Ophthalmologic apparatus

Abstract

To provide an ophthalmologic apparatus capable of suitably and reliably delivering to a subject an instruction and an attention for acquiring information of a subject eye and smoothly acquiring information of the subject eye.SOLUTION: An ophthalmologic apparatus 100 comprises: a measurement head 16 having a measurement optical system for acquiring information of a subject eye; a cheek fitting part 18 having a first contact area 18b which a cheek of a subject comes into contact with; a bone conduction speaker part 20 provided in the first contact area 18b; a forehead fitting part 17 having a second contact area 17b which the forehead of the subject comes into contact with; a first sensor part 30 provided in the second contact area 17b; and a control unit which controls the measurement optical system, the bone conduction speaker part 20, and the first sensor part 30. The control unit controls the bone conduction speaker part 20 so as to output an instruction for acquiring the information of the subject eye.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to ophthalmic devices. [Background technology]

[0002] Conventionally, there is known an ophthalmic device that is used by being placed on a table, a floor, or the like, and includes a measurement head having a measurement optical system and arranged so as to be movable in horizontal and vertical directions, and a forehead rest (see, for example, Patent Document 1). With this ophthalmic device, the subject faces the ophthalmic device and places his / her forehead on the forehead rest to obtain information on the subject's eye through the measurement optical system. At this time, the subject opens his / her eyes or visually checks the optotype according to instructions or instructions from the examiner or the ophthalmic device for obtaining information on the subject's eye.

[0003] However, if the subject is elderly or has impaired hearing, or if there is a lot of noise in the surrounding area, the subject may have difficulty hearing the examiner's voice, making it difficult to obtain information about the subject's eye.

[0004] Meanwhile, Patent Document 2 discloses a medical image diagnostic device equipped with a bone conduction speaker that is attached to the head of a subject. The bone conduction speaker can transmit the operator's instructions to the subject even when the device is noisy or the subject wears earplugs to reduce noise.

[0005] However, in Patent Document 2, the bone conduction speaker is a pillow-shaped device that is detachable from the device, and is not provided on the device itself. Also, since instructions are only output unilaterally from the bone conduction speaker regardless of the subject's condition, it is unclear whether instructions are properly transmitted to all subjects. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2022-42080 [Patent Document 2] JP 2007-75410 A Summary of the Invention [Problem to be solved by the invention]

[0007] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide an ophthalmic device that can more appropriately and reliably convey instructions and instructions for obtaining information about the subject's eye to the subject, and can more smoothly obtain information about the subject's eye. [Means for solving the problem]

[0008] In order to achieve the above object, the ophthalmologic apparatus of the present disclosure includes an information acquisition unit that acquires information of a subject's eye, a contact area that is in contact with at least a part of a subject's face, a bone conduction speaker unit provided in the contact area, and a control unit that controls the information acquisition unit and the bone conduction speaker unit. The control unit controls the bone conduction speaker unit to output an instruction to acquire the information of the subject's eye. Effect of the Invention

[0009] An ophthalmic device configured in this manner can more appropriately and reliably convey instructions and warnings to the subject for obtaining information about the subject's eye, making it possible to obtain information about the subject's eye more smoothly. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view showing an overall configuration of an ophthalmic apparatus according to a first embodiment. [Diagram 2] 2 is a front view of the vicinity of a first sensor unit and a bone conduction speaker of the ophthalmologic apparatus according to the first embodiment. FIG. [Diagram 3] 2 is a diagram for explaining a schematic configuration of a measurement optical system of the ophthalmologic apparatus according to the first embodiment. FIG. [Figure 4] 2 is a block diagram showing the configuration of a control system of the ophthalmic apparatus according to the first embodiment. FIG. [Diagram 5]5 is a flowchart showing an example of an operation of the ophthalmologic apparatus according to the first embodiment. [Figure 6] 11 is a front view of the vicinity of a first sensor unit, a second sensor unit, and a bone conduction speaker of an ophthalmologic apparatus according to a second embodiment. FIG. [Figure 7] FIG. 7 is an enlarged view of a cross section taken along line AA in FIG. 6. [Figure 8] 13 is a front view of the vicinity of a first sensor unit, a second sensor unit, and a bone conduction speaker unit of an ophthalmologic apparatus according to a modified example of Example 2. FIG. [Figure 9] FIG. 11 is a perspective view showing the overall configuration of an ophthalmic apparatus according to a third embodiment. [Figure 10] 13 is a front view of a face support unit provided with a first sensor unit, a second sensor unit, and a bone conduction speaker unit of an ophthalmologic apparatus according to a third embodiment. FIG. [Figure 11] FIG. 11 is a block diagram showing the configuration of a control system of an ophthalmic apparatus according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Example 1 An ophthalmic device 100 according to a first embodiment of the present disclosure will be described below with reference to Figs. 1 to 4. The ophthalmic device 100 according to the first embodiment is a binocular open-type ophthalmic device capable of acquiring information on both of a subject's eyes E (hereinafter referred to as "eye information") simultaneously with the subject P keeping both eyes E open (see Fig. 7). The ophthalmic device 100 of the first embodiment is also capable of acquiring eye information for each eye by blocking one eye or turning off the fixation target.

[0012] The ophthalmic device 100 of the first embodiment is a device capable of performing any objective test and subjective test. In the subjective test, the ophthalmic device 100 presents a visual target or the like to the subject P at a predetermined presentation position, and obtains a subjective test result as eye information based on the subject P's response to the visual target or the like. The subjective test includes subjective refraction measurements such as a distance test, a medium vision test, a near vision test, a contrast test, a night test, a glare test, a pinhole test, and a stereoscopic vision test, and a visual field test. In the objective test, the ophthalmic device 100 irradiates light to the subject's eye E and measures eye information based on the detection result of the return light. The objective test includes a measurement for obtaining characteristics of the subject's eye E as eye information, and a photograph for obtaining an image of the subject's eye E. Furthermore, objective examinations include objective refraction measurement (REF measurement), corneal shape measurement (KERATOM measurement), intraocular pressure measurement, fundus photography, tomography using optical coherence tomography (OCT photography), and measurements using OCT.

[0013] [Overall configuration of ophthalmic equipment] The ophthalmic device 100 of the first embodiment mainly includes a main body 10, an examiner controller 27, and a subject controller 28. As shown in Fig. 1, the main body 10 includes a base 11, an eye examination table 12, a support 13, an arm 14, a drive mechanism (drive unit) 15, a pair of measurement heads 16 (16L, 16R), a forehead rest 17, a pair of cheek rests 18 (18L, 18R), and a control unit 26. The ophthalmic device 100 acquires information of the subject's eye E while the subject faces the eye examination table 12 and places his / her forehead on the forehead rest 17 suspended between the measurement heads 16 and his / her cheek on the cheek rest 18. In this specification, the X-axis, Y-axis, and Z-axis are set as shown in FIG. 1, and when viewed from the subject P, the left-right direction is the X-direction, the up-down direction (vertical direction) is the Y-direction, and the direction perpendicular to the X-direction and Y-direction (the depth direction of the measuring head 16, that is, the front-back direction) is the Z-direction.

[0014] The base 11 is placed on the floor surface 1. The optometry table 12 is a desk on which the examiner controller 27, the subject controller 28, and other items used in the optometry are placed, and is supported by the base 11. The optometry table 12 may be supported by the base 11 so that its position in the Y direction (height position) is adjustable.

[0015] The support 13 is supported by the base 11 at the rear end of the optometry table 12 so as to extend in the Y direction, and has an arm 14 at its tip. The arm 14 suspends both measurement heads 16 above the optometry table 12 via a drive mechanism 15, and extends from the support 13 to the front side (Z direction). The arm 14 is movable in the Y direction relative to the support 13. The arm 14 may also be movable in the X direction and Z direction relative to the support 13. A pair of measurement heads 16 are supported at the tip of the arm 14 by being suspended by a pair of drive mechanisms 15.

[0016] The measurement heads 16 are provided in pairs to correspond to the left and right eyes E of the subject, respectively, and will be referred to as the left eye measurement head 16L and the right eye measurement head 16R when described individually below. The left eye measurement head 16L acquires information of the subject's left eye E, and the right eye measurement head 16R acquires information of the subject's right eye E. The left eye measurement head 16L and the right eye measurement head 16R are configured to be plane-symmetrical with respect to a vertical plane located midway between them in the X direction.

[0017] 1 to 3, each measurement head 16 is provided with a mirror 19 (19L, 19R) which is a deflection member, and houses a measurement optical system 21 (when describing each individually, they are referred to as a measurement optical system 21R for the right eye and a measurement optical system 21L for the left eye). Each measurement head 16 acquires information of the corresponding subject eye E by the measurement optical system 21 via the mirror 19.

[0018] Each measurement optical system 21 has an optical system (e.g., a Z alignment system, an XY alignment system, a keratometry system, a target projection system (target presenting unit), an anterior eye observation system, a reflex measurement projection system, and a reflex measurement light receiving system) configured using various optical elements. In Fig. 3, an objective lens 21a, an image pickup device 21b (image acquisition unit), and an alignment light source 21c are shown as examples of the optical elements of the measurement optical system 21.

[0019] Each measurement optical system 21 is composed of one or a combination of a vision testing device that performs a vision test by switching the visual target presented, a phoropter that obtains the appropriate corrective refractive power of the test eye E by switching and positioning corrective lenses, a refractometer and wavefront sensor that measure refractive power, a fundus camera that takes images of the fundus, a tomography device that takes tomographic images of the retina, a specular microscope that takes images of the corneal endothelium, a keratometer that measures the corneal shape, a tonometer that measures intraocular pressure, etc.

[0020] In the first embodiment, the drive mechanism 15 has a left eye drive mechanism 15L corresponding to the left eye measurement head 16L, and a right eye drive mechanism 15R corresponding to the right eye measurement head 16R. Each drive mechanism 15 is provided on a base portion suspended from the tip of the arm portion 14. Each drive mechanism 15 suspends each measurement head 16 movably. As shown in FIG. 4, the left eye drive mechanism 15L has a left eye vertical drive unit 22L, a left eye horizontal drive unit 23L, a left eye X-direction rotation drive unit (left eye horizontal direction rotation drive unit) 24L, and a left eye Y-direction rotation drive unit (left eye vertical direction rotation drive unit) 25L. The right eye drive mechanism 15R has a right eye vertical drive unit 22R, a right eye horizontal drive unit 23R, a right eye X-direction rotation drive unit (right eye horizontal rotation drive unit) 24R, and a right eye Y-direction rotation drive unit (right eye vertical rotation drive unit) 25R.

[0021] The configuration of each drive unit corresponding to the left-eye measurement head 16L and the configuration of each drive unit corresponding to the right-eye measurement head 16R are configured to be plane-symmetrical with respect to a vertical plane located midway between them in the X direction. Hereinafter, except when they are described individually, they may be simply referred to as the vertical drive unit 22, the horizontal drive unit 23, the X-direction rotation drive unit 24, and the Y-direction rotation drive unit 25. The same applies to other components provided symmetrically on the left and right.

[0022] The drive mechanism 15 is configured such that a vertical drive section 22, a horizontal drive section 23, an X-direction rotation drive section 24, and a Y-direction rotation drive section 25 are arranged in this order from the top.

[0023] The vertical drive unit 22 is fixed to a base unit at the tip of the arm unit 14, and moves the horizontal drive unit 23, the X-direction rotation drive unit 24, and the Y-direction rotation drive unit 25 in the Y direction (vertical direction) relative to the arm unit 14 based on a control signal from the control unit 26. The horizontal drive unit 23 is fixed to the vertical drive unit 22, and moves the X-direction rotation drive unit 24 and the Y-direction rotation drive unit 25 in the X direction and Z direction (horizontal direction) relative to the vertical drive unit 22 based on a control signal from the control unit 26.

[0024] The vertical drive unit 22 and the horizontal drive unit 23 are configured by providing an actuator that generates a drive force, such as a pulse motor, and a transmission mechanism that transmits the drive force, such as a combination of gears, rack and pinion, etc. The horizontal drive unit 23 can be easily configured and the control of horizontal movement can be easily performed by providing a combination of an actuator and a transmission mechanism separately for the X direction and the Z direction, for example.

[0025] The X-direction rotation drive unit 24 is connected to the horizontal drive unit 23. Based on a control signal from the control unit 26, the X-direction rotation drive unit 24 rotates the measurement head 16 and the Y-direction rotation drive unit 25 corresponding to the horizontal drive unit 23 in the X direction (horizontal direction) around a pair of left and right vertical eyeball rotation axes that pass through the eyeball rotation center of the corresponding subject eye E and extend in the vertical direction (Y direction) as centers (rotation axes).

[0026] The Y-direction rotation drive unit 25 is connected to the X-direction rotation drive unit 24. The measurement head 16 is suspended from this Y-direction rotation drive unit 25. Based on a control signal from the control unit 26, the Y-direction rotation drive unit 25 rotates the corresponding measurement head 16 relative to the X-direction rotation drive unit 24 in the Y direction (vertical direction, up-down direction) around a pair of left and right horizontal eyeball rotation axes that pass through the eyeball rotation point of the corresponding subject eye E and extend in the horizontal direction (X direction) as centers (rotation axes).

[0027] The X-direction rotation drive unit 24 and the Y-direction rotation drive unit 25 can be configured such that a transmission mechanism receiving a driving force from an actuator moves along an arc-shaped guide groove. By matching the center positions of the guide grooves with a pair of horizontal eyeball rotation axes and a pair of vertical eyeball rotation axes, respectively, the X-direction rotation drive unit 24 and the Y-direction rotation drive unit 25 can rotate the measurement head 16 around the pair of horizontal eyeball rotation axes and a pair of vertical eyeball rotation axes of the subject's eye E.

[0028] The X-direction rotation drive unit 24 can be configured to support the Y-direction rotation drive unit 25 and the measuring head 16 rotatably about a rotation axis provided therein, and to rotate the measuring head 16 while changing the supporting position in cooperation with the horizontal drive unit 23. The Y-direction rotation drive unit 25 can be configured to support the measuring head 16 rotatably about a rotation axis provided therein, and to rotate the measuring head 16 while changing the supporting position in cooperation with the vertical drive unit 22.

[0029] With the above configuration, the drive mechanism 15 can move each measurement head 16 individually or in conjunction with each other in the X, Y, and Z directions, and rotate each measurement head 16 in the X and Y directions around the vertical and horizontal eyeball rotation axes of the subject's eye E. In the ophthalmic apparatus 100 of the first embodiment, the control unit 26 drives and controls each of the drive units 22 to 25 of the drive mechanism 15 to move and rotate each measurement head 16. Furthermore, the examiner can manually drive each of the drive units 22 to 25 to move and rotate each measurement head 16.

[0030] In addition, the left eye X-direction rotation drive unit 24L and the right eye X-direction rotation drive unit 24R rotate the left eye measurement head 16L and the right eye measurement head 16R in the X direction (left and right direction) to diverge (divergence movement) or converge (convergence movement) the test eye E. In addition, the left eye Y-direction rotation drive unit 25L and the right eye Y-direction rotation drive unit 25R rotate the left eye measurement head 16L and the right eye measurement head 16R in the Y direction (up and down direction) to direct the line of sight of the test eye E downward or return it to its original position. In this way, in the ophthalmologic device 100, the test subject can perform a divergence movement and convergence movement test, and can perform tests at various test distances from a far-point distance test to a near-point distance test in a binocular vision state to measure eye information of both test eyes E.

[0031] The forehead rest 17 is a member against which the subject P places his / her forehead, and supports the subject P's face so that the direction and position of the face do not change. As shown in FIG. 2, the forehead rest 17 is suspended between the two measurement heads 16 by a forehead rest support rod 17a extending from the arm 14. The vertical position of the forehead rest 17 is adjusted by moving the arm 14 in the Y direction relative to the support 13. The forehead rest 17 is provided with a contact-type first sensor 30 in a second contact area 17b with which the subject P's forehead comes into contact. The first sensor 30 is connected to the control unit 26 via a wired or wireless communication path such as Bluetooth (registered trademark), and its operation is controlled. When the first sensor 30 detects that the subject P's forehead comes into contact with the forehead rest 17, it outputs the detection result to the control unit 26. In addition, the first sensor unit 30 is not limited to a contact type, but may be a non-contact type, measure the distance between the subject P and the forehead support unit 17, output the measurement result to the control unit 26, and the control unit 26 determines the presence or absence of contact between the subject P and the forehead support unit 17, the posture, etc. based on this distance.

[0032] The cheek rests 18 (18L, 18R) are members against which the subject P places both cheeks (more specifically, cheekbones). In addition to the forehead rest 17, the cheek rest 18 supports the face of the subject P, further increasing the stability of the face of the subject P. As shown in FIG. 2, the cheek rest 18 is suspended between the two measurement heads 16 and below the forehead rest 17 by a cheek rest support rod 18a extending from the arm 14. The vertical position of the cheek rest 18 is adjusted by moving the arm 14 in the Y direction relative to the support 13. In addition, each of the cheek rests 18L, 18R can be opened and closed in the direction toward and away from the subject P in the X direction by a known opening and closing mechanism according to the width of the face of the subject P. The cheek rests 18L, 18R are provided with bone conduction speaker units 20 (20L, 20R) in first contact areas 18b that come into contact with the cheeks near the ears of the subject P. The bone conduction speaker units 20L, 20R are connected to the control unit 26 via a wired or wireless communication path, and their operations are controlled. The bone conduction speaker units 20L, 20R transmit instructions from the control unit 26 in the form of audio signals to the subject P by bone conduction.

[0033] Each of the cheek rests 18L, 18R may be provided with a first sensor unit 30, or may be provided with a second sensor unit 31 (see FIG. 6, etc.) separately from the first sensor unit 30 as in a second embodiment described later.

[0034] The examiner's controller 27 is an information processing device that receives input operations by the examiner (e.g., input of a subject ID, examination items, parameters, instructions, etc.) and outputs a control signal to the control unit 26. The examiner's controller 27 is composed of, for example, a tablet terminal, a smartphone, or the like, and is separated from the main body unit 10 so as to be portable by the examiner. The examiner's controller 27 may be a notebook personal computer, a desktop personal computer, or the like, or may be a dedicated controller provided in the ophthalmic apparatus 100. The examiner's controller 27 communicates with the control unit 26 via communication means such as short-distance wireless or the Internet.

[0035] As shown in FIG. 4, the examiner's controller 27 mainly includes an operation-side control unit 27a, a display unit 27b, an input unit 27c, a microphone unit 27d, and a speaker unit 27e. The operation-side control unit 27a is made up of a microcomputer built into the examiner's controller 27. The display unit 27b is made up of a touch panel display provided on the surface of the examiner's controller 27. This touch panel display also functions as the input unit 27c. The microphone unit 27d collects the examiner's voice and converts it into an audio signal. The speaker unit 27e reproduces the audio signal from the control unit 26 and transmits it to the examiner. The operation-side control unit 27a controls the display unit 27b based on the measurement results and detection results transmitted from the control unit 26 to display an image. The operation-side control unit 27a also outputs a control signal corresponding to the operation on the input unit 27c and an audio signal collected by the microphone unit 27d to the control unit 26.

[0036] The subject controller 28 is a device used by the subject P to respond when acquiring information on the subject's eye E. The subject controller 28 includes, for example, a keyboard, a mouse, a joystick, a touch pad, a touch panel, etc. The subject controller 28 is connected to the control unit 26 via a wired or wireless communication path, and outputs a control signal to the control unit 26 in response to a response operation input to the subject controller 28.

[0037] The control unit 26 is provided on the base 11 of the main body 10, and controls each unit of the ophthalmologic apparatus 100. As shown in Fig. 4, the control unit 26 is connected to the above-mentioned left-eye measurement optical system 21L, right-eye measurement optical system 21R, left-eye vertical drive unit 22L, left-eye horizontal drive unit 23L, left-eye X-direction rotation drive unit 24L, and left-eye Y-direction rotation drive unit 25L of the left-eye drive mechanism 15L, right-eye vertical drive unit 22R, right-eye horizontal drive unit 23R, right-eye X-direction rotation drive unit 24R, and right-eye Y-direction rotation drive unit 25R of the right-eye drive mechanism 15R, examiner's controller 27, subject's controller 28, memory unit 29, bone conduction speaker unit 20 (20L, 20R), and first sensor unit 30, and controls them.

[0038] The control unit 26 includes an internal memory 26a. The control unit 26 loads a program stored in the connected storage unit 29 or the built-in internal memory 26a, for example, on a RAM, and thereby comprehensively controls the operation of the ophthalmic apparatus 100 in response to appropriate operations on the examiner's controller 27 and the subject's controller 28. In the first embodiment, the internal memory 26a is configured with a RAM or the like, and the storage unit 29 is configured with a ROM, an EEPROM, or the like.

[0039] The control unit 26 sets an examination procedure according to the examination items, parameters, instructions, etc. input from the examiner's controller 27, and executes an examination for acquiring eye information according to the set examination procedure. The examination items include the objective examination and subjective examination listed above. The parameters are, for example, information required for the examination, such as visual acuity value, initial value of correction power, optotype to be presented, examination distance, etc. The examination procedure is the order of the examination and the process of each examination (control process of each part by the control unit 26), etc., and for example, a procedure is set in which, after alignment, objective refraction measurement is performed as an objective examination, and then a more detailed examination of refractive power is performed as a subjective examination.

[0040] The control unit 26 controls each part of the ophthalmologic apparatus 100 in accordance with the examination procedure, executes the examination, generates an instruction voice signal corresponding to each examination item, and outputs the instruction voice signal from the bone conduction speaker unit 20. For example, when performing alignment or objective examination, the control unit 26 generates a voice signal instructing the subject P to stare at the image in front without blinking. When performing a subjective examination, the control unit 26 generates a voice signal for instructing the subject P's actions during the examination, such as the contents of the examination and how to answer questions. Details of these examination procedures and the corresponding voice signals are stored in the storage unit 29 in advance.

[0041] The control unit 26 may also acquire subject information on the subject P, and control the bone conduction speaker unit 20 to change at least one of the contents, language, sound frequency, and sound intensity of the instruction output from the bone conduction speaker unit 20 and output the instruction, depending on at least one of the subject's age, sex, race, and condition of the subject's eye E acquired from the subject information. The condition of the subject's eye E is, for example, characteristics and medical conditions of the subject's eye E, such as myopia, hyperopia, astigmatism, presbyopia, heterophoria, strabismus, cataract, etc. This enables the ophthalmologic device 100 to perform a more appropriate examination according to the individual characteristics of the subject P.

[0042] In the ophthalmologic apparatus 100 of the first embodiment, the subject ID can be acquired by inputting from the input unit 27c of the examiner controller 27 as an external device, or by scanning a patient registration card or a membership card with an external device such as a card reader (not shown). The control unit 26 acquires the age of the subject P from the subject information stored in advance in the storage unit 29 based on the acquired subject ID. The control unit 26 changes the content of the instruction to be output according to the age of the subject P. For example, if the subject P is an infant or a small child, a voice signal is generated that gives instructions slowly in simple words. Also, if the subject P is an elderly person or the like, since it is difficult to hear high-pitched frequencies or small sounds, the control unit 26 controls the bone conduction speaker unit 20 to output instructions by lowering the frequency or increasing the intensity of the sound. In addition, since the frequency that is easy to hear differs depending on gender, it is also preferable that the control unit 26 changes the frequency of the sound based on the gender of the subject information. It is also preferable that the control unit 26 obtains the nationality and language from the subject information and changes the language of the instructions accordingly. When the subject information includes the condition of the subject's eye E, the contents of the instructions can be changed based on this condition. The age, sex, nationality, and condition of the subject's eye E can also be directly input from the input unit 27c, etc.

[0043] The control unit 26 can also analyze, for example, measurement values ​​acquired by an objective test or simple test using the measurement optical system 21, or an anterior eye image or a face image captured by the imaging element 21b of the measurement optical system 21 or a separately provided camera, to estimate the age, sex, nationality, etc. of the subject P, or estimate the condition of the subject's eye E, such as visual acuity value, the presence or absence of disease, and the type of disease. Depending on the estimation result, the control unit 26 can change any of the instruction content, language, sound frequency, and sound intensity, increase or decrease the test items (types of test), change the order, simplify, or detail them, and generate an instruction voice signal according to the changed test procedure.

[0044] For example, it is known that the interpupillary distance increases with age, that people are more susceptible to presbyopia as they get older, that the color of the iris differs depending on race, etc. For this reason, the control unit 26 can infer the age from the interpupillary distance and the presence or absence of presbyopia based on the analysis results of anterior eye images, face images, etc. and simple test results, etc., and can infer the race (at least Japanese or non-Japanese) from the color of the iris and other characteristics, and can change any of the instruction content, language, sound frequency, and sound intensity depending on the inference result.

[0045] Furthermore, the control unit 26 can change the content of the sound output from the bone conduction speaker unit 20 based on the measurement result from the first sensor unit 30. The control unit 26 can recognize the contact state of the forehead of the subject P with the forehead support unit 17, for example, whether the contact is appropriate and whether the face of the subject P is facing an appropriate direction, from the measurement result from the first sensor unit 30, for example, the contact area, pressure, etc. For this reason, for example, when the forehead is not in contact with the forehead support unit 17, the control unit 26 can inform the subject P that the contact state of the face is inappropriate by not outputting sound until the forehead is placed against the forehead support unit 17 and interrupting the examination. Furthermore, when the contact state of the forehead with the forehead support unit 17 is inappropriate, the control unit 26 can generate a sound signal instructing the subject P to correct the position or direction of the face and output the sound from the bone conduction speaker unit 20.

[0046] An example of the operation of the ophthalmic apparatus 100 of the first embodiment configured as described above will be described below with reference to the flowchart in Fig. 5. In the flowchart in Fig. 5, the process of acquiring the age of the subject P based on the subject ID, performing an objective test with binocular vision, and then performing a subjective test will be described, but the operation of the ophthalmic apparatus 100 is not limited to the following process. In the following, it is assumed that the ophthalmic apparatus 100 is powered on and started up, and the control unit 26 is capable of communicating with the examiner's controller 27 and the subject's controller 28.

[0047] During the examination, the examiner has the subject P sit on a chair or the like, face the ophthalmologic apparatus 100, and place the subject P against the forehead rest 17 and both cheeks against the cheek rests 18. Meanwhile, the examiner inputs the subject ID and the examination items from the examiner controller 27. Then, when the examiner inputs an instruction to start the examination, the operation shown in the flowchart of FIG. 5 starts.

[0048] In step S1, the control unit 26 acquires the subject ID and the examination items, and in the next step S2, acquires the age from the subject information stored in association with the subject ID from the storage unit 29. At this time, the control unit 26 may control the left and right measurement optical systems 21 to start photographing the anterior segments of the left and right subject eyes E, and cause the display unit 27b of the examiner controller 27 to display left and right anterior segment images (frontal images).

[0049] In the next step S3, the control unit 26 acquires parameters, steps, etc. for each test from the storage unit 29 according to the acquired test items and parameters, and sets the test procedure. In the next step S4, the control unit 26 generates an audio signal of instructions to be transmitted to the subject P when executing the set test procedure, but may generate an audio signal for each test item. The audio signal is acquired from the storage unit 29 according to the test, but the wording, speech speed, wording, etc. may be changed according to the age acquired in step S2. The control unit 26 sets the frequency and intensity when outputting the audio signal according to the age.

[0050] In the next step S5, the control unit 26 acquires a detection result from the first sensor unit 30. In the next step S6, the control unit 26 determines whether or not the contact state of the forehead with the forehead support unit 17 is appropriate based on the detection result, and proceeds to step S7 if it is inappropriate, and proceeds to step S8 if it is appropriate.

[0051] In step S7, the control unit 26 generates an audio signal instructing the subject P to correct the position of his / her face, and outputs the audio signal from the bone conduction speaker unit 20. After that, the process returns to step S5, and steps S5 to S7 are repeated until the contact state of the forehead with the forehead support unit 17 becomes appropriate.

[0052] When the contact state of the forehead with the forehead support 17 becomes appropriate, the control unit 26 controls the left and right measurement optical systems 21 to perform alignment, and presents a fixation target for alignment (for example, a point light source target produced by lighting the alignment light source 21c) to the subject's eye E. In addition to presenting this fixation target, the control unit 26 causes the bone conduction speaker unit 20 to output an audio signal instructing the subject P to fixate the fixation target in step S8.

[0053] In the next step S9, the control unit 26 drives and controls the left and right drive mechanisms 15 to move the left and right measuring heads 16 in the X direction, Y direction, and Z direction, and rotates the left and right measuring heads 16 in the X direction or Y direction as necessary, thereby performing alignment.

[0054] Next, in order to perform an objective test, the control unit 26 controls the left and right measurement optical systems 21 to present a fixation target for the objective test (for example, a landscape painting) to the subject's eye E. In addition to presenting this fixation target, in step S10, the control unit 26 controls the bone conduction speaker unit 20 to output an audio signal instructing the subject P to fixate the fixation target.

[0055] In the next step S11, the control unit 26 controls the left and right measuring optical systems 21 to perform objective examinations such as corneal shape (kerato) measurement and eye refractive power (REF) measurement.

[0056] Next, in order to perform a subjective test, the control unit 26 controls the left and right measurement optical systems 21 to present a visual target for the subjective test to the subject's eye E. At this time, the control unit 26 may drive the left and right X-direction rotation drive units 24 in accordance with the test distance to rotate the left and right measurement heads 16 in the X direction so that the visual axis of the subject's eye E is oriented in accordance with the test distance.

[0057] Along with presenting the target, in step S12, the control unit 26 causes the bone conduction speaker unit 20 to output an audio signal instructing the subject P to input an answer to the appearance of the target, such as whether the target is visible, the orientation of the target, etc. The subject P inputs an answer by operating the subject controller 28 according to the instruction.

[0058] In the next step S13, the control unit 26 acquires information on the subject's eye E (for example, spherical power, cylindrical power, angle of the cylindrical axis, etc.) according to the presented optotype and the correctness of the answer input by the subject P. The control unit 26 may appropriately change the correction values ​​such as spherical power, cylindrical power, and angle of the cylindrical axis automatically or according to the examiner's touch operation on the input unit 27c, and have the subject P answer again about how he or she sees. The process of steps S12 to S13 is repeated for each test item of the subjective test.

[0059] When all the test items of the subjective test are completed, the control unit 26 proceeds to step S14 and causes the display unit 27b to display the test results. After that, the program proceeds to the end, and the operation (test) for acquiring eye information by the ophthalmic device 100 is completed.

[0060] As described above, the ophthalmologic apparatus 100 according to the first embodiment includes the measurement optical system 21 (information acquisition unit) that acquires information of the subject's eye E, the first contact area 18b that is in contact with at least a part of the face of the subject P, the bone conduction speaker unit 20 provided in the first contact area 18b, and the control unit 26 that controls the measurement optical system 21 and the bone conduction speaker unit 20. The control unit 26 controls the bone conduction speaker unit 20 to output an instruction for acquiring information of the subject's eye E.

[0061] With this configuration, the ophthalmic device 100 of the first embodiment transmits sound by vibrating the bones of the subject P using the bone conduction speaker unit 20. Therefore, the ophthalmic device 100 of the first embodiment can reliably transmit instructions and cautions for acquiring information on the subject's eye E to the subject P, and can more smoothly acquire information on the subject's eye E. As a result, the subject P can properly hear the instructions and cautions without being affected by external noise. In addition, since sound leakage to the surroundings can be suppressed, the ophthalmic device 100 of the first embodiment is also suitable for use in acquiring information on the subject's eye E in a quiet environment. In addition, in the ophthalmic device 100 of the first embodiment, the subject P can hear instructions and cautions issued by the examiner nearby with his or her own ears while listening to instructions and the like generated by the control unit 26 and output from the bone conduction speaker unit 20.

[0062] Furthermore, the bone conduction speaker unit 20 is provided in the first contact area 18b that comes into contact with at least a part of the face (cheek) of the subject P, like the cheek rest 18. Therefore, the subject P can hear instructions, etc., simply by touching his / her face to this first contact area 18b, and after the examination is completed, he / she only needs to move his / her face away from the first contact area 18b, and the only disinfection required is disinfecting the first contact area 18b. Therefore, compared to earphones inserted into the ears or headphones worn on the head, the bone conduction speaker unit 20 can be used more hygienically, the effort of putting it on and taking it off is eliminated, and cleaning and other operations are also facilitated.

[0063] (Modification of the first embodiment) In the ophthalmic device 100 of the first embodiment, the control unit 26 generates an audio signal and outputs it from the bone conduction speaker unit 20, but the present invention is not limited to this configuration. For example, as a modified example, the voice uttered by the examiner toward the microphone unit 27d of the examiner controller 27 can be output from the bone conduction speaker unit 20 under the control of the control unit 26. This allows the examiner to perform the examination while giving verbal instructions without relying on automatic voice. In addition, the examiner does not need to give instructions loudly or in the ear of the examinee P, and can clearly transmit instructions to the examinee P through the bone conduction speaker unit 20. Therefore, the ophthalmic device 100 of this modified example is particularly effective in that it can appropriately transmit verbal instructions from the examiner when, for example, the examiner operates the main body unit 10 in a place different from the installation place of the main body unit 10 in the same building, or when the examiner operates the main body unit 10 in a place away from the installation place of the main body unit 10 to perform a remote examination or the like.

[0064] As a further modified example, the ophthalmic apparatus 100 may be configured so that the subject P uses the ophthalmic apparatus 100 for the examination by himself / herself without the intervention of an examiner (so-called unattended examination). In this case, the control unit 26 may be configured to automatically start the examination and generate an audio signal according to the examination procedure when the presence of the subject P is detected by a human sensor or a camera (the image sensor 21b or an external camera, etc.) or when an examination item or an instruction to start the examination is input from the subject controller 28.

[0065] Example 2 An ophthalmic device 100A according to a second embodiment of the present disclosure will be described below with reference to Fig. 6 and Fig. 7. The ophthalmic device 100A according to the second embodiment has the same basic configuration as the ophthalmic device 100 according to the first embodiment shown in Fig. 1 and the like, except that the ophthalmic device 100A according to the second embodiment does not have a cheek rest 18 (18L, 18R) and has a shielding cover 40 (40L, 40R) having a bone conduction speaker unit 20 (20L, 20R) and a second sensor unit 31 (31L, 31R). Therefore, the same reference numerals as those in the first embodiment are used for the same configuration as the first embodiment, and detailed description thereof will be omitted.

[0066] The ophthalmologic apparatus 100A according to the second embodiment mainly includes a main body 10, an examiner controller 27, and a subject controller 28. The main body 10 includes a base 11, an eye examination table 12, a support 13, an arm 14, a drive mechanism 15, a pair of measurement heads 16L, 16R each having mirrors 19L, 19R and measurement optical systems 21L, 21R, a forehead rest 17, a pair of shielding covers 40L, 40R, and a control unit 26 (see FIGS. 1 to 4 and 6 to 7).

[0067] The forehead rest 17 has a second contact area 17b where the subject P's forehead comes into contact, and the first sensor unit 30 is provided. The shielding covers 40L, 40R have an opening 40a through which the subject's eye E looks, and are detachably attached to the measurement head 16 so as to surround the mirrors 19L, 19R. Since the shielding covers 40L, 40R are made of a flexible material such as polyurethane, the impact when they come into contact with the face of the subject P is suppressed. The shielding covers 40L, 40R are members that block the subject P's field of vision, and prevent the subject P from directing his or her gaze to anything other than the visual target. For this reason, the ophthalmic device 100A of the second embodiment guides the gaze to view the mirror 19 in the shielded optical path from the opening 40a, and the gaze is reliably focused on the visual target presented by the measurement optical system 21.

[0068] The shielding covers 40L, 40R have a first contact area 40b that can contact a part of the face of the subject P, more specifically, the vicinity of the temples and the vicinity of the cheekbones around the subject's eye E. In each of the first contact areas 40b of the shielding covers 40L, 40R, bone conduction speaker units 20L, 20R are provided in the area that contacts the temples of the outer side of the subject's eye E, and second sensor units 31L, 31R that detect contact with the face of the subject P are provided in the area that contacts the cheekbones on the lower side of the subject's eye E. The first sensor unit 30 and the second sensor unit 31L, 31R may be either a contact type sensor or a non-contact type sensor. The shielding covers 40L, 40R can be said to be a kind of cheek rest in that they contact the cheekbones of the subject P.

[0069] In the ophthalmologic apparatus 100A of the second embodiment configured as described above, the subject P places his / her forehead against the forehead support 17 so as to contact the second contact area 17b, and looks into the inside of the shielding cover 40 through the opening 40a so that the side of the face, more preferably the vicinity of the temple or the vicinity of the cheekbone, contacts the first contact area 40b of each of the shielding covers 40L, 40R. When the first sensor unit 30 and the second sensor unit 31L, 31R detect the contact of the face with the first contact area 40b and the second contact area 17b, the control unit 26 generates an instruction voice signal for acquiring information of the subject's eye E according to the examination procedure, and outputs the signal from the bone conduction speaker units 20L, 20R.

[0070] Furthermore, by providing the second sensors 31L, 31R in the first contact area 40b that comes into contact with the vicinity of the cheekbones of the subject P, the control unit 26 can more appropriately determine whether the face of the subject P is in appropriate contact with the bone conduction speaker unit 20. If the contact state of the face is inappropriate, the control unit 26 causes the bone conduction speaker unit 20 to output an audio signal instructing the subject P to correct the position or direction of the face, thereby allowing the subject P's face to be in appropriate contact with the bone conduction speaker unit 20.

[0071] Moreover, in the ophthalmologic apparatus 100A of the second embodiment, the measuring head 16 can be moved in the horizontal and vertical directions and rotated in the X and Y directions by the driving mechanism 15. Therefore, when the first contact area 40b is not in proper contact with the face of the subject P based on the detection result of the second sensor unit 31, the control unit 26 can move the measuring head 16 in the front-rear direction or rotate it to bring the first contact area 40b into proper contact with the face of the subject P.

[0072] Therefore, the ophthalmic device 100A of Example 2 can reliably transmit instructions and instructions for obtaining information about the test eye E to the subject P through the bone conduction speaker unit 20, making it possible to obtain information about the test eye E more smoothly.

[0073] (Modification of the second embodiment) 8 is a front view of the first sensor unit 30, the second sensor units 31L, 31R, and the bone conduction speaker units 20L, 20R of the ophthalmic device 100A according to the modified example of the second embodiment. As shown in FIG. 8, in the ophthalmic device 100A according to the modified example, the second sensor units 31L, 31R are arranged in the first contact area 40b below the bone conduction speaker units 20L, 20R in close proximity to each other. With this positional relationship, the second sensor units 31L, 31R can detect the contact state of the part closer to the part contacting the bone conduction speaker units 20L, 20R on the side of the face of the subject P, and the bone conduction function of the bone conduction speaker units 20L, 20R can be more appropriately exhibited.

[0074] Example 3 An ophthalmic apparatus 100B according to a third embodiment of the present disclosure will be described below with reference to Figs. 9 to 11. The ophthalmic apparatus 100B according to the third embodiment is an ophthalmic apparatus capable of acquiring ocular information of a subject's eye E one eye at a time. The ophthalmic apparatus 100B according to the third embodiment is capable of performing a distance test, a near test, a contrast test, a glare test, and the like as subjective tests. In addition, the ophthalmic apparatus 100B is an ophthalmic apparatus (autokeratometric refractometer) capable of performing objective refraction measurement, corneal shape measurement, corneal thickness measurement, intraocular pressure measurement, and the like as objective measurements, but the ophthalmic apparatus 100B is not limited to an autokeratometric refractometer.

[0075] 9, the ophthalmic device 100B according to the third embodiment includes an ophthalmic device main body 60 and an eye examination table 80. The ophthalmic device main body 60 mainly includes a main body section 61 and a face support section 70. The eye examination table 80 mainly includes a top plate 81 on which the ophthalmic device main body 60 is placed, a support section 82 that supports the top plate 81, a caster base 83 to which the support section 82 is fixed, and the like, and may also include a lifting mechanism for lifting and lowering the top plate 81, a lifting lever, a power button, a table control section, and the like.

[0076] The main body 61 includes a base 62 and a measuring head 63, and is covered with a cover member 61a. A monitor 64 that functions as an examiner's controller having a display unit and an input unit is provided on the top of the measuring head 63. Note that the ophthalmic device 100B may also include an examiner's controller separate from the main body 10 as shown in the first embodiment, in addition to the monitor 64, to allow remote operation of the ophthalmic device 100B.

[0077] The base unit 62, the measuring head 63, and the monitor unit 64 are electrically connected by wiring, and the main body unit 61 is electrically connected to the face support unit 70. Therefore, communication is possible between the base unit 62, the measuring head 63, and the monitor unit 64, and between the main body unit 61 and the face support unit 70, and power is supplied to the measuring head 63, the monitor unit 64, and the face support unit 70 from a power supply unit (not shown) provided in the base unit 62.

[0078] The measurement head 63 is supported so as to be movable in both horizontal and vertical directions (X, Y, and Z directions) relative to the base 62. The measurement head 63 houses a measurement optical system 65 (see FIG. 11) for acquiring information on the subject's eye E. The measurement optical system 65 includes multiple types of ophthalmic optical systems, such as an optical system for measuring the intraocular pressure of the subject's eye E and an optical system for refractive and keratometric measurements of the subject's eye E, and is capable of observing, photographing, and acquiring information on the anterior segment, cornea, fundus, etc. of the subject's eye E.

[0079] An XYZ drive mechanism 66 (drive unit, see FIG. 11) that drives the measuring head 63 in the horizontal and vertical directions is housed in the base unit 62. The XYZ drive mechanism 66 includes, for example, a stepping motor and a control circuit.

[0080] The monitor unit 64 is made up of a touch panel display on which an image of the subject's eye and operation buttons are displayed, and functions as a display unit and an input unit. The examiner can operate the ophthalmic apparatus 100B by operating the display surface of the touch panel display of the monitor unit 64. The monitor unit 64 is attached to one edge of the top of the measurement head 63 by a flexible arm 64a so as to be rotatable around a horizontal axis (around the X-axis or Z-axis) and a vertical axis (around the Y-axis). With this configuration, the examiner can position the display surface of the monitor unit 64 at a desired angle or direction depending on the examiner's position, posture, eye level, etc.

[0081] The monitor section 64 has a built-in control circuit unit. In terms of hardware, the control circuit unit is configured to include a microprocessor, RAM, ROM, EEPROM, flash memory, etc. The control circuit unit functions as a control section 67, an internal memory 67a, and a storage section 68 shown in Fig. 11. The control section 67 is mainly composed of a microprocessor, the internal memory 67a is composed of a RAM, etc., and the storage section 68 is composed of a ROM, EEPROM, flash memory, etc.

[0082] The control unit 67 comprehensively controls each unit of the ophthalmologic apparatus 100B. The control unit 67 is connected to and controls the measurement optical system 65, the XYZ drive mechanism 66, the monitor unit 64, the memory unit 68, a chin rest moving mechanism 75 of the face support unit 70 (described later), the first sensor unit 30, the second sensor units 31L and 31R, the third sensor unit 32, and the bone conduction speaker units 20L and 20R.

[0083] The face support part 70 is provided by being connected to the front (front surface) of the base part 62 of the main body part 61. Note that this configuration is not limited, and the face support part 70 may be configured to be separated from the main body part 61 and installed on the optometry table 80.

[0084] The face support part 70 is formed in a rectangular or elliptical frame shape in a plan view. As shown in Fig. 9 and Fig. 10, the face support part 70 mainly includes a base part 71 connected and fixed to the base part 62, a chin rest part 72 provided on the base part 71 so as to be movable up and down, a pair of pillar parts 73 (73L, 73R) provided so as to protrude from both the left and right sides of the base part 71, a forehead rest part 74 provided on the upper ends of the pair of pillar parts 73L, 73R, and a chin rest part movement mechanism 75 (see Fig. 11) that moves the chin rest part 72 in the up and down direction.

[0085] The pair of columnar parts 73L, 73R are provided at their upper and lower ends with an upper width adjustment part 73a and a lower width adjustment part 73b for expanding and reducing the widthwise interval between the columnar parts 73L, 73R. The upper width adjustment part 73a is inserted into the housing of the forehead rest part 74 so as to be stretchable or removable, and the lower width adjustment part 73b is inserted into the housing of the base part 71 so as to be stretchable or removable. The examiner or subject P can move the upper width adjustment part 73a and the lower width adjustment part 73b in the left and right directions (toward and away from the face) by grasping the pair of columnar parts 73L, 73R and moving them in the left and right directions, thereby arbitrarily adjusting the interval between the columnar parts 73L, 73R according to the width of the subject P's face. As a result, the pair of columnar parts 73L, 73R can come into contact with or move away from the sides of the subject P's face.

[0086] The pair of pillars 73L, 73R are provided with bone conduction speaker units 20L, 20R extending vertically in a long length and second sensor units 31L, 31R arranged vertically in a first contact area 73c that is near the ears of the subject P and can contact the sides of the face. The forehead rest 74 is provided with a contact-type first sensor unit 30 in a second contact area 74a with which the forehead of the subject P comes into contact. Furthermore, the chin rest 72 is provided with a third sensor unit 32 that detects contact of the chin in a third contact area 72a with which the chin comes into contact. The first sensor unit 30, the second sensor unit 31, and the third sensor unit 32 may be either a contact type sensor or a non-contact type sensor.

[0087] When obtaining information on the subject's eye E using the ophthalmic apparatus 100B according to the third embodiment, the subject P faces the ophthalmic apparatus main body 60, places his / her chin on the chin rest 72, and places his / her forehead on the forehead rest 74. Next, the examiner or the subject P grasps the columnar parts 73L, 73R and moves them forward and backward to adjust the width of the columnar parts 73L, 73R so that the bone conduction speaker parts 20L, 20R and the second sensor part 31 provided in each first contact area 73c come into contact with the sides of the face.

[0088] Then, as in the first embodiment, when the examiner or the like operates the monitor unit 64 to input the examination items, the control unit 67 that receives this input signal sets the examination procedure and controls each unit of the ophthalmic device 100B according to this procedure to perform the examination. At the same time, the control unit 67 outputs audio signals corresponding to instructions for acquiring information on the subject's eye E from the bone conduction speaker units 20L and 20R based on the audio signals stored in the storage unit 68. In the ophthalmic device 100B of the third embodiment, the control unit 67 can also change any of the contents of the instructions, the language, the frequency of the sound, and the intensity of the sound based on any of the subject's ID, the age, sex, race, and condition of the subject's eye E acquired based on the anterior eye image acquired by the measurement optical system 65, etc.

[0089] Therefore, in the ophthalmologic apparatus 100B of the third embodiment, instructions and cautions for acquiring information on the subject's eye E by the bone conduction speaker unit 20 can be reliably transmitted to the subject P, and the information on the subject's eye E can be acquired more smoothly. In addition, since the bone conduction speaker units 20L and 20R are provided on the long-extending columnar parts 73L and 73R, the face of the subject P can be more reliably brought into contact with any part of the bone conduction speaker units 20L and 20R regardless of the length or height of the face of the subject P. Furthermore, since the first sensor unit 30, the second sensor unit 31, and the third sensor unit 32 are provided on the forehead rest 74, the columnar parts 73L and 73R, and the chin rest 72, respectively, the control unit 67 can more appropriately detect the position and direction of the face of the subject P, and can instruct the subject P to appropriately bring the face into contact with the bone conduction speaker unit 20.

[0090] (Modification of the third embodiment) In the ophthalmologic apparatus 100B of the third embodiment, the columnar parts 73L, 73R of the face support part 70 have their widths changed by the upper width adjustment part 73a and the lower width adjustment part 73b, but the present invention is not limited to this configuration. As a modified example, for example, the columnar parts 73L, 73R may be configured to be rotatable in the front-rear direction (Z direction) relative to the forehead rest part 74 and the base part 71 by a hinge member or the like. With this configuration, the examiner or the like can rotate the columnar parts 73L, 73R forward to appropriately bring the bone conduction speaker parts 20L, 20R provided on the columnar parts 73L, 73R into contact with the back of the ears of the subject P or the like. Furthermore, the columnar parts 73L, 73R can be rotated backward to release the face of the subject P from the columnar parts 73L, 73R. As another modified example, the columnar portions 73L, 73R may be narrowed or bent toward the front, so that the first contact area 73c comes into contact with the face of the subject P. Also, a configuration may be adopted in which a plurality of face support portions 70 formed with various widths can be attached to the base portion 62 or the like according to the size of the face of the subject P.

[0091] The above describes the ophthalmic device of the present disclosure based on examples and modified examples. However, the specific configuration is not limited to these examples and modified examples, and design changes and additions are permitted as long as they do not deviate from the gist of the invention related to each claim in the scope of the claims.

[0092] In addition, with respect to the above description of the first to third embodiments, the following will be further disclosed. (1) an information acquisition unit for acquiring information on a subject's eye; a contact area that is in contact with at least a portion of the subject's face; a bone conduction speaker unit provided in the contact area; A control unit that controls the information acquisition unit and the bone conduction speaker unit, The control unit controls the bone conduction speaker unit to output an instruction for acquiring information about the subject's eye. An ophthalmic apparatus comprising: (2) The control unit acquires subject information on the subject, and controls the bone conduction speaker unit to change at least one of the content, language, sound frequency, and sound intensity of the instruction to be output from the bone conduction speaker unit, depending on at least one of the age, sex, race, and condition of the subject's eye acquired from the subject information, and output the instruction. 4. The ophthalmic apparatus according to claim 1, (3) a storage unit in which the subject information is stored in association with a subject ID; The control unit acquires the subject ID from an external device, and acquires the subject information from the storage unit based on the subject ID. 4. The ophthalmic apparatus according to claim 1, wherein the first and second ophthalmic devices are arranged in a first and second plane. (4) An image acquisition unit for acquiring an image of an anterior segment of the subject's eye, The control unit performs image analysis on the anterior eye image to obtain a state of the subject's eye. 4. The ophthalmic apparatus according to claim 2, wherein the first and second electrodes are arranged in a first direction. (5) providing a sensor unit that detects a contact state of the face with the contact area; The control unit changes the content of the instruction to be output from the bone conduction speaker unit based on a detection result of the sensor unit. The ophthalmologic apparatus according to any one of (1) to (4) above, (6) The contact area includes a first contact area that comes into contact with the subject's cheek or ear, and a second contact area that comes into contact with the subject's forehead, The bone conduction speaker unit is provided in the first contact area, and the sensor unit is provided in at least one of a region of the first contact area close to the bone conduction speaker unit and the second contact area. 8. The ophthalmic apparatus according to claim 5, (7) A pair of measurement heads each including the information acquisition unit, an image acquisition unit for acquiring an image of an anterior segment of the subject's eye on an optical axis of the information acquisition unit, and an optotype presentation unit for presenting an optotype to the subject's eye, the pair of measurement heads being provided corresponding to the left and right subjects' eyes; a pair of drive mechanisms for moving the measuring head in a vertical direction and a horizontal direction and rotating the measuring head about an axis parallel to the vertical direction and an axis parallel to the horizontal direction as a rotation axis; The pair of measuring heads each have the contact area. The ophthalmologic apparatus according to any one of (1) to (6) above, (8) A pair of cheek rests for supporting the cheeks of the subject are provided between the pair of measurement heads, and the bone conduction speaker unit is provided in a contact area provided on each of the pair of cheek rests. The ophthalmic apparatus according to (7) above, (9) a base portion; a measuring head disposed on the base portion so as to be movable in vertical and horizontal directions, the measuring head having the information acquiring portion; A face support portion that supports the face of the subject, The face support portion includes a forehead support portion on which the subject's forehead is placed, a chin support portion on which the chin is placed, and a pair of columnar portions connecting the forehead support portion and the chin support portion, The pair of pillars each have the contact area. The ophthalmologic apparatus according to any one of (1) to (6) above, (10) The face support unit includes an adjustment unit that adjusts a width of the pair of columnar parts by moving the pair of columnar parts in a direction to contact the face of the subject and in a direction to move away from the face. 9. The ophthalmic apparatus according to claim 8, [Explanation of symbols]

[0093] 15: Drive mechanism (drive unit) 16: Measurement head 17: Forehead rest part 17a: Forehead rest support rod 17b: second contact area 18: cheek rest 18a: Cheek rest support bar 18b: First contact area 20: Bone conduction speaker unit 21: Measurement optical system (information acquisition unit) 21b: Image sensor (image acquisition unit) 26: Control unit 29: memory unit 30: first sensor unit 31: Second sensor section 32: Third sensor section 40: Shielding cover (cheek rest) 40a: Opening 40b: first contact area 62: base portion 63: Measuring head 65: Measuring optical system (information acquisition unit) 66: XYZ drive mechanism (drive unit) 67: Control unit 68: Memory section 70: Face support section 72: chin rest portion 72a: third contact area 73: Column-shaped part 73a: Upper width adjustment part (adjustment part) 73b: Lower width adjustment part (adjustment part) 73c: First contact area 74: Forehead part 74a: Second contact area 100,100A,100B: Ophthalmic equipment E: Subject's eye P: Subject

Claims

1. An information acquisition unit that acquires information about the subject's eye; a contact area that is in contact with at least a portion of the subject's face; a bone conduction speaker unit provided in the contact area; A control unit that controls the information acquisition unit and the bone conduction speaker unit, The control unit controls the bone conduction speaker unit to output an instruction for acquiring information about the subject's eye. An ophthalmic apparatus comprising:

2. The control unit acquires subject information on the subject, and controls the bone conduction speaker unit to change at least one of the content, language, sound frequency, and sound intensity of the instruction to be output from the bone conduction speaker unit and output the instruction, depending on at least one of the age, sex, race, and condition of the subject's eye acquired from the subject information.

2. An ophthalmic apparatus according to claim 1.

3. a storage unit in which the subject information is stored in association with a subject ID, The control unit acquires the subject ID from an external device, and acquires the subject information from the storage unit based on the subject ID.

3. An ophthalmic apparatus according to claim 2.

4. an image acquisition unit for acquiring an image of an anterior segment of the subject's eye, The control unit performs image analysis on the anterior eye image to obtain a state of the subject's eye.

3. An ophthalmic apparatus according to claim 2.

5. a sensor unit that detects a contact state of the face with the contact area; The control unit changes the content of the instruction to be output from the bone conduction speaker unit based on a detection result of the sensor unit.

2. An ophthalmic apparatus according to claim 1.

6. The contact area includes a first contact area that comes into contact with the subject's cheek or the vicinity of the ear, and a second contact area that comes into contact with the subject's forehead, The bone conduction speaker unit is provided in the first contact area, and the sensor unit is provided in at least one of a region of the first contact area close to the bone conduction speaker unit and the second contact area.

6. An ophthalmic apparatus according to claim 5.

7. a pair of measurement heads provided corresponding to the left and right eyes to be examined, the measurement heads including the information acquisition unit, an image acquisition unit for acquiring an anterior eye image of the subject's eye on an optical axis of the information acquisition unit, and an optotype presentation unit for presenting an optotype to the subject's eye; a pair of drive mechanisms for moving the measuring head in a vertical direction and a horizontal direction and rotating the measuring head about an axis parallel to the vertical direction and an axis parallel to the horizontal direction as a rotation axis; The pair of measuring heads each have the contact area.

2. An ophthalmic apparatus according to claim 1,

8. A pair of cheek rests for supporting the cheeks of the subject are provided between the pair of measurement heads, and the bone conduction speaker unit is provided in a contact area provided on each of the pair of cheek rests.

8. An ophthalmic apparatus according to claim 7,

9. A base portion; a measuring head disposed on the base portion so as to be movable in vertical and horizontal directions, the measuring head having the information acquiring portion; A face support portion that supports the face of the subject, The face support portion includes a forehead support portion on which the subject's forehead is placed, a chin support portion on which the chin is placed, and a pair of columnar portions connecting the forehead support portion and the chin support portion, The pair of pillars each have the contact area.

2. An ophthalmic apparatus according to claim 1,

10. The face support unit includes an adjustment unit that adjusts a width of the pair of columnar parts by moving the pair of columnar parts in a direction to contact the face of the subject and in a direction to move away from the face.

10. An ophthalmic apparatus according to claim 9.

Images