Abstract: An apparatus for producing a fundus image includes: a processor and a memory; an illumination component including a light source and operatively coupled to the processor; a camera including a lens and operatively coupled to the processor, wherein the memory stores instructions that, when executed by the processor, cause the apparatus to: execute an automated script for capture of the fundus image; and allow for manual capture of the fundus image.

Abstract: Systems and methods for high-resolution, wide-angle viewing of a retina of an eye using an ophthalmic microscope that can view a high-resolution image of a retina formed using a wide field of view optical system. A wide field of view optical system can involve a first lens having a diffractive surface on at least one surface and a second lens housing in a shared housing. A wide field of view optical system can involve one or more lens formed from an optical grade polymer and manufactured at a cost that allows the lens to be disposable.

Abstract: Systems and methods for use in tri-spot point spread function imaging are provided that include a phase mask. The phase mask includes three partitions that each include a subset of the total area that is asymmetrical to other partitions. Each partition includes a phase delay ramp aligned along a phase delay axis, and includes a gradient of phase delays. Each phase delay axis is oriented in a different direction with respect to each other. Included is a source that outputs an excitation beam into a sample containing at least one light emitter that emits a radiation pattern when illuminated. Included is at least one sensor arranged to capture at least one image of the radiation pattern and a phase mask positioned between the at least one emitter and the at least one sensor. The phase mask is configured to produce a tri-spot point spread function.

Abstract: A method of determining at least one selection parameter for selecting an intraocular lens to be inserted into an eye; the method comprises reading, by a data processing system, data indicative of an axial position of at least a portion of an anterior surface of an at least partially empty capsular bag of the eye, relative to an optical axis of the eye. The method further comprises determining an axial position parameter, which is representative of the axial position of the portion of the anterior surface, depending on the data. The method further comprises determining the at least one selection parameter for selecting the intraocular lens depending on the determined position parameter.

Abstract: An ophthalmic imaging system for imaging an axial and lateral point-spread of light distribution pattern of light reflected from a surface of an animal or human eye includes an ophthalmic imaging apparatus adapted to generate an illumination light of a surface of the eye. A detection arm includes a digital micromirror device (DMD) having an array of mirror facets. A first detector is disposed to receive a first portion of the axial and lateral point-spread of light distribution of light, and one or a plurality of additional detectors are disposed to receive a light from one or a plurality of different portions of the axial and lateral point-spread of light distribution pattern of light. A detection arm, a method for imaging axial and lateral point-spread of light distribution components, and a method for auto-centering a distribution pattern in an imaging plane of a DMD device are also described.

Abstract: An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope.

Abstract: A method for determining a density of an integrated circuit layout includes analyzing the IC layout represented by polygons. A portion of the IC layout is analyzed within a sample window located at a sample point. A local density of polygons within the sample window is determined, where an area of one or more of the polygons within the sample window is weighted according to a weighting function giving unequal weight to polygon area based on a position within the sample window. The local density values at each sample point in an array of sample points can be used to determine a layout density and to identify locations of density violations.

Abstract: A laser scanner device adapted to be mounted to a vehicle, the device comprising a LIDAR module, the LIDAR module comprising at least one laser source, characterized by a horizontal field of view of at least 60°, an instantaneous vertical field of view of at least ±2°, a scan resolution of at least one point per 0.8° in horizontal and vertical direction, and a frame rate of at least 10 Hz for scanning at least the entire horizontal and instantaneous vertical field of view with said scan resolution.

Abstract: A head mounted display (HMD) comprises an eye tracking system configured to perform a calibration process using an eye tracking system of the HMD that includes determining a pupillary axis and/or determining an angular offset between the pupillary axis and the eye's true line of sight. The eye tracking system obtains an eye model captures images of the user's pupil while the user is looking at a target or other content displayed on the HMD. In some embodiments, the calibration process is based on a single image of the user's eye and is performed only once. For example, the process can be performed the first time the user uses the HMD, which stores the calibration data for the user in a memory for future use.

Abstract: Methods and apparatuses for fundus imaging are presented that use sequential selective illumination patterns to suppress unwanted reflections, scattering and haze from various optical components of a fundus-viewing instrument. This is particularly the case with those unwanted reflections produced by the objective lens contained within said instrument.

Abstract: Provided is a coating apparatus that includes: a discharge unit that discharges a liquid on an object; a measurement unit that is able to be disposed at a position facing a discharge surface of the discharge unit and measures a height position of the discharge surface using the facing position as a reference position; and a controller that calculates a thickness of an attached substance containing a material of the liquid attached to the discharge surface based on the height position measured by the measurement unit and determines implementation of a maintenance treatment based on the calculated thickness of the attached substance.

Abstract: Disclosed is an optometry measuring scale and method for determining a visual refraction value of an individual. According to the invention, the optometry measuring scale comprises a plurality of processed optotypes associated with a plurality of visual refraction corrections, wherein each processed optotype results from applying to a source optotype a determined image processing associated with a defined visual refraction correction, and an identification system for determining each defined visual refraction correction associated with each processed optotype.

Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Abstract: A visual stress assessment device is provided comprising a plurality of coloured light sources, each adapted to produce light of a predetermined hue, and a white light source. The white light source and the coloured light sources each comprise a plurality of light emitting diodes. A chamber is provided having an interior comprising a viewable region configured to provide a sample for inducing visual stress, wherein said viewable region is arranged to be illuminated by the white light source and the coloured light sources. A controller is configured to selectively operate the white light source and coloured light sources such that only one or both of a first of the coloured light sources and a second of the coloured light sources are operated simultaneously with the white light source, whereby their respective emitted light is observable in the viewable region by a user at a predetermined hue and saturation.

Abstract: An SS-OCT apparatus includes a clock generator configured as an interferometer including an optical path through which part of light emitted from a light source passes, the optical path being split into a first optical path and a second optical path having an optical path length difference relative to the first optical path, to generate a clock used by a converter sampling an analog signal; a tomographic image obtaining unit configured to obtain a tomographic image of a fundus by using a digital signal converted from the analog signal sampled by the converter using the generated clock; and a scan unit configured to scan illumination light across the fundus at a scan angle of 47 degrees or more in air. The tomographic image obtaining unit is configured to obtain a tomographic image of the fundus at a distance of 4.0 mm more within an eyeball in a depth range.

Abstract: An instrument and method for analyzing a gas leak. The instrument can obtain a time series of spectra from a scene. The instrument can compare spectra from different times to determine a property of a gas cloud within the scene. The instrument can estimate the column density of the gas cloud at one or more locations within the scene. The instrument can estimate the total quantity of gas in the cloud. The instrument can estimate the amount of gas which has left the field of view of the instrument. The instrument can also estimate the amount of gas in the cloud which has dropped below the sensitivity limit of the instrument.

Abstract: An apparatus and a method for measuring blood flow of vessels are provided. The apparatus includes a light source, a light splitting module, a reference arm module, a sample arm module, a probing module, and a control system. The sample arm module includes a scanning unit and an optical-path shifting device. A probe light is obtained from the light splitting module, and a central line of a main light of the probe light extends through a rotation axis of the scanning unit. The probe light is reflected by the scanning unit to the optical-path shifting device. When the optical-path shifting device is rotated between a first position and a second position respectively, the probe light scans a vessel in fundus to obtain a first phase shift signal and a second phase shift signal blood flow rates and total blood flow of all the vessels near an optic disc are determined.

Abstract: Provided are a method and system for identifying and classifying the owner, age and health of an optic nerve head and its vasculature based on analysis of vector relationships of blood vessels and the neuroretinal rim within an image of the optic nerve head to each other.

Abstract: Embodiments of the present application disclose a light field display control method and apparatus and a light field display device. The light field display control method comprises: determining a partial depth distribution sub-region of content according to at least depth distribution information of the content; and tilting a first lenslet with respect to an original plane of a lenslet array of a light field display device according to at least a display depth of field (DoF) range of the light field display device and the depth distribution sub-region, wherein the first lenslet is a lenslet that is in the lenslet array and affects display of a first object, and the first object is a part, which is located in the depth distribution sub-region, of the content. The present application can improve display quality of an object, which is located in a partial depth distribution sub-region, of content to be displayed or content being displayed.

Abstract: An ophthalmological device emits light from a measurement optical system to an eye to be examined and calculates a dimension along the eye axis of a target portion of the eye from interfering light composed of reflected light from the eye and reference light. The measurement optical system includes incidence position changing member that changes the incidence position of light emitted to the eye, and driving unit that drives the incidence position changing member so as to scan at the incidence position of emitted light in a predetermined region of the eye. The predetermined region is a region where a straight line passes through when the straight line radially extended from the cornea apex of the eye is circumferentially moved over a predetermined angle range in the case of the eye is viewed from the front.

Abstract: A method is provided for determining the thickness of a retina. A single beam is used to illuminate the retina of a patient. Interference between reflections off different layers within the retina cause autocorrelation in the returned signal. An FFT applied to the autocorrelation signal reveals the strongest autocorrelation, which indicates the distance between the nerve fiber layer (NFL) and the layers between the inner segment/outer segment (IS/OS) and the retinal pigment epithelium (RPE), the dominant scatterers. By analyzing autocorrelation, a single beam can be used. This avoids the problem of movement of the patient, arising in the use of a standard OCT interferometer, resulting in a simpler and less expensive technique of measuring retinal thickness.

Abstract: An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit.

Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Abstract: A confocal scanner into which light from a light source is introduced via a multimode optical fiber includes: a disk unit that includes a rotary disk; and an optical system that irradiates the rotary disk with light from an emission end face of the optical fiber. The optical system includes an element that changes a size in which the emission end face of the optical fiber is projected onto the rotary disk.

Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Abstract: An illumination device has an optical device and an irradiation unit. The irradiation unit has a light source emitting a coherent light beam, and a scanning device capable of adjusting a reflection angle of the coherent light beam emitted from the light source. The light source has light sources emitting a plurality of coherent light beams having an identical wavelength range, the hologram recording medium has a recording area to be scanned with each of a plurality of coherent light beams reflected by the scanning device, and the recording area has an interference fringe that diffracts an incident coherent light beam. The optical device uses the plurality of coherent light beams diffracted by the interference fringe of the recording area so that each of the coherent light beams diffracted by the hologram recording medium is superimposed on at least one portion to reproduce the image of the reference member.

Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Abstract: A confocal scanner into which light from a light source is introduced via a multimode optical fiber includes: a disk unit that includes a rotary disk; and an optical system that irradiates the rotary disk with light from an emission end face of the optical fiber. The optical system includes an element that changes a size in which the emission end face of the optical fiber is projected onto the rotary disk.

Abstract: The present invention is directed to an indirect ophthalmoscopic system for imaging of the ocular fundus including a headband configured to hold a digital imaging device and a plus eyepiece lens in front of an eye of the examiner, with the plus eyepiece lens positioned in between the digital imaging device and the examiner's eye, such that the examiner is focused upon the display of the digital imaging device. The aperture of the digital imaging device receives light reflected from the ocular fundus of the patient's eye, emanating from the patient's pupil. The examiner examines the patient and composes the image of the ocular fundus directly in the display screen. In this way, what the examiner sees is captured by the digital imaging device. Stereoscopic imagery is obtained by optical means that create side-by-side virtual images of the aperture of the digital imaging device within the pupil of the eye.

Abstract: The invention relates to a lighting device (100), which is equipped for fastening to a surgical instrument (200) or, by means of adapter (90; 91), to a body part (92), in particular a finger of a surgeon or of an operating room assistant, in order to serve as a light source during a surgical operation, in particular within a body cavity or organ cavity of genuine or traumatic origin and in other body regions that are difficult to access. At least one pin (20) pointing outward from the wall of the housing (10) is arranged on the housing (10) of the lighting device (100) in a wall area (30) directed toward the surgical instrument in the fastening position, which pin has a light emitting opening (40) at the distal end of the pin and is designed for passing through an opening (220) of the surgical instrument or of the adapter (90; 91) and thus establishing a form-closed or force-closed connection to the opening. The pin (20) is preferably movable in order to achieve optimal illumination of the operation site.

Abstract: Portable lensmeters and portable lensmeter modules are disclosed. In one embodiment, a portable lensmeter module comprises a housing having an aperture formed therethrough and having a first slot formed therein for receiving and reversibly coupling to a lens; a light source disposed within the housing; and a microlens array disposed within the housing. The lens and the microlens array define an optical channel from the light source to the aperture when the lens is coupled to the housing; and a light detector of a mobile device is positioned adjacent to the aperture and at a focal point of the microlens array when the lensmeter module is mechanically coupled to the mobile device.

Abstract: A fundus image capture system operates to determine if the system has captured an image that identifies the fundus, a region of interest in the image, or the current field of view. According to the determination, the system can guide the user to operate the system to capture a desired fundus image.

Abstract: A multi-component method and device for improving vision for some with low vision conditions including age related macular degeneration (AMD) is disclosed. A plurality of co-pathological conditions that together make undistorted, clear and bright vision challenging are dealt with by managing the nature, amounts and patterns of light provided to the eye in a display embodiment. For example, a worn embodiment, in providing an improved image of the view ahead, modifies the frequency mix of incoming light, the relative intensities of light to different retinal locations and the color perception of the wearer while undistorting certain kinds of progressive distortion.

Abstract: A subjective optometry apparatus includes subjective measurement unit for subjectively measuring an optical characteristic of a subject eye, the subjective measurement unit including a calibration optical system that is disposed in an optical path of a light projecting optical system projecting a visual target luminous flux toward the subject eye and changes an optical characteristic of the visual target luminous flux. The subjective optometry apparatus includes objective measurement unit for objectively measuring the optical characteristic of the subject eye, the objective measurement unit including a measurement optical system that emits measurement light to a fundus of the subject eye and receives reflected light of the measurement light.

Abstract: Various embodiments of an eye imaging apparatus are disclosed. In some embodiments, the eye imaging apparatus may comprise a light source, an image sensor, a hand-held computing device, and an adaptation module. The adaptation module comprises a microcontroller and a signal processing unit configured to adapt the hand-held computing device to control the light source and the image sensor. In some embodiments, the imaging apparatus may comprise an exterior imaging module to image an anterior segment of the eye and/or a front imaging module to image a posterior segment of the eye. The eye imaging apparatus may be used in an eye imaging medical system. The images of the eye may be captured by the eye imaging apparatus, transferred to an image computing module, stored in an image storage module, and displayed in an image review module.

Abstract: Techniques are introduced to improve the ability of OCT to determine more accurately the nature of the flow of fluids in the eye, including faster measurements of the flow and a method to reduce geometric uncertainties due to eye movements.

Abstract: The present disclosure describes systems and methods to select fovea containing optical coherence tomography (OCT) images. The systems and methods described herein receive a plurality of OCT images. The portion of the OCT images are selected for further processing, where a line tracing the border between the retina and non-retina tissue is generated. A difference of the line is generated. Candidate OCT images are then generated responsive to the generated difference line. The lowest point among each difference lines generated for each of the OCT images is identified, and the OCT image to which the lowest point corresponds is identified as the fovea containing OCT image.

Abstract: A method for measuring the geometric parameters of the eye. These measurements, known by the term biometrics, are particularly significant for the calculation of intraocular lenses after previous refractive cornea surgery. OCT images and other images are recorded simultaneously, the intensity of the reflected light generated during the OCT image recordings being lower by a factor of 2, by a factor of 10 or by a factor of 100, than the intensity of the illumination light of the other image recordings. The solution provides a method for producing other image recordings, in addition to OCT recordings, in the form of representations of the sclera or of the fundus, or keratometric, topographic or biometric measurements, or even short image sequences, for instance, while aligning the device with the eye.

Abstract: In a method for interferometrically capturing measurement points of a region of an eye, a plurality of measurement points are captured by a measurement beam along a trajectory, wherein the same trajectory is passed over by the measurement beam in the region during at least a first iteration and a second iteration. The trajectory of the first iteration is rotated through an angle and/or displaced by a distance in relation to the trajectory of the second iteration in order to obtain a more homogeneous measurement point distribution.

Abstract: An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.

Abstract: An apparatus for the treatment and/or prevention of corneal diseases includes an applicator head. The applicator head includes a radiation source capable of exciting a non-toxic chromophore. A control is operable to activate the radiation source to radiate, wherein at least one of the following two conditions is met: the applicator head includes a sensor capable of measuring a signal dependent on a position of the applicator head relative to the cornea; or, the applicator head is configured to be in physical contact with the cornea. The control is operable to activate the radiation source to radiate depending on a signal measured by the sensor or to activate the radiation source when the applicator head touches the cornea, respectively.

Abstract: A six degree-of-freedom optical tracker system includes LEDs that are mounted on a structure, and are each configured to emit light. An LED controller is coupled to the LEDs and supplies drive current to each of the LEDs in a manner that causes the LEDs to sequentially and individually emit light. A single position sensing device that is spaced apart from each of the LEDs receives the light emitted from each of the LEDs and supplies position data for each LED. A processor receives the position data and determines the position and orientation of the structure relative to the single position sensing device.

Abstract: Sets, kits or stocks of anti-myopia lenses and methods for their use, that do not require a clinician to measure peripheral refractive error in the eyes of myopic patients. Lenses having peripheral powers or defocus set in accordance with central corrective power will cover almost all normal myopes not worse than ?6D central refractive error. For example, a kit or set of lenses (50, FIG. 15) can have multiple parts or sub-sets each with a compartmented container with lenses arranged according to increments of central corrective power. The lenses of the first part have four steps of peripheral power or defocus to provide therapeutic effect and, while the lenses of the second part also have four steps, the level of therapeutic effect is higher. Other examples of sets, kits and stocks, as well as examples of lenses themselves, are disclosed together with methods of use.

Abstract: A method for detecting objects (28) of interest comprises: receiving gaze tracking data (30) of a person looking at a collection of objects (28), the gaze tracking data (30) comprising information, at which points the person is looking; determining a map (42) of objects in the field of view of the person, the map (42) of objects indicating, at which position (44) an object in the collection of objects is arranged; determining gaze interaction events (48) for objects in the collection of objects by matching the gaze tracking data (30) to the map (42) of objects, wherein a gaze interaction event (48) for an object indicates that a specific gazing interaction has occurred with respect to the object; determining category characteristics (56) for at least those objects (28) having gaze interaction events (48), wherein a category characteristic (56) describes the object with respect to a specific object category (58); and determining at least one category characteristic (56) of interest in at least one object categ

Abstract: A method of screening a pupil of a subject to determine whether the pupil reflex resembles a canonical pupil reflex is disclosed. The method comprises the steps of stimulating the pupil with a stimulus source, such as a pupilometer and determining whether one of various pupillary response conditions is met.

Abstract: A method of automatically detecting a retinal feature using an ophthalmic imaging system can include: acquiring an optical coherence tomography (OCT) image of a retina; segmenting the OCT image; generating a metric based on the segmented OCT image; detecting the retinal feature based on the metric; and providing an indication of the detected retinal feature to a user. An ophthalmic imaging system can include: an OCT system configured to acquire an image of a retina; a computing device coupled to the OCT system and configured to segment the image, generate a metric based on the segmented image, and detect a retinal feature based on the metric; and an audio/visual/tactile device in communication with the computing device and configured to provide at least one of an audio, visual, and tactile indication of the detected retinal feature to a user.

Abstract: From OCT-measured data, only the image data of the choroidal vascular network present in the layer of the choroidal layer is selectively extracted, thereby accurately obtaining the thickness of the choroidal vessels and thickness of the choroidal vascular network from the image data, to allow for quantitative evaluation of the choroidal vascular network. The optical coherence tomography apparatus has an optical coherence tomography device, and a computer that processes the three-dimensional OCT tomographic images obtained based on the OCT-measured data acquired by the optical coherence tomography device. The computer functions as a means for selectively separating out only the images of the choroidal vessels from the three-dimensional OCT tomographic images to acquire image data of the choroidal vessels, and also as a means for obtaining the data to be used in the quantitative evaluation of the shape of the choroidal vessels based on the image data of the choroidal vessels.

Abstract: An information processing apparatus includes: a light emitting unit configured to emit light; an optical unit configured to induce an optical influence to the light from the light emitting unit, the optical unit having an astigmatic lens configured to generate astigmatism with a plurality of focal lengths; a detecting unit configured to detect the light emitted in the light emitting unit, radiated outside through the optical unit, and reflected by an object; and a measuring unit configured to measure a distance to the object based on astigmatism generated in the reflection light detected in the detecting unit.

Abstract: A head mounted display (HMD) comprises an eye tracking system configured to perform a calibration process using an eye tracking system of the HMD that includes determining a pupillary axis and/or determining an angular offset between the pupillary axis and the eye's true line of sight. The eye tracking system obtains an eye model captures images of the user's pupil while the user is looking at a target or other content displayed on the HMD. In some embodiments, the calibration process is based on a single image of the user's eye and is performed only once. For example, the process can be performed the first time the user uses the HMD, which stores the calibration data for the user in a memory for future use.

Abstract: An image processing device comprises an enhancement processing unit that enhances a speckle pattern in an ocular fundus tomographic image. A region-of-interest setting unit sets a desired region in the ocular fundus tomographic image with the enhanced speckle pattern as a region-of-interest, and a feature value extracting unit extracts a feature value of the speckle pattern in the region-of-interest. A disease determining unit makes disease determination for an ocular fundus on the basis of the feature value, and a mapping unit maps, in the ocular fundus tomographic image, a site of the ocular fundus that is determined to have a disease.