Patent classifications
A61B3/158
System and Methods for Customizing an Intraocular Lens Using a Wavefront Aberrometer
A method and system for correcting vision in an eye that uses a wavefront-customized phakic or pseudophakic Intraocular Lens (IOL), the method comprising: (1) measuring wavefront aberrations of the eye; (2) designing a wavefront-customized correction profile for an IOL; (3) creating a customized IOL with the customized correction profile; and (4) implanting the customized IOL in the eye, without having to remove the natural lens. Alternatively, an uncorrected IOL is implanted first, followed by scanning a femtosecond laser spot across the implanted IOL to locally change the Index of Refraction of the IOL material and create an in-situ customized IOL.
METHODS AND APPARATUS FOR MAKING A DETERMINATION ABOUT AN EYE USING COLOR TEMPERATURE ADJUSTED AMBIENT LIGHTING
Disclosed herein are methods and apparatus for making a determination about an eye in ambient lighting conditions comprising detecting ambient light reflected out of an eye of a subject from a retina of the eye of the subject and making a determination about the eye of the subject based upon the reflected ambient light, wherein the ambient light is adjusted for color temperature when making the determination about the eye.
Photorefraction Ocular Screening Device and Methods
A photorefraction ocular screening device for assessing vision and corresponding disorders associated with the human ocular system is provided. More specifically, the present invention provides for a photorefraction ocular screening device employing advanced methods of pupil detection and refractive error analysis. The photorefraction ocular screening device is comprised of an LED arrangement configured with a plurality of irradiation sources serving as visual stimuli, wherein the visual stimuli may be presented in varying illumination patterns to the pupils of an examinee for expanding the range of ocular responses that can be used to determine refractive error.
OPHTHALMIC APPARATUS, METHOD OF CONTROLLING THE SAME, METHOD OF OPHTHALMIC OPTICAL COHERENCE TOMOGRAPHY, AND RECORDING MEDIUM
An ophthalmic apparatus of an embodiment example applies an OCT scan to an anterior segment and constructs an image from acquired data. Further, the ophthalmic apparatus analyzes the image to detect an artifact along an A-scan direction and moves an OCT optical system based on the artifact. Also, the ophthalmic apparatus analyzes the image to detect a corneal image and judges whether an intersection between the artifact and the corneal image is located within a predetermined area. In addition, the ophthalmic apparatus calculates an image quality evaluation value of the image, and controls the OCT optical system to perform an OCT scan of a predetermined pattern if the intersection is located within the area and the image quality evaluation value is equal to or greater than a predetermined threshold.
Methods and apparatus for making a determination about an eye in ambient lighting conditions
Disclosed herein are methods and apparatus for making a determination about an eye in ambient lighting conditions comprising detecting ambient light reflected out of an eye of a subject from a retina of the eye of the subject and making a determination about the eye of the subject based upon the reflected ambient light.
Multiple off-axis channel optical imaging device with overlap to remove an artifact from a primary fixation target
An optical imaging device includes a support structure and imaging channels, where each imaging channel includes a discrete optical imaging pathway. The imaging channels may be disposed within the support structure, and the imaging channels may be aimed at different angles relative to each other such that each optical imaging pathway is directed towards a pupil of the eye. Additionally, the optical imaging device may include a primary fixation target configured to emit optical signals along a primary fixation target projection path towards the pupil of the eye. Further, an artifact of the primary fixation target may be generated onto a portion of the eye to be imaged.
MULTI-SPECTRAL LIGHT GENERATING UNIT, FUNDUS IMAGING SYSTEM AND METHOD
A multi-spectral light generating unit, a fundus imaging system, and a fundus imaging method. The multi-spectral light generating unit includes one or more illumination units and a control unit; each illumination unit includes a light-emitting diode matrix, each light-emitting diode matrix emits light of multiple wavelengths; converting, by the control unit, the control instruction sent by the central controller into a control signal; triggering, by the control unit, the specified light-emitting diode matrix of the specified illumination unit to emit light of a preset wavelength and preset energy to output the multi-spectral light.
Wide field fundus camera with auto-montage at a single alignment
A wide field fundus camera is disclosed to implement multiple illumination beam projectors and to capture multiple retinal images at various viewing angles to facilitate wide field retinal examination. The wide field fundus camera contemplates an ultra-wide field lens that can provide edge to edge imaging of the entire retina at a single alignment. It also contemplates configuration of said multiple illumination beam projectors to provide visualization of retina and Purkinje reflections simultaneously to facilitate determination of proper camera alignment with the eye. It further contemplates control of multiple illumination beam projectors in a programmable manner to capture said multiple retinal images. It further contemplates a real-time algorithm to reduce said reflected and scattered light haze in said retinal images. It further contemplates automated montage of said multiple retinal images into a single wide field FOV retinal montage and automated removal reflected and scattered light haze from said retinal montage.
Wide-field retinal imaging system
A retinal imager for imaging a retina of an eye includes an illumination source operable to generate illumination light and a beam splitter operable to receive the illumination light and direct the illumination light along an optical axis. The retinal imager also includes a field lens disposed along the optical axis and an objective lens disposed along the optical axis and operable to contact a cornea of the eye. An aerial image is formed adjacent to the field lens. The retinal imager further includes an image sensor and one or more lenses disposed along the optical axis between the beam splitter and the image sensor. The one or more lenses are operable to form a sensor image at the image sensor.
OPHTHALMIC IMAGING DEVICE FOR IMAGING POSTERIOR AND ANTERIOR EYE REGIONS
An ophthalmic imaging device (300) includes a fundus module (210) and a slit lamp 5 module (220) movably coupled to each other. The fundus module (210) includes an illumination module (230) and an imaging module (240). The illumination module (230) is adapted to yield a first partially blocked beam. The imaging module (240) includes a mirror (324) with a hole and an objective lens (326) to produce a reflected first partially blocked beam and a second partially blocked beam, to form a cornea 10 illuminating doughnut (502) and pupil illuminating doughnut (504), respectively, on an anterior region of the eye and form an image of the posterior\\region of the eye on an image plane (346). The slit lamp module (220) is adapted to view and capture the image of anterior and posterior regions of the eye.