Abstract: Systems and methods for counter-phased binocular stimulation may include a device that determines a target frequency of a stimulation response. The device may output a first visual stimulation at a first frequency and a first phase to a first eye. The device may output a second visual stimulation at a second frequency and a second phase to a second eye. The first visual stimulation and the second visual stimulation may together produce the stimulation response at the target frequency.

Abstract: It is an object of the present invention to provide a vision training device capable of performing color correction for a display and providing elaborate vision training. In order to achieve the above objects, a vision training device according to the present invention includes a color filter having an optical property disposed in a field of view direction of an eye of a user, a display, a user operating unit that adjusts image information of the display, and a control unit that causes a reference color image within a range similar to a color of the color filter to be displayed on the display and stores a correction confirmation signal for the display as a correction value when the correction confirmation signal is input through the user operating unit.

Abstract: Provided is an imaging apparatus that captures a multispectral image having a good image quality. An imaging apparatus (1) includes an imaging optical system (10) that includes a pupil region which is split into a plurality of regions including a first pupil region and a second pupil region different from the first pupil region, and a polarization filter which polarizes light beams passing through the first pupil region and the second pupil region in directions different from each other, an imaging element (100) that includes a first pixel which receives the light beam passing through the first pupil region and a second pixel which receives the light beam passing through the second pupil region, and a signal processing unit (200) that processes signals output from the imaging element (100), and outputs at least first image data consisting of an output signal of the first pixel and second image data consisting of an output signal of the second pixel.

Abstract: Active dichoptic perceptual-learning tasks or dichoptic game play have been shown to significantly improve visual acuity of amblyopic children and adults. However, these dichoptic perceptual learning tasks are intensive and repetitive such that non-compliance is high. In contrast, the invention provides dichoptic perceptual learning in a manner that the user maintains its use and compliance is increased. Further, compliance becomes automatic if the user performs tasks in a normal manner and “forgets” that they are actually under-going treatment as it is integrated with minimal disruption to their life and activities. Accordingly, a methodology exploiting complementary dichoptic stimulation is presented.

Abstract: A vision testing device includes a light-occluding casing for administering vision tests. A viewing station is coupled to the light-occluding casing so a test subject can see a first digital display housed within the light-occluding casing. A second digital display is external to the light-occluding casing and is configured to receive touch-based input. One or more predetermined vision tests are displayed via the first digital display. The second digital display receives input corresponding to the vision test displayed via the first digital display. The second digital display includes response indicators that can be activated via a swiping motion on the second digital display, and a response is recorded as a result of the swiping motion. Each answer corresponding to a swiping motion is stored and output as a result of the vision test.

Abstract: A subjective optometry apparatus includes: a subjective measurer which has a corrective optical system disposed on an optical path of a light projecting optical system configured to project a target light flux toward an examinee's eye and configured to change an optical characteristic of the target light flux and which is configured to subjectively measure an optical characteristic of the examinee's eye; an acquisitor configured to acquire position information on at least one of examinee's right and left eyes; a determiner configured to determine, based on the position information acquired by the acquisitor, whether or not subjective measurement can be implemented in a binocular open state of the examinee's right and left eyes, thereby acquiring determination information; and a determination information output unit configured to output the determination information acquired by the determiner.

Abstract: A method of analyzing the degree of abnormality in the eye is provided, and in the method at least some portion of the functional evaluation of the eye's visual function is performed by presenting visual stimuli in mesopic conditions. A visual function examination device is provided, and in the device the spectral composition of the stimuli is generated by a projection or display device, and the said projection or display device can be adjusted so that individual receptor types can be excited by the said stimuli.

Abstract: Active dichoptic perceptual-learning tasks or dichoptic game play have been shown to significantly improve visual acuity of amblyopic children and adults. However, these dichoptic perceptual learning tasks are intensive and repetitive such that non-compliance is high. In contrast, the invention provides dichoptic perceptual learning in a manner that the user maintains its use and compliance is increased. Further, compliance becomes automatic if the user performs tasks in a normal manner and “forgets” that they are actually undergoing treatment as it is integrated with minimal disruption to their life and activities. Accordingly, a methodology exploiting complementary dichoptic simulation is presented.

Abstract: An assortment of Cognitive Load Reduction (CLR) systems is disclosed. The systems are worn by a user, rather than appearing on displays in front of the user. This arrangement allows the systems to be movable and less confining. This in turn results in the wearer employing the CLR systems in a wider variety of environments than earlier mechanisms.

Abstract: Systems and methods may provide for capturing 360 degree video, and multi-resolution encoding, processing and displaying of the video based on a field of view (FOV) and region of interest (ROI) for a viewer. The ROI may be determined based on eye tracking information (ETI) and the video may be encoded for viewports within the FOV at a high resolution and for other viewports outside the FOV at a lower resolution. ROI in the video may be encoded at a high resolution and areas outside of the ROI may be encoded at a lower resolution. The ETI enables the selective display of one or more warnings based on the gaze of a user to improve the efficiency of the warning. 3D glasses having variable lens may be used to adjust the focal distance of a virtual display to match a virtual distance of an object based on stereo distance cues.

Abstract: Optoelectronic binocular instrument for the automatic correction of presbyopia and method for the binocular correction of the presbyopia. The instrument has two optoelectronic lenses (103, 110; 203, 204) and a capturing subsystem for taking images of the eye. By means of the pupil tracking, which performs the processing of the eye's images, the system determines the distance where the subject is looking at. The pupil tracking works at a very high speed, using a high-performance graphic processor and a highly parallelized algorithm for pupil tracking. The method consists of two phases. In the first one a calibration is accomplished, the subject is asked to look at targets at different distances and the size and position of the pupil is measured. In the second phase the correction is performed by the instrument, the system continuously captures and processes images to calculate the correction to apply and, finally, corrects the presbyopia by applying said correction.

Abstract: A method of improving stereopsis and devices for improving stereopsis in a patient, including facilitating development of a new stereo preferred retinal locus by presenting the patient with dichoptic images that require simultaneous use of both eyes to accomplish a visual task.

Abstract: The present disclosure changes a position of a combined image relative to a display unit in at least one of a horizontal and a vertical direction of the display unit based on information about a position and an orientation at the time of combined image display on the display unit and information about a position and an orientation of an image display apparatus at the time of image capturing by an imaging unit. In this case, the present disclosure changes the position of the combined image such that a moving amount of the combined image falls within a predetermined range in at least one of the horizontal and the vertical directions of the display unit.

Abstract: A variation of a method for estimating a quantity of a blood component in a fluid canister includes: within an image of a canister, identifying a reference marker on the canister; selecting an area of the image based on the reference marker; correlating a portion of the selected area with a fluid level within the canister; estimating a volume of fluid within the canister based on the fluid level; extracting a feature from the selected area; correlating the extracted featured with a concentration of a blood component within the canister; and estimating a quantity of the blood component within the canister based on the estimated volume and the concentration of the blood component within the canister.

Abstract: A vision testing device capable of reducing a psychological sense of uneasiness, stress and the like given to a testee when a vision test is performed with a main body of the vision testing device mounted on a head portion of the testee, including: a device main body mounted on a head portion of a testee who undergoes a vision test, and having display devices for displaying a test image for the testee and a camera for photographing an external image; a switch operated by the testee; and a display control unit which performs switching of display images to be displayed on display devices between a test image and the external image photographed by the camera when the switch is operated under a predetermined operation condition in a state that the test image is displayed on the display devices.

Abstract: The aspect of the embodiments is directed to an image processing apparatus capable of executing gradation processing according to various shapes of boundary portions by determining start positions for starting the gradation processing for applying a gradient to a luminance value in a horizontal direction of an image in positions in a vertical direction of the image.

Abstract: A method includes displaying a high contrast image on a display screen; and projecting the high contrast image through a Fresnel lens to provide a cue for adjusting a position of the Fresnel lens. Also disclosed is a device for determining and/or adjusting an offset of a Fresnel lens. The device includes a Fresnel lens and a display screen configured to project a high contrast image through the Fresnel lens. Further disclosed is a method for adjusting a position of a Fresnel lens. The method includes receiving a projection of a high contrast image transmitted through a Fresnel lens; and adjusting a position of the Fresnel lens based on the projection of the high contrast image.

Abstract: Embodiments of the invention include a method to determine a binocular alignment, the method comprising: measuring a disassociated phoria of a first eye and a second eye of a patient at an apparent distance; and determining an accommodative convergence of the first eye and the second eye at the apparent distance using the measured disassociated phoria. In other embodiments, a system to determine a binocular alignment comprises a stereo display, for a projection of images for a first eye and a second eye; an accommodation optics, to modify the projection of the images according to an apparent distance; an eye tracker, to track an orientation of the first eye and the second eye; and a computer, coupled to the stereo display, the accommodation optics and the eye tracker, to manage a determination of the binocular alignment.

Abstract: Exemplary embodiments of the present disclosure relate to systems, methods, and apparatus for vision therapy. In exemplary embodiments a visual therapy game can be rendered on one or more displays and the visual therapy game can be controlled by eye movements of the user. Visual stimuli incorporated in the visual therapy game can be rendered to facilitate vergence eye movements for the treatment of binocular dysfunctions.

Abstract: Method for optotype representation (2) via an image output device (4) for a visual acuity test and/or determination of a refraction, with optotypes (10) being displayed in a three-dimensional image (6) and an image separation occurring in such a way that the optotypes (10) are monocularly discernible in binocular conditions, wherein the three-dimensional image (6) is binocularly discernible.

Abstract: The present invention provides a human perception test system, which performs a human perception test. The human perception test program and presents on the display module a human perception test interface; the human perception test interface is configured to display a graphic box and an arbitrarily moving graphic; a user operates the control unit to control the graphic box, so that the graphic box and the graphic perform synchronous displacement; when the period of time of the synchronous displacement is equal to a preset time value, two moving speeds of the graphic box within the period of time of the synchronous displacement are acquired; and the micro control unit determines, according to an absolute value of a difference between the two moving speeds, whether the user succeeds in the human perception test.

Abstract: Provided is a cyclodeviation measurement device capable of performing quantitative measurement at low cost and capable of being used not only for diagnosis in an examination room and but also during a surgical operation in a surgical operating room, which has not been considered so far. In addition, provided is an improved device of the above device which can perform cyclodeviation measurement at a position other than the front by stabilizing vision fixation. The cyclodeviation measurement device includes a board, a pair of Maddox rods provided on the board so that at least one Maddox rod is rotatable, a manipulation means capable of freely rotating the rotatable Maddox rod, and an indication means indicating a rotation angle of the Maddox rod. The improved device includes a pair of a Maddox rod and a Bagolini striated lens instead of a pair of the Maddox rods.

Abstract: A liquid crystal display device and a display flickering method are provided. The display flickering method includes receiving a first instruction signal and a color selection signal from a time sequence control circuit; outputting a data signal and a control signal according to the first instruction signal and the color selection signal; displaying an image by at least one frame display frequency according to the data signal; providing a backlight source for illuminating the display panel by at least one backlight flicker frequency according to the control signal, in which the display panel displays the at least one image having at least one frame flicker frequency according to the at least one backlight flicker frequency and the at least one frame display frequency.

Abstract: A method of displaying visual information to different viewer-eyes includes receiving eye strength data indicative of a deficiency of a weak viewer-eye with respect to a dominant viewer-eye. The method further includes causing a 3D-display system to display a first perspective of an image to the weak viewer-eye and causing the 3D-display system to display a second perspective of the image to the dominant viewer-eye. A difference between the first perspective and the second perspective is a variation of a display characteristic of one of the first and second perspectives where the variation is made in accordance with the indicated deficiency of the weak viewer-eye.

Abstract: A method of presenting content to a subject based on eye position measurements is provided. The method includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured. The method further includes continuously performing the operations of generating a variability metric using the one or more measured eye positions and comparing the variability metric with a predetermined baseline to determine an attention state of the subject. Upon detection of a change in the attention state, the presentation of the content is modified.

Abstract: In described embodiments, a device and method for diagnosing brain and neurological issues is provided. The device measures the performance of Convergence, Divergence, and binocular tracking capabilities of a subject's eyes, which can be used to determine whether a subject has experienced a brain or other neurological event.

Abstract: Illumination can be evaluated for patient using a system including a housing, an adjustable light source mechanically coupled to the housing and configured to illuminate an object for viewing by the patient on an axis substantially perpendicular to a surface of the object. A user-adjustable input coupled to the adjustable light source is to obtain information from a user indicative of a calibrated illuminance and a color property to be provided by the adjustable light source including providing a range of adjustable illuminance and color properties selectable by the user. The adjustable light source can be configured to provide light having an illuminance in excess of 300 lux, and the housing can be configured to provide a first specified distance between the adjustable light source and the object for viewing and to obstruct viewing of the light source directly by the patient.

Abstract: A method for using an interest-attention feedback loop involving the determination of the interest of a person in a left sensor stimulation stream and a right sensor stimulation stream, and the adjustment of attention factors to balance that interest, with the intent to facilitate, or train, a person to intentionally suppress binocular fusion and operate within the dual experience, where the person is able to simultaneously render separate left and right mental displays. The dual experience allows the person new mental processing capabilities that can produce novel information synthesis, double the information input in man machine interfaces, and allow reaction to the cognitive awareness of two simultaneous world views. This includes facilitating awareness and interactions with two different computer screen interfaces simultaneously, reducing fatigue associated with optical screen switching, and encouraging the fusion of two different simultaneous experiences into an abstract information synthesis.

Abstract: The present invention provides apparatus and methods for detecting fixation of an eye of a subject on a target. The methods provide for optimization of parameters of the spinning half wave plate and the fixed wave plate in the retinal birefringence scanning (RBS) design to enable uses of the “spinning artifact” frequency component. Frequency of the “spinning artifact” component is determined by half wave plate rotation speed and direction. Amplitude is determined by interaction of the spinning half wave plate with any retardance encountered in the double-pass optics such as the fixed wave plate, corneal birefringence, and small amount of retinal birefringence. With optimum selection of fractional spinning frequency of the half wave plate, and the orientation/retardance of the fixed wave plate, the “spinning artifact” frequency component is essentially independent of fixation direction and is also essentially independent of the normal range of corneal birefringence.

Abstract: A method, system or computer usable program product for detecting visual interaction factors indicative of visual impairment through normal use of a mobile device including monitoring and recording in memory visual interaction of a user with content presented by the mobile device during normal use of the mobile device in accordance with predetermined parameters; establishing a baseline pattern of visual interaction factors in accordance with the predetermined parameters; utilizing a processor to compare the visual interaction of the user with the baseline factors to determine a set of differences; and responsive to the set of differences exceeding a predetermined threshold, providing a notification of visual impairment.

Abstract: The present disclosure describes a variety of stereopter devices for testing depth perception using a plurality of three dimensional test sets which lack rotational symmetry around a bisecting horizontal plane. By means of the present stereopter device the plurality of test sets are presented against a uniformly lit and standardized background in each of two orientations to a test subject by rotation of a handle affixed to a housing which carries the test sets on planes orthogonal to a plane perpendicular to the axis of rotation. Following presentation of test sets in one orientation, the device is inverted for presentation of the test sets in the other orientation.

Abstract: The present invention discloses methods and apparatus for forming a Viewing Set of Ophthalmic Lenses for Three-dimensional Perception of stereoscopic media and includes the resulting Viewing Set devices. The Viewing Sets include a left Ophthalmic Lens and a right Ophthalmic Lens, wherein each Ophthalmic Lens includes a translation filter that, when combined, allow for Three-dimensional Perception. The present invention also includes embodiments where the translation filters are included in an encapsulated Rigid Insert or Media Insert, wherein the Media Insert includes a variable optic zone.

Abstract: The present invention discloses methods and apparatus for forming a Viewing Set of Ophthalmic Lenses for Three-dimensional Perception of stereoscopic media and includes the resulting Viewing Set devices. The Viewing Sets include a left Ophthalmic Lens and a right Ophthalmic Lens, wherein each Ophthalmic Lens includes a translation filter that, when combined, allow for Three-dimensional Perception. The present invention also includes embodiments where the translation filters are included in an encapsulated Rigid Insert or Media Insert, wherein the Media Insert includes a variable optic zone.

Abstract: A machine and method for balancing across the brain's fusion bridge rivalrous stimuli of image pairs having diametrically opposed brightness and means of adjusting the rivalrous balance to measure the depth of a vision defect.

Abstract: A system and method for assessing visual processing of a human subject is provided that allows measurement of vergence facility among other measurements. The system and method present a sequence of questions on a dichoptic display that request the identification of an item with stereo disparity. The questions alternate between the item having crossed stereo disparity and uncrossed stereo disparity in order to stress the vergence facility by forcing the eyes to diverge and converge to identify the item with stereo disparity. The time period for providing a response can be compared to a normative value that is equivalent to approximately 15 vergence cycles per minute to determine an abnormal or normal vergence facility.

Abstract: A surgical microscope system includes a camera 9 that is turnable around an optical axis K of the camera 9 to optionally select a photographing orientation. The camera 9 is able to pick up an electronic image of an affected part T in an orientation in which a main doctor sees the affected part T, or in an orientation in which an assistant, who is present at a different position from the main doctor, sees the affected part T, or in any other orientation. The electronic image picked up by the camera 9 in a selected orientation is stereoscopically observable with an electronic image display unit 2.

Abstract: A binocular-type viewing apparatus designed in such a manner that a user, wanting to view an object located at a distance above the viewer's horizontal line of sight, need only direct his/her view downward into the apparatus to view the elevated object. Thus the eyepiece component has an optical axis inclined downwardly and an objective optical component of the apparatus has an optical axis inclined upwardly. An optical structure is disposed between the objective and the eyepiece to redirect the image optical path from the objective optical component to the eyepiece component and into the viewer's eyes. The binocular may have a fixed deviated optical axis or a variably adjustable optical axis from in-line up to or exceeding 90 degrees.

Abstract: A display device according includes: a display section which displays a plurality of images intended for different eye-points; a separation section which optically separates the plurality of images for the different eye-points; a travel distance calculation section which calculates a plurality of directional travel distances of the separation section relative to the display section, in accordance with a change in an eye-point location of a viewer observing the display section; and a plurality of drive sections which is driven on the basis of the directional travel distances and moves the separation section relative to the display section.

Abstract: A pupil position and convergence detection system for an ophthalmic lens comprising an electronic system is described herein. The pupil position and convergence detection system is part of an electronic system incorporated into the ophthalmic lens. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The pupil position and convergence detection system is utilized to determine pupil position and use this information to control various aspects of the ophthalmic lens.

Abstract: The present application relates to a display apparatus comprising: a display portion which displays a first image and a second image different from the first image to create a stereoscopic image; a separator which separates the first and second images from each other; and an adjuster which adjusts a shape of the separator. The separator includes a barrier portion which blocks image light emitted from the display portion. The barrier portion includes a contour portion which defines a shape of at least one opening that allows transmission of the image light. The contour portion includes a first contour and a second contour facing the first contour. The first and second contours define a continuous opening region inclined at a predetermined angle from a vertical line. At least one of the first and second contours forms protrusions which periodically protrude toward the opening region. Shapes of the protrusions are heterogeneous.

Abstract: A user can know the level of his/her own binocular vision. When an input instruction is input by the user via an input part, an information management part outputs a test request to a testing device, and a determination processing part obtains test results output from the testing device. The determination processing part determines a total level based on the test results and on information stored in a storage part. The determination processing part outputs the obtained total level to an output processing part. The output processing part generates a display screen in which the obtained total level and indices associated with the total level are written. The output processing part outputs the generated display screen to a display part. This causes the display part to display the display screen, and the user can know the concrete level of his/her own binocular vision.

Abstract: A pair of eyewear has transparent waveguides in each eyewear lens. An illumination subsystem directs a beam of light through the waveguides onto a wearer's eyes. A First Purkinje point imaging subsystem for each lens uses light reflected from the eyes through the waveguides. A controller calculates from the positions of the First Purkinje points the wearer's gaze parallax angle and/or the distance to an object of interest on which the gaze of the wearer's eyes converges. The output of the controller may drive variable-focus eyeglass lenses to enable a presbyopic wearer to focus on the object. Modified Alvarez variable-focus lenses are described.

Abstract: A device for measuring depth of field of an eye optical system that includes a lens Badal having positive optical power, a positioning apparatus adapted to maintain the eye optical system on the image side of the lens at a first focal plane of the lens and a multi-vergency target that provides a plurality of objects that are simultaneously viewable, through the lens, by the eye optical system.

Abstract: An ophthalmic instrument for measurement of ocular refraction and visual simulation and a method of measurement obtaining the ocular refraction in a binocular manner, which incorporates a digitally controlled phase modulator for generating best ophthalmic correction in each subject. The instrument enables measuring refraction, not only associated with blurring and astigmatism, but also optical aberration of any order. The phoropter can simulate vision by any phase profile, including those of a diffractive or discontinuous type. The instrument also incorporates a subsystem for presentation of stimuli that produces stereoscopic vision of the same, enabling the subject to enjoy a three dimensional perception during the process, and two output pupils. The instrument, by its electro-optical features, enables simulation of vision as it would be modified after submitting an eye to different surgical techniques, such as refractive surgery or interocular lens implantation.

Abstract: A visual fatigue level measuring device includes: a video presenting unit which presents 3D video; a test period determining unit which determines two or more time periods each of which is for a test for measuring a level of visual fatigue; an eye movement obtaining unit which obtains data indicating eye movements of left and right eyes of a player with respect to the presented video; an eye movement extracting unit which extracts, from the obtained eye movement data, eye movement data in each of the two or more time periods determined by the test period determining unit; an eye movement comparing unit which compares eye movements in the two or more time periods based on the extracted data; and a fatigue level determining unit which determines the level of visual fatigue of the player based on the comparison result.

Abstract: The invention relates to a stereovision optometry apparatus comprising: a 3D display unit for displaying 3D image; a reference 2D display unit for displaying reference 2D image; an eyepiece in opposite side of the 2D display unit configured to view the images; a reflective mirror in opposite side of the 3D display unit configured to move toward and away from the 3D display unit; and a half mirror arranged between the 3D display and the reflective mirror and disposed at a point where propagation paths of the 2D image and the 3D image intersect; wherein the 2D image penetrates through the half mirror to reach the eyepiece; wherein the 3D image penetrates the half mirror to be reflected on the reflective mirror and then the reflected image is reflected on the half mirror to reach the eyepiece.

Abstract: The invention relates to an instrument for simulation of multifocal ophthalmic corrections, comprising two optical channels with different optical power values in the beams coming from the object observed, wherein at least one channel comprises a Badal system. This instrument simultaneously provides images of objects near and far focused. The system provides the same optical magnifications for each channel, regardless of the optical power thereof, and produces superimposed retinal images with different degrees of focus which, unlike other devices, are all of the same size. The instrument allows simulating different optical powers for near vision and different refractive corrections for distant vision.

Abstract: Method and system for treating of visual impairment associated with misalignment between eyes of a patient is described. The invention allows to obtain electronically of an image of an object at which one eye of the patient is staring, calculating angular deviation between staring direction of this eye and the second eye and displaying before the second eye the image after it has been electronically processed so as to correct the angular deviation and to obtain the image, which would be perceptible by the brain as a single three dimensional stereoscopic image.

Abstract: An eyesight testing apparatus examines associated heterophoria of the eyes of a subject. The apparatus includes an image generation device having a display unit for generating test patterns for display to the eyes. An optical assembly is arranged on that side of the display unit facing the eyes. This assembly separates light supplied by a first group of selected zones of the display unit from light supplied to a beam path by a second group of selected zones of the display unit. The left eye only receives the light from the first group. The light from the second group only passes to the right eye. The optical assembly includes a prism matrix having a multiplicity of prism portions extending in the vertical direction and each having a lens-shaped region with a convex surface facing the display unit.

Abstract: The invention relates to a stereovision optometry apparatus comprising: a 3D display unit for displaying 3D image; a reference 2D display unit for displaying reference 2D image; an eyepiece in opposite side of the 2D display unit configured to view the images; a reflective minor in opposite side of the 3D display unit configured to move toward and away from the 3D display unit; and a half minor arranged between the 3D display and the reflective mirror and disposed at a point where propagation paths of the 2D image and the 3D image intersect; wherein the 2D image penetrates through the half mirror to reach the eyepiece; wherein the 3D image penetrates the half mirror to be reflected on the reflective mirror and then the reflected image is reflected on the half mirror to reach the eyepiece.