Ophthalmologic laser system and operating method

US8597283B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Mark Bischoff · Jena, DE
• Manfred Dick · Gefell, DE
• Juergen Ledermann · Jena, DE

Key dates

• Filing date: Nov 4, 2009
• Grant date: Dec 3, 2013
• Expiry date: Mar 14, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2009/00897
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An ophthalmologic laser system and an operating method. The laser system includes a laser, a scanner unit, a focusing lens and a beam splitter that directs radiation that reaches the beam splitter from the direction of the area of examination through a confocal aperture orifice onto a detector. The invention also includes a control unit with which a cornea arranged in the examination area can be irradiated by the laser at illumination laser power and detection light can be registered by the detector. The cornea is scanned in three dimensions, in that the cornea is irradiated at multiple points and detection light is registered from there. Based on the detection light, a laser cut in the cornea is identified and the form and/or position of the laser cut calculated. The invention further relates to refractive laser surgery.