Patents by Inventor Leonard Zheleznyak

Leonard Zheleznyak 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).

  • Patent number: 11911261
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 27, 2024
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 11896478
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 13, 2024
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20240032789
    Abstract: Scopes for viewing interior chambers of the eye include a refractive hydrogel polymer button formed by femtosecond laser micro-machining. The refractive button is sandwiched between two transparent plates and mounted on an ocular adapted to be placed directly on the cornea. A physician may look directly through the scope to see anatomical structures at very steep angles within the eye, such as to function as a gonioscope when viewing the anterior chamber angle. The scopes can be modified for viewing a variety of anatomical structures within the eye, and can also be used in conjunction with treatments such as by guiding injections or laser procedures. The refractive button has at least one region with a wavefront pattern of linear steps formed therein. Multiple regions with different wavefront patterns provide the physician with greater flexibility. The refractive button may be rotated relative to the ocular to further customize the image.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 1, 2024
    Applicant: Clerio Vision, Inc.
    Inventors: Leonard Zheleznyak, John Weberg
  • Patent number: 11833081
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or ocular tissues is performed to address various types of vision correction, and the laser induced changes to the refractive index avoid ablation and removal of the optical polymer materials while minimizing scattering losses.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: December 5, 2023
    Assignees: University of Rochester, Clerio Vision, Inc., Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Leonard Zheleznyak, Corey Leeson, Jonathan D. Ellis, Theodore Foos, Sam C. Butler
  • Publication number: 20230367138
    Abstract: Example embodiments include methods for forming a subsurface optical structure in an ophthalmic lens. The method may include defining a phase-wrapped wavefront for causing the ophthalmic lens to diffract light to multiple focal points; defining a spherical wavefront configured for inducing a spherical aberration in the ophthalmic lens; and generating, based on the wavefronts, energy output parameters for forming a subsurface optical structure in the ophthalmic lens using an energy source, wherein the subsurface optical structure is configured to correct presbyopia by providing extended depth of focus that produces increased intermediate vision quality. Also disclosed are ophthalmic lenses with Fresnel rings that effect a phase-wrapped wavefront with a spherical aberration.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 16, 2023
    Applicant: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Publication number: 20230329910
    Abstract: Calibration of laser pulse powers used to form subsurface optical structures in an ophthalmic lens is accomplished via generation of a feedback signal indicative of pulse energy absorption. A system for forming subsurface optical structures within an ophthalmic lens includes a laser pulse source, a laser pulse power control assembly, a scanning assembly, a detector, and a control unit. The laser pulse power control assembly is operable to selectively control an energy of respective laser pulses. The detector is configured to generate a feedback signal indicative of an energy absorbed by the ophthalmic lens from a first laser pulse. The control unit is configured to control operation of the laser pulse power control assembly to selectively control an energy of a second laser pulse based on a selected energy of the second laser pulse, a selected energy of the first laser pulse, and the feedback signal.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Applicant: Clerio Vision, Inc.
    Inventors: Leonard Zheleznyak, Sam Butler, Steven Cox, Aaron Michalko
  • Publication number: 20230296919
    Abstract: Ophthalmic lenses include one or more annular sectors configured to provide one or more off-axis corrections to light incident on the peripheral retina to inhibit myopia progression. An ophthalmic lens includes a central zone and an annular zone that includes an annular sector configured to provide a myopia inhibiting wavefront correction to light from a peripheral vision region of a peripheral visual field of the use. The first annular sector is configured so that light from the peripheral vision region passes through the first annular sector to form an image of the peripheral vision region on an annular region of the peripheral retina. The myopia inhibiting wavefront correction reduces a circumferential-to-radial aspect ratio of the image of the first peripheral vision region.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 21, 2023
    Applicant: Clerio Vision, Inc.
    Inventors: Leonard Zheleznyak, Gustavo A. Gandara-Montano
  • Publication number: 20230280600
    Abstract: A ophthalmic lens for inhibiting progression of myopia includes a central zone and an annular zone. The annular zone includes subsurface optical elements formed via laser-induced changes in refractive index of a material forming the annular zone. The subsurface optical elements are configured to modify distribution of light to the peripheral retina of a user so as to inhibit progression of myopia.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Applicant: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Patent number: 11747650
    Abstract: Example embodiments include methods for forming a subsurface optical structure in an ophthalmic lens. The method may include defining a phase-wrapped wavefront for causing the ophthalmic lens to diffract light to multiple focal points; defining a spherical wavefront configured for inducing a spherical aberration in the ophthalmic lens; and generating, based on the wavefronts, energy output parameters for forming a subsurface optical structure in the ophthalmic lens using an energy source, wherein the subsurface optical structure is configured to correct presbyopia by providing extended depth of focus that produces increased intermediate vision quality. Also disclosed are ophthalmic lenses with Fresnel rings that effect a phase-wrapped wavefront with a spherical aberration.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: September 5, 2023
    Assignee: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Patent number: 11693257
    Abstract: A ophthalmic lens for inhibiting progression of myopia includes a central zone and an annular zone. The annular zone includes subsurface optical elements formed via laser-induced changes in refractive index of a material forming the annular zone. The subsurface optical elements are configured to modify distribution of light to the peripheral retina of a user so as to inhibit progression of myopia.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: July 4, 2023
    Assignee: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Publication number: 20230157812
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: January 11, 2023
    Publication date: May 25, 2023
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 11612479
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: March 28, 2023
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20220339036
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical tissues is performed in combination with corneal lenticular surgery to achieve overall desired vision corrections.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 27, 2022
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 11382795
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical tissues is performed in combination with corneal lenticular surgery to achieve overall desired vision corrections.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: July 12, 2022
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 11369515
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or ocular tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: June 28, 2022
    Assignees: University of Rochester, Clerio Vision, Inc.
    Inventors: Leonard Zheleznyak, Cory Leeson, Jonathan D. Ellis, Theodore Foos, Sam C. Butler
  • Publication number: 20220011593
    Abstract: Example embodiments include methods for forming a subsurface optical structure in an ophthalmic lens. The method may include defining a phase-wrapped wavefront for causing the ophthalmic lens to diffract light to multiple focal points; defining a spherical wavefront configured for inducing a spherical aberration in the ophthalmic lens; and generating, based on the wavefronts, energy output parameters for forming a subsurface optical structure in the ophthalmic lens using an energy source, wherein the subsurface optical structure is configured to correct presbyopia by providing extended depth of focus that produces increased intermediate vision quality. Also disclosed are ophthalmic lenses with Fresnel rings that effect a phase-wrapped wavefront with a spherical aberration.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 13, 2022
    Applicant: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Publication number: 20210378508
    Abstract: Embodiments include methods and systems forming optical structures in an ophthalmic lens for improving a patient's vision by accessing a prescription for the patient; generating a variable wavefront based on the prescription; phase wrapping the first variable wavefront, wherein phase wrapping the first variable wavefront includes collapsing the first variable wavefront to a phase-wrapped wavefront having a predetermined phase height; and generating, based on the phase-wrapped wavefront, energy output parameters for forming an optical structure in the ophthalmic lens using an energy source.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Applicant: Clerio Vision, Inc.
    Inventor: Leonard Zheleznyak
  • Publication number: 20210196520
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or ocular tissues is performed to address various types of vision correction, and the laser induced changes to the refractive index avoid ablation and removal of the optical polymer materials while minimizing scattering losses.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 1, 2021
    Inventors: Leonard Zheleznyak, Corey Leeson, Jonathan D. Ellis, Theodore Foos, Sam C. Butler
  • Publication number: 20210177576
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Publication number: 20210177577
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Leonard Zheleznyak, Scott Catlin