Thomas Douglas Padrick

US Patent:

8333474, Dec 18, 2012

Filed:

Sep 9, 2008

Appl. No.:

12/206974

Inventors:

Richard J. Michaels - Irvine CA, US
Max Hall - Corona CA, US
Diego Cueto - Monarch Beach CA, US
T. Scott Rowe - Dana Point CA, US
Thomas Padrick - Seattle WA, US

Assignee:

WaveTec Vision Systems, Inc. - Aliso Viejo CA

International Classification:

A61B 3/14

US Classification:

351208, 351246, 351205

Abstract:

An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area.

US Patent:

8545023, Oct 1, 2013

Filed:

Jul 13, 2010

Appl. No.:

12/835665

Inventors:

Jack T. Holladay - Bellaire TX, US
Thomas D. Padrick - Seattle WA, US
Richard J. Michaels - Irvine CA, US

Assignee:

WaveTec Vision Systems, Inc. - Aliso Viejo CA

International Classification:

A61B 3/10
A61B 3/14
A61B 3/00

US Classification:

351221, 351206, 351208, 351210, 351246

Abstract:

An ophthalmic apparatus for measuring spatial distances within a patient's eye is disclosed. The apparatus can be used to measure, for example, the capsular bag depth in an aphakic eye. The spatial measurement system can direct laser light into a patient's eye so that a portion of the light is scattered by the capsular bag. The scattered light can be directed to a detector where spots can be formed corresponding to the locations on the capsular bag from which the light was scattered. The distance from the cornea to the capsular bag can be determined based, for example, at least in part on the distance between the spots formed on the detector. In some embodiments, the apparatus can include a surgical microscope and/or a wavefront aberrometer. In some embodiments, an alignment system can be used to precisely position the apparatus relative to the patient's eye. The ophthalmic apparatus can be used for variety of ophthalmic procedures, such as predicting the postoperative position of an intraocular lens (IOL) and determining appropriate optical power for the IOL.

US Patent:

8550624, Oct 8, 2013

Filed:

Nov 6, 2009

Appl. No.:

12/614344

Inventors:

Thomas D. Padrick - Seattle WA, US
Jack T. Holladay - Bellaire TX, US
Dan Bao Tran - Long Beach CA, US
Aric K. Plumley - Huntington Beach CA, US
Richard J. Michaels - Irvine CA, US
Jeff Padgett - Long Beach CA, US

Assignee:

Wavetec Vision Systems, Inc. - Aliso Viejo CA

International Classification:

A61B 3/10
A61B 3/00

US Classification:

351205, 351200, 351211, 351221

Abstract:

An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.

US Patent:

20110007270, Jan 13, 2011

Filed:

Jul 2, 2010

Appl. No.:

12/830221

Inventors:

Edwin Jay Sarver - Carbondale IL, US
Thomas D. Padrick - Seattle WA, US
Max Hall - Corona CA, US

International Classification:

A61B 3/14

US Classification:

351206, 351246

Abstract:

A system and method for determining an objective quality metric for image data collected by a wavefront aberrometer. The method may include quantifying a plurality of characteristics of the image data and calculating the objective quality metric based on the quantified characteristics of the image data. The objective quality metric can be a weighted sum of the quantified characteristics of the image data. The weightings for the weighted sum can be determined based on subjective quality metrics assigned to a set of training image data by a human expert.

US Patent:

20110015541, Jan 20, 2011

Filed:

Jul 13, 2010

Appl. No.:

12/835668

Inventors:

Thomas D. Padrick - Seattle WA, US
Jack T. Holladay - Bellaire TX, US

Assignee:

WaveTec Vision Systems, Inc. - Aliso Viejo CA

International Classification:

A61B 5/00

US Classification:

600558

Abstract:

An ophthalmic method for determining a relationship between aphakic ocular power and estimated effective lens position (ELP) of an intraocular lens (IOL) to be implanted in a patient's eye. The method can be used to determine an estimate of the ELP of an IOL given the aphakic ocular power of the patient's eye, for example, without measurement of the corneal curvature or axial length of the patient's eye. The estimate of ELP can then be used to determine a suitable value of optical power for the IOL to be implanted in the patient's eye.

US Patent:

20130070203, Mar 21, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/620593

Inventors:

Richard J. Michaels - Irvine CA, US
Max Hall - Corona CA, US
Diego Cueto - Monarch Beach CA, US
T. Scott Rowe - Dana Point CA, US
Thomas Padrick - Seattle WA, US

Assignee:

WAVETEC VISION SYSTEMS, INC. - Aliso Viejo CA

International Classification:

A61B 3/103
A61B 3/15

US Classification:

351208, 351246

Abstract:

An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area.

US Patent:

20210093180, Apr 1, 2021

Filed:

Sep 25, 2020

Appl. No.:

17/033296

Inventors:

- Fribourg, CH
Thomas Padrick - Seattle WA, US
Edwin Jay Sarver - Cookeville TN, US

International Classification:

A61B 3/00
G16H 50/20
G16H 50/50
G16H 40/63
G06N 3/08
G05B 19/042
A61B 3/10
G01M 11/02

Abstract:

Techniques are disclosed for systems and methods to provide improved ocular aberrometry. An ocular aberrometry system includes a wavefront sensor configured to provide wavefront sensor data associated with an optical target monitored by the ocular aberrometry system and a logic device configured to communicate with the wavefront sensor. The logic device is configured to determine a complex analysis engine for the ocular aberrometry system based, at least in part, on an aberrometer model and/or an eye model associated with the ocular aberrometry system, wherein the aberrometer model and the eye model are based, at least in part, on wavefront sensor data provided by the wavefront sensor. The logic device is also configured to generate a compact analysis engine for the ocular aberrometry system based, at least in part, on the determined complex analysis engine.

US Patent:

20210093181, Apr 1, 2021

Filed:

Sep 25, 2020

Appl. No.:

17/033382

Inventors:

- Fribourg, CH
Thomas Padrick - Seattle WA, US
Edwin Jay Sarver - Cookeville TN, US

International Classification:

A61B 3/00
A61B 3/10
A61B 3/14
G06T 7/00
G16H 40/67
G16H 50/30
G16H 15/00
G16H 50/20
G06F 17/11
G01M 11/02

Abstract:

Techniques are disclosed for systems and methods to provide improved ocular aberrometry recovery. An ocular aberrometry system includes a wavefront sensor configured to provide wavefront sensor data associated with an optical target monitored by the ocular aberrometry system and a logic device configured to communicate with the wavefront sensor. The logic device is configured to receive ocular aberrometry output data including at least the wavefront sensor data provided by the wavefront sensor, identify imaging artifact induced singularities in the received ocular aberrometry output data, determine corrected aberrometry output data based, at least in part, on the identified singularities and the received ocular aberrometry output data, and generate user feedback corresponding to the received ocular aberrometry output data based, at least in part, on the corrected aberrometry output data.