Objective Type Patents (Class 351/205)
  • Patent number: 10022050
    Abstract: A terminal device to operate a plurality of ophthalmic apparatuses includes a communication unit to perform communication with the ophthalmic apparatuses, a selection receiving unit to receive a selection command to select at least one ophthalmic apparatus as an operation target to be operated from among the ophthalmic apparatuses, and a control unit to transmit a control signal to the operation target ophthalmic apparatus through the communication unit.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 17, 2018
    Assignee: NIDEK CO., LTD.
    Inventor: Naoki Isogai
  • Patent number: 10016131
    Abstract: The invention relates to an eye tracking system (10) and a method for operating an eye tracking system (10) for determining if one of a left and a right eye of a user is dominant, wherein at least one image of the left and the right eye of the user is captured (S30), based on the at least one image and according to a predefined accuracy function a left accuracy score for the left eye (S34a) and a right accuracy score for the right eye (S34c) is determined and it is determined if one of the left and the right eye of the user is dominant in dependency of at least the left and the right accuracy score (S36). Thereby user-specific properties relating to his eyes can be provided and considered when performing eye tracking so that the robustness and accuracy of eye tracking can be enhanced.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 10, 2018
    Assignee: SENSOMOTORIC INSTRUMENTS GESELLSCHAFT FUR INNOVATIVE SENSORIK MBH
    Inventors: Kun Liu, Walter Nistico, Hao Qin
  • Patent number: 9996938
    Abstract: A method of blink detection in a laser eye surgical system includes providing a topography measurement structure having a geometric marker. The method includes bringing the topography measurement structure into a position proximal to an eye such that light traveling from the geometric marker is capable of reflecting off a refractive structure of the eye of the patient, and also detecting the light reflected from the structure of the eye for a predetermined time period while the topography measurement structure is at the proximal position. The method further includes converting the light reflected from the surface of the eye into image data and analyzing the image data to determine whether light reflected from the geometric marker is present is in the reflected light, wherein if the geometric marker is determined not to be present, the patient is identified as having blinked during the predetermined time.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 12, 2018
    Assignee: Optimedica Corporation
    Inventor: Javier G. Gonzalez
  • Patent number: 9980637
    Abstract: An image processing apparatus includes a processing unit configured to perform, on a luminance distribution acquired in at least one direction crossing a vessel region in a fundus image of a subject's eye, a first smoothing operation for each first size and a second smoothing operation for each second size smaller than the first size; a first identifying unit configured to identify a position of a vascular wall in the fundus image on the basis of the luminance distribution obtained by performing the first smoothing operation; and a second identifying unit configured to identify positions of inner and outer boundaries of the vascular wall in the fundus image on the basis of the luminance distribution obtained by performing the second smoothing operation.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: May 29, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Imamura
  • Patent number: 9943226
    Abstract: A lens holder for holding a vitrectomy lens during a surgical procedure may include a support ring sized and shaped to receive a portion of the vitrectomy lens to provide visualization of a surgical site in an eye of the patient. The support ring may be configured to rest upon the eye of the patient during a surgical treatment procedure performed on the eye. The lens holder may also include a transparent, flexible membrane disposed along a bottom plane of the support ring and configured to conform to a surface feature on the eye. It may also include an overflow trough to control contact of a wetting agent with the eye.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: April 17, 2018
    Assignee: Novartis AG
    Inventor: Nicholas Max Gunn
  • Patent number: 9936874
    Abstract: An optical measurement apparatus includes: an emission section that emits light such that the light travels across an anterior chamber of an eyeball of a measurement subject; a light reception section that receives light that is emitted from the emission section and travels across the anterior chamber; and a positioning section that performs positioning of one of the emission section and the light reception section at a position where skin on a periphery of an inner canthus of the eyeball is squeezed into an eye socket accommodating the eyeball.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 10, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Saori Nishizaki, Taku Kinoshita, Kazutaka Takeda, Hideaki Ozawa, Kazuyuki Matsushita, Kohei Yukawa, Sho Kimura, Hideo Nakayama
  • Patent number: 9936868
    Abstract: A system for obtaining low-angle circumferential optical access to an eye of a subject. The system includes a light source to generate a beam of light; a beam steering mechanism to steer the beam of light a focusing lens to focus the beam of light; and a contact lens to direct the beam of light into the eye of the subject, the contact lens including a tapered reflective surface to direct the beam of light into the eye of the subject.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 10, 2018
    Assignee: Duke University
    Inventors: Joseph A. Izatt, Anthony N. Kuo, Ryan P. McNabb
  • Patent number: 9940512
    Abstract: A head mounted display (HMD) can include a memory, a camera, an image sensor unit configured to sense hand-drawn information via the camera, a display unit configured to display the sensed hand-drawn information or at least one of complete information including the sensed hand-drawn information, the sensed hand-drawn information being partial information, a communication unit, and a controller configured to display the at least one of complete information including the sensed hand-drawn information by accessing the memory or a server.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: April 10, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sihwa Park, Jihwan Kim
  • Patent number: 9936866
    Abstract: According to certain embodiments, a system comprises one or more memories and one or more processors. The one or more memories store optical data from an optical recorder comprising at least two optical data sets by: receiving a first optical data set of an eye with a pupil having a first pupil size; and receiving a second optical data set of the eye with the pupil having a second pupil size. The one or more processors determine a pseudo-rotation related to a pupil size change, receive a measured cyclotorsion, calculate an actual cyclotorsion from the measured cyclotorsion and the pseudo-rotation, and adjust a laser treatment according to the actual cyclotorsion.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 10, 2018
    Assignee: Novartis AG
    Inventors: Sissimos Lemonis, Mario Abraham
  • Patent number: 9931032
    Abstract: A device providing an indication of eye disease in a patient comprises a light emitter; an optical assembly arranged so that light emitted from the light emitter reaches an eye of the patient; a camera arranged to image the eye of the patient; and a controller. The controller measures the eye's pupil area using images received from the camera and adjusts the luminance of the light emitted from the light emitter as a non-constant function of the eye's pupil area so as to create a plurality of stimulus intervals. At least two of the stimulus intervals differ in their average retinal illuminance. The controller analyzes the pupil measurements and/or an electrical response in at least two of the stimulus intervals to provide an indication of eye disease based. In some embodiments, the patient's age is also used in the analysis. Methods of using said device are also contemplated.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 3, 2018
    Assignee: LKC TECHNOLOGIES INC.
    Inventor: Charles Quentin Davis
  • Patent number: 9933633
    Abstract: Contact lenses include three or four annular spherical or aspherical optical zones for improved bifocal vision with reduced glare and blurriness in which the boundaries of certain of the distance and near power zones are established in relationship to the user's pupil size at differing illuminations. A device to measure pupil size at varying illuminations to assist in making the improved contact lenses is also disclosed.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: April 3, 2018
    Inventor: Paul Douglas Becherer
  • Patent number: 9918626
    Abstract: An improved eye examination device for use of an eye examination is described herein. The device includes a support device enclosing a chin rest for an eye patient to place their chin in order for an eye professional/technician to examine at least one eye of the eye patient.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: March 20, 2018
    Inventor: Rick A. Norwood
  • Patent number: 9913580
    Abstract: Apparatus, method, and non-transitory medium for optical stabilization and digital image registration in scanning light ophthalmoscopy. Scanning an object with measurement light. Acquire an image of the object to be examined based on return light from the object. Acquire information which indicates movement of the object to be examined based on a plurality of acquired images. Control the scanning based on the information which indicates the movement of the object to be examined. Performing registration of the plurality of images.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 13, 2018
    Assignees: Canon Kabushiki Kaisha, University of Rochester
    Inventors: Kenichi Saito, Qiang Yang, Jie Zhang, Koji Nozato
  • Patent number: 9910294
    Abstract: A computer-implemented method for calculating or optimizing a spectacle lens for at least one eye of a spectacle wearer. Refraction data of the at least one eye of the spectacle wearer is collected. An individual eye model is defined, wherein the eye model defines at least the topography of a corneal front surface of the at least one eye, position and power of a lens of the eye, and a retina position of the eye such that the eye exhibits the collected refraction data. A first surface and a second surface for the spectacle lens to be calculated or optimized is specified. The path of a main ray through at least one visual point of at least one spectacle lens surface to be calculated or optimized is determined. A spherical wavefront incident on the first surface of the spectacle lens along the main ray is specified.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 6, 2018
    Assignee: Rodenstock GmbH
    Inventors: Helmut Altheimer, Wolfgang Becken, Gregor Esser, Anne Seidemann, Werner Mueller
  • Patent number: 9895264
    Abstract: This disclosure relates generally to methods and devices for use in viewing and positioning an eye with a gonio lens system, such as during ocular exams and ocular surgeries. Some embodiments of the gonio lens system can include a gonio lens for viewing one or more tissues and structures of the eye. In addition, the gonio lens system can include one or more positioning features for controlling movement positioning of the eye.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: February 20, 2018
    Assignee: Novartis AG
    Inventors: Steven John, Richard S. Lilly, Luke Clauson, Steven Vold, Brian Walsh
  • Patent number: 9888845
    Abstract: A system and method are provided for optical detection of cognitive impairment of a person using a portable video capture device (PVCD). In one embodiment, the method includes: (i) capturing video of an eye exposed to light stimuli over a predetermined time using a video camera of the PVCD; (ii) processing the video to locate at least one feature of the eye; (iii) measuring a change in the feature in response to the light stimuli; (iv) analyzing data from the measured change in the feature by extracting data from the measured change in the feature, calculating a number of parameters from the extracted data, correlating the calculated parameters with predetermined reference parameters and predicting a degree of impairment based on the results of the correlation; and (v) outputting through a user interface in the PVCD the degree of impairment to a user. Other embodiments are also described.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 13, 2018
    Inventor: Antonio Visconti
  • Patent number: 9888839
    Abstract: Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on tear film characteristics analysis and dry eye symptoms are disclosed. In embodiments herein, imaging of the ocular tear film is performed during contact lens wear. An analysis of the image of the ocular tear film is performed to determine one or more tear film characteristics of the ocular tear film. The tear film characteristics can be used to determine the effect or possible effect of contact lens wear on the ocular tear film, and thus be used to determine contact lens intolerance of the patient. The tear film characteristics used to analyze contact lens intolerance based on images of the ocular tear film involving contact lens wear may include dry eye symptoms, including but not limited to tear film (e.g., lipid and/or aqueous) thickness, tear film viscosity, and tear film movement rate in the eye.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: February 13, 2018
    Assignee: TearScience, Inc.
    Inventors: Donald R. Korb, Stephen M. Grenon, Steve Bacich
  • Patent number: 9867534
    Abstract: According to one embodiment, an ophthalmologic apparatus is configured such that an operation unit is attached thereto. The ophthalmologic apparatus includes a measuring head, a user interface, and a controller. The measuring head is configured to perform optical measurement of a subject's eye. The user interface is used for performing an operation in relation to the optical measurement of the subject's eye. The controller is configured to detect whether an operation on the operation unit is enabled. Further, the controller is configured to perform at least display control for the user interface in different operation modes between an enabled state in which the operation on the operation unit is enabled and a disabled state in which the operation on the operation unit is disabled.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: January 16, 2018
    Assignee: TOPCON CORPORATION
    Inventors: Naoki Inuzuka, Tomohiro Sakurada, Naoki Kaneda
  • Patent number: 9867535
    Abstract: A method for determining the axial length of an eye by optical coherence tomography (OCT), in which the alignment of the measuring instrument to the eye is monitored to enable reliable determination of the axial length of the eye. B-scans are carried out following alignment from which scans of the retinal tissue structures are detected to determine the axial lengths, which are then used in the detection of the fovea in order to monitor alignment. The axial lengths determined from the B-scans are then confirmed or corrected and output depending, on the determined position of the fovea or the lateral distance thereof from the optical axis of the measuring instrument. The method is particularly suitable for OCT methods in which the axial length is determined on the basis of an A-scan along the axial dimension of the eye.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: January 16, 2018
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Volkwardt, Ferid Bajramovic, Tobias Bühren
  • Patent number: 9861274
    Abstract: A method of assisting visual exploration for individuals suffering from a retinal condition resulting in a scotoma and, more particularly, a method S for assisting visual exploration by such an individual of a digital image on a display device, the method including: —recognizing, using shape recognition software, at least one object contained in an object area of the digital image, —determining a blind area in the image, corresponding to a position of the scotoma in the field of vision of the user looking at the image, —if the blind area and the object area are detected to be in close proximity to each other, applying image processing to the image consisting in highlighting the object area for the user.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: January 9, 2018
    Assignees: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSITE D'AIX-MARSEILLE
    Inventors: Carlos Aguilar, Eric Castet
  • Patent number: 9852518
    Abstract: A method and system for calculating laser beam spot size, comprising: collecting a spot image of a laser beam and a corresponding background noise image along an optical axis direction; conducting pretreatment using a background subtraction method and a threshold method according to the spot image and the background noise image collected to obtain a pretreated spot image; calculating the central position of a laser spot of the pretreated spot image; and storing the pixel gray values of the spot image at the central position of the laser spot on a horizontal direction and a vertical direction, then conducting Gaussian curve fitting, calculating variances of Gaussian fitted curves on the horizontal direction and the vertical direction, and obtaining the spot radiuses of the spot image on the horizontal direction and the vertical direction according to the variances calculated.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: December 26, 2017
    Assignee: SHENZHEN UNIVERSITY
    Inventors: Jindong Tian, Lei Zhang, Dong Li, Yong Tian
  • Patent number: 9844323
    Abstract: In exemplary implementations of this invention, a bi-ocular apparatus presents visual stimuli to one eye of a human subject in order to relax that eye, while measuring refractive aberration of the subject's other eye. Alternately, a monocular device presents stimuli to relax an eye while testing the same eye. The apparatus induces eye relaxation by displaying virtual objects at varying apparent distances from the subject. For example, the apparatus may do so by (i) changing distance between a backlit film and a lens; (ii) using extra lenses; (iii) using an adaptive lens that changes power; (v) selecting distinct positions in a progressive or multi-focal length lens; (vi) selecting distinct optical depths by fiber optical illumination; (vii) displaying a 3D virtual image at any given apparent depth; or (viii) display both a warped version of the real world and a test image at the same time.
    Type: Grant
    Filed: July 20, 2013
    Date of Patent: December 19, 2017
    Assignee: Massachusetts Institute of Technology
    Inventors: Vitor Pamplona, Ramesh Raskar
  • Patent number: 9826897
    Abstract: In a perimetry to be conducted, designating an inspection region through a region designator, stimuli are presented to regions separated in an up/down direction, an oblique direction and a right/left direction from the inspection region (“the spaced region”) in addition to the designated inspection region. At the result, examinees are not able to predict to which of both regions, the inspection region and the spaced region the stimuli are presented, thereby obtaining correct inspection results that do not receive a prediction of the examinees.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 28, 2017
    Assignee: KOWA COMPANY, LTD.
    Inventors: Satoshi Shimada, Takuya Hara
  • Patent number: 9820648
    Abstract: An image processing apparatus includes a generation unit and a display control unit. The generation unit generates a subtraction image using a first region and a second region, the first region being a portion of a first fundus image acquired by performing autofluorescence imaging on a fundus of an eye to be inspected, the second region being a portion of a second fundus image acquired by performing autofluorescence imaging on the fundus of the eye to be inspected at a time different from that of the first fundus image and being at a position corresponding to the first region. The display control unit causes a display unit to display an image generated by superimposing information regarding the subtraction image at a position corresponding to the first and second regions on a fundus image acquired by performing autofluorescence imaging on the fundus.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Ota, Tomoyuki Iwanaga, Manabu Wada
  • Patent number: 9819864
    Abstract: A method, system or apparatus for generating a wide field retinal image. System embodiments comprise a camera, which may be a smartphone camera and associated optics to capturing a digital video stream of individual retinal images and store the video stream of individual retinal images in a memory associated with the camera. The system or method then implements the steps of processing each retinal image and combining selected retinal images into a panorama in real time, during an ocular examination.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 14, 2017
    Assignee: RSVB, LLC
    Inventor: David Henriksen
  • Patent number: 9801536
    Abstract: A polarization-based colposcopy apparatus includes a polarization exchanging beam splitter pair oriented so that s- and p-polarizations are exchanged. An optical flux from a specimen is directed through the pair, and orthogonal components thereof are alternately or selectively coupled to an array detector. The detected images are processed based on image correlations to reveal specimen structures.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: October 31, 2017
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Amir Gandjbakhche, Victor Chernomordik, Moinuddin Hassan, Alexander Sviridov, Zachary Ulissi, Paul D. Smith, Albert C. Boccara
  • Patent number: 9789002
    Abstract: An electronic SLO/OCT ophthalmoscope is equipped with a femtosecond (fs) laser for intra- or preretinal therapeutic use in the posterior segment of the eye. In one application the retina photoreceptor mosaic or Bruch's membrane is disrupted in such pattern that minimizes loss of visual functioning but reduces metabolic load of the outer retina. Using a beam splitter, one embodiment combines the SLO/OCT scanning beams with the therapeutic fs beam and an aiming beam. The therapeutic channel uses an independent x/y positioner and micro-deflector. Because the duty cycle is appropriate, a second embodiment can use the SLO/OCT scanners to also simultaneously scan a modulated therapeutic laser beam. A biometric OCT probe can be integrated in both configurations for focusing purpose. A method is disclosed to represent focus relevant tilting of the retina in the posterior pole.
    Type: Grant
    Filed: August 30, 2014
    Date of Patent: October 17, 2017
    Inventor: Frans J. Van de Velde
  • Patent number: 9782071
    Abstract: An ophthalmologic photographing apparatus includes: a photographing optical system including an optical scanner for scanning an examinee's eye with measurement light and a detector for detecting a coherent state of reflected light of the measurement light from the examinee's eye and reference light, the photographing optical system being configured to capture a tomographic image of the examinee's eye in response to an output signal from the detector; a reference data setting unit for setting a photographing condition of a previously acquired captured image as reference data for a follow-up; an image capture data setting unit for setting the reference data set by the reference data setting unit as image capture data for the follow-up; and a tomographic image acquisition controller for acquiring a tomographic image of the examinee's eye by controlling the photographing optical system based on the reference data set as the image capture data.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: October 10, 2017
    Assignee: NIDEK CO., LTD.
    Inventor: Kenshiro Fujiu
  • Patent number: 9775507
    Abstract: An ophthalmic apparatus obtains naked-eye wavefront aberration data of an examinee's eye measured by an aberration measuring unit, and calculates first corrected wavefront aberration data intended for a prescription with a first correction power based on the naked-eye wavefront aberration data and the first correction power and generates a first evaluation index based on the first corrected wavefront aberration data. The ophthalmic apparatus further calculates second corrected wavefront aberration data intended for a prescription with a second correction power different from the first correction power in at least one of spherical power, astigmatic power, and astigmatic axis angle based on the naked-eye wavefront aberration data and the second correction power, and generates a second evaluation index based on the second corrected wavefront aberration data. The ophthalmic apparatus then displays the first and second evaluation indexes selectively or in parallel on a monitor.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: October 3, 2017
    Assignee: NIDEK CO., LTD.
    Inventor: Kazunari Shimizu
  • Patent number: 9775510
    Abstract: Methods for analyzing optical coherence tomography (OCT) images of the macula to reduce variance and improve disease diagnosis are presented. One embodiment of the invention is directed towards selecting analysis locations and data segmentation techniques to take advantage of structural homogeneities. Another embodiment is directed towards reducing the variance in a collection of normative data by transforming the individual members of the database to correspond to a Standard Macula. Variations in foveal size are corrected by radial transformation. Variations in layer thickness are corrected by axial shifting. Diagnosis is performed by comparing OCT images from a patient to the improved normative database.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: October 3, 2017
    Assignee: CARL ZEISS MEDITEC, INC.
    Inventors: Robert W. Knighton, Matthew J. Everett, Mary K. Durbin, Jonathan D. Oakley
  • Patent number: 9763572
    Abstract: A non-invasive bedside tool for monitoring central nervous system effects of opioids. The tool illustratively comprises a quantitative pupillometry system for predicting a probability of at least one opioid-related central effect based on detected pupillary effects.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: September 19, 2017
    Assignee: Children's Hospital Medical Center
    Inventor: Senthilkumar Sadhasivam
  • Patent number: 9757031
    Abstract: An ophthalmoscope device includes a support structure, an image capture device, and a display device. The support structure is configured to be worn by a subject. The image capture device is configured to capture images of the eye fundus of the subject. The display device is configured to overlay images in the field of view of the subject. The overlaid images are used to align the pupil/fovea orientation axis with the optical axis of the image capture device.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 12, 2017
    Assignee: Welch Allyn, Inc.
    Inventors: Ynjiun Paul Wang, Ervin Goldfain, Eric G. Petersen
  • Patent number: 9746660
    Abstract: This invention teaches a binocular telescope wherein wedge prisms are positioned in the optical path of each telescope to control the amount of perceived parallax between the left and the right images. In one embodiment, a pair of thin wedge prisms are positioned in front of the objective lenses to optically manipulate the real convergence angle of an object viewed through the binocular telescope. In a second embodiment, wedge prisms are positioned after the eyepiece lenses to manipulate the apparent convergence angle of an object viewed through the binocular telescope. Depending on the position and the orientation of the wedge prisms, the invention produces benefits such as better depth perception, increased field of view, and the possibility to view close objects.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: August 29, 2017
    Assignee: Lucida Research LLC
    Inventor: Omid S. Jahromi
  • Patent number: 9743832
    Abstract: A method of determining a corneal thickness and an apparatus for determining the same. The method comprises the following steps of illuminating a cornea by a plurality of stimulator point light sources, capturing an image of the cornea comprising reflected images of the stimulator point light sources, obtaining a first model representing an anterior surface of the cornea, constructing a second model representing a posterior surface of the cornea from the image by ray-tracing the reflected images of the stimulator point light sources towards the first model representing the anterior surface of the cornea, and determining the corneal thickness from the first model representing the anterior surface and the second model representing the posterior surface.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: August 29, 2017
    Assignee: Cassini B.V.
    Inventors: Victor Arni de Paz Sicam, Roland Bryn Piper
  • Patent number: 9730581
    Abstract: An optical coherence tomographic imaging apparatus includes a movement amount acquisition unit configured to acquire the amount of subject's eye movement based on a plurality of images of the subject's eye acquired at different times, a determination unit configured to determine whether the amount of subject's eye movement before a scan by the scanning unit exceeds a threshold value, and a control unit configured to, in a case the amount of subject's eye movement before the scan is equal to or smaller than the threshold value, control the scanning unit to perform scanning position correction between a scan and the next scan based on the amount of movement.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 15, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Wataru Sakagawa, Yukio Sakagawa, Shigeaki Ono, Hiroki Uchida
  • Patent number: 9733474
    Abstract: A method of determining a reference calibration setting for an adaptive optics system (1) comprising a detecting device (8) for detecting light from an object (5); and at least one controllable wavefront modifying device (9) arranged such that light from the object (5) passes via the wavefront modifying device (9) to the detecting device (8).
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 15, 2017
    Assignee: Zoran Popovic, Jörgen Thaung, Mette Pedersen-Owner, Bengt Svensson and Per Knutsson
    Inventors: Zoran Popovic, Jorgen Thaung, Mette Owner-Petersen, Bengt Svensson, Per Knutsson
  • Patent number: 9723982
    Abstract: A method is provided for determining the dominant eye of a person using equipment designed to acquire at least one image of the face of the person, then process the image, and finally return information enabling the person to know which eye is the dominant eye thereof. The method uses a sighting device that is identifiable and locatable in relation to the equipment, with the viewing being carried out through a window with both eyes open. The size of the window is such that it does not allow the person to see said target with both eyes at the same time. The equipment acquires at least one image for viewing the position of both eyes of the person, processing the image by performing calculations while taking into account the position of a central point located between both eyes, the position of the target and the position of the window.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: August 8, 2017
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventor: Ahmed Haddadi
  • Patent number: 9719927
    Abstract: An excitation light source emits excitation light to a target sample. An image sensor includes pixels arranged one-dimensionally or two-dimensionally, and receives measurement light from the sample according to the excitation light. A polarization selector arranged between the sample and image sensor includes pixels arranged one-dimensionally or two-dimensionally. Each pixel receives a corresponding portion of the measurement light, selects light having a polarization direction that corresponds to a driving signal applied to the pixels, and supplies this light to the image sensor. A measurement control unit supplies the cyclic driving signal having a first period T1, and acquires data I1, I2, I3, and I4 from each pixel of the image sensor for each exposure time segment T2=T1/4 obtained by dividing the first period T1 by 4.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: August 1, 2017
    Assignees: TOHOKU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Akihide Hibara, Manabu Tokeshi, Osamu Wakao
  • Patent number: 9717405
    Abstract: Optical coherence tomography (OCT) scan data is used to automatically detect and characterize vitreoretinal membranes in a spatially precise manner to generate a mask image. The mask image may characterize various aspects of a vitreoretinal membrane. The mask image is then overlaid with an optical image of the retina to enable visualization of the vitreoretinal membrane.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 1, 2017
    Assignee: Novartis AG
    Inventors: Hugang Ren, Lingfeng Yu
  • Patent number: 9717408
    Abstract: An ophthalmologic imaging apparatus includes: a first optical system that applies an accommodation stimulus to a subject's eye; a tomographic image forming unit that includes a second optical system that splits light from a light source into signal light and reference light, and detects interference light between the signal light having travelled via the subject's eye and the reference light, and creates a tomographic image of the subject's eye based on a detection result of the interference light; and an analyzer that compares a first tomographic image with a second tomographic image to acquire change information indicating a change in a tissue of the subject's eye due to an accommodation stimulus change. The first and second tomographic images are respectively created by the tomographic image forming unit for the subject's eye, to which first and second accommodation stimuli are respectively applied by the first and second optical systems.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 1, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Masahiro Akiba, Yasufumi Fukuma, Hiroshi Akiyama, Hisashi Tsukada, Eiichi Yanagi
  • Patent number: 9710707
    Abstract: A method and system for determining a roll angle in an eye image is described. A center of an iris, an inner eye corner, and an outer eye corner in an eye image may be determined. The eye image may be normalized and transformed to a polar eye image using the center of the iris as a reference for the transformation. A shift associated with the inner eye corner and a shift associated with the outer eye corner may be determined. The shifts associated with the inner eye corner and the outer eye corner may be indicators of an orientation of the eye image or roll angle, and may be used for subsequent eye image processing and matching.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: July 18, 2017
    Assignee: MorphoTrust USA, LLC
    Inventors: Joseph Mayer, Brian Martin
  • Patent number: 9706919
    Abstract: An ophthalmologic apparatus includes a photographing optical system configured to photograph a fundus of a subject's eye via a focusing lens, a projection unit configured to project, via a mask portion including an opening, a focusing index corresponding to the opening, and a driving unit configured to drive the focusing lens along an optical path based on a position of an image corresponding to the mask portion and a position of a focusing index image corresponding to the opening in a fundus image of the subject's eye.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: July 18, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yuji Ota
  • Patent number: 9712789
    Abstract: In a method and apparatus for the generation of image data of a moving subject, raw data are initially acquired for a region comprising the subject at different measurement points in time in different movement phases of the subject. A reconstruction then takes place of multiple interim image data sets of the subject from the raw data that are respectively associated with different movement phases of the subject. Deviation data are then determined between the interim image data sets of the different movement phases of the subject, and the reconstruction of image data from raw data of different movement phases then takes place under consideration of the deviation data.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: July 18, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christoph Forman, Michael Zenge
  • Patent number: 9706913
    Abstract: In one embodiment, a wavefront sensor is combined with a slit lamp eye examination device so that real time aberration values of an eye being examined can be viewed during a slit lamp eye examination session.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: July 18, 2017
    Assignee: CLARITY MEDICAL SYSTEMS, INC.
    Inventors: Yan Zhou, William Shea, Barry Linder
  • Patent number: 9696254
    Abstract: The present disclosure generally relates to a device and a method for alignment. The alignment device provides optical architecture to align the alignment device to an analyte and measure the optical properties of an analyte. The method for alignment provides steps for aligning an optical measurement device to an analyte.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 4, 2017
    Assignee: Taiwan Biophotonic Corporation
    Inventors: Yu-Tang Li, Chang-Sheng Chu, Pei-Cheng Ho, Kuan-Jui Ho, Shuang-Chao Chung, Chih-Hsun Fan, Jyh-Chern Chen
  • Patent number: 9693687
    Abstract: According to one embodiment, an ophthalmic examination system includes a plurality of ophthalmic examination apparatuses and a management apparatus that manages the operational status of the ophthalmic examination apparatuses. The ophthalmic examination system includes a receiver, a counting unit, a storage device, and a storage controller. The receiver receives first identification information for identifying a subject. The counting unit includes a counter provided for each apparatus group including at least one ophthalmic examination apparatus, and counts the number of times of use of the apparatus group in units of the first identification information of the subject examined with the ophthalmic examination apparatus included in the apparatus group. The storage controller acquires a counter value indicated by the counter from the counting unit, associates the counter value with second identification information for identifying the apparatus group, and stores them in the storage device.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: July 4, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventor: Shigetaka Tsuri
  • Patent number: 9687145
    Abstract: An excitation force (internal or external) and phase-sensitive optical coherence elastography (OCE) system, used in conjunction with a data analyzing algorithm, is capable of measuring and quantifying biomechanical parameters of tissues in situ and in vivo. The method was approbated and demonstrated on an example of the system that combines a pulsed ultrasound system capable of producing an acoustic radiation force on the crystalline lens surface and a phase-sensitive optical coherence tomography (OCT) system for measuring the lens displacement caused by the acoustic radiation force. The method allows noninvasive and nondestructive quantification of tissue mechanical properties. The noninvasive measurement method also utilizes phase-stabilized swept source optical coherence elastography (PhS-SSOCE) to distinguish between tissue stiffness, such as that attributable to disease, and effects on measured stiffness that result from external factors, such as pressure applied to the tissue.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: June 27, 2017
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Kirill V. Larin, Jiasong Li, Manmohan Singh, Chen Wu, Salavat Aglyamov
  • Patent number: 9681802
    Abstract: A method for determining reflectivity of a tear film lipid layer of a patient and recommending a course of treatment based on the same. The method includes the steps of: measuring a tear film aqueous plus lipid layer relative reflectance spectrum using a wavelength-dependent optical interferometer; converting the measured tear film aqueous plus lipid layer relative reflectance spectrum to a calculated absolute reflectance spectrum; comparing the calculated absolute reflectance spectrum to a theoretical absolute lipid reflectance spectrum to determine a tear film lipid layer thickness; and determining a reflectivity value for the tear film lipid layer thickness at a first wavelength of light corresponding to ultraviolet, violet, or blue light.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: June 20, 2017
    Assignee: Abbott Medical Optics Inc.
    Inventors: Stanley W. Huth, Denise Tran
  • Patent number: 9681805
    Abstract: A new device, called Afferent Pupil Tester, designed for close up and magnified examination of both pupils at the same time, superimposed, as they react to direct and consensual light, comprises of high plus lenses, measuring grid, bright LED lights controlled with momentary switches, UV lights controlled by momentary switches, batteries, built-in camera and/or external camera, detachable facemask, and a sturdy casing.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: June 20, 2017
    Inventor: Babak Kamkar
  • Patent number: 9675246
    Abstract: A medical diagnostic instrument or a plurality of disparate medical diagnostic instruments are configured with a common optical architecture that functionally creates a virtual eye to create closer proximity to a patient and therefore increase the field of view in regard to a target of interest. The optical system includes a distal optical element, at least one relay lens and an eyepiece lens in which the optical system can be integrated within at least one instrument or be provided using a releasable module. Additionally, at least one of a viewing assembly and illumination assembly of at least one medical diagnostic instrument can be assembled using a series of components that are connected by interlocking features.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: June 13, 2017
    Assignee: Welch Allyn, Inc.
    Inventors: Ervin Goldfain, Raymond A. Lia