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公开(公告)号：US20250009223A1
公开(公告)日：2025-01-09
申请号：US18775624
申请日：2024-07-17
Applicant: Alcon Inc.
Inventor： John Alfred Campin , Martin Gründig , Armin Haupt , George Hunter Pettit , Mark Andrew Zielke
Abstract: A method for assessing a lens capsule stability condition in an eye of a human patient includes directing electromagnetic energy in a predetermined spectrum onto a pupil of the eye, via an energy source, concurrently subsequent to a movement of the eye causing eye saccades to occur therein. The method also includes acquiring images of the eye indicative of the eye saccades using an image capture device, and computing, via the ECU, a motion curve of the lens capsule using the images. Additionally, the method includes extracting time-normalized lens capsule oscillation traces based on the motion curve via the ECU, and then model-fitting the lens capsule oscillation traces via the ECU to thereby assess the lens capsule instability condition. An automated system for performing an embodiment of the method is also disclosed herein, including the energy source, image capture device, and ECU.
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公开(公告)号：US12076085B2
公开(公告)日：2024-09-03
申请号：US17113611
申请日：2020-12-07
Applicant: Alcon Inc.
Inventor： John Alfred Campin , Martin Gruendig , Christopher Sean Mudd , George Hunter Pettit , Peter Zieger
CPC classification number: A61B3/101 , A61B3/1005 , 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.
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公开(公告)号：US20220225869A1
公开(公告)日：2022-07-21
申请号：US17574667
申请日：2022-01-13
Applicant: Alcon Inc.
Inventor： George Hunter Pettit , Daniil Nekrassov , Peter Zieger , Martin Gründig , Horia Grecu , Mark Andrew Zielke , John Alfred Campin
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.
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公开(公告)号：US12089894B2
公开(公告)日：2024-09-17
申请号：US17501894
申请日：2021-10-14
Applicant: ALCON INC.
Inventor： George Hunter Pettit , Mark Andrew Zielke , Victor Manuel Hernandez , Philip Matthew McCulloch
CPC classification number: A61B3/0025 , A61B3/0008 , A61B3/103 , A61B3/112
Abstract: A system for predicting post-operative vignetting in an eye of a subject includes a controller having a processor and a tangible, non-transitory memory on which instructions are recorded. The controller is in communication with a diagnostic module adapted to store pre-operative anatomic data of the eye as an eye model. The system includes a projection module and a ray tracing module selectively executable by the controller. The projection module is adapted to determine imputed post-operative variables of the eye based at least partially on the pre-operative anatomic data and the intraocular lens. The ray tracing module is adapted to calculate propagation of light through the eye. The ray tracing module is executed to determine a light distribution for respective visual field angles across a predefined field of view. The controller is configured to determine one or more post-operative vignetting parameters based at least partially on the light distribution.
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公开(公告)号：US12070270B2
公开(公告)日：2024-08-27
申请号：US17507659
申请日：2021-10-21
Applicant: Alcon Inc.
Inventor： John Alfred Campin , Martin Gründig , Armin Haupt , George Hunter Pettit , Mark Andrew Zielke
CPC classification number: A61B3/113 , A61B3/0025
Abstract: A method for assessing a lens capsule stability condition in an eye of a human patient includes directing electromagnetic energy in a predetermined spectrum onto a pupil of the eye, via an energy source, concurrently subsequent to a movement of the eye causing eye saccades to occur therein. The method also includes acquiring images of the eye indicative of the eye saccades using an image capture device, and computing, via the ECU, a motion curve of the lens capsule using the images. Additionally, the method includes extracting time-normalized lens capsule oscillation traces based on the motion curve via the ECU, and then model-fitting the lens capsule oscillation traces via the ECU to thereby assess the lens capsule instability condition. An automated system for performing an embodiment of the method is also disclosed herein, including the energy source, image capture device, and ECU.
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Patent Agency Ranking
公开(公告)号：US20220183550A1
公开(公告)日：2022-06-16
申请号：US17501929
申请日：2021-10-14
Applicant: Alcon Inc.
Inventor： John Alfred Campin , Martin Gründig , Daniil Nekrassov , George Hunter Pettit , Peter Zieger
IPC: A61B3/10
Abstract: In certain embodiments, an ophthalmic system for assessing a tear film of an eye comprises measuring devices and a computer. The measuring devices detect light reflected from the eye, where an ocular surface of the eye comprises the tear film, and generate data from the reflected light that describes the eye. The computer aligns the data corresponding to the same location for a plurality of locations, assesses the data at the locations to detect one or more abnormalities of the tear film, and determines a tear film description from the assessment of the data at the locations.
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公开(公告)号：US20230133327A1
公开(公告)日：2023-05-04
申请号：US17937172
申请日：2022-09-30
Applicant: Alcon Inc.
Inventor： Tobias Jura Rapoport , Pooria Sharif Kashani , Carlos Gerena , Sang Yeop Lee , George Hunter Pettit , John Alfred Campin
Abstract: Particular embodiments disclosed herein provide an apparatus and corresponding methods for guiding ophthalmic surgery and enabling a surgeon to switch, after initiating surgery, between a primary treatment plan and one or more backup plans. Switching between a first plan and a second plan may be performed while omitting presentation of steps of the second plan compatible with implemented steps of the first plan. A treatment plan may include guides imposed on a live video of an eye of the patient that has been registered with respect to a pre-operative image. When switching between plans, initiating registration with respect to the pre-operative image is omitted. A treatment plan may define steps for placement of an IOL such as incision, rhexis, LRI, crystalline lens removal, placement of an IOL, alignment of a toric IOL, and post-operative data collection. Upon switching between first and second, previously implemented compatible steps are omitted from presentation of the second plan.
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公开(公告)号：US20230031527A1
公开(公告)日：2023-02-02
申请号：US17870304
申请日：2022-07-21
Applicant: Alcon Inc.
Inventor： Pooria Sharif Kashani , George Hunter Pettit , Brant Gillen
IPC: A61B3/10
Abstract: Certain aspects of the present disclosure provide an ophthalmic measurement device. The device comprises one or more ophthalmic measurement features, configured to generate a measurement for an anatomical characteristic of an eye of a patient, and a user interface, configured to enable a medical practitioner to interact with the ophthalmic measurement device and a memory. The device also comprises a hardware processor configured to: determine whether the measurement satisfies measurement criteria based on comparing the measurement with the measurement criteria, upon determining that the measurement does not satisfy the measurement criteria, cause the one or more ophthalmic measurement features to generate a new measurement for the anatomical characteristic, determine whether the new measurement satisfies the measurement criteria based on comparing the new measurement with the measurement criteria, and, upon determining that the new measurement satisfies the measurement criteria, cause the user interface to display the new measurement.
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公开(公告)号：US20230008122A1
公开(公告)日：2023-01-12
申请号：US17855383
申请日：2022-06-30
Applicant: Alcon Inc.
Inventor： John Alfred Campin , Martin Gründig , Victor Manuel Hernandez , George Hunter Pettit , Mark Andrew Zielke , Daniil Nekrassov
Abstract: A system for selecting a preferred intraocular lens for implantation into an eye includes a controller having a processor and a tangible, non-transitory memory. The controller is configured to obtain diagnostic data of the eye, and obtain historical data composed of historical sets of patient data. The controller is configured to analyze individual risk factors based on the diagnostic data and obtain a weighted combination of the individual risk factors. A respective satisfaction metric for the plurality of intraocular lenses is generated based on the historical data. A preferred intraocular lens may be selected based in part on the respective satisfaction metric and the weighted combination. A visual simulation for each of the plurality of intraocular lenses may be performed, based in part on the diagnostic data. The visual simulation may incorporate an impact of the tear film data.
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公开(公告)号：US20220031512A1
公开(公告)日：2022-02-03
申请号：US17380992
申请日：2021-07-20
Applicant: Alcon Inc.
Inventor： David Thoe , Brant Gillen , George Hunter Pettit , Marcos H. Zamorano , Keith Watanabe , Ramesh Sarangapani , Sinchan Bhattacharya , Joseph Weatherbee
Abstract: Systems and methods for assisting in the removal of a cataract from an eye can include obtaining pre-operative data for the eye, the pre-operative data including imaging data associated with the lens of the eye, determining a lens density map based on the imaging data associated with the lens, and generating laser fragmentation patterns for a laser fragmentation procedure based on the lens density map.
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