Prosthetic lenses and methods of making the same

A method of designing a lens, the method comprising:

• scanning an impression of an eye, thereby creating an eye scan file;
• storing a plurality of the eye scan files in a database;
• analyzing the plurality of eye scan files to determine one or more average parameters of the plurality of eyes, wherein the one or more average parameters comprise at least one non-symmetric feature of an eye;
• designing a lens design using the one or more average parameters of the plurality of eyes;
• and
• instructing a manufacturing apparatus to fabricate the lens by manipulating a lens material according to the lens design,
• wherein designing the lens comprises computing a back lens surface according to the one or more average parameters of the plurality of eyes.

A method of determining a lens design, the method comprising:

• scanning an impression of an eye;
• identifying a limbal zone of the eye;
• determining an optic zone within the limbal zone;
• determining a transition zone adjacent to the optic zone;
• determining a landing zone adjacent to the transition zone;
• determining an edge lift zone adjacent to the landing zone;
• and
• computing a front lens surface of a lens based on the optic zone, the transition zone, the landing zone, and the edge lift zone.

A method of designing a lens, comprising;

• scanning an impression of an eye;
• identifying a limbal zone of the eye;
• determining at least one zone within or adjacent to the limbal zone;
• and
• computing a back lens surface of a lens basal on the limbal zone and the at least one zone to provide a corneal clearance from the eye of 100 microns to 400 microns.

A method of determining a lens design, the method comprising:

• scanning an impression of an eye in three dimensions;
• identifying a limbal zone of the eye;
• determining an optic zone within the limbal zone;
• determining a transition zone adjacent to the optic zone;
• determining a landing zone adjacent to die transition zone;
• determining an edge lift zone adjacent to the landing zone;
• and
• computing a back lens surface of a lens to provide a corneal clearance from the eye of 100 microns to 400 microns based on die optic zone, the transition zone, the landing zone, and the edge lift zone.

A method of determining a lens design, the method comprising;

• scanning an impression of an eye;
• identifying a limbal zone of the eye;
• determining an optic zone within the limbal zone;
• determining at least one zone adjacent to the optic zone;
• computing a back lens surface of a lens based on the optic zone and the at least one zone, wherein the back lens surface has a corneal clearance from the eye of 100 microns to 400 microns;
• and
• computing a front lens surface based on the back lens surface.