Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording medium
US-11980416-B2 · May 14, 2024 · US
Systems and methods for enhanced accuracy in OCT imaging of the cornea
US9101294B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9101294-B2 |
| Application number | US-201313744102-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 17, 2013 |
| Priority date | Jan 19, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Systems and methods for enhanced accuracy in optical coherence tomography imaging of the cornea are presented, including approaches for more accurate corneal surface modeling, pachymetry maps, keratometric values, and corneal power. These methods involve new scan patterns, an eye tracking mechanism for transverse motion feedback, and advanced motion correction algorithms. In one embodiment the methods comprise acquiring a first sparse set of data, using that data to create a corneal surface model, and then using the model to register a second set of denser data acquisition. This second set of data is used to create a more accurate, motion-corrected model of the cornea, from which pachymetry maps, keratometric values, and corneal power information can be generated. In addition, methods are presented for determining simulated keratometry values from optical coherence tomography data, and for better tracking and registration by using both rotation about three axes and the corneal apex.
First claim
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We claim: 1. A method for measuring the cornea of the eye with an optical coherence tomography system (OCT), said method comprising: collecting a first set of OCT data over a series of transverse locations on the cornea of the eye within a time short enough to avoid any significant motion of the cornea; processing the data collected in the first data set to generate a model of the cornea; collecting a second set of OCT data over a series of transverse locations on the cornea o…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- A61B3/102Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
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- What does patent US9101294B2 cover?
- Systems and methods for enhanced accuracy in optical coherence tomography imaging of the cornea are presented, including approaches for more accurate corneal surface modeling, pachymetry maps, keratometric values, and corneal power. These methods involve new scan patterns, an eye tracking mechanism for transverse motion feedback, and advanced motion correction algorithms. In one embodiment the …
- Who is the assignee on this patent?
- Zeiss Carl Meditec Inc
- What technology area does this patent fall under?
- Primary CPC classification A61B3/102. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).