Abstract: Provided herein are devices, systems and methods for evaluating the eye. For example, the devices, systems and methods are optionally used for evaluating the visual potential of an eye.

Abstract: A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels.

Abstract: An ophthalmologic laser system and an operating method. The laser system includes a laser, a scanner unit, a focusing lens and a beam splitter that directs radiation that reaches the beam splitter from the direction of the area of examination through a confocal aperture orifice onto a detector. The invention also includes a control unit with which a cornea arranged in the examination area can be irradiated by the laser at illumination laser power and detection light can be registered by the detector. The cornea is scanned in three dimensions, in that the cornea is irradiated at multiple points and detection light is registered from there. Based on the detection light, a laser cut in the cornea is identified and the form and/or position of the laser cut calculated. The invention further relates to refractive laser surgery.

Abstract: A tonometer for measuring intraocular pressure of an examinee's eye in a non-contact manner, comprises: an arithmetic part for calculating the intraocular pressure; a fluid blowing unit for blowing a fluid at a cornea of the examinee's eye through a nozzle; a projecting optical system for projecting light onto an anterior segment of the examinee's eye through the nozzle, the system including a light source and a condensing lens; and an imaging optical system for imaging a cross-sectional image of the anterior segment, the system including an imaging lens and an imaging elements.

Abstract: Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL.

Abstract: A device (20) and methods for concurrently taking multiple partially overlapping still or video images (60) of the iridocorneal angle (12) of an eye (1). Device (20) typically comprises a single chassis (100) with an outer surface (101) that approximately matches the curvature of the ocular surface (4). Multiple discrete optical imaging systems (200) are aimed through the cornea (3) and the anterior chamber (17), producing non-coplanar optical paths (21) directed towards corresponding partially overlapping zones (11) of the iridocorneal angle (12). Each system (200) may comprise one or more optical lenses (210, 211), with either fixed or variable position, and a corresponding digital sensor (220) or portion of a larger common shared digital sensor (221).

Abstract: The invention comprises an apparatus for measuring the relative thickness of the lipid layer component of the precorneal tear film on the surface of an eye after distribution of the lipid layer subsequent to blinking is disclosed. An illuminator directs light to the lipid layer of a patient's eye. The illuminator is a broad spectrum light source covering the visible region and is a lambertion light emitter such that the light source is specularly reflected from the lipid layer and undergoes constructive and destructive interference in the lipid layer. A collector collects and focuses the specularly reflected light such that the interference patterns on the tear film lipid layer are observable. The collector also produces an output signal representative of the specularly reflected light which is suitable for further analysis, such as projection on to a high resolution video monitor or analysis by or storage in a computer.

Abstract: An ophthalmologic photographing apparatus includes an illumination unit configured to illuminate a subject's eye with one of infrared light and visible light, an input unit configured to input a signal to the illumination unit, a measurement unit configured to measure an input time of the signal from the input unit, a detection unit configured to detect that the input time is a predetermined time or longer, and a control unit configured to control the illumination unit according to a detection result by the detection unit to switch from the infrared light to the visible light.

Abstract: The present application discloses a wearable computing device having a plurality of components, with the weight of the components being evenly distributed on the wearable computing device. One embodiment may include a frame having a front portion and at least one side-arm extending therefrom. The at least one side-arm has a first end and a second end. The wearable computing device further includes a lens connected to the front portion of the frame and at least one display element mounted to the lens and to the first end of the at least one side-arm of the frame by a tensile member. An electronic device is mounted to the second end of the at least one side-arm of the frame to counterbalance the mass located at the front portion of the frame. The electronic device may include batteries, circuitry, processors, computers, and other electronic components.

Abstract: Ophthalmic apparatuses, systems and methods are disclosed. One embodiment is an ophthalmic scanning apparatus including a laser operable to emit a laser beam, a scanning mirror operable to scan the laser beam over at least a +/?15 degree scan, and a lens system operable to receive the laser beam from the scanning mirror and direct the laser beam to a spot on an image plane. The spot has a root mean square radius of less than about 3.8 microns over the +/?15 degree scan. Further embodiments include methods of modeling and determining corrective prescriptions for patient's eyes. Additional embodiments are described herein.

Abstract: A method for judging whether obtainment of information on a three-dimensional image of a given portion of an examinee's eye that is obtained by OCT (Optical Coherent Tomography) is successful or not, the method involves processing the three-dimensional image information on the given portion that is obtained using an OCT optical system, where the OCT optical system is arranged to obtain a tomographic image of the examinee's eye, and obtaining an OCT front image of the given portion; and detecting a positional deviation of the OCT front image by image processing to judge whether the obtainment of the three-dimensional image information is successful or not based on a result of the detection.

Abstract: When an observation state by an infrared LED 10 is changed to a photographing state by a xenon lamp 3, a movable mirror 16 is pulled upward and an optical path is switched to an image sensor 17 side. A light guide 22a is shifted by an alignment index drive motor 23 so that an incident portion of an alignment index is shifted from a visible LED 22b to direct to an infrared LED 22c. An outgoing portion of the light guide 22a is set at a position where an image is formed on the image sensor 17 by a wavelength of the infrared LED 22c when an operation distance is appropriate. While changing a luminescent color, a position of a luminescent point of the alignment index is changed by switching the LED by the shift of the light guide 22a.

Abstract: A method for measuring the relative thickness of the lipid layer component of the precorneal tear film on the surface of an eye. Light is directed to the lipid layer of a patient's eye with an illuminator that is a broad spectrum light source covering the visible region and is a lambertion light emitter such that the light source is specularly reflected from the lipid layer and undergoes constructive and destructive interference in the lipid layer. The specularly reflected light is collected and focused using a collector such that the interference patterns on the tear film lipid layer are observable. The collector also produces an output signal representative of the specularly reflected light which is suitable for further analysis.

Abstract: An eyesight testing apparatus includes an imaging device for virtual imaging a test object located within a focal length of the imaging device and imaged at different distances into eyes of a subject located in a focal point of the imaging device, an optical deflection device arranged in a beam path between the imaging device and the test object to deflect the beam path by 180°, wherein the deflection device is displaceable in the direction of the beam path and the test object is not, a monitor device that generates the test object and that comprises a single monitor, optical components lying in the beam path sized so that both eyes are able to take part in a test, and so a partial beam path is formed for each eye, and a blocking device arranged in the beam path, which comprises two LCD blocking elements for the partial beam paths.

Abstract: The measurement method involves a step for displaying on a display screen an image in which one corresponding region exclusively that has been selected from regions provided has a contrast difference when on and when off; a step for enlarging the contrast difference in the image display in cases which an operation for an operation unit accompanying the flickering perception of a subject is assessed to not be correctly specifying the one aforementioned selected region, and, in cases which a correct specification has been assessed, recording the contrast difference at that point in a recording unit as the measurement contrast difference; and a step for assessing whether the aforementioned recorded measurement contrast difference has converged, reducing the contrast difference when convergence has not been assessed, and determining the convergence value of the aforementioned measurement contrast difference as information corresponding to the flickering perception threshold when convergence has been assessed.

Abstract: In a photometry device, photopic vision luminance Lp is measured by a first luminance measuring unit including a first light filter 4 and a first photoelectric converter 5, and scotopic vision luminance Ls is measured by a second luminance measuring unit including a second light filter 6 and a second photoelectric converter 7. A calculation part 8 calculates mesopic vision luminance Lmes based on a measurement value (photopic vision luminance Lp) of the first luminance measuring unit and a ratio of a measurement value (scotopic vision luminance Ls) of the second luminance measuring unit to the measurement value (photopic vision luminance Lp) of the first luminance measuring unit. Consequently, the photometry device can improve measurement accuracy of the brightness (mesopic vision luminance) in mesopic vision.

Abstract: An operating microscope system (200) for ophthalmology, particularly vitrectomy, is proposed, which comprises an operating microscope (10) with a microscope illumination (15) and a wide-angle device (20) arranged on the objective side in front of the operating microscope (10), the wide-angle device (20) comprising a wide-angle lens (21) arranged on the object side of the wide-angle device (20) and a prism arrangement (22) for righting the image, arranged on the microscope side of the wide-angle lens (21), wherein the wide-angle device (20) comprises an illuminating unit (25) which is arranged so as to illuminate an object (40) arranged in front of the wide-angle lens (21) through the wide-angle lens (21) by means of an illuminating light (29).

Abstract: A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system.

Abstract: A scanning laser ophthalmoscope (SLO) that includes at least one adjustable scanning system adapted for a variable field of view; at least one light source having at least a first spectral emission band suitable to effect at least one of a fluorescence signal and a reflectance signal from a retinal cell; and at least one detector configured to detect at least two different spectral bands from the at least one of the fluorescence and reflectance signals.

Abstract: A fluorescence image acquisition method including: irradiating an eyeground with a short-pulse beam of light for exciting a fluorescent dye; setting the time point of emission of the light as a reference, measuring the intensities of luminescence of the fluorescent dye at two different times which are predetermined periods of time after the reference, determining the ratio between the intensities of luminescence at the two different times, and detecting the intensity of luminescence of the fluorescent dye having marked a target by using the ratio; and generating a fluorescence image of the fluorescent dye having marked the target, based on the results of detection by the detecting step.

Abstract: An ophthalmic endoillumination system comprises a self-contained power source and a laser light source powered by the self-contained power source to produce light. The system further comprises an elongated member sized for insertion into an eye and for conducting the light produced by the laser light source.

Abstract: An eye tracking apparatus for monitoring the movement of a user's eye, the apparatus including: a display for displaying an image; an eye imaging sensor for monitoring the user's eye and for providing an output indicative of the user's point of regard in the user's field of vision; an optical combiner arranged, in use, in optical communication with the display, the eye imaging sensor and the user's eye; said optical combiner arranged to receive the displayed image from the display, to project said image into the user's field of vision, to receive electromagnetic radiation reflected from the user's eye and to pass said reflected radiation to the eye imaging sensor; wherein the optical combiner is adapted to substantially correct for aberrations in the reflected radiation introduced therein by the optical combiner.

Abstract: An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation.

Abstract: A monitor is used to display a visual acuity test operated by software from an associated computer. A patient is spaced a predetermined distance from the monitor during the testing procedure, and individual, multiple LED housings are equally spaced about a center point of the monitor to direct light toward the patient during at least a portion of the test procedure. The light emanating from the individual housings is a diffuse, unfocused light to simulate glare, and the intensity of the light may be selectively altered. Conducting acuity testing under glare conditions determines if there is any reduction or fall off in the patient's acuity vision under such circumstances and provides an indication of whether the patient may require cataract surgery or has another ocular problem.

Abstract: The present invention relates to an instrument for eye (E) examination, the system including an imaging system (2) to produce images of a portion of the eye to be examined; a projection system (3) to project a stimulus of visible light on a location in the portion of the eye to be examined and a background light on the portion of the eye to be examined; in which the projection system (3) has a telecentric design to uniformly project the stimulus and the background and includes a light source (114) and a movable mirror (112) which is moved according to the location of stimulus projection.

Abstract: An adaptor adapts an SLR camera for use as an ophthalmic viewing and imaging device. The adaptor is mounted to the camera between the camera body and the camera lens, and includes optical components arranged to direct illumination of the interior of the eye. The adaptor includes a first light source configured to provide a maximum level of illumination that is sufficient to identify structures of interest within an interior of an eye. The adaptor directs light from a second, external source to provide a level of illumination sufficient to obtain a fundus image. Optical components within the adaptor define a first optical pathway for directing light from the first light source to the lens, a second optical pathway for directing light from the second light source to the camera lens, and a third optical pathway for directing light from the camera lens through the adaptor to the camera.

Abstract: Devices, systems, and methods for measuring wave fronts generated by a lens for an eye are provided. In some embodiments, a device for measuring wave fronts generated by a lens for an eye includes a radiation source for emitting test radiation to be directed at the lens and a sensor device for detecting wave fronts of incident test radiation after interaction with the lens, wherein the sensor device scans the test radiation after interaction with the lens at a scanning frequency which is at least equal in size to the frequency at which changes in wave fronts occur in the test radiation after interaction with the lens.

Abstract: A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values.

Abstract: An ophthalmoscope includes a display, a therapy beam source, and a drive unit. The display is configured to display a live image of a patient's eye. The therapy beam source is configured to apply therapy beam pulses onto the eye. The drive unit is configured to superimpose onto the live image of the eye a virtual pattern of positions intended for the application of therapy beam pulses.

Abstract: An ophthalmoscope includes a therapy beam source configured to apply therapy beam pulses onto an eye and a drive unit configured to store information about the therapy beam pulses applied onto the eye.

Abstract: An ophthalmoscope comprising includes a display, a therapy beam source, and a drive unit. The display is configured to display a live image of a patient's eye. The therapy beam source is configured to apply therapy beam pulses onto the eye. The drive unit is configured to superimpose onto the live image of the eye target positions intended for the application of therapy beam pulses.

Abstract: An ophthalmic apparatus for measuring spatial distances within a patient's eye is disclosed. The apparatus can be used to measure, for example, the capsular bag depth in an aphakic eye. The spatial measurement system can direct laser light into a patient's eye so that a portion of the light is scattered by the capsular bag. The scattered light can be directed to a detector where spots can be formed corresponding to the locations on the capsular bag from which the light was scattered. The distance from the cornea to the capsular bag can be determined based, for example, at least in part on the distance between the spots formed on the detector. In some embodiments, the apparatus can include a surgical microscope and/or a wavefront aberrometer. In some embodiments, an alignment system can be used to precisely position the apparatus relative to the patient's eye.

Abstract: An apparatus arranged to analyze a structure, the apparatus comprising: a control unit; a light source arranged to irradiate a target area of the structure; and a light detector in communication with said control unit, and arranged to detect said irradiated light from said light source after interaction with the target area, said control unit arranged to: transform amplitudes of the detected light to the optical thickness domain, said transform comprising a bilinear transform; determine morphological information of the target area responsive to said performed transform. The determined morphological information is optionally displayed within a three dimensional view of the target area.

Abstract: The present disclosure provides a pupillary light reflex (PLR) system, wherein the PLR system includes a remote tracking and imaging system that is structured and operable to generate and acquire high resolution pupil stimulus and response data from a test subject while the test subject is moving and is disposed a distance from remote tracking and imaging system that is greater than or equal to one-third of a meter. The PLR system additionally includes a computer based system controller that is structure and operable to execute PLR software to control the operation of the remote tracking and imaging system and compute PLR information based on the pupil stimulus and response data acquired as the test subject is moving.

Abstract: An LED variable light source of this invention includes a super luminescent LED for generating a continuous light signal having a logarithmically controllable light intensity maintainable over a broad spectral range. The LED variable light source also includes a light lens for receiving and focusing the generated continuous light signal and a controller for controlling the light signal's intensity and frequency range via a driver interface, constructed and arranged to allow a user to input LED variable light source control inputs.

Abstract: When pattern recognition of a fundus image is started in step S1, output from a fundus image sensing unit is compared with a regional pattern of stored fundus image specific regions in step S2, and it is decided whether to proceed to pattern recognition. If pattern recognition is possible, based on an AF evaluation value, the lens is driven, with which automatic focusing is completed.

Abstract: A device for performing distance measurements on an eye. The device includes an interferometer, focuses at least one measurement beam records backscattered radiation and interferometrically generates a measurement signal displaying structures of the eye by time-domain, spectral-domain or Fourier-domain coherence reflectometry, has an adjustment apparatus for laterally and/or axially displacing the focus in the eye or for varying a polarization state of the measurement beam and has a control apparatus which actuates the interferometer, wherein the control apparatus generates a plurality of A-scan individual signals from the backscattered radiation, combines these to an A-scan measurement signal and actuates the adjustment apparatus for displacing the position of the focus or for varying the polarization while recording the backscattered radiation from which the control apparatus generates the A-scan individual signals is being recorded.

Abstract: In order to detect a deterioration status of an imaging light source in an accurate manner, an ophthalmologic apparatus includes a light intensity detection unit configured to detect a light intensity of light emitted from the imaging light source, a determination unit configured to determine a status of the imaging light source on the basis of the light intensity detected by the light intensity detection unit and a light emitting time of the imaging light source, and a display control unit configured to display, on a display unit, the status of the imaging light source on the basis of a determination result by the determination unit.

Abstract: The invention relates to an illumination system (10) and an illumination method for an opthalmological analysis apparatus, in particular an analysis apparatus for measuring an intraocular pressure in an eye, wherein the analysis apparatus includes an actuation device (11) with which a puff of air for deforming a cornea (14) can be applied to the eye (12) in the direction of an optical axis (15) of the eye, wherein the illumination system includes at least one illumination device (23) with which the cornea of the eye can be illuminated by a slit light in such a way that a sectional image (27) can be generated in an illumination plane coinciding with the optical axis, wherein the illumination device is formed so that an illuminating beam path (28) of the illumination device oriented towards the eye is arranged at an angle ? relative to the optical axis (15).

Abstract: A microscope (1) having a principal observer's beam path (2a) and an assistant's beam path (3a, 3b), and having an optical beam splitter device (5, 15) for generating a documentation beam path (4), where the beam splitter device (5, 15) in a first position outcouples the documentation beam path from the principal observer's beam path (2a), and in a second position outcouples it from the assistant's beam path (3b).

Abstract: An ophthalmic apparatus is provided with a light source, an optical measurement system, an optical reference system, an optical calibration system, a light receiving element, and a processor. The light receiving element receives an interference light for measurement produced by both the reflected light guided by the optical measurement system and the reference light guided by the optical reference system, and also receives an interference light for calibration produced by the calibration light guided by the optical calibration system and the reference light guided by the optical reference system. The processor determines a position of a measuring portion inside an eye to be examined by Fourier-analyzing the interference light for measurement and the interference light for calibration.

Abstract: A fundus camera includes an irradiation unit including a plurality of LED elements and a fluorescent material that emits light by being excited by light emitted from the LED elements and configured to emit light that is generated by combining light emitted from the LED elements and excitation light from the fluorescent material, an illumination optical system configured to irradiate an eye fundus of a subject's eye with the light emitted by the illumination unit, an observation unit configured to form an eye fundus image by receiving light, which is emitted from the illumination unit and reflected from the eye fundus, and an imaging unit configured to pick up the eye fundus image formed by the observation unit.

Abstract: An illumination device (10) is described for an observation device (100) having one, two or more observation beam paths (16, 17), each with at least one observation beam bundle, particularly for an operating microscope, the illumination device having at least one light source (11, 12) for producing at least one illumination beam path (14, 15) with at least one illumination beam bundle for illuminating an object to be observed, in particular, an eye to be observed, the illumination device (10) having at least one illumination optics unit, which has a collector (18, 22), and the at least one illumination beam path (14, 15) or the at least one illumination beam bundle running coaxially to an observation beam path (16, 17) or observation beam bundle.

Abstract: The present invention relates to an Illuminating device for an operating microscope in ophthalmic surgery, having at least one light source (151), at least one lens (152, 155), at least one luminous field diaphragm (153), and at least one optical deflector (156), wherein in order to provide an illumination beam path (119) light from the light source (151) is guided through a main objective (107) which is disposed between the deflector (156) and an eye (180) that is to be observed, and on to the eye that is to be observed, wherein a device (154) that can be introduced into the illumination beam path (119) for acting upon the illumination beam path (119) with a structure that comprises transparent and non-transparent or opaque regions such that this structure can be imaged on or close to the retina (180b) of the eye (180) that is to be observed.

Abstract: System and methods for testing and/or training a subject's vision and coordination abilities are provided. More specifically, the method may include testing various aspects of the subject's vision and coordination abilities, such as eye-hand coordination, split attention, reaction time, body coordination, etc. By using various tests, an efficient examination may be administered. In accordance with the invention, an individual may be subjected to such a method of testing and/or training at a unitary center capable of presenting such tests to the individual, receiving input from the individual, and processing the received input. Such a unitary test center may further be configurable, so that the tests administered may vary based on the needs of the individual. The received input may then, for example, be used to compute data related to the user's vision and coordination abilities, both overall and for each individual test.

Abstract: One embodiment disclosed is a compact wavefront sensor module to be attached to or integrated with an ophthalmic instrument for eye examination and/or vision correction procedures. The front lens for relaying the wavefront from the eye to a wavefront sampling plane is positioned at the optical input port of the wavefront sensor module. The front lens is shared by the wavefront sensor and the ophthalmic instrument, and the wavefront sensor module can be made very compact while still being able to cover a large eye wavefront measurement diopter range. Another embodiment disclosed is an ophthalmic device for measuring properties of a subject eye including an ophthalmic instrument integrated with the wavefront sensor module.

Abstract: An ophthalmic apparatus includes an aberration correction unit which corrects aberration occurring in light irradiating an eye to be examined; and a common optical system which is commonly provided for an optical path of irradiated light on the aberration correction unit and an optical path of reflected light from the aberration correction unit. The common optical system includes at least one optical element, and areas through which the irradiated light and the reflected light respectively pass overlap each other on the optical element.

Abstract: To provide an optical imaging apparatus capable of providing a high lateral resolution in a wide region and easily adjusting prior to imaging for imaging an optical image of an eye to be inspected which is an object, and a method for imaging an optical image. The optical imaging apparatus in which a beam from a light source is used as a measuring beam, and an image of an object is imaged based on intensity of a return beam formed of the measuring beam irradiated to the object has the following: first, an optical device for focusing the measuring beam on the object; next, a aberration detecting device for measuring a aberration of the return beam; and a focus adjusting device for adjusting the optical device based on the aberration detected by the aberration detecting device.

Abstract: There is provided an apparatus for irradiating a beam at a user's eye gaze point and an operation method thereof. The apparatus includes an eye gaze point detecting part analyzing a movement of a user's pupils and detecting the user's eye gaze point, and a beam irradiation part irradiating a beam at the user's eye gaze point detected by the eye gaze point detecting part. The apparatus detects the user's current eye gaze point and irradiates the beam at the user's detected eye gaze point, thereby allowing for the performance of desired control with greater accuracy.

Abstract: A pattern-generating intraocular probe is provided that includes a cannula including a diffractive optical element (DOE), the DOE being patterned such that an on-axis illumination of the DOE produces an emitted beam forming a linear pattern; and a handpiece connected to a proximal of the cannula.