公开(公告)号：WO2022157605A1

公开(公告)日：2022-07-28

申请号：PCT/IB2022/050257

申请日：2022-01-13

Applicant: ALCON INC.

Inventor： PETTIT, George Hunter ,  NEKRASSOV, Daniil ,  ZIEGER, Peter ,  GRÜNDIG, Martin ,  GRECU, Horia ,  ZIELKE, Mark Andrew ,  CAMPIN, John Alfred

IPC: A61B3/10 ,  A61B3/00 ,  A61B3/107 ,  G16H50/20 ,  G16H50/50

Abstract: An ophthalmic system for generating an ocular model of an eye includes an optical coherence tomography (OCT) device, an aberrometer, and a computer. The OCT device detects OCT light reflected from the eye. The aberrometer detects aberrometer light reflected from the eye. The computer generates the ocular model of the eye according to the reflected OCT light. The ocular model includes parameters describing the eye. The parameters include lens parameters that describe the lens of the eye. The computer determines an OCT-based wavefront according to the ocular model, determines an aberrometer-based wavefront according to the reflected aberrometer light, and compares the OCT-based and the aberrometer-based wavefronts. If the wavefronts differ beyond a predefined tolerance, the computer adjusts one or more values assigned to the parameters until the wavefronts satisfy the predefined tolerance. At least one adjusted value is assigned to a lens parameter.

公开(公告)号：WO2022090873A1

公开(公告)日：2022-05-05

申请号：PCT/IB2021/059670

申请日：2021-10-20

Applicant: ALCON INC.

Inventor： ZIEGER, Peter ,  GRECU, Horia

IPC: A61B3/107

Abstract: In certain embodiments, an ophthalmic system for determining the topography of the anterior surface of the cornea of an eye comprises an illuminator, a camera, and a computer. The illuminator illuminates the anterior surface of the cornea of the eye with a Placido pattern. The Placido pattern comprises a plurality of rings. A ring of the plurality of rings has a distinguishing feature that distinguishes the ring from an adjacent ring. The anterior surface of the cornea reflects the Placido pattern. The camera captures an image of the reflected Placido pattern. The computer: analyzes the image to detect a distortion of the ring that indicates an anomaly of the anterior surface of the cornea; identifies the ring of the plurality of rings according to the distinguishing feature of the ring; and generates the topography of the surface of the cornea that includes the anomaly.

公开(公告)号：WO2022167932A1

公开(公告)日：2022-08-11

申请号：PCT/IB2022/050861

申请日：2022-02-01

Applicant: ALCON INC.

Inventor： ZIEGER, Peter ,  GRÜNDIG, Martin ,  NEKRASSOV, Daniil ,  GRECU, Horia

IPC: A61B3/107 ,  A61B3/13 ,  A61B3/00

Abstract: An ophthalmic system for generating a topography of an anterior corneal surface of an eye comprises an illuminator, cameras, and a computer. The illuminator illuminates the anterior corneal surface of the eye with a Placido pattern, which reflects the Placido pattern. Each camera generates an image of the reflected Placido pattern to yield multiple images. At least one camera is oriented off an axis of the eye. For each image, the computer calculates a curvature value for each data point of the image, where a data point corresponds to a surface point of the anterior corneal surface. The calculations yield curvature values for each surface point. The computer determines the curvature at each surface point from one or more curvature values for the surface point. The computer generates the topography of the anterior corneal surface from the curvatures at the surface points of the anterior corneal surface.

公开(公告)号：WO2023281400A1

公开(公告)日：2023-01-12

申请号：PCT/IB2022/056220

申请日：2022-07-05

Applicant: ALCON INC.

Inventor： DURÁ DÍEZ, Judith ,  GRECU, Horia ,  CAMPIN, John Alfred ,  PETTIT, George Hunter ,  LUKASIK, Malgorzata ,  ZIEGER, Peter

IPC: A61B3/00

Abstract: An ophthalmic system for analyzing data for a procedure includes a computer. The computer includes a memory, an interface device, and one or more processors that execute software. The memory stores procedure information for the procedure, and the interface device receives input and provide output. The one or more processors identify information from the procedure information that is crucial for the procedure, determine one or more recommendations to address the crucial information, and provide the crucial information and the one or more recommendations via the interface device.

公开(公告)号：WO2022224126A1

公开(公告)日：2022-10-27

申请号：PCT/IB2022/053612

申请日：2022-04-18

Applicant: ALCON INC.

Inventor： CAMPIN, John Alfred ,  GRECU, Horia ,  PETTIT, George Hunter ,  ZIELKE, Mark Andrew ,  ZIEGER, Peter

IPC: A61F2/16

Abstract: Certain aspects of the present disclosure provide techniques for performing surgical ophthalmic procedures, such as cataract surgeries. An example method generally includes generating, using one or more measurement devices, one or more data points associated with measurements of one or more anatomical parameters for an eye to be treated. Using one or more trained machine learning models, one or more recommendations are generated including one or more IOL parameters for the IOL to be used in the cataract surgery based, at least in part, on the one or more data points. The machine learning models are trained based on at least one historical data set of data points associated with measurements of anatomical parameters mapped to treatment data and treatment result data associated with each historical patient. The one or more IOL parameters comprise one or more of an IOL type, an IOL power, or IOL placement information for implanting the IOL in the eye.