Presbyopia correction program

US8454167B2 · kind B2 · utility

Assignee

• WaveLight GmbH · DE

Inventors

• Theo Seiler · Monsheim, DE
• Tobias Lorenz Florian Koller · Bellinzona, CH

Key dates

• Filing date: Mar 28, 2011
• Grant date: Jun 4, 2013
• Expiry date: Mar 28, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2009/00895
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and methods for treating presbyopia are provided. In one embodiment, a system for photorefractive treatment of presbyopia includes a laser source configured for ablating corneal tissue and a control system in communication with the laser source and configured to control the laser source to ablate conical tissue of a patient to achieve a desired corneal shape. In some instances, the control system controls the laser source by calculating a global optimum regarding curvature and asphericity of the cornea. In some instances, control system controls the laser source by calculating a central steep island and calculating a curvature and asphericity for the rest of the cornea. In some embodiments, a laser source is controlled to ablate the cornea of the patient in accordance with a calculated shape profile to achieve a desired corneal shape.