Abstract: A system for applying a treatment to an eye includes a housing having a first end and a second end, a contact element having an open end and a closed end, and a light source disposed within the housing and configured to direct light toward the open end. The contact element is coupled to the first end of the housing at the closed end. The open end is configured to be positioned at an eye.

Abstract: The invention provides a method and system for non-invasive analysis. In particular the inventive system relates optical techniques involving infra-red, visible or ultra violet radiation for imaging and analyzing surface and sub-surface structure of tissue and components of the eye. Embodiments of the invention further include Optical Coherence Tomography (OCT) techniques for sub-surface imaging and analysis, and incorporate instruments such as ophthalmoscopes, fundus cameras, for non-invasive imaging and analysis.

Abstract: A vision testing device includes a hood having an interior space defining a first side and a second side. A first electronic device is operable to project a first image to the first side and a second electronic device is operable to project a second image to the second side. The first image and the second image comprise computer-generated images. A mirror extends from the first side to the second side and is positioned to reflect the first image and the second image. A first viewing lens is in optical communication with the first side and is configured to receive the first image reflected from the mirror. A second viewing lens is in optical communication with the second side and is configured to receive the second image reflected from the mirror.

Abstract: Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.

Abstract: In an ophthalmic apparatus, reflected light from an eye to be examined, illuminated by an observation light source emitting continuous light, is split by a light splitting unit to enter an optical viewfinder, and a fundus image where an examiner can observe the fundus is provided by the optical viewfinder. An imaging unit sets the light quantity of the observation light source by using a moving image obtained by imaging the split and reflected light. After completing the setting of the light quantity, the imaging unit moves the light splitting unit from an optical axis, illuminates the fundus by driving the imaging light source, and obtains a still image.

Abstract: A progressive addition lens design device for designing progressive addition lenses to permit a patient to experience a variety of distance vision fields and reading vision fields. The device includes a frame adapted to hold in place in front of each of a patient's eyes three lens mounts, each lens mounts being adapted for adjustment in rotation and side-to-side translation. A third lens displaying the patient's base prescription mounted in one of the lens. A first and second lens is mounted in the other two lens mounts. The first and second lenses, each have a transition zone and a power ramp zone and they have complementary surfaces so that when stacked together they create a standard progressive addition lens with a distance vision field, a reading vision field and transition region.

Abstract: A module for use with a mobile device to measure an aberration of a patient's eye includes a light shaft having a proximal end and a distal end, and a light source. The light shaft includes a first plurality of optical components arranged to direct light along a first light path from the light source to the proximal end, and a second plurality of optical components arranged to direct light along a second light path from the proximal end to a light detector of the mobile device. A connector at the distal end includes at least one guide component for positioning the distal end adjacent to the light detector. When the distal end is positioned adjacent to the light detector, the first plurality of optical components directs light along the first light path and the second plurality of optical components directs light along the second light path.

Abstract: An ophthalmologic apparatus of an embodiment includes an examination part, a moving mechanism, an information obtaining part, and a controller. The examination part is configured to include an optical system for optically examining an eye. The moving mechanism is configured to move the optical system. The information obtaining part is configured to obtain information for carrying out position matching of the optical system to the eye. The controller is configured to carry out first control for the moving mechanism based on the information obtained by the information obtaining part to move the optical system, determine whether information optically obtained by the optical system after the first control is appropriate to the examination or not, and when it is determined that this information is not appropriate, carry out second control for the moving mechanism in response to a prescribed trigger to move the optical system.

Abstract: An electronic ophthalmoscope combining scanning laser (SLO) and optical coherence (OCT) technologies is further equipped with a pulsed laser source in the femtosecond (fs) range. The goal is primarily to selectively disrupt the photoreceptor mosaic of the retina or Bruch's membrane in a pattern that minimizes loss of visual functioning, and to reduce thereby the metabolic load of the outer retina. Using a beam splitter, one embodiment combines the SLO scanning beams with the therapeutic laser beam and aiming beam. The therapeutic channel uses an independent x/y positioner and micro-deflector. Because the duty cycle is appropriate, a second embodiment can use the SLO scanners to also scan a modulated therapeutic laser beam. A biometric OCT probe, helpful in focusing, can be integrated in both configurations. A method is also disclosed to represent the tilting of the retina at a specified location.

Abstract: The invention relates to an arrangement with a spectacle lens having a changeable optical effect and with an effect-setting apparatus for setting the optical effect of the spectacle lens on the basis of intended-setting data. A memory apparatus stores first intended-setting data for setting a first predetermined optical intended effect, which was established from a first refraction measurement on an eye of a spectacles wearer for whom the spectacle lens is destined, and for storing second intended-setting data for setting a second predetermined optical intended effect, which was established from a second refraction measurement on the eye, and also a supply apparatus for supplying the first intended-setting data or the second intended-setting data to the effect-setting apparatus.

Abstract: A light source generates light to fixate a gaze of an eye to be examined, while a scanning unit performs main-scanning and sub-scanning on a fundus of the eye to be examined with the light from the light source.

Abstract: A noninvasive method and apparatus for determining analyte concentration (e.g., glucose) in a subject that includes measuring light refraction from at least a portion one or more structures. One example of such structure is the subject's iris.

Abstract: A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of ?k<168 m?1 and the adjustment of the light source is carried out in ?<44 s/(D*k0).

Abstract: The present patent application discloses a digital slit-lamp microscope system and the methods of the electronic recording and remote diagnosis. The present patent application relates to the field of optical instrument and remote communication control. The purpose is to solve the problems of the electronic recording, reappearing and remote diagnosis of the slit-lamp image. The digital slit-lamp microscope system comprises digital slit-lamp microscope side, communication unit and client side. The digital slit-lamp microscope side includes a build-in slit-lamp microscope and is connected to the communication unit and the client side in sequence. The digital slit-lamp microscope side irradiates the eyes of the patient, and then transmits the pathology information of the eyes of the patient to the communication unit and the client side in sequence.

Abstract: There is provided a method of monitoring retinopathy in a subject. The method involves measuring autofluorescence of a retina of the subject in response to high intensity blue light over a total time period to obtain an autofluorescence intensity profile. The autofluorescence intensity profile is processed to assess the retinopathy status of the retina.

Abstract: An ophthalmic photographing apparatus or method receives light returned from an eye to be examined, calculates a plurality of temporally continuous photometric values based on a light receiving result in the receiving, and determines whether or not the eye is to be photographed, based on the plurality of calculated photometric values.

Abstract: An ophthalmological analysis instrument for measuring a topography of a surface of an eye includes a projection apparatus and a monitoring apparatus. The projection apparatus has at least one illumination device and an aperture device. The illumination device has a first light source, which can emit light in a predominantly monochromatic spectrum, it being possible to image an image pattern on a surface of an eye by the aperture device. Images of the imaged image pattern being recordable by the monitoring apparatus, and a topography of the surface of the being derivable from the images, wherein the illumination device has at least one further light source, which can emit polychromatic light in a predominantly visible spectrum.

Abstract: A binocular adaptive optics visual simulator and a method for binocular adaptive optics visual simulation are provided. An example method may comprise: directing beacon light to a left eye and a right eye of a subject, respectively; sensing aberrations of the left and right eyes of the subject, and sensing a deflection angle of a pupil of each of the left and right eyes; correcting the aberrations based on the sensed aberrations to achieve a desired aberration configuration between the left and right eyes; and changing a direction in which the beacon light is directed based on the sensed deflection angle in such a manner that in a case where the pupil is subjected to deflection, the beacon light is incident onto the pupil of each of the left and right eyes of the subject at a substantially identical angle before and after the deflection of the pupil.

Abstract: System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures.

Abstract: There is provided a system, apparatus and methods for enhancing the illumination of structures of the eye using predetermined scan patterns of an illuminating light beam. The systems, apparatus and methods further provide for obtaining enhanced single images of multiple structures of the eye.

Abstract: An ophthalmic apparatus for guiding positioning an intraocular lens for astigmatism correction, includes: an obtaining unit for obtaining an anterior segment image of a patient's eye and an astigmatic axis of a patient's cornea; a feature point designating unit for defining a feature point of an iris or a sclera on the anterior segment image; and a display control unit for superimposing and displaying a gauge image that models a cornea gauge and an axis that represents the astigmatic axis of the cornea on the anterior segment image.

Abstract: The field of the invention relates to systems and methods for ophthalmic laser procedure and, more particularly, to systems and methods for dynamic fixation used in the fixation of the eye(s) of a patient during laser-assisted ophthalmic surgery and/or ophthalmic diagnostic and measurement systems where visualization and concentration on a target are desired. The invention generally enhances the alignment between the eye and a laser beam of a laser eye surgery system using visual fixation system and laser delivery optics. The visual fixation system allows a patient's eye(s) to be accurately focused at one or more fixation targets.

Abstract: An eye refractive power measuring apparatus includes: a measuring part configured to project measurement light onto a fundus of an examinee's eye and measure refractive power of the eye based on reflection light of the measurement light from the fundus; a fixation target presenting part configured to present a fixation target to the eye; a drive part configured to move a presenting position of the fixation target; and a control part configured to control the drive part to move the presenting position from far distance to near distance, the apparatus being configured to measure the eye refractive power in at least a far position and a near position, wherein the control part controls the drive part to change a control amount thereof based on a change in measurement results of the eye refractive power while the fixation target is moved from the far distance to the near distance.

Abstract: An optical unit concentrates light beams from measurement-light paths at first and second irradiation positions on an eyeground. Next, a control unit controls a scanning unit so that the light beams concentrated at the first and second irradiation positions are scanned in first and second scanning areas of the eyeground and so that the first and second scanning areas overlap to form an overlap area. A tomographic-information acquisition unit acquires first tomographic information and second tomographic information in the first and second scanning areas from interference light. Third tomographic information is acquired from the first tomographic information and the second tomographic information in the first and second scanning areas on the basis of the first tomographic information and the second tomographic information in the overlap area.

Abstract: An optometric apparatus includes an optotype presenting optical system for presenting part of a plurality of optotypes corresponding to visual acuity to be measured to an examinee's eye and a visible light source for irradiating illumination light to the optotypes presented to the eye through the optotype presenting optical system. A controller is configured to execute processing of changing a light amount of the illumination light to be irradiated to the optotypes from the visible light source between a predetermined first light amount and a second light amount lower than the first light amount and processing of switching the optotypes to be presented to the eye at the time of changing the light amount of the illumination light from the first light amount to the second light amount.

Abstract: A line-scanning ophthalmoscope includes a light source to provide a light beam to an object of interest, a beam separating device to receive the light beam, provide the light beam to a scanning device and substantially separate the light beam and the returning light beam from the object of interest, a scanning device to direct the light beam to the object of interest for scanning the object of interest; to receive the light beam returning from the object of interest; and to direct at least part of the reflected light beam towards a detector; and a further scanning device to convert the light beam to a line-shaped light beam.

Abstract: An adapter (60) for an apparatus (50) for measuring a first property of an eye is attachable to the apparatus (50), wherein, when the adapter (60) is attached to the apparatus (50), a second additional property of the eye is measurable,

Abstract: Various embodiments of a device for performing a gaze field sobriety test are disclosed. The device includes a housing. A light source is affixed in or on the housing. The light source generates light during at least a portion of the gaze field sobriety test. A speaker positioned in or on the housing generates sounds during at least a portion of the gaze field sobriety test. A power source is coupled to the speaker and the light source. An input is positioned on the housing. The input is selectable by a test administrator to initiate an audible sound through the speaker at a predetermined time interval during at least a portion of the gaze field sobriety test. The audible sound provides an indication to the test administrator during the gaze field sobriety test to assist in proper performance of the gaze field sobriety test.

Abstract: Various embodiments of a device for performing a gaze field sobriety test are disclosed. The device includes a housing. A light source is affixed in or on the housing. The light source generates light during at least a portion of the gaze field sobriety test. A speaker positioned in or on the housing generates sounds during at least a portion of the gaze field sobriety test. A power source is coupled to the speaker and the light source. An input is positioned on the housing. The input is selectable by a test administrator to initiate an audible sound through the speaker at a predetermined time interval during at least a portion of the gaze field sobriety test. The audible sound provides an indication to the test administrator during the gaze field sobriety test to assist in proper performance of the gaze field sobriety test.

Abstract: It has been very cumbersome to determine whether or not alignment is required before the fundus image is acquired after the tomographic image is acquired, causing the reduction in diagnostic efficiency. An ophthalmic apparatus is provided to solve this problem, which comprises an irradiation unit that irradiates an eye to be inspected with a first beam for acquiring a tomographic image of the eye and a second beam for acquiring a fundus image of the eye, the second beam having a beam diameter larger than the beam diameter of the first beam; and a determination unit that, based on information indicating a shift amount between an irradiation position of the first beam in the eye and an ocular axis of the eye, determines whether or not the irradiation position of the second beam falls within a range in which the fundus image can be acquired.

Abstract: OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject.

Abstract: A lens module comprises a first lens group, a second lens group and a third lens group, which are arranged from an eye fundus side to an image side in sequence. The first lens group has a positive effective focal length (EFL) and includes a first lens having two convex surfaces respectively facing the eye fundus side and the image side. The second lens group has a positive or negative EFL and includes a plurality of second lenses, wherein the second lens closest to the eye fundus side has a concave surface facing the eye fundus side. The third lens group has a positive EFL and includes a plurality of third lenses, wherein at least one third lens is a cemented lens. The abovementioned lens module decreases the volume of a lens module and reduces the ghosting effect. An eye fundus camera using the abovementioned lens module is also disclosed.

Abstract: One embodiment of the present invention is an ophthalmic wavefront sensor for use with an ophthalmic microscope to provide continuous measurements of the refractive state of an eye. The wavefront sensor operates in both parallel sampling and lock-in detection mode by synchronizing the pulsing of the light source with a multiple number of position sensing devices/detectors used for detecting the centroid position of the sampled sub-wavefronts. Other embodiments include a beam scanner to sample selected portions of the wavefront and a live image sensor and a tracking deflector.

Abstract: Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam.

Abstract: A method and apparatus for measuring the retinal auto-fluorescence of a subject retina includes an excitation light source for providing an excitation light at a wavelength of at least 450 nm and an image capture device for recording an ocular auto-fluorescence signal generated in response to the excitation light. The image capture device includes a filter for reducing background non-signal wavelengths from the ocular auto-fluorescence signal and an image intensifier for increasing the ocular auto-fluorescence signal strength. The method and apparatus may further include a processor that analyzes the ocular auto-fluorescence signal to determine a contrast change or pattern to thereby detect retinal disease or damage. The processor may compare the images with control images, past images of the same eye or other diagnostic modalities such as fundus photography, angiography, or visual field testing to detect the retinal disease or damage.

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: An ophthalmic apparatus includes an irradiation unit configured to irradiate a subject's eye with a measurement beam scanned by a scanning unit, an acquisition unit configured to acquire an image of the subject's eye based on a return beam returned from the subject's eye, of the measurement beam irradiated by the irradiation unit, and a calculation unit configured to calculate a blood flow velocity of the subject's eye based on a displacement between a position of a blood cell in a first image obtained by the acquisition unit and a position of the blood cell in a second image obtained by the acquisition unit at a different time from the first image and on a difference between time when an image of the blood cell in the first image is obtained and time when an image of the blood cell in the second image is obtained.

Abstract: A method of determining a correction for distortion in eye representations of an ophthalmoscope comprising (i) constructing an optical description of a system comprising the ophthalmoscope and a model eye, (ii) passing a ray through the system onto a surface of the model eye, (iii) calculating an actual measurement of the ray at the surface, (iv) determining a horizontal scanning angle and a vertical scanning angle of the system for the ray, (v) calculating an expected measurement of the ray at the surface using the horizontal scanning angle and vertical scanning angle of the system, (vi) repeating steps (ii) to (v) for a plurality of further rays, and (vii) comparing the actual measurements of the rays at the surface with corresponding expected measurements of the rays at the surface to determine the correction for distortion in eye representations of the ophthalmoscope.

Abstract: Various embodiments of a device for performing a gaze field sobriety test are disclosed. The device includes a housing. A light source is affixed in or on the housing. The light source generates light during at least a portion of the gaze field sobriety test. A speaker positioned in or on the housing generates sounds during at least a portion of the gaze field sobriety test. A power source is coupled to the speaker and the light source. An input is positioned on the housing. The input is selectable by a test administrator to initiate an audible sound through the speaker at a predetermined time interval during at least a portion of the gaze field sobriety test. The audible sound provides an indication to the test administrator during the gaze field sobriety test to assist in proper performance of the gaze field sobriety test.

Abstract: Provided is a light intensity control apparatus including: a photometry value calculation portion for measuring reflected light from a fundus under illumination of an observation light source; an observation light source control portion for controlling a light intensity of the observation light source based on photometry information obtained by the photometry value calculation portion, the light intensity of the observation light source obtained in the measurement, and a correction value of the light intensity of the observation light source; and a photographing light source control portion for controlling a light intensity of a light source of a photographing light source based on the photometry information obtained by the photometry value calculation portion, the light intensity of the observation light source obtained in the measurement, and a correction value of the light intensity of the photographing light source.

Abstract: The invention relates generally to optical tomographic imaging and in particular to systems and methods for adapting the resolution of imaging. One embodiment of the present invention is an apparatus for optical coherence tomography imaging, characterized by its ability to vary the axial resolution and scanning speed during imaging.

Abstract: Example embodiments of a large dynamic range sequential wavefront sensor for vision correction or assessment procedures are disclosed. An example embodiment optically relays a wavefront from an eye pupil or corneal plane to a wavefront sampling plane in such a manner that somewhere in the relaying process, the wavefront beam from the eye within a large eye diopter range is made to reside within a desired physical dimension over a certain axial distance range in a wavefront image space and/or a Fourier transform space. As a result, a wavefront beam shifting device can be disposed there to fully intercept and hence shift the whole beam to transversely shift the relayed wavefront.

Abstract: When the fundus camera is positioned on the same side as the subject's eye relative to an appropriate position (front-focus state), the positioning index light source turned on in blue produces most-focused positioning index images. The positioning index light sources become more blurred in order of green and red. When the camera is positioned on the opposite side of the subject's eye relative to the appropriate position (rear-focus state), the positioning index light source turned on in red produces most-focused images. The positioning index light sources become more blurred in order of green and blue. Based on a degree of the blur of the individual positioning index images in red, green, and blue reflected by the cornea of the subject's eye, the calculation unit calculates whether to move the camera body closer to or farther away from the subject's eye and allows the display unit to display the information.

Abstract: Methods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The system includes a gaze attractor for attracting the gaze of the subject to cause an eye of the subject to move into alignment with regard to an interrogation signal source and/or response signal sensor to facilitate detection of a signal from the eye of the subject.

Abstract: An adaptive optical apparatus comprising: a shielding unit configured to shield diffracted light that is generated at an aberration correction unit that is irradiated with returning light, wherein the returning light returns from an object to be examined that is irradiated with light; a detection unit configured to detect an aberration of the returning light through an aperture of the shielding unit; and a control unit configured to control the aberration correction unit based on a detection result of the detection unit.

Abstract: A system, method and program product for providing a reflexive data collection system and a reflexive data verification system. A system is provided that includes: a system for defining a set of environmental conditions; a device for automatically implementing the set of environmental conditions; a system for collecting biometric data under the set of environmental conditions; and a system for encoding the biometric data and the set of environmental conditions into a reflexive template.

Abstract: Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image.

Abstract: The present invention relates to an illumination device for a surgical microscope, comprising at least one light source (10, 20) for generating a first illumination beam path (80) that makes available a first illumination region in an object plane (70), and a second illumination beam path (90) that makes available a second illumination region in the object plane (70), such that the first illumination region and second illumination region at least partly overlap, and comprising a switching device (50) with which illumination of the object plane with the first and/or with the second illumination beam path (80, 90) can selectably be made available, and an eclipse filter (40), introducible into the first illumination beam path (80), by means of which the first illumination beam part (80) is partly darkenable.

Abstract: A system and method for automated determination of position and movement of a contact lens with respect to a subject wearer's eye based upon a complimentary pair of images, acquired in rapid succession, in which one image of the pair is acquired using light that allows viewing of the pupil and/or limbus through the lens and the other image is acquired using light that is absorbed by the lens to generate an opaque image with a defined edge relative to the surrounding sclera. The images of the pair are acquired in close enough temporal proximity to ensure that eye movement in the interval therebetween is insignificant and both images are in the same approximate reference frame. Thus, the location of the pupil and limbus in one image can be accurately compared with the location of the contact lens edge in the other image.

Abstract: A method and apparatus for measuring a molecular composition of protein molecules. A fluid containing at least two varieties of protein molecules is irradiated with first and second laser light beams having different wavelengths. The molecular composition of the at least two varieties of protein molecules contained in the fluid is measured on the basis of an autocorrelation function of a scattered light signal from the at least two varieties of protein molecules irradiated with the first and second laser light beams having different wavelengths.