Method for ascertaining physiologically correct biometric data of an eye

US12426778B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Holger Mäusezahl · Jena, DE
• Roland Bergner · Jena, DE
• Manfred Dick · Gefell, DE

Key dates

• Filing date: Aug 3, 2020
• Grant date: Sep 30, 2025
• Expiry date: Aug 16, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B3/14
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for collecting biometric measurement data of an eye on the basis of different measurement modalities, allowing for physiologically correct, representative, and robust biometric measurement data. In the method, the measurement data for individual measurement variables and the dynamic behavior of the eye are recorded continuously at the highest possible repetition rate over the measurement time. The individual phases of the dynamics of the eye which define the limits of the phase for stable vision are analyzed on the basis of the measurement values, and only the measurement data for the individual measurement variables are output which have been detected during the phase for stable vision. Although the proposed method is provided for collecting biometric measurement data in preparation for a cataract operation, the method can also be applied to other areas of ophthalmology to generate error-free measurement data or recordings of the eye.