Prosthetic lenses and methods of making the same

摘要

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.

主权项

1. 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; computing a back lens surface of a lens based on the optic zone, the transition zone, the landing zone, and the edge lift zone; and instructing a manufacturing apparatus to fabricate the lens by manipulating a lens material according to the lens design.