Method and apparatus for determining the location of the ocular pivot point

US8840247B2 · kind B2 · utility

Assignee

• Carl Zeiss Vision GmbH · DE

Inventors

• Timo Kratzer · Aalen, DE
• Jesús-Miguel Cabeza-Guillén · Aalen, DE
• Gerhard Kelch · Aalen, DE

Key dates

• Filing date: Aug 26, 2011
• Grant date: Sep 23, 2014
• Expiry date: Mar 3, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C7/027
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye (10) of a test person. In the method, the mean curvature (KH) of the cornea (14) of the eye (10) is determined. The mean phase error (PF) of the eye (10) is determined as is the eye length (LA) from the mean curvature (KH) and the mean phase error (PF). The location of the ocular pivot point (ADL) is determined from the eye length (LA).