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7618144 |
System and method for tracking eye movement
A system for tracking eye movement is disclosed. A first light source, emitting light including a first wavelength, is adapted to illuminate corneal tissue of an eye. The first wavelength is...
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7600873 |
Method of determining the spatial relationship of an eye of a person with respect to a camera device
A method of determining the spatial relationship of an eye ( 10 ) of a person with respect to a camera device ( 20 ) which provides images of the eye ( 10 ) comprises:
a model acquisition...
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7597444 |
Ophthalmological device
An ophthalmological device ( 1 ) comprises a controllable optical correction element ( 14 ) for the variable modulation of the wavefront of deflected femtosecond laser pulses. A control module ( 13...
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7597443 |
Wide viewing angle ocular fundus blood flow imaging device
Provided is a wide viewing angle ocular fundus blood flow imaging device in which the measurement field of view is enlarged and which includes a projection system that turns a laser beam into a...
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7594728 |
Adjustable device for vision testing and therapy
An adjustable and foldable device for visual field testing or treatment includes a computer display mounted on a base and presents visual stimuli to the patient. An associated head support assembly...
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7568800 |
Apparatus and method for spectrally measuring fundus
To provide a spectroscopic fundus measuring apparatus capable of identifying each part in spectral fundus images easily and accurately based on its spectral characteristic and a measuring method...
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7556377 |
System and method of detecting eye fixations using adaptive thresholds
A system and method of adaptively establishing fixation thresholds for eye-gaze tracking data and identifying fixations within the eye-gaze tracking data are disclosed. Eye-gaze tracking data is...
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7553282 |
Non-contact tonometer
A non-contact tonometer changes a reference signal used for determining reliability of a signal indicating deformation of a cornea based on the reflectance of the cornea of an eye to be examined....
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7553021 |
Optical system for monitoring eye movement
In one embodiment, a system for monitoring eye movement through optical observation of the eye includes an optical device configured for mounting on a frame for positioning the optical device on a...
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7549746 |
Fundus observation device
A fundus observation device is provided capable of capturing both images of the surface of the fundus oculi and tomographic images of the fundus oculi, and capable of preventing alignment...
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7537341 |
Wavefront aberration compensating apparatus and ophthalmologic unit having the same
A wavefront aberration compensating apparatus, which includes: a deformable mirror having electrodes and a thin-film mirror; an optical system provided with the deformable mirror and including an...
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7522745 |
Sensor and imaging system
A system is disclosed having a camera, a processor, and a user interface. The camera transmits image data responsive to a scene within a field of view. In response to the image data, the processor...
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7515054 |
Biosensors, communicators, and controllers monitoring eye movement and methods for using them
Biosensor, communicator, and/or controller apparatus, systems, and methods are provided for monitoring movement of a person's eye. The apparatus includes a device configured to be worn on a user's...
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7506982 |
Ophthalmologic photographing apparatus
An opthalmologic photographing apparatus which is used to observe and photograph a fundus oculi of an eye to be examined, includes an observation light source illuminating the eye to observe the...
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7500752 |
Diagnosing and training the gaze stabilization system
A method for diagnosing impairments of a subject's gaze stabilization system is provided. The method includes measuring the subject's static visual acuity to obtain an assessment, setting at least...
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7480059 |
Optical coherence tomography for eye-length measurement
An accurate measure of eye length can be obtained using concurrent OCT measurements. A position OCT device can be used to continually monitor the position of the front surface of the cornea, while...
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7475989 |
Shack-Hartmann based integrated autorefraction and wavefront measurements of the eye
Devices, systems, and methods often by measuring characterize optical structures and systems, the standard refractive error and irregular aberrations. A retinal spot can propagate through optical...
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7461938 |
Apparatus and method for determining sphere and cylinder components of subjective refraction using objective wavefront measurement
An apparatus for determining spherical and cylinder components of subjective refraction of a patient's vision includes a wavefront measurement device that can produce a measure of quality of vision...
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7452077 |
Image adjustment derived from optical imaging measurement data
A method and apparatus for imaging within the eye is provided whereby a component of eye position is detected using optical imaging data. Tracking eye position over time and correctly registering...
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7438418 |
Mental alertness and mental proficiency level determination
A method for determining mental proficiency level by monitoring point of gaze, pupillary movement, pupillary response, and other parameters in a subject performing a task, collecting the data in a...
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7438414 |
Gaze discriminating electronic control apparatus, system, method and computer program product
An electronic control apparatus, system, method and computer program product for selecting and controlling an electronic device from among a plurality of available electronic devices based upon the...
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7430365 |
Safe eye detection
An eye detection system for safe detection of the eye positions of a subject estimates the distance from the eye detection system to the subject and reduces the power level of at least one primary...
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7428001 |
Materials and methods for simulating focal shifts in viewers using large depth of focus displays
A large depth of focus (DOF) display provides an image in which the apparent focus plane is adjusted to track an accommodation (focus) of a viewer's eye(s) to more effectively convey depth in the...
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7425067 |
Ophthalmic diagnostic instrument
Diagnostic instruments, systems and methods for performing measurements on eyes are disclosed. In one embodiment of the instrument, a left ocular is disposed in a portion of a left visual path for...
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7419264 |
Ophthalmic aberrometer for measuring aberrations in the eye
A ophthalmic aberrometer uses a wavefront sensor aligned with an eye under examination through an optical path and a light source for introducing a light beam into the eye via the optical path,...
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7416303 |
Ophthalmic observation apparatus
An ophthalmic observation apparatus for observing an object region to be observed of an examinee's eye, comprises: an illumination optical system which has a laser source, a polygon mirror, and a...
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7401920 |
Head mounted eye tracking and display system
A system for eye tracking that determines the line of sight of a user according to the relative position between the center of the pupil and a reference point, the system including an image...
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7401919 |
Method, device and arrangement for measuring the dynamic behavior of an optical system
A method for measuring the dynamic behavior of an optical system is aimed at rendering the dynamic behavior of the optical system objectively detectable. To this end, the optical system to be...
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7400410 |
Optical coherence tomography for eye-length measurement
An accurate measure of eye length can be obtained using concurrent OCT measurements. A position OCT device can be used to continually monitor the position of the front surface of the cornea, while...
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7387386 |
Ophthalmologic image processing apparatus
To synthesize an aperture mask having unnoticeable steps with a taken fundus image. In an image processing apparatus, taken fundus image data is inputted and then analyzed. After that, an aperture...
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7380938 |
Apparatus to detect and measure saccade and pupilary changes
An eye tracking system employs a first line camera that is configured to track horizontal eye motion and a second line camera that is configured to track vertical eye motion. Output signals from...
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7367673 |
Method and apparatus for the diagnosis of glaucoma and other visual disorders
A subject ( 12 ) observes an image on a display ( 10 ). A control ( 18 ) produces a fixation image at a selected position in the display, followed by a stimulus spaced from the fixation image. An...
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7357507 |
Image-based system to observe and document eye responses
The image-based system is used to observe and document eye responses which can be used to implement the procedures defined in the Standardized Field Sobriety Test as well as the Drug Recognition...
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7344251 |
Mental alertness level determination
A method for determining mental alertness level by monitoring point of gaze, pupillary movement, pupillary response, and other parameters in a subject performing a task, collecting the data in a...
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7341347 |
Fundus image display system
In a fundus image display system, a fundus image, time information and a tool bar are displayed on a monitor screen. In case where the tool bar overlaps with the fundus image or the time...
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7331671 |
Eye tracking method based on correlation and detected eye movement
An eye tracking method tracks a subject's eye template by correlation between successive video frames, and periodically updates the eye template based on detected characteristic eye or eyelid...
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7325926 |
Ophthalmologic photographic device
An ophthalmologic photographic device has control means for setting a fixed gain at the time of alignment and at the time of still image taking and switching to AGC when switching to moving image...
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7296894 |
Fundus camera having scanned illumination and pupil tracking
An apparatus ( 100 ) for obtaining an image of the eye, has an alignment section ( 160 ) for aligning the pupil of the eye along an optical axis and a pupil sensor ( 170 ) for identifying pupil...
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7246905 |
Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye
An apparatus ( 10, 10 ′) for detecting the surface topography of a cornea ( 24 ) of an eye ( 22 ) by dynamic or static projection of a pattern onto the surface of the cornea and detection of the...
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7241011 |
Fundus imaging system
An apparatus ( 220 ) for obtaining a scanned image of an eye has a reference locator for pupil alignment apparatus along an optical axis. A pupil profiling apparatus for obtaining an outline of the...
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7234812 |
Method and apparatus for manufacturing a custom fit optical display helmet
A helmet with an optical display system is provided with a custom fit protective liner which precisely aligns the wearer's eyes with the optics on the helmet. The helmet is manufactured by...
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7198367 |
Fundus imaging apparatus and fundus imaging method
A fundus imaging apparatus comprises: a beam emitter which simultaneously emits a first laser beam and a second laser beam having a different wavelength from the first beam; an irradiation optical...
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6854847 |
Optical tracking device employing scanning beams on symmetric reference
The optical tracking device of the present invention is contemplated to obtain a large tracking range in an open loop configuration. The tracking device projects and scans two probe beams across a...
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6834202 |
Blood flow measuring apparatus
A blood flow measuring apparatus includes a system control unit that sends outputs for controlling the start and end of the measurement to optimum gain calculation units, which calculate the...
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6802837 |
Device used for the photorefractive keratectomy of the eye using a centering method
The invention relates to a device used for the photorefractive keratectomy of the eye, especially LASIK, uses an UV laser beam for ablating parts of the cornea. A centering light beam is arranged...
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6755817 |
Device for medical treatment of the eye using laser illumination
A device for the medical treatment of the eye with laser radiation uses auxiliary radiation for determining the eye position. With the aid of the auxiliary radiation, pictures are taken by means of...
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6749302 |
Afocal position detection system and ophthalmic instrument employing said system
A fast position detection system and related method for an ophthalmic instrument utilize stored geometrical relationships determined by multiple regression during instrument calibration to compute...
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6702809 |
System for detecting, measuring and compensating for lateral movements of a target
A method, apparatus and system for a transverse tracker is described that can greatly improve the accuracy, speed, range, reliability, versatility, safety, and efficacy of interventions such as...
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6674964 |
Visual axis detecting apparatus
Disclosed is a visual axis detecting apparatus having: a visual axis detection circuit for detecting a visual axis of an observer; an arithmetic circuit for performing an arithmetic operation of...
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6659611 |
System and method for eye gaze tracking using corneal image mapping
A system and method for eye gaze tracking without calibrated cameras, direct measurements of specific users' eye geometries, or requiring the user to visually track a cursor traversing a known...
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