Abstract: Aspects of the disclosure provide for a method of creating a lens. Examples of the method include identifying a limbal zone of the eye, determining a back optic zone within the limbal zone, determining a front optic zone based at least partially on the limbal zone, computing a lens surface of the lens based at least partially on the limbal zone, the back optic zone, and the front optic zone, de-centering at least one of the back optic zone or the front optic zone from a visual axis or a spindle axis of the lens.

Abstract: Aspects of the disclosure provide for a method of designing a lens. Examples of the method include determining a central optic zone of the lens, determining a transition zone of the lens disposed about the central optic zone, determining a landing zone of the lens disposed about the transition zone, and determining an edge lift zone of the lens disposed about the landing zone. Examples of the landing zone of the lens comprise a temporal radius, a nasal radius, a vertical radius, and an inferior radius each with respect to a common point, where at least one of the temporal radius, the nasal radius, the vertical radius, or the inferior radius is not equidistant from the common point with respect to a remainder of the from the common point with respect the a remainder of the temporal radius, the nasal radius, the vertical radius, and the inferior radius.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: Aspects of the disclosure provide for a method of designing a lens. Examples of the method include determining a central optic zone of the lens, determining a transition zone of the lens disposed about the central optic zone, determining a landing zone of the lens disposed about the transition zone, and determining an edge lift zone of the lens disposed about the landing zone. Examples of the landing zone of the lens comprise a temporal radius, a nasal radius, a vertical radius, and an inferior radius each with respect to a common point, where at least one of the temporal radius, the nasal radius, the vertical radius, or the inferior radius is not equidistant from the common point with respect to a remainder of the from the common point with respect the a remainder of the temporal radius, the nasal radius, the vertical radius, and the inferior radius.

Abstract: Aspects of the disclosure provide for a method of creating a lens. Examples of the method include identifying a limbal zone of the eye, determining a back optic zone within the limbal zone, determining a front optic zone based at least partially on the limbal zone, computing a lens surface of the lens based at least partially on the limbal zone, the back optic zone, and the front optic zone, de-centering at least one of the back optic zone or the front optic zone from a visual axis or a spindle axis of the lens.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: A method of obtaining an impression of an eye, the method comprises preparing an impression material, contacting the impression material with an eye of a subject, obtaining an impression of the eye on the impression material, creating an indication of the orientation of the impression with respect to the eye, and removing the impression material from the eye. The impression can be used in a method of manufacturing a lens for an eye that comprises receiving one or more data files comprising a back lens surface calculation and a front lens surface calculation, forming a back lens surface from a lens blank based on the back lens surface calculation, forming a front lens surface from the lens blank based on the front lens surface calculation, and forming one or more asymmetric features in the back lens surface based on the back lens surface calculation.

Abstract: A method of obtaining an impression of an eye, the method comprises preparing an impression material, contacting the impression material with an eye of a subject, obtaining an impression of the eye on the impression material, creating an indication of the orientation of the impression with respect to the eye, and removing the impression material from the eye. The impression can be used in a method of manufacturing a lens for an eye that comprises receiving one or more data files comprising a back lens surface calculation and a front lens surface calculation, forming a back lens surface from a lens blank based on the back lens surface calculation, forming a front lens surface from the lens blank based on the front lens surface calculation, and forming one or more asymmetric features in the back lens surface based on the back lens surface calculation.