Patent · US Active

Method for determining corneal astigmatism using optical coherence tomography

US10182719B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Delbert Peter Andrews · Oberkochen, DE
Michael Stefan Rill · Jena, DE

Key dates

Filing date	Sep 26, 2014
Grant date	Jan 22, 2019
Priority date	—
Expiry date	Nov 14, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B3/117
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for detecting refractive errors in the eye that are attributable to a suboptimal surface shape of the front surface and/or rear surface of the cornea. An OCT volume scan and/or one or more OCT line scans of the front eye section are carried out; using the measured values, the front and rear surface of the cornea are detected by an edge detection process; the topography of the front and rear surface of the cornea are determined; and refractive errors are determined from said topographies.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.