40 results about "Ophthalmological device" patented technology

An ophthalmic device and an ophthalmic device control program are provided that are capable of appropriately acquiring three-dimensional information about the anterior segment of the eye while stabilizing the fixation of the subject's eye. [Solution] The fixation target presenting optical system presents a fixation target to the subject's eye. The cross-sectional imaging optical system captures cross-sectional images of the anterior segment by receiving return light from the anterior segment that has been optically sectioned by the imaging light. The moving unit moves an optical unit including the fixation target presenting optical system and the cross-sectional imaging optical system relative to the subject's eye. The control unit can perform a three-dimensional information acquisition process to acquire three-dimensional information about the anterior segment by capturing cross-sectional images of multiple locations on the anterior segment while moving the optical unit and scanning the imaging light. When performing the three-dimensional information acquisition process, the control unit positions the fixation target within a limited area centered on the focal position of the entire lens system of the fixation target presenting optical system, regardless of the refractive power of the subject's eye.

To provide an ophthalmologic apparatus and a focusing determination method capable of executing observation and focusing evaluation of an eye to be examined with a simple configuration.SOLUTION: An ophthalmologic apparatus includes: a spectral member for splitting light emitted from a light source into a first spectrum and a second spectrum; an optical scanner for guiding the first spectrum and the second spectrum to an observed region of an eye to be examined including a plurality of imaged lines split in a scanning direction; a line exposure type image pick-up device including a plurality of exposure lines, in a light reception region, in which the imaged lines are caused to correspond to imaging positions respectively, which can detect return light from the observed region; and a control part for radiating the first spectrum and the second spectrum to the region of the plurality of imaged lines corresponding to the plurality of exposure lines of an exposure line group while sequentially moving exposure operations of the plurality of exposure lines contained in a predetermined exposure line group, and executing focusing determination from a result of the detection of the exposure lines in the exposure line group.SELECTED DRAWING: Figure 11

An ophthalmologic system includes an ophthalmologic apparatus including a measurement unit, a measurement information processor that converts measurement information measured by the measurement unit into image information and non-image information excluding the image information, an ophthalmologic apparatus display of the ophthalmologic apparatus that displays the image information, a terminal device that is disposed remotely from the ophthalmologic apparatus and includes a terminal display, a display imaging device that is attached to the ophthalmologic apparatus and captures an image of an entire screen shown on the ophthalmologic apparatus display, an image transmitter that transmits the image captured by the display imaging device to the terminal device, a measurement information transmitter of the ophthalmologic apparatus that transmits the measurement information to the terminal device, and an information integrator that integrates the image information transmitted from the image transmitter with the measurement information.

To provide ophthalmic devices and methods for treating glaucoma, ocular hypertension (OHT), and other diseases. [Solution] The system (20) comprises a radiation source (48) and a controller (44), the controller being configured to: display a live sequence of images of the patient's (22) eye (25); while displaying the sequence of images of the eye, to direct the radiation source to irradiate the eye with one or more targeting beams (84) visible in the images; after directing the targeting beams to the eye with the radiation source, to receive confirmation input from the user; and in response to receiving confirmation input, to treat the eye by directing the radiation source to irradiate each target area of ​​the eye with multiple treatment beams. Other embodiments are also described.

Provided is an ophthalmological device capable of obtaining a brighter and clearer inspection image.　A slit lamp microscope (100) comprises: a background illumination system (60); an imaging unit (50); and a control unit (20). The control unit (20) comprises an inspection image generation unit (21) that generates an inspection image of an inspected eye, on the basis of images captured by the imaging unit (50). The inspection image generation unit (21) has: an image acquisition unit (24) that acquires, from the imaging unit (50), a plurality of images captured through imaging an inspected eye while changing the illumination direction of illumination light with respect to the inspected eye; an image extraction unit (25) that extracts, as a partial image, a portion at which focus is achieved from the plurality of images acquired by the image acquisition unit (24); and an image combination unit (26) that combines a plurality of the partial images extracted by the image extraction unit (25) together to generate an inspection image.

The present invention provides an eye device case that reduces the risk of damage to eye devices such as contact lenses held in the holder and also improves the ease of inserting eye devices into the holder. The ophthalmic device case 10 comprises a case body 12 including a housing recess 24, a lid 14 that seals the opening 32 of the housing recess 24, and holder portions 20a and 20b that are rotatably provided on the protruding end side of a support column 16 that is held by the lid 14 and protrudes downward, and hold an ophthalmic device 26. The lid 14 can be attached to the opening 32 of the housing recess 24 with the device insertion openings 68 of the holder portions 20a and 20b held by the lid 14 oriented so as to open toward the lid 14.

The invention relates to a corneo-capsular protection system (CCPS), which is an ophthalmological device designed to simultaneously protect the corneal endothelium and the posterior capsule during intraocular surgery (phacoemulsification), the system comprising a corneal protection dome (CPD) and a capsular protection floor (CPF). The dome is a foldable, transparent lens that protects the endothelium against mechanical and thermal damage while optionally providing a magnifying effect to improve surgical visibility. The floor is a foldable lens designed to protect the posterior capsule from perforations and trauma. It has a central condensation facilitating its safe removal, and can also provide protection to the macula against prolonged exposure to light. The two components are designed for easy insertion and removal through micro-incisions, thereby reducing the risk of postoperative complications, and have a complete, potentiated protective effect if used in combination.

Providing a technology that makes it easier to estimate the time-dependent changes in a subject's measurement values ​​from the measurement values ​​of a comparison subject. [Solution] The measurement result display system comprises: a measurement information acquisition unit that acquires measurement information showing the time change of measured values ​​of the eyes of a first subject and a second subject measured by an ophthalmic device; a measurement information adjustment unit that shifts the measurement information of the second subject on the time axis in a direction that eliminates the age difference by a shift amount corresponding to the age difference between the second subject and the first subject; and a display control unit that displays the shifted measurement information of the second subject and the measurement information of the first subject on a display unit in a comparable manner.

The invention provides a dynamic calibration method and system for ophthalmologic equipment, and the method comprises the steps: setting a collection sequence which comprises n different axial working distance points; determining n position points according to the n different axial working distance points; obtaining an absolute actual working distance corresponding to the position point; under the absolute actual working distance, obtaining two-dimensional image coordinates of m light reflecting points corresponding to all position points, and taking the two-dimensional image coordinates as measured values; taking the measured values, the absolute actual working distances corresponding to all the position points and the preset curvature radius of the standard ball as a correction data set; adjusting system error correction parameters according to the correction data set through a global optimization algorithm, so as to obtain the system error correction parameters when the loss values between the predicted values and the measured values of the system error physical transmission correction model on the absolute actual working distances corresponding to all the position points are minimum; decoupling can be carried out physically, and systematic errors introduced by installation and adjustment tolerance can be compensated quantitatively.

An image processing device may include a first image input unit to which a first photographed image obtained by photographing a specific part of the subject eye is inputted, a second image input unit to which a second photographed image obtained by photographing the specific part is inputted, and display unit configured to display a synthesized image obtained by synthesizing the first and second photographed image. The synthesized image may be partitioned into at least a first region and a second region by a first boundary line. The display unit may be configured to display, in the first region, at least a portion which is a part of the first photographed image and corresponds to the first region. The display unit may be configured to display, in the second region, at least a portion, which is a part of the second photographed image and corresponds to the second region.

An ophthalmological device comprises a laser source, an application head having focusing optics and a patient interface, a scanner system and circuit. The circuit is configured to control the scanner system to incise an incision surface, which is symmetrical with respect to the central axis of the patient interface, in the eye tissue, a pulsed laser beam being steered onto treatment points on the incision surface on a first treatment path, and the treatment path being curved while extending around the projection axis of the focusing optics. In the event of a tilt of the eye with respect to the central axis of the patient interface, the circuit determines an apex of a tilted incision surface by a co-tilt of the incision surface corresponding to the tilt of the eye, and determines a transformed treatment path, which extends around the apex and determines treatment points on the tilted incision surface.

Provided is a technology that facilitates the estimation of temporal changes in measurement values of a subject from measurement values of a comparable person.　The present invention constitutes a measurement results display system comprising: a measurement information acquisition unit that acquires measurement information indicating temporal changes in measurement values obtained by measuring respective subject eyes of a first subject and a second subject by using an ophthalmic device; a measurement information adjustment unit that shifts the measurement information of the second subject on a time axis by a shift amount corresponding to the age difference between the second subject and the first subject, in a direction that eliminates the age difference; and a display control unit that causes a display unit to display the measurement information of the second subject after the shift and the measurement information of the first subject in a manner that allows for comparison.

To provide an ophthalmic device that can improve the ease of simultaneously comparing the appearance of two sets of lines extending in mutually orthogonal directions. [Solution] An ophthalmic device 1 comprises a display unit 22 capable of displaying an astigmatism test chart 45 for obtaining the astigmatism axis angle, and a control unit that controls the display unit 22 to rotate and display the astigmatism test chart 45 within the display unit 22. The astigmatism test chart 45 has a first target 46 consisting of a plurality of first straight lines 46a arranged in parallel at predetermined intervals, and a second target 47 consisting of a plurality of second straight lines 47a arranged in parallel at predetermined intervals and extending in a direction perpendicular to the first straight lines 46a. The first target 46 is displayed in a circular first region 48. The second target 47 is displayed in a ring-shaped second region 49 surrounding the first region 48.

Systems and method for treating corneal ectasias such as keratoconus involve contacting the corneal surface to an aperture-free molding lens under vacuum pressure and cross-linking corneal tissue using UV laser or LED light in the presence of a photosensitive substance such as riboflavin. After release of vacuum, oxygen is applied to the corneal surface to enhance the cross-linking of corneal fibers. Systems may include an imaging system, user interface, vacuum regulator and controller to provide rapid diagnosis and treatment. In some embodiments, the systems may be used to treat glaucoma by applying vacuum without cross-linking of corneal fibers.

An ophthalmological device and system is described that allows the simultaneous imaging of an eye using both scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT). Further the device and system is capable of targeting and delivering a treatment laser for treatment of an eye condition.

To provide an ophthalmic device that can measure corneal shape without increasing the subject's discomfort due to glare. [Solution] An ophthalmic device for measuring the corneal shape of an eye under examination, comprising: a first projection optical system that projects a first pattern indicator onto the cornea of ​​the eye under examination using invisible light; a second projection optical system that projects a second pattern indicator onto the cornea of ​​the eye under examination using visible light; an anterior segment imaging optical system that receives reflected light from the anterior segment of the eye under examination; and a control unit, wherein the control unit analyzes and processes imaging data obtained by receiving the reflected light of the first pattern indicator projected onto the cornea of ​​the eye under examination by the first projection optical system with the anterior segment imaging optical system to determine whether or not corneal shape measurement of the eye under examination can be performed, and if it is determined that corneal shape measurement is possible, the second projection optical system projects a second pattern indicator onto the cornea of ​​the eye under examination, and analyzes and processes imaging data obtained by receiving the reflected light of the second pattern indicator with the anterior segment imaging optical system to measure the corneal shape.

To generate an HDR image (high dynamic range image) without disturbance even when a subject blinks during image photographing.SOLUTION: A photographing unit 10 that photographs an eyeball image of a subject at a constant time interval for each of different exposure conditions, a storage unit 20 that stores the eyeball image together with photographing time information as photographing data and stores an eyeball image selected from the eyeball images of the photographing data as a reference image, and a calculation unit 50 that stores a copy of the reference image as an output image in the storage unit 20, performs HDR processing on the output image to generate an HDR image, and determines whether or not the eyeball image of the photographing data is the same as the reference image, when the calculation unit 50 determines that the eyeball image and the reference image are the same in chronological order of the photographing time information, the calculation unit 50 executes processing of superimposing the eyeball image on the output image to update the output image and storing the output image in the storage means 20 on the eyeball image under the same exposure condition to generate an HDR image.SELECTED DRAWING: Figure 1

An ophthalmic device that may include: a light source; a measurement optical system that generates measurement light; a first reference optical system that generates first reference light; a second reference optical system that generates second reference light; and an interference optical system that generates measurement interference light from the measurement light and the first reference light, and reference interference light from the first and second reference light. The measurement optical system may include a switching unit that switches between a first state in which the subject eye is irradiated with the light from the light source and a second state in which the light from the light source is guided to the second reference optical system branching from the measurement optical system. The controller may control the switching unit to detect the measurement interference light in the first state, and the reference interference light in the second state.

To provide an ophthalmic device control program that can appropriately release the accommodation of the eye being examined. [Solution] An ophthalmic device control program executed in a control unit 40 that controls an ophthalmic device 1 comprising an eye refractive power measurement system 43 for objectively measuring the ocular characteristics of the eye E under examination, and a target projection system 42 for presenting a fixation target to the eye E under examination at a predetermined presentation position and creating a cloud over the eye E, wherein the control unit 40 is instructed to perform the following steps: an objective measurement step of changing the presentation position of the fixation target in a direction that increases the amount of cloud, causing the target projection system 42 to present the fixation target, and objectively measuring the ocular characteristics in a time series using the eye refractive power measurement system 43; and an estimation step of estimating the tension tendency of the eye under examination, which indicates the property of each eye under examination to cloud, based on the objective measurement results of the ocular characteristics measured in a time series.

This invention is directed to compounds and compositions which are designed for use in light adjustable ophthalmic devices, such as intraocular implants, intraocular lenses, phakic intraocular lenses, contact lenses, orthokeratology lenses, rigid gas permeable lenses, corneal inlays, corneal outlays, or corneal inserts. The inventive compositions are produced from reactive monomer mixtures which when polymerized form polymers or polymeric networks having editable refractive indices. Such inventive compositions when exposed to light of certain wavelengths undergo intramolecular cycloaddition reactions thereby changing the refractive index in the irradiated regions. When used in ophthalmic devices, the inventive compositions enable post-manufacturing and / or post-operative adjustments to the optics of the devices by spatially modifying the refractive index. For example, the vision of a patient with an intraocular lens made of the inventive compositions can be fine-tuned after implantation and healing by a light treatment of the intraocular lens.

An ophthalmological device according to a non-limiting embodiment of the present disclosure comprises an OCT scanner and one or more processors connected to a storage device. The OCT scanner includes an interference optical system and an optical path length changing unit. The interference optical system has a sample arm and a reference arm. The optical path length changing unit changes the optical path length of at least one of the sample arm and the reference arm. The storage device pre-stores calibration information including one or more calibration parameter values. The one or more processors generate an OCT image of an eye to be examined on the basis of data collected by the OCT scanner by applying an OCT scan to the fundus of the eye to be examined. The one or more processors receive optical path length information indicating the optical path length of the arms when the data is collected. In addition, the one or more processors calculate the intraocular distance of the eye to be examined on the basis of the calibration information, the OCT image, and the optical path length information.

This invention is directed to compounds and compositions which are designed for use in light adjustable ophthalmic devices, such as intraocular implants, intraocular lenses, phakic intraocular lenses, contact lenses, orthokeratology lenses, rigid gas permeable lenses, corneal inlays, corneal outlays, or corneal inserts. The inventive compositions are produced from reactive monomer mixtures which when polymerized form polymers or polymeric networks having editable refractive indices. Such inventive compositions when exposed to light of certain wavelengths undergo intramolecular cycloaddition reactions thereby changing the refractive index in the irradiated regions. When used in ophthalmic devices, the inventive compositions enable post-manufacturing and / or post-operative adjustments to the optics of the devices by spatially modifying the refractive index. For example, the vision of a patient with an intraocular lens made of the inventive compositions can be fine-tuned after implantation and healing by a light treatment of the intraocular lens.

An ophthalmic apparatus is provided, comprising a light source (82; 84) arranged to emit a fixation target light, and a reflecting surface (68A) arranged to reflect a scanning light emitted by an emission segment, which is different from a source of the scanning light of the light source, and to scan the scanning light in a certain direction by changing an orientation. The ophthalmic apparatus further comprises a concave mirror surface (70A) arranged such that, when an eye (38) of a subject is brought to a focal point of the concave mirror during use of the ophthalmic apparatus, the scanning light reflected by the reflecting surface (68A) is incident on a fundus of the subject, and arranged such that, when the eye (38) of the subject is brought to the focal point of the concave mirror (70) during use of the ophthalmic apparatus and when the light source (82; 84) emits the fixation target light, the fixation target light and the scanning light are simultaneously incident on the fundus via different optical paths, which both propagate via the concave mirror surface (70A) and the focal point, the fixation target light proceeding along a predetermined optical path for fixation of a gaze of the eye (38) of the subject.

The invention relates to a scanner device (100) for an ophthalmological device and to a method for operating same. The scanner device is provided with an input optical unit (110) for at least one laser beam (140); a first scanner (130a) and a second scanner (130b), which are provided behind the input optical unit in the propagation direction of the laser beam and are each designed to deflect the laser beam in a direction laterally, in particular perpendicularly, to the propagation direction of the laser beam; and a scanning optical unit (150), which is provided behind the first and the second scanner in the propagation direction of the laser beam and is designed to focus the laser beam onto a plurality of predetermined target points in an image field (160). At least one collecting optical element (172) is provided between the first scanner and the second scanner in the propagation direction of the laser beam. The laser beam is projected onto a curved intermediate image (174) for the image field (160).

An ophthalmic device according to an exemplary embodiment includes a Scheimpflug imaging system and an illumination system. The Scheimpflug imaging system is configured so as to satisfy the Scheimpflug condition, and generates data by imaging the anterior segment of an eye to be examined. This Scheimpflug imaging system includes an image sensor. The image sensor is disposed on the image plane of the Scheimpflug imaging system and is disposed eccentrically with respect to the optical axis of the Scheimpflug imaging system. The illumination system projects illumination light onto the object plane of the Scheimpflug imaging system.

To provide ophthalmic devices and methods for treating glaucoma, ocular hypertension (OHT), and other diseases. [Solution] The system comprises a radiation source (48) and a controller (44). The controller is configured to: designate multiple target regions (84) of the patient's (22) eye (25) to irradiate with different amounts of energy; cause the radiation source to irradiate at least a first target region of the multiple target regions; after causing the radiation source to irradiate at least a first target region of the multiple target regions, process an image of the eye to identify changes in the eye; and in response to the identification of changes in the eye, cause the radiation source to refrain from irradiating a second target region of the multiple target regions that have not yet been irradiated with the amount of energy specified for the second target region. Other embodiments are also described.

This invention is directed to compounds and compositions which are designed for use in light adjustable ophthalmic devices, such as intraocular implants, intraocular lenses, phakic intraocular lenses, contact lenses, orthokeratology lenses, rigid gas permeable lenses, corneal inlays, corneal outlays, or corneal inserts. The inventive compositions are produced from reactive monomer mixtures which when polymerized form polymers or polymeric networks having editable refractive indices. Such inventive compositions when exposed to light of certain wavelengths undergo intramolecular cycloaddition reactions thereby changing the refractive index in the irradiated regions. When used in ophthalmic devices, the inventive compositions enable post-manufacturing and / or post-operative adjustments to the optics of the devices by spatially modifying the refractive index. For example, the vision of a patient with an intraocular lens made of the inventive compositions can be fine-tuned after implantation and healing by a light treatment of the intraocular lens.

We provide a system for communicating with ophthalmic devices. [Solution] The system 200 for communicating with an eye device comprises an eye device (contact lens) 205 and an auditory computing system (earphone). The eye device 205 includes a main unit, a transmitter 230 coupled to the main unit, an output device 235 coupled to the main unit, and a user communication device 240 coupled to the main unit. The auditory computing system has an accelerometer 360 configured to detect user movement. The user communication device 240 displays a message based on the detection by the accelerometer 360.