the contact lens and a liquid component which is distributed in the solid component, and which comprises tyrosine, at a concentration between 1 and 200 mg/l. The method further includes putting the soft contact lens on an eye of a patient so as to apply the compound on the eye.

Apparatuses and methods for multistage molding of contact lenses containing low oxygen permeable components or oxygen impermeable components. Components may be embedded within a contact lens by forming a device on a polymer substrate, molding a spacer onto a male mold, bonding the device to the spacer, removing the polymer substrate, and molding the remainder of the contact lens.

A molded contact lens comprising a stiffer optic zone relative to the peripheral zone of the contact lens provides an optical element for correcting astigmatism without the need for or substantially minimizing the need for the correction of rotational misalignment. The higher elastic modulus optic zone vaults over the cornea thereby allowing a tear lens to form. The tear lens follows or assumes the shape of the back surface of the contact lens. The combination of the tear lens and the optical zone provide an optical element for correction of refractive error.

A system of contact lenses includes at least two contact lenses, each lens having a visual correction for a non-rotationally symmetric eye aberration. Each lens has a different level or degree of a stabilization that is characterized by a thickness differential between a thickness of a stabilization zone and a thickness of a non-stabilization zone.