A61B3/152

Ophthalmic apparatus
09757026 · 2017-09-12 · ·

An ophthalmic apparatus which photographs an endothelial cell and measures a coat thickness of a cornea of an eye to be examined in a non-contact manner; comprising an image pickup unit (19) for photographing a corneal endothelium of the eye to be examined, a control unit (49) for detecting a cell wall of the endothelial cell from a corneal endothelial image photographed by the image pickup unit and for performing an image processing of hatching the cell wall with a boundary line, a display unit (54) for displaying an analytical image in which the cell wall hatched with the boundary line, and an operation unit (55), wherein the control unit changes the shading of the boundary line based on an input from the operation unit.

Ophthalmoscope device

An ophthalmoscope device includes a support structure, an image capture device, and a display device. The support structure is configured to be worn by a subject. The image capture device is configured to capture images of the eye fundus of the subject. The display device is configured to overlay images in the field of view of the subject. The overlaid images are used to align the pupil/fovea orientation axis with the optical axis of the image capture device.

System and method for performing tear film structure measurement and evaporation rate measurements

A system and method are described for performing tear film structure measurement. A broadband light source illuminates the tear film. A spectrometer measures respective spectra of reflected light from at least one point of the tear film. A color camera performs large field of view imaging of the tear film, so as to obtain color information for all points of the tear film imaged by the color camera. A processing unit calibrates the camera at the point measured by the spectrometer so that the color obtained by the camera at the point matches the color of the spectrometer at the same point. The processing unit determines, from the color of respective points of the calibrated camera, thicknesses of one or more layers of the tear film at the respective points. Other applications are also described.

OPHTHALMOLOGICAL DEVICE
20170251920 · 2017-09-07 · ·

The ophthalmological device of an embodiment includes an optical system for inspection, a display, a subject's eye position acquiring unit, and a control unit. The optical system for inspection includes a photographic optical system for photographing an eyeground of the subject's eye. The subject's eye position acquiring unit acquires a three-dimensional position of the subject's eye. The control unit acquires information on positional displacement of the optical system for inspection with respect to the subject's eye on the basis of the three-dimensional position to cause a screen of the display to display two alignment index images to be varied in position with respect to a reference position of alignment preset in the display in a pseudo manner, in accordance with the information on positional displacement.

OPHTHALMOLOGICAL DIAGNOSIS DEVICE
20220044403 · 2022-02-10 ·

There is provided a technique for reducing a burden on a patient during an examination and presenting an objective examination result. An ophthalmological diagnosis device (102) for providing information to assist in making a diagnosis on a cornea includes: an input unit that receives an input of video image data from an external device (101); an output unit that outputs image data; a storage unit that stores an evaluation criterion for an injury of the cornea; and a processing unit that processes data. The processing unit generates a diagnosis image based on a position of the cornea in each still image of the video image data, the processing unit divides the cornea captured in the generated diagnosis image into a plurality of regions, and evaluates an injury in each of the divided regions based on the evaluation criterion, the processing unit generates diagnosis information (204) in which the diagnosis image and information about the evaluation on the injury in each of the regions are superimposed on each other, and the processing unit outputs the diagnosis information (204) through the output unit.

OPHTHALMIC IMAGE PROCESSING APPARATUS AND OPHTHALMIC IMAGE PROCESSING PROGRAM

An ophthalmic image processing apparatus that processes pieces of image data of a subject eye which are acquired by a plurality of ophthalmic examination apparatuses including a first ophthalmic examination apparatus obtaining first image data of the subject eye and a second ophthalmic examination apparatus obtaining second image data of the subject eye includes: a processor; and memory storing computer readable instructions, when executed by the processor, causing the ophthalmic image processing apparatus to execute: setting process of setting image types for the first image data and the second image data that form a registration image; and image processing process of generating the registration image in which the first image data and the second image data which correspond to the image types set in the setting process are superimposed on each other, and outputting the generated registration image.

OPHTHALMOLOGIC APPARATUS AND COVER
20220233068 · 2022-07-28 ·

An ophthalmologic apparatus includes a device body having an eye information acquisition unit including an objective optical system configured to acquire information of a subject's eye, a drive unit configured to move the eye information acquisition unit relative to the subject's eye in upward-downward, rightward-leftward, and forward-rearward directions, and a control unit configured to control the eye information acquisition unit and the drive unit and a casing covering the device body and having an opening provided with a cover configured to cover the opening, and the cover includes a first cover portion movable to the casing in the upward-downward and rightward-leftward directions, being disposed in the opening not to move in the forward-rearward direction and a second cover portion attached to an outer periphery of the objective optical system and inserted into the first cover portion, being movable to the first cover portion in the forward-rearward direction.

Ophthalmologic apparatus
11395585 · 2022-07-26 · ·

An ophthalmologic apparatus includes an input portion configured to receive an ID that identifies at least one of an examiner or a subject; a storage portion configured to store examiner data with regard to a rotational position of a supporting arm member (support portion) about a vertical axis and a horizontal axis, the examiner data being predetermined to correspond to the ID; and a drive control portion configured to select the examiner data stored in the storage portion based on the ID received by the input portion, and to control a drive portion based on the examiner data and a detection result of the position detection portion so that the rotational position of the supporting arm member about the vertical axis and the horizontal axis coincides with a predetermined rotational position.

METHOD AND SYSTEM FOR MAKING OPTICAL MEASUREMENT OF EYE
20220225875 · 2022-07-21 ·

A method and device: pass a probe beam to the retina of an eye through a refractive region of a combined diffractive-refractive intraocular lens (IOL) which is implanted into the eye; provide light returned from the retina to a wavefront sensor which includes a detector array and images the returned light onto the detector array to produce a first set of light spots which returned from the retina through the refractive region of the combined diffractive-refractive IOL and a second set of light spots which returned from the retina through a diffractive region of the combined diffractive-refractive IOL; select a first region of the detector array which includes at least some of the first set of light spots and excludes the second set of light spots; and determines a refraction of the eye with the combined diffractive-refractive IOL implanted therein using only data from the first set of light spots.

Ophthalmologic apparatus and method of controlling the same
11202566 · 2021-12-21 · ·

An ophthalmologic apparatus includes a data acquisition unit, a movement mechanism, an image acquisition unit, an analyzer, and a controller. The data acquisition unit includes an optical system for optically acquiring data of a fundus of a subject's eye. The movement mechanism is configured to change relative position between the subject's eye and the data acquisition unit. The image acquisition unit is configured to acquire an image of the fundus. The analyzer is configured to specify a relative movement direction and relative movement amount of the data acquisition unit with respect to the subject's eye based on a flare region formed all around a fundus region in the image. The controller is configured to control the movement mechanism based on the relative movement direction and the relative movement amount to change relative position between the subject's eye and the data acquisition unit in an optical axis direction of the optical system.