公开(公告)号：US20240389851A1

公开(公告)日：2024-11-28

申请号：US18795928

申请日：2024-08-06

Applicant: Alcon Inc.

Inventor： John Alfred Campin ,  Martin Gruendig ,  Christopher Sean Mudd ,  George Hunter Pettit ,  Peter Zieger

IPC: A61B3/10 ,  A61B3/14

Abstract: A method of verifying ophthalmic measurements includes obtaining, via an ophthalmic measurement device, a first measurement of at least one ophthalmic parameter over a first measurement area. The first measurement area corresponds to an unassisted visible area of a patient's eye. A second measurement of the at least one ophthalmic parameter over a second measurement area is obtained via the measurement device. The second measurement area corresponds to an assisted visible area of the patient's eye. The first measurement is compared to the second measurement. It is determined if the second measurement diverges from the first measurement. Responsive to a determination that the second measurement diverges from the first measurement, an alert that the second measurement is inaccurate is generated. Responsive to a determination that the second measurement does not diverge from the first measurement, the second measurement is accepted as accurate.

公开(公告)号：US20230119409A1

公开(公告)日：2023-04-20

申请号：US17945884

申请日：2022-09-15

Applicant: Alcon Inc.

Inventor： Peter Zieger ,  Tillmann Wieland ,  Martin Gründig

IPC: A61B3/00 ,  A61B3/103 ,  A61B3/15

Abstract: The present disclosure provides a non-invasive technique to determine a true set of refractive indices of a patient's eye in order to generate an accurate model of the patient's eye. Certain aspects provide a system for generating a three-dimensional reconstruction model of a patient's eye. The system includes an imaging device configured to generate first and second measurements of a patient's eye at first and second angles relative to a line of sight of the patient's eye. The system includes an image processor configured to generate a first and second plurality of models of the patient's eye based on applying a plurality of sets of refractive indices to the first and second measurements; identify a first model from the first plurality of models that is congruent with a second model from the second plurality of models; and determine a set of refractive indices associated with the first and second models.

公开(公告)号：US20230010561A1

公开(公告)日：2023-01-12

申请号：US17810698

申请日：2022-07-05

Applicant: Alcon Inc.

Inventor： Judith Durá Díez ,  Horia Grecu ,  John Alfred Campin ,  George Hunter Pettit ,  Malgorzata Lukasik ,  Peter Zieger

IPC: G16H50/20 ,  A61B3/113 ,  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：US20220331092A1

公开(公告)日：2022-10-20

申请号：US17722921

申请日：2022-04-18

Applicant: Alcon Inc.

Inventor： John Alfred Campin ,  Horia Grecu ,  George Hunter Pettit ,  Mark Andrew Zielke ,  Peter Zieger

IPC: A61F2/16 ,  A61B3/00 ,  A61B3/10 ,  A61B3/107

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.

公开(公告)号：US11071453B2

公开(公告)日：2021-07-27

申请号：US16428492

申请日：2019-05-31

Applicant: ALCON INC.

Inventor： Peter Zieger ,  Martin Gruendig ,  Sascha Birkner

IPC: A61B3/15 ,  A61B3/00

Abstract: Disclosed are systems and methods for aligning an ophthalmic device with respect to an eye of a patient. In one disclosure, the system may include an ophthalmic device with an on-axis and an off-axis. The system may include an on-axis illuminator that emits light that is reflected by the eye of the patient to form an on-axis reflection having a center. The system may include an on-axis camera pointed along the on-axis. The system may include an off-axis illuminator that emits light that is reflected by the eye to form an off-axis reflection having a center. The system may include an off-axis camera pointed along the off-axis. The ophthalmic device may be operable to be aligned with respect to the eye of the patient when the on-axis is substantially normal to the center of the on-axis reflection and the off-axis is substantially normal to the center of the off-axis reflection.