67 results about "Ophthalmological device" patented technology

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. The system further can include a machine learning algorithm to provide a suggested treatment procedure.

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.

An ophthalmic device including an interference optical system that detects interference light between signal light obtained by scanning an examined eye with light from a light source and reference light configured from light divided from the light source, an adjustment section that is disposed on an optical path of at least one out of the signal light or the reference light, and that adjusts a polarization state of light propagating along the at least one optical path such that a polarization state of the signal light is the same as the polarization state of the reference light, and a control section that controls the adjustment section according to a scan angle scanned on the examined eye.

The present disclosure relates to an ophthalmological device for surgical treatment of a cornea of an eye, the ophthalmological device comprising a laser source, a focusing optics, a scanner system and an electronic circuit. The electronic circuit is configured to control a first scanner device of the scanner system to move the focal spot with a first scanning speed along a line, thereby forming a scan line, to control a second scanner device of the scanner system to move the scan line with a second scanning speed along a predetermined processing path, which extends inside the cornea, for treating the cornea, and to control the ophthalmological device to vary at least one of: a geometrical parameter of the scan line or a physical parameter of the scan line, along the predetermined processing path.

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.

The present invention discloses a head-mounted ophthalmic OCTA device. The head-mounted ophthalmic OCTA device includes: a head-mounted shell, an optical path system and an adjustment mechanism, the adjustment mechanism is in transmission cooperation with the optical path system, and is at least used to move the optical path system to a specified position; wherein, the optical path system includes an imaging optical path and an auxiliary alignment optical path, the imaging optical path is at least used to collect image information of the detected eyeball, and the auxiliary alignment optical path is at least used to guide the gaze point position of the detected eyeball so that the detected eyeball is aligned in the pupil distance direction. The display screen used in the head-mounted ophthalmic OCT device (probe) provided by the present invention can display different static or dynamic images, and the image is flexible and changeable, which can meet the requirements of different types of detected objects, and can make the two eyes of the detected object look at the display screen at the same time, guide the gaze point of the eyeball of the detected object to be aligned, thereby alleviating the fatigue when using single-eye gaze.

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 ophthalmological device for assessing eye conditions, comprising a body, one or more curved video screens disposed within the body and curved about a longitudinal axis, and a camera with lens within the body. When the device is in use and positioned in front of a patient's eye, the curved video screen is used to display an image, a pattern, or different types / colours / intensities of light, which is reflected by the patient's eye. The camera and lens captures the eye-reflected images, pattern, etc. in the form of images or a video file for further processing and analysis in accordance with conventional eye health assessment techniques.

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 a chin support device and an ophthalmologic apparatus which enable a subject to acquire information about a subject eye comfortably and appropriately.SOLUTION: An ophthalmologic apparatus 100 comprises: a pair of right and left measurement heads 16 each having a measurement optical system 21 for acquiring information about a subject eye; an optical table 12 for supporting the measurement heads 16; and a chin support device 18 for supporting the chin of a subject and detachably attached to the optical table 12. The chin support device 18 comprises: an attachment 181 detachably attached to the optical table 12; and a chin support portion 182 provided projectingly from the attachment 181 toward the chin of the subject to support the chin.SELECTED DRAWING: Figure 1

The invention provides an ophthalmic apparatus which can easily detect eye position deviation when brightness difference of a visual target presented to a left eye and a right eye is enlarged from a double-eye visual state. An ophthalmic apparatus (1) is provided with a visual target presentation means (visual target projection system (44)) for presenting a left-eye visual target (OtL) to a left subject eye (EL) and presenting a right-eye visual target (OtR) to a right subject eye (ER), and the left-eye visual target (OtL) and the right-eye visual target (OtR) are in the same form. A sighting target presentation means (sighting target projection system (44)) presents a left-eye sighting target (OtL) to a left subject eye (EL) and presents a right-eye sighting target (OtR) to a right subject eye (ER), thereby enlarging the brightness difference between a common portion of the left-eye sighting target (OtL) and the right-eye sighting target (OtR) and maintaining the brightness difference between the remaining portions of the left-eye sighting target (OtL) and the right-eye sighting target (OtR).

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.

An ophthalmic apparatus includes an illumination optical system including a slit in which a slit-shaped aperture is formed and an iris aperture in which two apertures are formed at positions away from an optical axis position, the iris aperture being arranged at a position substantially conjugate optically to an iris of a subject's eye between a light source and the slit, and configured to generate slit-shaped illumination light using light from the light source and to guide the illumination light to a fundus of the subject's eye; and an imaging optical system including an imaging aperture in which an aperture is formed, and configured to guide returning light of the illumination light to an image sensor, the returning light being guided from the fundus by pupil division and passing through the aperture formed in the imaging aperture. A width of the slit-shaped aperture, a distance between the two apertures, and a size of the aperture in the imaging aperture are set so that an overlap region of a light flux region of the illumination light and a light flux region of the returning light is located on a side of the fundus from a posterior surface of lens of the subject's eye within the eye of the subject eye.

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 relates to a model eye unit comprising a lens assembly removably attached to an anterior scleral casing and a middle section removably coupled to the anterior scleral casing. In the model eye unit, the middle section is removably and height adjustably coupled to a posterior scleral section and the lens assembly includes a cornea lens. Further the invention relates to a method comprising in a first procedure, mounting a model eye unit to a laser device, focusing a laser beam on a first iris disc in a lens assembly of the model eye unit via operation of the laser device, removing the laser treated iris disc from the model eye unit, and reconfiguring the lens assembly for a second procedure.

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 according to a non-limiting embodiment of the present disclosure comprises a scanning unit, an image construction unit, an optical path length changing unit, and an intraocular distance calculation unit. The scanning unit generates a first interference signal by subjecting the fundus of a subject eye to a first optical coherence tomography scan. The image construction unit constructs a first optical coherence tomography image on the basis of the first interference signal generated by the scanning unit. The optical path length changing unit changes the optical path length of the scanning unit. The intraocular distance calculation unit calculates an intraocular distance on the basis of at least a first optical coherence tomography image constructed by the image construction unit and optical path length information indicating the optical path length when the fundus was subjected to the first optical coherence tomography scan by the scanning unit.

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.

To provide an ophthalmologic apparatus and a control program of an ophthalmologic apparatus capable of performing alignment between the cornea apex of an eye to be examined and a measurement optical axis more accurately.SOLUTION: A control part performs an alignment step for preforming relative positioning between a measurement optical axis which is a common optical axis of a light projection optical system and a light reception optical system, and the cornea of an eye to be examined on the basis of an observation image of the anterior eye part captured by an anterior eye part observation optical system. In the alignment step, the control part can perform a measurement reflection image alignment step. In the measurement reflection image alignment step, the control part performs relative positioning between the measurement optical axis and the cornea using both an alignment index image 42 projected on the cornea of the eye to be examined by an alignment index projection optical system and a reflection image 51 of the measurement light projected by the light projection optical system and reflected by the cornea of the observation images 20 of the anterior eye part.SELECTED DRAWING: Figure 9

An ophthalmic device for treating an eye includes a laser source, a scanner system and an application head with a focusing optic and a patient interface for docking the application head onto the eye. Moreover, the ophthalmic device includes a measurement system for optically capturing eye structures when the application head is docked to the eye and a circuit which is configured to determine reference structures of the eye, which are arranged in ring-shaped fashion about the center axis of the anterior chamber of the eye, from the captured eye structures and to arrange a defined three-dimensional treatment model with respect to these reference structures in order to process a three-dimensional treatment pattern in accordance with the arranged three-dimensional treatment model in the eye.

An ophthalmic device includes a scanning member, an objective lens, and an optical element. The objective lens includes a first lens group and a second lens group in order from the scanning member side. The optical element is capable of being inserted into and removed from an optical path between the second lens group of the objective lens and the scanning member. In a case in which the optical element is not inserted into the optical path, the objective lens configures a first observation optical system. In a case in which the optical element has been inserted into the optical path, the objective lens and the optical element configure a second observation optical system.

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.