Abstract: A subjective optometry apparatus has a projection optical system including a visual target presenting portion and an optical member to project a target light flux toward a subject eye, and causing the target light flux to be incident on the optical member with a deviation of the incident target light flux from an optical axis of the optical member, a housing accommodating the projection optical system, a presentation window for emitting the target light flux from the inside of the housing to the outside thereof, an eye refractive power measurement unit provided outside the housing, and holding means integrally connecting the housing to the eye refractive power measurement unit to hold the eye refractive power measuring unit. When using the eye refractive power measuring unit, a distance from the presentation window to the eye refractive power measurement unit in an optical path is equal to or less than 180 mm.

Abstract: An OCT device includes an OCT optical system and a controller that also serves as an image processor. The controller acquires the OCT data of the fundus by processing the spectral interference signal output from the OCT optical system. In addition, the controller adjusts the position of the high accuracy region, which is the depth region where relatively high accuracy OCT data is obtained, by controlling the OCT optical system in accordance with the curvature level of the fundus image in the photographing range of the OCT data. This makes it possible to acquire good OCT data regardless of the curvature level of the fundus.

Abstract: An OCT apparatus has a wavelength sweep light source changing a sweep frequency between a first sweep frequency and a second sweep frequency, an OCT optical system, an image processor, an FPN generation optical system generating a first FPN and a second FPN generated at a position separated from a zero delay position with respect to the first FPN, a detector, and a controller. The controller acquires first correction information based on the first FPN detected in a case of the first sweep frequency, and second correction information based on the second FPN detected in a case of the second sweep frequency. The controller applies the first correction information to an arithmetic process on a spectral interference signal obtained in the case of the first sweep frequency, and the second correction information to the arithmetic process on the spectral interference signal obtained in the case of the second sweep frequency.

Abstract: An OCT device that selectively captures OCT data of a fundus of a subject eye and OCT data of an anterior segment of the subject eye. The OCT device includes a spectroscopic optical system that spectroscopically detects interference light between reference light and reflection light of measurement light irradiated on the subject eye. The spectroscopic optical system includes a collimating system that collimates the interference light, a spectrally dispersive element that spectrally disperses the collimated interference light for each spectral wavelength, an image formation system that forms an image of the interference light for each spectral wavelength on an imaging surface, and a light receiving element disposed on the imaging surface. An object-side focal length of the collimating system is shorter than an image-side focal length of the image formation system.

Abstract: A processor of an ophthalmologic image processing device acquires a plurality of B scan OCT data of a tissue of a subject eye, in which the plurality of B scan OCT data is captured at different scan positions, collectively sets an extraction region in the plurality of B scan OCT data to include an image of the subject eye in each of the plurality of B scan OCT data, and displays, on a predetermined display region, a plurality of extracted OCT data extracted from the respective B scan OCT data. Each of the plurality of extracted OCT data is switched to be alternatively displayed.

Abstract: An OCT signal processing device has an acquisition unit for acquiring three or more OCT signals being temporally different from each other with respect to the same position on a subject, from an OCT device that detects an OCT signal based on reflection light of measurement light applied to a subject and reference light corresponding to the measurement light, and a calculation unit for calculating motion contrast based on a plurality of OCT signals. The calculation unit selects two or more sets of OCT signals having different time interval between the OCT signals among sets obtained by extracting a plurality of OCT signals out of the three or more OCT signals, and calculates motion contrast for each of the selected two or more sets.

Abstract: A processor of a fundus image processing device acquires a fundus image 50 photographed by a fundus image photographing device. The processor acquires blood vessel images 60A and 60B that indicate at least one of an arteriole and a venule in the fundus image 50 by inputting the fundus image 50 into a mathematical model trained by a machine learning algorithm. The processor acquires a blood vessel area that is an area of at least one of the arteriole and the venule in the whole of the blood vessel images 60A and 60B.

Abstract: An ophthalmic imaging apparatus includes an OCT optical system that detects an interference signal between measurement light with which a subject eye is irradiated and reference light, and acquires OCT data of the subject eye by processing the interference signal, a scanner that scans with the measurement light on a scanning line on the subject eye, and a processor. The processor determines whether or not the OCT data acquired on the scanning line is proper, controls the scanner based on a determination result to change the scanning line for the measurement light to the next scanning line, and interpolates an alternative to OCT data determined not to be proper, based on OCT data corresponding to scanning lines around a scanning line on which the OCT data determined not to be proper is acquired.

Abstract: A subjective optometry apparatus subjectively measures optical characteristics of a subject eye. The subjective optometry apparatus includes a light projecting optical system, an optical path switching portion that switches between a first optical path having a first examination distance and a second optical path having a second examination distance, and an examination distance changing portion that optically changes the first examination distance or the second examination distance. Based on examination distance information, the examination distance changing unit causes the optical path switching portion to set an optical path to either the first optical path or the second optical path, and drives a distance changing optical member in the set optical path to optically change the examination distance to an examination distance different from the first examination distance and the second examination distance.

Abstract: A control section of an ophthalmologic image processing apparatus acquires an ophthalmologic image captured by an ophthalmologic image capturing apparatus. The control section acquires, for the acquired ophthalmologic image, evaluation information indicating an appropriateness for acquiring medical data including at least any of an analysis result relating to a disease of a subject eye, an analysis result relating to the structure of the subject eye, and an image converted from the acquired ophthalmologic image. The control section acquires the medical data based on the acquired ophthalmologic image. The control section changes a medical data acquisition method according to whether or not the evaluation information on the ophthalmologic image satisfies a criterion.

Abstract: A computer displays a part or the entirety of a first image, which is one of the plurality of registered images, in a first display region on a monitor, receives a switching instruction to switch an image displayed in the first display region, in a state where the first image is displayed in the first display region, from the first image to a second image which is one of the plurality of registered images and is different from the first image, and displays a part or the entirety of the second image adjusted based on the displacement information to match a region on the subject eye indicated in the first display region with the first image, in the first display region based on the switching instruction.

Abstract: A grinding water treatment device for eyeglasses lens processing includes a centrifugal separator, a scraping unit, an opening, and a filter. The centrifugal separator includes a dehydration tank into which grinding water used in a processing device of an eyeglasses lens is introduced, and separates the grinding water into water and processing chips by rotation of the dehydration tank. The scraping unit scrapes out the processing chips accumulated on a side wall inside the dehydration tank. The opening is provided in the dehydration tank and through which the processing chips scraped out by the scraping unit are ejected to an outside of the dehydration tank. The filter is provided in an outer region of the opening, and through which the water separated from the grinding water by rotation of the dehydration tank passes to allow the processing chips to be present inside the dehydration tank.

Abstract: An OCT apparatus includes an OCT optical system that has a light splitter splitting light from an OCT light source to light travelling to a measurement light path and light travelling to a reference light path and a detector detecting a spectrum interference signal of measurement light guided to a subject eye through the measurement light path and reference light from the reference light path, and a processing unit that processes the spectrum interference signal to generate OCT data. The processing unit performs at least complementary processing on an overlapping region of a real image and a virtual image in OCT data based on a plurality of OCT data obtained with different optical path lengths when detecting the spectrum interference signal, and generates OCT data subjected to the complementary processing.

Abstract: An image processing device processes an image of a subject eye. The image processing device includes an image acquisition unit that acquires an image of the subject eye, a diagnosis unit that obtains a diagnosis result of the subject eye based on the image acquired by the image acquisition unit, and a display control unit that changes a display mode of a display unit based on the diagnosis result.

Abstract: A dye-deposited base body manufacturing apparatus manufactures a dye-deposited base body. The dye-deposited base body is used in a dyeing step of dyeing a resin body. A dye to be transferred to the resin body is deposited to a base body. The dye-deposited base body manufacturing apparatus is provided with a printing device, a conveyance device, and a base body movement device. The printing device prints a dye for dyeing the resin body on the base body. The conveyance device conveys a dyeing tray on which the dye-deposited resin body on which the dye is printed by the printing device is placed. The base body movement device moves the dye-deposited base body from a printing position by the printing device to a side of the conveyance device.

Abstract: An ophthalmic image processing device processes an ophthalmic image of a subject eye. The ophthalmic image processing device includes a controller which acquires an ophthalmic image including a tomographic image of a plurality of tomographic planes in a subject eye, acquires a probability distribution for identifying two or more tissues included in a plurality of tissues in the tomographic image, by inputting the ophthalmic image into a mathematical model trained with using a machine learning algorithm, generates a structural abnormality degree map showing a two-dimensional distribution of a degree of abnormality of a structure in the tissue, for each of the two or more tissues, based on the probability distribution, and simultaneously displays two or more structural abnormality degree maps generated for each of the two or more tissues side by side on a display device.

Abstract: A subjective optometry apparatus includes: a subjective measurer which has a corrective optical system disposed on an optical path of a light projecting optical system configured to project a target light flux toward an examinee's eye and configured to change an optical characteristic of the target light flux and which is configured to subjectively measure an optical characteristic of the examinee's eye; an acquisitor configured to acquire position information on at least one of examinee's right and left eyes; a determiner configured to determine, based on the position information acquired by the acquisitor, whether or not subjective measurement can be implemented in a binocular open state of the examinee's right and left eyes, thereby acquiring determination information; and a determination information output unit configured to output the determination information acquired by the determiner.

Abstract: An ophthalmic apparatus that examines an examinee's eye while an examination axis coincides with the examinee's eye, the ophthalmic apparatus including: a housing: an examination-purpose protrusion protruding along the examination axis toward the examinee's eye from an examinee's eye facing surface being a surface of the housing that faces the examinee's eye; an anterior segment imaging optical system configured to capture an image of the anterior segment of the examinee's eye; and a processor, wherein the processor executes: an anterior segment image acquisition step of acquiring the anterior segment image captured by the anterior segment imaging optical system; and a pupil position detection step of processing the acquired anterior segment image and detecting the position of the pupil of the examinee's eye while the influence of the shadow of the examination-purpose protrusion that appears in the anterior segment image is removed.

Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.

Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.