Patents Assigned to WaveTec Vision Systems, Inc.
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Patent number: 9622655Abstract: An ophthalmic method for determining relationships for calculating intraocular lens (IOL) power correction values is disclosed. The method may involve obtaining estimates of the postoperative optical power of a plurality of eyes undergoing IOL implant surgery. Measurements of the postoperative optical power and of one or more characteristics (e.g., axial length) of the eyes can also be obtained. The eyes can be separated into groups based upon their axial lengths. For each of the groups, a mathematical relationship can be determined for calculating IOL power correction values based on the measured characteristics. The mathematical relationship can reduce prediction error for the respective eyes in each group when applied to the corresponding estimates of the postoperative optical power. Methods and systems are also disclosed for using the IOL power correction values.Type: GrantFiled: October 9, 2014Date of Patent: April 18, 2017Assignee: WaveTec Vision Systems, Inc.Inventors: Edwin Jay Sarver, Thomas D. Padrick
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Patent number: 9603516Abstract: 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.Type: GrantFiled: November 3, 2014Date of Patent: March 28, 2017Assignee: WaveTec Vision Systems, Inc.Inventors: Edwin Jay Sarver, Thomas D. Padrick, Max Hall
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Patent number: 9554697Abstract: 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.Type: GrantFiled: June 30, 2014Date of Patent: January 31, 2017Assignee: WaveTec Vision Systems, Inc.Inventors: Thomas D. Padrick, Jack T. Holladay
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Patent number: 9498325Abstract: Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL.Type: GrantFiled: March 4, 2016Date of Patent: November 22, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Stefano Salvati, Cesare Tanassi, Gianluigi Meneghini, Renato Frison, Walter Zanette
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Patent number: 9445890Abstract: Apparatus for performing intraocular implant surgery, including surgical apparatus for performing intraocular implant surgery, an autorefraction device associated with the surgical apparatus, wherein the autorefraction device is configured to perform autorefraction on the aphakic eye to provide one or more aphakic refraction measurements, and a processor connected to the autorefraction device, wherein the processor is configured to process the aphakic refraction measurements and provide the user of the apparatus with information regarding the power of the intraocular lens.Type: GrantFiled: December 5, 2013Date of Patent: September 20, 2016Assignee: WaveTec Vision Systems, Inc.Inventor: Tsontcho Ianchulev
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Patent number: 9420949Abstract: A wavefront sensor is integrated with a surgical microscope for allowing a doctor to make repeated wavefront measurements of a patient's eye while the patient remains on an operating table in the surgical position. The device includes a wavefront sensor optically aligned with a surgical microscope such that their fields of view at least partially overlap. The inclusion of lightweight, compact diffractive optical components in the wavefront sensor allows the integrated device to be supported on a balancing mechanism above a patient's head during a surgical procedure. As a result, the need to reposition the device and/or the patient between measuring optical properties of the eye and performing surgical procedures on the eye is eliminated. Many surgical procedures may be improved or enhanced using the integrated device, including but not limited to cataract surgery, Conductive Keratoplasty, Lasik surgery, and corneal corrective surgery.Type: GrantFiled: July 14, 2015Date of Patent: August 23, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Anthony Y. Van Heugten, Daniel S. Durrie
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Patent number: 9339180Abstract: An ophthalmic optical power measurement device can include a light source configured to direct an input beam of light into the eye of a patient. The ophthalmic optical power measurement device can also include an aperture configured to receive an output beam that consists of light from the input beam that scatters from a location on the retina of the eye and exits through the pupil of the eye. The ophthalmic optical power measurement device can also include a detector configured to receive the output beam after it has passed through the aperture. A processor can be configured to determine the size of a spot created by the output beam on the detector, and to determine the optical power of the eye based upon the size of the spot.Type: GrantFiled: June 1, 2015Date of Patent: May 17, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Richard J. Michaels, Aric K. Plumley
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Patent number: 9307904Abstract: 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.Type: GrantFiled: October 4, 2013Date of Patent: April 12, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Thomas D. Padrick, Jack T. Holladay, Dan Bao Tran, Aric K. Plumley, Richard J. Michaels, Jeff Padgett
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Patent number: 9301677Abstract: Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL.Type: GrantFiled: June 2, 2014Date of Patent: April 5, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Stefano Salvati, Cesare Tanassi, Gianluigi Meneghini, Renato Frison, Walter Zanette
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Patent number: 9295381Abstract: The present invention relates to a wavefront sensor using a pair of screens, each having a two-dimensional array of circular apertures, to achieve Moiré effects, and its use to measure the slope of a wavefront.Type: GrantFiled: November 20, 2013Date of Patent: March 29, 2016Assignee: WaveTec Vision Systems, Inc.Inventor: Anthony Y. Van Heugten
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Patent number: 9259149Abstract: 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.Type: GrantFiled: September 27, 2013Date of Patent: February 16, 2016Assignee: WaveTec Vision Systems, Inc.Inventors: Jack T. Holladay, Thomas D. Padrick, Richard J. Michaels
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Patent number: 9168127Abstract: Apparatus for performing intraocular implant surgery, including surgical apparatus for performing intraocular implant surgery, an autorefraction device associated with the surgical apparatus, wherein the autorefraction device is configured to perform autorefraction on the aphakic eye to provide one or more aphakic refraction measurements, and a processor connected to the autorefraction device, wherein the processor is configured to process the aphakic refraction measurements and provide the user of the apparatus with information regarding the power of the intraocular lens.Type: GrantFiled: October 16, 2009Date of Patent: October 27, 2015Assignee: WaveTec Vision Systems, Inc.Inventor: Tsontcho Ianchulev
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Patent number: 9107612Abstract: A wavefront sensor is integrated with a surgical microscope for allowing a doctor to make repeated wavefront measurements of a patient's eye while the patient remains on an operating table in the surgical position. The device includes a wavefront sensor optically aligned with a surgical microscope such that their fields of view at least partially overlap. The inclusion of lightweight, compact diffractive optical components in the wavefront sensor allows the integrated device to be supported on a balancing mechanism above a patient's head during a surgical procedure. As a result, the need to reposition the device and/or the patient between measuring optical properties of the eye and performing surgical procedures on the eye is eliminated. Many surgical procedures may be improved or enhanced using the integrated device, including but not limited to cataract surgery, Conductive Keratoplasty, Lasik surgery, and corneal corrective surgery.Type: GrantFiled: March 12, 2013Date of Patent: August 18, 2015Assignee: WaveTec Vision Systems, Inc.Inventors: Anthony Y. Van Heugten, Daniel S. Durrie
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Patent number: 9072462Abstract: An ophthalmic optical power measurement device can include a light source configured to direct an input beam of light into the eye of a patient. The ophthalmic optical power measurement device can also include an aperture configured to receive an output beam that consists of light from the input beam that scatters from a location on the retina of the eye and exits through the pupil of the eye. The ophthalmic optical power measurement device can also include a detector configured to receive the output beam after it has passed through the aperture. A processor can be configured to determine the size of a spot created by the output beam on the detector, and to determine the optical power of the eye based upon the size of the spot.Type: GrantFiled: March 12, 2013Date of Patent: July 7, 2015Assignee: WaveTec Vision Systems, Inc.Inventors: Richard J. Michaels, Aric K. Plumley
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Publication number: 20150092159Abstract: Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL.Type: ApplicationFiled: June 2, 2014Publication date: April 2, 2015Applicant: WAVETEC VISION SYSTEMS, INC.Inventors: Stefano Salvati, Cesare Tanassi, Gianluigi Meneghini, Renato Frison, Walter Zanette
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Patent number: 8876290Abstract: 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.Type: GrantFiled: July 2, 2010Date of Patent: November 4, 2014Assignee: Wavetec Vision Systems, Inc.Inventors: Edwin Jay Sarver, Thomas D. Padrick, Max Hall
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Publication number: 20140313487Abstract: The present invention relates to a wavefront sensor using a pair of screens, each having a two-dimensional array of circular apertures, to achieve Moiré effects, and its use to measure the slope of a wavefront.Type: ApplicationFiled: November 20, 2013Publication date: October 23, 2014Applicant: WaveTec Vision Systems, Inc.Inventor: Anthony Y. Van Heugten
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Publication number: 20140249624Abstract: Apparatus for performing intraocular implant surgery, including surgical apparatus for performing intraocular implant surgery, an autorefraction device associated with the surgical apparatus, wherein the autorefraction device is configured to perform autorefraction on the aphakic eye to provide one or more aphakic refraction measurements, and a processor connected to the autorefraction device, wherein the processor is configured to process the aphakic refraction measurements and provide the user of the apparatus with information regarding the power of the intraocular lens.Type: ApplicationFiled: December 5, 2013Publication date: September 4, 2014Applicant: WaveTec Vision Systems, Inc.Inventor: Tsontcho Ianchulev
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Patent number: 8764187Abstract: 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.Type: GrantFiled: July 13, 2010Date of Patent: July 1, 2014Assignee: Wavetec Vision Systems, Inc.Inventors: Thomas D. Padrick, Jack T. Holladay
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Publication number: 20140132931Abstract: 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.Type: ApplicationFiled: September 27, 2013Publication date: May 15, 2014Applicant: WaveTec Vision Systems, Inc.Inventors: Jack T. Holladay, Thomas D. Padrick, Richard J. Michaels