System and method for designing scleral lenses
OwnerGregory Gemoulesinventor
Life of this patent
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Abstract
A system and method for designing scleral lenses includes a computer, a camera and a lathe connected by a network. The camera captures a set of sagittal images at each of a set of sagittal planes of an eye. A combined sagittal image is created from each set of sagittal images. A spline curve is defined for each combined sagittal image creating a set of spline curves. A set of back surface curves is created from the set of spline curves. A back lens surface is generated from the set of surface curves. A front lens surface is generated adjacent the back lens surface. A point cloud is generated from the back lens surface and the front lens surface. The point cloud is converted to a lens image. The lens is converted to a text file for use by the lathe to cut the scleral lens.
Claims19
A method implemented in a system comprising a computer connected to a camera and to a lathe, the method comprising:
- capturing, using the camera, a set of sagittal images of an eye of a patient;
- extracting, using the computer, a set of back surface curves from the set of sagittal images by creating a corresponding set of points for each sagittal image;
- combining, using the computer, all sets of points into a point cloud;
- creating, by the computer, a lens image from the point cloud;
- and
- cutting, using the lathe as instructed by the computer according to the lens image, a contact lens.
A system for cutting a scleral contact lens, comprising:
- a computer;
- a camera connected to the computer;
- a lathe connected to the computer;
- the computer including a processor and a non-transitory computer recordable storage medium storing program code which, when executed by the processor, performs a computer implemented method to command the lathe to cut the scleral contact lens, the program code comprising:
- program code for capturing, using the camera, a set of sagittal images of an eye of a patient;
- program code for extracting, using the computer, a set of back surface curves from the set of sagittal images by creating a corresponding set of points for each sagittal image;
- program code for combining all sets of points into a point cloud;
- program code for creating, by the computer, a lens image from the point cloud;
- and
- program code for cutting, using the lathe as instructed by the computer according to the lens image, a contact lens.
A method implemented in a system comprising a computer connected to a camera and to a lathe, the method comprising:
- capturing, using the camera, a set of sagittal images of an eye of a patient;
- combining the set of sagittal images into a combined sagittal image to create a best fit combined eye surface;
- thereafter creating, by the computer, a lens image using the set of back surface curves wherein creating the set of back surface curves is performed by processing the best fit combined eye surface;
- and
- cutting, using the lathe as instructed by the computer according to the lens image, a contact lens.
Dependencies are inferred from the claim text.