Patents by Inventor Geun-Young Yoon
Geun-Young Yoon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9554889Abstract: Methods and systems for manufacturing a wavefront-guided scleral lens prosthetic device customized for an eye of a patient include obtaining a first scleral lens prosthetic device with a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone configured to align with the eye's sclera, collecting measurements of any offset and/or rotation of the first scleral lens prosthetic device relative to the eye's pupil and of any aberrations, particularly higher-order aberrations, generating a wavefront-guided profile from the measurements, and fabricating a second scleral lens prosthetic device with the profile on a surface of a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone customized to align with the eye's sclera.Type: GrantFiled: May 7, 2013Date of Patent: January 31, 2017Assignees: Boston Foundation for Sight, University of RochesterInventors: Lynette K. Johns, Geun-Young Yoon, Olga Tomashevskaya
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Publication number: 20130297015Abstract: Methods and systems for manufacturing a wavefront-guided scleral lens prosthetic device customized for an eye of a patient include obtaining a first scleral lens prosthetic device with a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone configured to align with the eye's sclera, collecting measurements of any offset and/or rotation of the first scleral lens prosthetic device relative to the eye's pupil and of any aberrations, particularly higher-order aberrations, generating a wavefront-guided profile from the measurements, and fabricating a second scleral lens prosthetic device with the profile on a surface of a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone customized to align with the eye's sclera.Type: ApplicationFiled: May 7, 2013Publication date: November 7, 2013Applicant: BOSTON FOUNDATION FOR SIGHTInventors: Lynette K. JOHNS, Geun-Young YOON, Olga TOMASHEVSKAYA
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Patent number: 6827444Abstract: A wavefront aberration of an eye is determined, e.g., in real time. The eye is illuminated, and the light reflected from the retina is converted into spots with a device such as a Hartmann-Shack detector. The displacement of each spot from where it would be in the absence of aberration allows calculation of the aberration. Each spot is located by an iterative technique in which a corresponding centroid is located in a box drawn on the image data, a smaller box is defined around the centroid, the centroid is located in the smaller box, and so on. The wavefront aberration is calculated from the centroid locations by using a matrix in which unusable data can be eliminated simply by eliminating rows of the matrix. Aberrations for different pupil sizes are handled in data taken for a single pupil size by renormalization.Type: GrantFiled: April 19, 2002Date of Patent: December 7, 2004Assignee: University of RochesterInventors: David R. Williams, William J. Vaughn, Benjamin D. Singer, Heidi Hofer, Geun-Young Yoon, Pablo Artal, Juan Luis Arag{dot over (o)}n, Pedro Prieto, Fernando Vargas
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Publication number: 20030086063Abstract: A wavefront aberration of an eye is determined, e.g., in real time. The eye is illuminated, and the light reflected from the retina is converted into spots with a device such as a Hartmann-Shack detector. The displacement of each spot from where it would be in the absence of aberration allows calculation of the aberration. Each spot is located by an iterative technique in which a corresponding centroid is located in a box drawn on the image data, a smaller box is defined around the centroid, the centroid is located in the smaller box, and so on. The wavefront aberration is calculated from the centroid locations by using a matrix in which unusable data can be eliminated simply by eliminating rows of the matrix. Aberrations for different pupil sizes are handled in data taken for a single pupil size by renormalization.Type: ApplicationFiled: April 19, 2002Publication date: May 8, 2003Inventors: David R. Williams, William J. Vaughn, Benjamin D. Singer, Heidi Hofer, Geun-Young Yoon, Pablo Artal, Juan Luis Aragon, Pedro Prieto, Fernando Vargas
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Patent number: 6338559Abstract: A method for improving the visual performance of a person involves correcting higher-order monochromatic aberrations in combination with the correction of chromatic aberration. Such correction results in a visual benefit greater than that realized by correcting only the higher-order monochromatic aberrations or the chromatic aberration alone. The higher-order monochromatic aberrations are corrected by introducing appropriate phase profiles to compensate for the wavefront aberrations of the eye. This compensation can be provided by contact lenses, IOLs, inlays and onlays having appropriate surface shapes or by corneal shaping achieved through refractive surgery or other techniques. Chromatic aberration can be corrected by spectral filtering or artificial apodization. An apodization filter is described that provides a non-uniform amplitude transmission across the pupil of the eye.Type: GrantFiled: April 28, 2000Date of Patent: January 15, 2002Assignee: University of RochesterInventors: David R. Williams, Geun-Young Yoon, Antonio Guirao
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Patent number: 6299311Abstract: A wavefront aberration of an eye is determined, e.g., in real time. The eye is illuminated, and the light reflected from the retina is converted into spots with a device such as a Hartmann-Shack detector. The displacement of each spot from where it would be in the absence of aberration allows calculation of the aberration. Each spot is located by an iterative technique in which a corresponding centroid is located in a box drawn on the image data, a smaller box is defined around the centroid, the centroid is located in the smaller box, and so on. The wavefront aberration is calculated from the centroid locations by using a matrix in which unusable data can be eliminated simply by eliminating rows of the matrix. Aberrations for different pupil sizes are handled in data taken for a single pupil size by renormalization.Type: GrantFiled: March 24, 2000Date of Patent: October 9, 2001Assignee: University of RochesterInventors: David R. Williams, William J. Vaughn, Benjamin D. Singer, Heidi Hofer, Geun-Young Yoon
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Patent number: 6264328Abstract: Wavefront aberrations in an eye are detected by illuminating the retina, receiving the light reflected by the retina and using a Hartmann-Shack detector or the like to detect the aberrations. The illuminating light is applied to the eye off of the optical axis of the eye. Light reflected from the cornea and light reflected from the retina travel in different directions. The former can be blocked with a stop, while the latter is passed to the detector.Type: GrantFiled: October 21, 1999Date of Patent: July 24, 2001Assignee: University of RochesterInventors: David R. Williams, Geun-Young Yoon
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Patent number: 6199986Abstract: A wavefront aberration of an eye is determined, e.g., in real time. The eye is illuminated, and the light reflected from the retina is converted into spots with a device such as a Hartmann-Shack detector. The displacement of each spot from where it would be in the absence of aberration allows calculation of the aberration. Each spot is located by an iterative technique in which a corresponding centroid is located in a box drawn on the image data, a smaller box is defined around the centroid, the centroid is located in the smaller box, and so on. The wavefront aberration is calculated from the centroid locations by using a matrix in which unusable data can be eliminated simply by eliminating rows of the matrix. Aberrations for different pupil sizes are handled in data taken for a single pupil size by renormalization.Type: GrantFiled: October 21, 1999Date of Patent: March 13, 2001Assignee: University of RochesterInventors: David R. Williams, William J. Vaughn, Benjamin D. Singer, Heidi Hofer, Geun-Young Yoon, Pablo Artal, Juan Luis Arag{dot over (o)}n, Pedro Prieto, Fernando Vargas