JP2021049231A - Ophthalmologic apparatus and ophthalmologic system - Google Patents

Abstract

To provide an ophthalmologic apparatus capable of improving measurement efficiency by properly and speedily performing adjustment of the height of each part relative to a subject eye and other positional adjustment.SOLUTION: An ophthalmologic apparatus 1 comprises a body 10 having a measurement head 12, a face support part 20, an optical table 30, a hoisting and lowering chair 50, and an imaging unit 60, and a main control unit 17. The main control unit 17 calculates dimensional information of a subject P based on an image captured by the imaging unit 60 and controls the travel of the measurement head 12, the face support part 20, and the optical table 30 so as to adjust at least a position in a height direction based on the calculated dimensional information.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to ophthalmic devices and ophthalmic systems.

A face receiving device and a drive mechanism box are provided on an optical table whose height can be adjusted, and a main body with a built-in measurement unit is provided on the drive mechanism box, and the main body moves in the XYZ direction with respect to the eye to be inspected. Possible ophthalmic devices are known (see, for example, Patent Document 1). The face receiving device is provided with a chin receiving portion on which the subject's jaw is placed and whose height can be adjusted, and a forehead receiving portion on which the forehead is applied.

When measuring the characteristics of the eye to be inspected with the ophthalmic apparatus described in Patent Document 1, the optical table or chair is moved up and down according to the sitting height of the subject, and the jaw receiving portion is further moved up and down. Adjust the height of the eye to be inspected and the measuring part. After that, by moving the main body portion in the XYZ direction, the measuring unit is arranged at an appropriate position with respect to the eye to be inspected, and by driving this measuring unit, the characteristics of the eye to be inspected are measured.

International Publication No. 2003/041571

However, since the height of the eye to be examined differs depending on the height, sitting height, and posture of the subject, it is complicated and troublesome to move the optical table, jaw receiving portion, etc. up and down according to the height of the eye to be examined to adjust the height. It took a long time to start the measurement.

The present invention has been made in view of the above circumstances, and provides an ophthalmic apparatus capable of improving measurement efficiency by appropriately and quickly adjusting the position of each part with respect to the eye to be inspected. With the goal.

In order to achieve the above object, the ophthalmic apparatus of the present invention includes a main body portion having a measuring unit for acquiring information on the subject's eye, a face supporting portion for supporting the subject's face, and the main body portion. The imaging unit includes an optical table on which the subject is placed, an imaging unit that acquires an image of the subject, a measuring unit, a face support unit, and a control unit that controls the operation of the optical table. The image of the subject who is not supported by the face support portion and is located at a predetermined distance from the main body portion is acquired, and the control unit acquires the image acquired by the imaging unit. Based on the above, dimensional information including height information of a predetermined portion of the subject is calculated, and based on the calculated dimensional information, the measuring unit and the face support so as to adjust at least the position in the height direction. It is characterized by controlling the movement of at least one of the unit and the optical table.

In the ophthalmic apparatus of the present disclosure configured as described above, the imaging unit acquires an image of a subject located at a predetermined distance from the main body portion in a state where the face is not supported by the face supporting portion. Based on this image, the control unit calculates dimensional information including height information regarding the height of the subject such as height and height of the eye E to be inspected, and based on the calculated height information, at least the height. The movement of at least one of the measuring unit, the face support unit, and the optical table is controlled so as to adjust the position in the direction. Therefore, when the subject puts his / her face on the face support portion, the subject can face the ophthalmologic device in an appropriate and comfortable posture, and the measuring portion should be arranged at an appropriate position with respect to the eye to be inspected. Can be done. Therefore, the height adjustment of each part with respect to the eye to be inspected and other position adjustments can be appropriately and quickly performed to improve the measurement efficiency.

It is a perspective view which shows the appearance of the ophthalmic apparatus which concerns on 1st Embodiment. It is a side view which shows the appearance of the ophthalmic apparatus which concerns on 1st Embodiment. It is a figure which shows the block structure of the ophthalmic apparatus which concerns on 1st Embodiment. It is a flowchart which shows an example of the operation of the ophthalmic apparatus which concerns on 1st Embodiment. It is explanatory drawing which shows an example of the eye-to-be-inspected image displayed on the display surface and the operation button, and is the figure which shows the state of the eye-inspected image before the alignment completion. It is explanatory drawing which shows an example of the eye-to-be-inspection image displayed on the display surface and the operation button, and is the figure which shows the state at the time of execution of measurement after the alignment completion. It is a perspective view which shows the appearance of the ophthalmic apparatus which concerns on 2nd Embodiment. It is a figure which shows the block structure of the optometry system which concerns on 3rd Embodiment. It is a top view which shows an example of the floor plan of the medical institution where the ophthalmic apparatus of the ophthalmic system of 3rd Embodiment is installed.

(First Embodiment)
Hereinafter, the ophthalmic apparatus according to the first embodiment will be described with reference to the drawings. First, the configuration of the ophthalmic apparatus 1 according to the first embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view showing the appearance of the ophthalmic apparatus 1 according to the first embodiment, and FIG. 2 is a side view thereof. FIG. 3 is a diagram showing a block configuration of the ophthalmic apparatus 1 according to the first embodiment.

As shown in each figure throughout the present specification, the X-axis, the Y-axis, and the Z-axis are taken, and the left-right direction (the X-axis positive direction is the right direction and the negative direction is the left direction) and the front-back direction (Z-axis positive) in FIG. The description in the specification will be described with reference to the backward direction, the negative direction is the forward direction) and the vertical direction (the positive direction of the Y axis may be the upward direction, the negative direction of the Y axis may be the downward direction, and the height direction). Further, the subject P side (Z-axis negative direction) is the front of the ophthalmic apparatus 1, the side facing the subject P (Z-axis positive direction) is the back of the ophthalmic apparatus 1, and the subject P's right side (X-axis). The positive direction) is defined as the right side of the ophthalmologic device 1, and the left side of the subject P (negative direction on the X-axis) is defined as the left side of the ophthalmologic device 1.

The ophthalmic apparatus 1 of the present embodiment can perform, for example, a distance examination, a near-distance examination, a contrast examination, a glare examination, etc. as a subjective examination, and an objective refraction measurement, a corneal shape measurement, etc. as objective measurement. It can be a viable ophthalmic device (autorefractive meter).

The ophthalmic apparatus 1 to which the present invention is applied is not limited to the autorefkeratometer. In another different embodiment, the ophthalmic apparatus includes an optotype display device, a reflector head, an ophthalmoscope device including an optotype display device and a refractor head, other subjective examination devices, an objective refraction measuring device, a corneal shape measuring device, and the like. Fundus photography device, axial length measuring device, intraocular pressure measuring device, axial length measuring device, endothelial cell measuring device, slit lamp, optical coherence tomography (OCT) device, scanning laser ophthalmoscope (Scanning Laser) It may be Ophthalmoscope: SLO) or the like.

As shown in FIGS. 1 to 3, the ophthalmic apparatus 1 according to the first embodiment includes an ophthalmic apparatus main body 2 having a main body portion 10 and a face support portion 20, and an optical table on which the ophthalmic apparatus main body 2 is mounted and can be raised and lowered. 30, the operation of the elevating chair 50 in which the subject P can sit and move up and down, the imaging unit 60 that captures the image of the subject P, the ophthalmic apparatus main body 2, the optical table 30, the elevating chair 50, and the imaging unit 60. Mainly includes a main control unit 17 as a control unit for controlling the above. In addition, the ophthalmic apparatus 1 also includes an operation unit 19 for the examiner to input data to the ophthalmic apparatus 1 and give an operation instruction.

The ophthalmic apparatus 1 of the present embodiment captures an image of the subject P in a state where the face of the subject P is not supported by the face support portion 20 when acquiring the information (eye characteristics) of the eye E to be examined. Then, based on the dimensional information of the subject P calculated based on this image, the position of any of the measuring head 12, the face support portion 20, the optical table 30, and the elevating chair 50 is automatically adjusted. is there.

In the present specification, a state in which the subject P puts his / her face on the face support portion 20 and faces the ophthalmic apparatus main body 2 to measure the eye characteristics of the eye E to be inspected, or a state during measurement is referred to as a “measurement state”. , The posture of the subject P in this "measurement state" is called "measurement posture". Further, on the other hand, the state in which the subject P is in the vicinity of the ophthalmologic device main body 2 before the measurement but the face is not touched on the face support portion 20 is called a "non-measurement state", and this "non-measurement state". The posture of the subject P in the "measured state" is called "non-measured posture".

The main body portion 10 includes a base portion 11 and a measuring head 12 as a measuring portion, and is covered with a cover member 13. As shown in FIGS. 1 and 2, the top of the measuring head 12 is provided with a display unit and a monitor unit 14 as an operation unit.

The base portion 11 of the main body portion 10, the measurement head 12, and the monitor portion 14 are electrically connected. The main body 10, the face support 20, the optical table 30, and the lift chair 50 are also electrically connected. Therefore, data and operation instructions can be communicated between the base unit 11, the measurement head 12, and the monitor unit 14, and between the main body unit 10, the face support unit 20, the optical table 30, and the elevating chair 50. It becomes. Further, for example, the power supply unit provided in the base unit 11 may supply power to the measurement head 12, the monitor unit 14, the face support unit 20, the optical table 30, and the elevating chair 50. The power supply unit of the optical table 30 and the elevating chair 50 may be provided separately from the ophthalmic apparatus main body 2.

As shown in FIGS. 2 and 3, a known measurement optical system 15 for observation / photographing, a control circuit for controlling the measurement optical system 15, and the like are provided inside the measurement head 12. The measurement optical system 15 includes an optical lens, an image pickup element, and the like, and the measurement optical system 15 enables observation and imaging of the anterior segment of the subject P, the cornea, the fundus, and the like. A light source for illuminating the anterior segment of the eye and for measuring the film shape is arranged in an annular shape on the front surface of the measuring head 12.

As shown in FIGS. 2 and 3, the base portion 11 is provided with a known XYZ drive mechanism / drive circuit 16 as a moving mechanism for driving the measurement head 12 in the XYZ direction. In the XYZ drive mechanism / drive circuit 16, for example, a stepping motor is used as the drive mechanism.

The measuring head 12 is subjected to the XYZ drive mechanism / drive circuit 16 in the horizontal direction, that is, the front-back and left-right directions (X-axis direction and Z-axis direction), and the vertical direction, that is, the vertical direction (Y-axis direction), which is perpendicular to the base portion 11. Driven by. As a result, the measuring head 12 is movably supported in the horizontal direction and the vertical direction with respect to the base portion 11. The measurement head 12 can be driven by operating the touch panel type display surface 40 of the monitor unit 14. That is, the display surface 40 functions as the operation unit 19.

The monitor unit 14 is composed of a liquid crystal display, and has a touch panel type display surface 40 on which an image to be inspected and operation buttons and the like are displayed. The monitor unit 14 is covered with a cover member 14a. A control circuit unit and the like are built in the cover member 14a. The monitor unit 14 is rotatably attached to a support portion 12a fixed to one edge of the top of the measuring head 12 around a horizontal axis (X-axis or Z-axis) and a vertical axis (Y-axis). There is. With this configuration, the display surface 40 of the monitor unit 14 can be arranged at a desired angle and direction according to the position, posture, eye level, and the like of the examiner. For example, the display surface 40 can be directed toward the back surface of the main body 10 as shown in FIG. 2, or the display surface 40 can be directed toward the front surface of the main body 10 as shown in FIG. Further, the monitor unit 14 may be arranged on the right side or the left side of the main body unit 10, and the display surface 40 may be directed to the right side or the left side.

In terms of hardware, the control circuit unit includes a microprocessor, RAM, ROM, EEPROM, flash memory, and the like. The control circuit unit functions as a main control unit 17 shown in FIG. 3, an internal memory 17a, and a storage unit 18. The main control unit 17 is mainly composed of a microprocessor, the internal memory 17a is composed of a RAM or the like, and the storage unit 18 is composed of a ROM, an EEPROM, a flash memory or the like.

As shown in FIG. 3, the main control unit 17 includes a measurement optical system 15, an XYZ drive mechanism / drive circuit 16, a monitor unit 14, a storage unit 18, an operation unit 19, and an imaging unit 60 (main body camera 61, external camera 62). ), The drive mechanism 25 of the face support unit 20, the table control unit 33 of the optical table 30, the chair control unit 53 of the elevating chair 50, and the like are connected. The main control unit 17 develops a program stored in the storage unit 18 or the internal memory 17a on, for example, a RAM, and controls each unit of the ophthalmic apparatus 1 in an appropriate manner in response to an operation input signal from the operation unit 19. ..

Further, the main control unit 17 analyzes the image of the subject P taken by the imaging unit 60, and determines the subject P based on the preset distance between the subject P and the imaging unit 60. Calculate the height information as the dimensional information of the part. As the height information, for example, the height and sitting height of the subject P, the height AL from the chin C to the eye E (hereinafter, may be simply referred to as “height AL”), and the subject P move up and down. The height BL from the chin (seat surface 51) to the eye E to be inspected when seated on the chair 50 (hereinafter, may be simply referred to as “height BL”) and the like can be mentioned. Further, in the present embodiment, the main control unit 17 also calculates dimensional information other than the height, such as the interpupillary distance PD used for adjusting the position of the measurement head 12 in the horizontal direction by image analysis.

The main control unit 17 controls the XYZ drive mechanism / drive circuit 16, the drive mechanism 25, the table control unit 33, the chair control unit 53, etc. based on the calculated height information, and the measurement head 12, the face support unit 20, and the like. The optical table 30 and the elevating chair 50 are moved in the vertical direction to adjust their positions in the height direction. Further, based on the calculated interpupillary distance PD, the XYZ drive mechanism / drive circuit 16 is controlled, and the measurement head 12 is moved in the horizontal direction to adjust the position in the horizontal direction. For example, the measuring head 12 is moved to a position facing either the left or right eye E to be inspected.

If at least the height of the eye E to be inspected from the reference position (for example, the height from the floor surface F to the center of the eyeball of the eye E to be inspected) is known by image analysis, the height and jaw of the inspector P are determined based on statistics. Dimensional information such as the height AL from C to the eye E, the height BL from the buttocks D to the eye E, and the interpupillary distance PD can be calculated (estimated). These statistical data (for example, the average value of height, height AL, height BL, interpupillary distance PD, etc. corresponding to the height of the eye E to be inspected is a standard value, etc.) are stored in advance in the storage unit 18. The main control unit 17 calculates height information and other dimensional information with reference to the statistical data of the storage unit 18.

The statistical data is not limited to these. For example, if the height of the subject P can be calculated by image analysis of the whole body image, the height of the eye E to be examined with respect to the height can be used as the statistical data. The average value of height AL, height BL, interpupillary distance PD, etc. is stored. Further, the AI may be mounted on the ophthalmic apparatus 1 and the dimensional information may be calculated by the learning function of the AI.

It is desirable that statistical data can be registered and changed (updated) by the provider or user at the time of factory shipment, delivery, use, etc. For example, if statistical data such as an average value of the race, age, etc. can be set according to the race, etc. of the country in which the ophthalmic apparatus 1 is provided, and further according to the age, the measurement head 12 for the eye E to be inspected. , Optical table 30, lift chair 50, height adjustment (alignment) can be performed more appropriately.

The main control unit 17 displays various images for operation and confirmation on the display surface 40 of the monitor unit 14. An example of the screen displayed on the display surface 40 will be described with reference to FIGS. 5 and 6, but the screen displayed on the display surface 40 is not limited to this example. As shown in FIGS. 5 and 6, the rectangular display surface 40 has a display area 40a for an eye image to be inspected, an operation button display area 40b to 40d, a first subject image display area 40g1, and a second subject. An image display area of 40 g2 is provided. In the display area 40a such as the image to be inspected, a rectangular target area mark 40e and a minimum pupil diameter determination mark 40f are displayed in the center of the screen. The minimum pupil diameter determination mark 40f is used to stop the measurement when the pupil diameter is equal to or less than the minimum pupil diameter determination mark 40f. In the first subject image display area 40g1, the facial image of the subject P taken by the main body camera 61 is displayed. In the second subject image display area 40g2, a full-body image of the subject P taken by the external camera 62 is displayed. Further, dimensional information (height AL, height BL, interpupillary distance PD) calculated based on the facial image and the whole body image is displayed in the first and second subject image display areas 40g1 and 40g2. ..

The operation button display areas 40b, 40c, and 40d are provided on both the left and right side portions and the lower side portion of the display area 40a for the image to be inspected, etc., toward the display surface 40, respectively. In the operation button display area 40b on the left side, an ID button B1 for inputting a patient's ID, an R button B2 for selecting the right eye, and a jaw receiving portion 22 provided on the face support portion 20 are moved up and down. Jaw support up / down movement button B3, reset button B4 for resetting the settings of the entire ophthalmic apparatus 1, measurement mode button for switching measurement modes such as reflex (eye refractive power), kerato (corneal shape), reflex / kerato, etc. B5 is arranged. Further, in the vicinity of the jaw support vertical movement button B3, the mode is switched to a mode (hereinafter referred to as "automatic adjustment mode") for automatically adjusting the positions of the measurement head 12, the jaw support portion 22, the optical table 30, and the lifting chair 50. The automatic adjustment button B12 for the purpose is arranged.

In the present embodiment, the automation of the position adjustment is set in the ophthalmic apparatus 1 by the automatic adjustment button B12, but the present invention is not limited to this, and for example, the configuration set on the setup screen and the main body 10 are separately provided. It can also be configured to be set by physical operation switches or buttons. Further, in the case of remote control or unmanned automation, it is not necessary to provide these buttons, and for example, the automatic adjustment mode can be set by turning on the power button.

In the operation button display area 40c on the right side, a setup button B6 for displaying the setup screen, an L button B7 for selecting the left eye, and a measurement head front / rear button (Z) for moving the measurement head 12 in the front-back direction. Direction button) B8, start button B9 for starting measurement in manual mode, and manual / auto switching button B10 are arranged.

In the operation button display area 40d on the lower side, various function buttons B11 such as a cataract button used when measuring an eye to be inspected such as a cataract, a printout button of a measurement result, and a measurement value clear button are arranged.

In the display area 40a of the image to be inspected or the like, in addition to the image of the anterior segment of the eye under observation Gf, characters, symbols, symbols and the like related to the measurement result and other examinations, and images such as figures are appropriately displayed. In FIG. 6, the anterior segment image Gf of the eye E to be inspected and the measurement results S, C, and A are displayed. In FIGS. 5 and 6, Gf'is an iris image, Gf'is a pupil image, P1 is a corneal bright spot image, and P2 is an alignment index image.

For example, in the observation mode of the anterior segment image Gf, as shown in FIG. 5, the examiner touches the vicinity of the pupil of the anterior segment image Gf in the display area 40a such as the eye image to be inspected with a finger or the like. The main control unit 17 receives the operation input signal by this touch operation and moves the measurement head 12 up / down / left / right so that the image portion corresponding to the touch portion tp is located at the center G0 of the screen. As a result, the pupil image Gf "of the eye image to be inspected is controlled to be located at the center of the screen, and alignment is performed.

At this time, the main control unit 17 calculates, for example, the distance L on the screen from the screen center G0 to the touch point tp, and drives and controls the drive unit of the XYZ drive mechanism / drive circuit 16 based on this distance L. .. By this drive control, the measurement head 12 is moved up, down, left and right (Y-axis direction and X-axis direction) with respect to the eye to be inspected.

Further, when the pupil center PDO is located near the target area mark 40e and the corneal bright spot image P1 is detected, the main control unit 17 sets the distance between the detection position of the corneal bright spot image P1 and the screen center G0. Based on this, the drive unit of the XYZ drive mechanism / drive circuit 16 is driven and controlled to drive the measurement head 12 in the up / down / left / right directions (Y-axis direction and X-axis direction), and the corneal bright spot image P1 is focused. In addition, the measuring head 12 is driven in the front-rear direction (Z-axis direction). Then, when the corneal bright spot image P1 enters the target area mark 40e and the output value of the corneal bright spot image P1 exceeds a predetermined value, the measurement is automatically performed by the control of the measurement optical system 15 by the main control unit 17. Will be executed.

As described above, the subject P face image and dimensional information captured by the main body camera 61 are displayed in the first subject image display area 40g1, and photographed by the external camera 62 in the second subject image display area 40g2. The whole body image and dimensional information of the subject P are displayed. Therefore, the examiner can operate while checking the non-measurement posture and the measurement posture of the subject P on the display surface 40, and can concentrate on the operation without having to visually recognize both the subject P and the display surface 40. .. Furthermore, the examiner can operate the display surface 40 while checking the non-measurement posture and the measurement posture of the subject P at the time of remote operation from a separate room or a remote place.

As described above, the operation unit 19 includes the touch panel of the monitor unit 14, receives operation inputs to the operation buttons, keyboard, and the like displayed on the display surface 40, and outputs the operation input signals to the main control unit 17. Further, the operation unit 19 also includes a power button of the main body 10, a power button 34 and an elevating lever 35 of the optical table 30 described later, a power button 54 of the elevating chair 50, an elevating lever 55, and the like, and receives operation inputs for these. This operation input signal is output to the main control unit 17 and the table control unit 33. When the ophthalmology device 1 is provided with a control lever and an operation button, these control levers and the like are also included in the operation unit 19.

The face support portion 20 is provided so as to be connected to the front surface (front surface) of the base portion 11 of the main body portion 10. The face support portion 20 is not limited to the configuration connected to the main body portion 10, and the face support portion 20 may be separated from the main body portion 10 and installed on the optical table 30.

The face support portion 20 includes a base portion 21 connected and fixed to the base portion 11, a chin receiving portion 22 provided on the base portion 21 so as to be vertically movable, and a pair of support columns 23 provided on both left and right sides of the base portion 21. A forehead pad 24 provided at the upper end of the pair of columns 23, a drive mechanism 25 as a face support moving mechanism for moving the chin receiving portion 22 in the vertical direction, and the like are mainly provided. Further, in order to enable adjustment of the position in the front-rear direction and the left-right direction, the face support portion 20 may be provided so as to be movable in the front-rear direction and the left-right direction by the drive mechanism 25.

The subject P faces the ophthalmic apparatus main body 2 while sitting on a lifting chair 50 or the like placed in front (front) of the ophthalmic apparatus main body 2, for example, places the chin on the chin receiving portion 22, and puts the chin on the forehead rest portion 24. The eye characteristics are measured with the forehead H abutted against the chair. In the case of a short subject P such as a child, the measurement may be performed by touching the face support portion 20 while standing without sitting on the elevating chair 50. In the case of the subject P who is in a wheelchair, the measurement may be performed by putting his face on the face support portion 20 while he is in a wheelchair.

The jaw receiving portion 22 is a member on which the jaw of the subject P is placed. In the present embodiment, the chin receiving portion 22 is provided so as to be movable up and down with respect to the base portion 21, so that the chin receiving portion 22 can be moved up and down with respect to the main body portion 10. The entire support portion 20 may be configured to be vertically movable with respect to the main body portion 10.

The drive mechanism 25 is configured by a known drive mechanism, and is driven by the control of the control unit to move the jaw receiving portion 22 in a predetermined movement direction in the upward or downward direction with a predetermined movement amount (movement distance). Move according to the moving speed of. In the present specification, modes related to movement, numerical values, and other conditions such as movement direction, movement amount, movement speed, etc. are defined as "movement information".

The forehead pad 24 is a member to which the forehead H of the subject P is abutted. In the present embodiment, the forehead rest portion 24 is fixed to the pair of columns 23, but as another different embodiment, the forehead rest portion 24 may be adjustable in position in the front-rear direction. By configuring this adjustment by an appropriate drive mechanism (face support portion moving mechanism), it is possible to perform adjustment by automation and operation from the operation unit 19. Further, the configuration may be manually performed.

Further, the face support portion 20 stably supports the face of the subject P so that the face (head) of the subject P does not move unexpectedly during the measurement of the eye characteristics of the eye E. Any configuration may be used as long as it can be used. In another different embodiment, for example, the face support portion 20 may have only one of the chin receiving portion 22 and the forehead pad portion 24. When only the forehead rest portion 24 is provided, the forehead rest portion 24 (or the entire face support portion 20) can be made movable in the vertical direction or the like by a predetermined drive mechanism.

The drive mechanism 25 is controlled by the main control unit 17. Specifically, the main control unit 17 calculates the movement information of the jaw receiving unit 22 based on the height information of the subject P calculated based on the image taken by the imaging unit 60, and this movement information. The drive mechanism 25 is controlled according to the above, and the jaw receiving portion 22 is moved. Further, the main control unit 17 controls the drive mechanism 25 by receiving the operation input of the jaw receiving vertical movement button B3, and moves the jaw receiving unit 22 up and down.

In the present embodiment, the main control unit 17 functions as a face support unit control unit, but the present invention is not limited to this, and a face support unit control unit may be provided separately from the main control unit 17. Good. In this case, the face support unit control unit drives and controls the drive mechanism 25 to move the jaw receiving unit 22 up and down in response to the instruction signal from the main control unit 17.

The optical table 30 includes a top plate 31 on which the ophthalmic apparatus 1 is placed, a table elevating mechanism 32 as a table moving mechanism for raising and lowering the top plate 31, and a table control unit 33 for controlling the drive of the table elevating mechanism 32. , A power button 34, an elevating lever 35 for manually operating the table elevating mechanism 32, and a caster base 36 to which the table elevating mechanism 32 is attached. In the present embodiment, since the ophthalmic apparatus 1 performs measurement while the subject P is sitting on the lifting chair 50 (sitting position), an optical table 30 having a height corresponding to the measurement in the sitting position is used. There is. On the other hand, the ophthalmic apparatus 1 for measuring while the subject P is standing (standing) can also be used. In this case, the elevating chair 50 does not need to be provided, and the optical table 30 is used having a height corresponding to the measurement in a standing position.

The table elevating mechanism 32 raises and lowers the top plate 31 under the control of the table control unit 33. Thereby, the height of the top plate 31 can be adjusted according to the height and the like of the subject P. As described above, the table elevating mechanism 32 actually raises and lowers the top plate 31, but in the present specification, it may be referred to as "the optical table 30 moves up and down" in the same meaning as raising and lowering the top plate 31.

The table elevating mechanism 32 includes an elevating rod 32a that supports the top plate 31, a support rod 32b that supports the elevating rod 32a so as to be vertically movable, and a drive unit 32c that moves the elevating rod 32a up and down. The movement information (movement direction, movement distance, movement speed, etc.) of the elevating rod 32a is detected by a rotary encoder or the like and output to the table control unit 33.

The drive unit 32c is, for example, an electric type composed of an electric actuator or the like, but is not limited to this configuration. As the drive unit 32c, a hydraulic type, a pneumatic type, a screw type, a link type, or other known elevating mechanism can be used.

The caster base 36 supports the entire optical table 30. The caster base 36 is provided with casters 36a with a locking mechanism. Therefore, the examiner or the like can easily move the ophthalmic apparatus 1 to a desired installation location, and by locking the casters 36a at the installation location, the ophthalmic apparatus 1 can be stably installed so as not to move unexpectedly.

The table control unit 33 includes a microprocessor, an internal memory 33a including a RAM, a ROM, a flash memory, and the like, and the like. The table control unit 33 is electrically connected to the table elevating mechanism 32, the power button 34, and the elevating lever 35. The power button 34 sends an ON / OFF operation input signal to the table control unit 33. The elevating lever 35 can be freely pushed up and down, and when these operations are performed, an ascending or descending operation input signal is output to the table control unit 33.

The table control unit 33 receives an ascending or descending operation input signal from the elevating lever 35, controls and drives the driving unit 32c of the table elevating mechanism 32, and moves the top plate 31 (optical table 30) in the vertical direction. Let me. Further, in the case of the automatic adjustment mode, the table control unit 33 controls the drive unit 32c based on the input signal from the main control unit 17 to move the top plate 31 in the vertical direction.

The elevating chair 50 includes a seat surface 51 on which the subject P sits, a chair elevating mechanism 52 as a chair moving mechanism for elevating and elevating the seat surface 51, and a chair control unit 53 for controlling the drive of the chair elevating mechanism 52. It is configured to include a power button 54, an elevating lever 55 for manually operating the chair elevating mechanism 52, and a leg portion 56 having casters 56a.

The chair elevating mechanism 52 raises and lowers the seat surface 51 under the control of the chair control unit 53. As a result, the height of the seating surface 51 can be adjusted according to the height, sitting height, and the like of the subject P. In this case as well, there is a case that "the lift chair 50 moves up and down" in the same meaning as raising and lowering the seat surface 51.

The chair elevating mechanism 52 includes an elevating rod 52a that supports the seat surface 51, a support rod 52b that supports the elevating rod 52a so as to be vertically movable, and a drive unit 52c that moves the elevating rod 52a up and down. The movement information (movement direction, movement distance, movement speed, etc.) of the elevating rod 52a is detected by a rotary encoder or the like and output to the chair control unit 53.

In this case as well, the drive unit 52c is of an electric type including, for example, an electric actuator, but is not limited to this configuration. As the drive unit 52c, a hydraulic type, a pneumatic type, a screw type, a link type, or another known elevating mechanism can be used.

The chair control unit 53 includes a microprocessor, an internal memory 53a including a RAM, a ROM, a flash memory, and the like, and the like. The chair control unit 53 is electrically connected to the chair elevating mechanism 52, the power button 5, and the elevating lever 55. The power button 54 sends an ON / OFF operation input signal to the chair control unit 53. The elevating lever 55 can be freely pushed up and down, and when these operations are performed, an ascending or descending operation input signal is output to the chair control unit 53.

The chair control unit 53 receives an ascending or descending operation input signal from the elevating lever 55, controls and drives the driving unit 52c of the chair elevating mechanism 52, and moves the seat surface 51 (elevating chair 50) in the vertical direction. Let me. Further, in the case of the automatic adjustment mode, the chair control unit 53 controls and drives the drive unit 52c based on the input signal from the main control unit 17, and moves the seat surface 51 in the vertical direction.

Further, the elevating chair 50 is not limited to the stool type chair as shown in FIGS. 1 and 2. Other different embodiments may be, for example, chairs with backrests and armrests, reclining seats and the like.

Further, in the present embodiment, the automatic adjustment button B12 is provided on the main body 10, but it may be provided on the optical table 30 or the elevating chair 50, or may be provided on each of them. Further, in the present embodiment, the power buttons 34, 54 and the elevating levers 35, 55 are provided on the optical table 30 and the elevating chair 50, but these may be provided on the main body 10 for easy operation. However, it may be provided on both sides.

In the present embodiment, the ophthalmic apparatus 1 is operated by operating the touch panel type display unit or operating various buttons or levers (34, 35, 54, 55) of the optical table 30, but the present embodiment is limited to this configuration. There is no. For example, a controller, a PC, or the like capable of communicating with the ophthalmic apparatus 1 may be provided as an operation unit 19, and the ophthalmic apparatus 1 may be operated by these.

The imaging unit 60 captures at least an image of the subject P in the non-measured state at a position (imaging position G) at a predetermined distance from the main body 10 and sends an image signal to the main control unit 17. .. At this time, it is desirable to take a picture while the subject P is standing at the imaging position G. For example, in the case of the subject P who uses a wheelchair, the photograph may be taken while sitting in a wheelchair. Whether the state in which the subject P is standing (standing position) is in the sitting state (sitting position) can be easily determined by image analysis processing, and by using it in the calculation of the movement information in the main control unit 17, the subject P can be determined. It is possible to calculate and adjust the position of dimensional information with higher reliability corresponding to the posture.

As described above, based on the image taken by the imaging unit 60, the main control unit 17 determines the height AL from the chin C of the subject P to the eye E to be examined and the eye E from the buttocks D (seat surface 51). The height BL, the interpupillary distance PD, etc. are calculated. Therefore, if the imaging unit 60 can capture at least an image of the subject P's eye E, the subject P's position is based on the position of the subject E in the image and the distance between the imaging position G and the imaging unit 60. Height can be estimated. Heights AL and BL can be calculated based on this estimated height and statistical data.

Further, it is more desirable that the imaging unit 60 acquires a facial image including the eye E and the jaw C of the subject P, and the height AL from the jaw C to the eye E, the interpupillary distance PD, and the like can be obtained with higher accuracy. Can be calculated. Furthermore, it is more desirable to acquire a whole body image of the subject P by the imaging unit 60, and the height of the subject P can be acquired more accurately, and as a result, from the buttocks D (seat surface 51) to the eye E to be examined. Height BL can be calculated with higher accuracy.

In the present embodiment, in order to capture the facial image and the entire image of the subject P, as shown in FIGS. 1 and 2, the imaging unit 60 captures the main body camera 61 that captures the facial image and the whole body image. It is equipped with an external camera 62.

The main body camera 61 is installed on the upper surface of the main body portion 10. As a result, the main body camera 61 can surely acquire a facial image including the left and right eyes E to be inspected and the chin C. Further, the photographing position G of the subject P by the main body camera 61 is set to a position 40 cm from the jaw receiving portion 22. This information is input to the main body portion 10 in advance as distance information (40 cm or 40 cm + the distance from the jaw receiving portion 22 to the main body camera 61) and is stored in the storage unit 18.

Further, the position of the main body camera 61 with respect to the subject P (shooting position G) changes with the vertical movement of the optical table 30 and the movement of the measurement head 12 in the XYZ direction. The height information from the floor surface F of the main body camera 61 includes the initial position of the optical table 30 from the floor surface F, the moving distance in the height direction (Y-axis direction) from this initial position, and the sky of the measuring head 12. It can be calculated based on the initial position from the plate 31 and the moving distance in the height direction (Y-axis direction) from this initial position. Further, the movement information of the main body camera 61 in the left-right and front-back directions (X-axis direction and Z-axis direction) is the moving distance in the XZ direction from the initial position of the measurement head 12 with respect to the chin receiving portion 22 (face support portion 20). Can be calculated based on. As a result, the position information (distance, direction, etc. in the XYZ direction) regarding the positional relationship between the shooting position G and the main body camera 61 can be known. This position information is also stored in the storage unit 18, and is sequentially updated as the optical table 30 and the measurement head 12 move. The distance information and the position information of the main body camera 61 are used when the main control unit 17 calculates the height AL of the subject P, the interpupillary distance PD, and the like based on the facial image from the main body camera 61.

The main body camera 61 is installed facing forward so that when the subject P stands at the imaging position G, a facial image including the eye E and the jaw C can be captured, and the shooting conditions such as magnification and angle of view can be set. For example, if a wide-angle lens is used for the main body camera 61, the face image of the subject P can be reliably captured even if the height of the subject P varies.

The external camera 62 is located at a predetermined distance from the main body 10 and is installed on the side wall surface W of the main body 10. As a result, the whole body image including the eye E, the chin C, and the buttocks D of the subject P at the imaging position G can be photographed from the side, and the dimensional information can be calculated more accurately. The position information of the external camera 62 is input to the main body 10 when the installation is completed, and is stored in the storage 18. Examples of the position information include the distance and direction of the external camera 62 and the main body 10 (or the shooting position G) in the XYZ axis direction. The position information of the external camera 62 is used when the main control unit 17 calculates height information such as height and height BL of the subject P based on the whole body image from the external camera 62.

The shooting by the main body camera 61 and the external camera 62 may be automatically performed by detecting that the subject P is at the shooting position G by the motion sensor or the face recognition function, or may be operated by the examiner. It may be performed by operating the unit 19 or the like to give a shooting instruction to the main camera 61 and the external camera 62.

The main body camera 61 and the external camera 62 are not particularly limited, and examples thereof include known cameras such as a digital still camera, a digital video camera, and a CCD. By using a small camera such as a pinhole camera or a micro CCD camera as the main body camera 61, it is difficult for the subject P to be aware of the existence of the main body camera 61, and smoother shooting becomes possible.

Further, one main camera 61 and one external camera 62 are installed in the present embodiment. However, the present invention is not limited to this, and two or more units may be provided for each. Further, if a stereo camera is used for these, the face image and the whole body image of the subject P can be taken three-dimensionally, and the position information of the main body camera 61 and the external camera 62 needs to be input to the main body portion 10 in advance. Regardless of the position of the subject P, the positional relationship (distance) between the subject P and the main body 10 can be accurately acquired, and the dimensional information of the subject P can be obtained with higher accuracy. Can be calculated.

An example of the operation of the ophthalmic apparatus 1 according to the first embodiment having the above-described configuration will be described with reference to the flowchart of FIG. The operation of the flowchart shown in FIG. 4 is started when the power of the ophthalmic apparatus 1 is turned on and the automatic adjustment button B12 is operated by the examiner. Further, in the following description, it is assumed that the examiner assists the examinee P to measure the eye E to be inspected beside the examinee P.

First, when measuring the characteristics of the eye E to be inspected by the subject P, the examiner turns on the power of the ophthalmic apparatus 1 (the main body of the ophthalmic apparatus 2, the optical table 30, and the elevating chair 50). As a result, the ophthalmic apparatus 1 is activated, and the main control unit 17 executes the program stored in the internal memory 17a to perform the initial setting of each unit.

At the time of this initial setting, the main control unit 17 controls and drives the drive unit 52c of the XYZ drive mechanism / drive circuit 16, the drive mechanism 25, the table elevating mechanism 32, and the chair elevating mechanism 52, and drives the measuring head 12 and the face. A reset operation for moving the support portion 20, the optical table 30, and the elevating chair 50 to the initial positions may be executed. Alternatively, such a reset operation may be performed by accepting the operation of the reset button B4 on the display surface 40.

Next, the examiner urges the subject P to stand at the imaging position G, or guides the subject P to the imaging position G. As shown by the solid line in FIG. 1, when the subject P stands at the shooting position G, the main body camera 61 captures the facial image of the subject P by the examiner inputting a shooting instruction on the operation unit 19 or automatically. (Step S1), the external camera 62 captures a full-body image of the subject P (step S2). The images taken by the main camera 61 and the external camera 62 are sent to the main control unit 17 as image signals.

In step S3, the main control unit 17 that has received the image signal analyzes the facial image, and based on the distance information of the main body camera 61 and the current position information, from the jaw C of the subject P to the eye E to be inspected. The height AL and the interpupillary distance PD are calculated. The main control unit 17 analyzes the whole body image and calculates the height BL from the buttock D to the eye E of the subject P based on the position information of the external camera 62. At this time, the height of the eye E to be inspected may be calculated by image analysis of the facial image, and the height BL calculated from the whole body image may be corrected, so that the height BL can be calculated more accurately.

Next, in step S4, the main control unit 17 superimposes the numerical values of the height AL and the interpupillary distance PD on the facial image taken by the main body camera 61 and displays them in the first subject image display area 40g1. The numerical values of height AH and height BH are superimposed on the whole body image taken by the external camera 62 and displayed in the second subject image display area 40g2. In the present embodiment, the facial image and the whole body image are displayed in a non-measured state. On the other hand, as another different embodiment, the dimensional information may be superimposed and displayed on the images taken in real time by the main camera 61 and the external camera 62. As a result, each image in the non-measured state in which the dimensional information is superimposed and an image in the measured state in which the dimensional information is superimposed are displayed according to the shooting timing. Alternatively, when it is not necessary to display the images in the first and second subject image display areas 40g1 and 40g2, these images are hidden by operating a predetermined operation button (or by initial setting or the like). You can also do it.

Next, in step S5, when the subject P sits on the elevating chair 50, the subject P measures the measurement optical system 15 of the measurement head 12 in an appropriate and comfortable posture without curling his back. The main control unit 17 calculates a suitable height (height from the floor surface F) of the optical table 30 based on the height BL so as to be located within the allowable range. Further, in the case of a short child or the like, the measurement may be performed in a standing state. In this case, the suitable height of the optical table 30 in a standing state is calculated. Further, when the height is excessively short, the measurement may be performed while standing on a stepping stone or the like. In this case, the suitable height of the optical table 30 is calculated in consideration of the height of the stepping stone. When using a wheelchair, the suitable height of the optical table 30 while sitting in a wheelchair is calculated.

Based on the calculated height, the current height of the optical table 30, and the like, the main control unit 17 calculates movement information such as the movement direction, the movement distance, and the movement speed of the optical table 30. At this time, if the height of the subject P is excessively high or too short, and the height adjustment is not sufficient even if the optical table 30 is lowered or raised to the maximum, the lifting chair 50 is used. The movement information of the elevating chair 50 may be calculated in order to adjust the height. The main control unit 17 sends the calculated movement information to the table control unit 33 and the chair control unit 44.

In step S6, the table control unit 33 controls and drives the drive unit 32c of the table elevating mechanism 32 according to the movement information, and raises and lowers the top plate 31 to adjust the height of the optical table 30. When adjusting the height of the lift chair 50, the chair control unit 53 controls and drives the drive unit 52c of the chair lift mechanism 52 according to the movement information to raise and lower the seat surface 51.

In the next step S7, the main control unit 17 calculates movement information such as the movement direction and movement distance of the jaw receiving portion 22 based on the height AL and the current height of the jaw receiving portion 22. Then, in step S8, the main control unit 17 controls and drives the drive mechanism 25 of the face support unit 20 based on the movement information, and moves the chin receiving unit 22 in the vertical direction to adjust the height. ..

Next, the process proceeds to step S9 in order to adjust the position of the measurement head 12 in the left-right direction (X-axis direction). Here, first, the measurement head 12 is moved to a position facing the right eye to be inspected E. Therefore, in step S9, the main control unit 17 calculates the position of the right eye to be inspected E in the X-axis direction with respect to the main body 10 based on the interpupillary distance PD of the left and right eye to be inspected E, and uses this position information. Based on this, movement information such as the movement direction and the movement amount of the measurement head 12 in the X-axis direction is calculated.

In step S10, the main control unit 17 controls the XYZ drive mechanism / drive circuit 16 to move the measurement head 12 in the X-axis direction and adjust the position.

As described above, since the positions of the optical table 30, the chin receiving portion 22, and the measuring head 12 are adjusted, the subject P sits on the elevating chair 50, the forehead H is applied to the forehead rest portion 24, and the chin C is placed on the chin. When placed on the receiving portion 22, the subject P can confront the ophthalmic apparatus 1 in an appropriate and comfortable measurement posture without curling his back or unnaturally stretching or contracting his neck.

When the subject P confronts the ophthalmic apparatus 1 in a measurable state (measurement state) in this way, the examiner operates the display surface 40 of the monitor unit 14 in order to perform alignment. As shown in FIG. 5, various operation buttons B1 to B17 and an anterior segment image Gf of the eye to be inspected E acquired by the measurement optical system 15 are displayed on the display surface 40. On the display surface 40, as described above, the examiner touches the vicinity of the pupil to input the alignment instruction.

If the eye E to be inspected is not located within the allowable measurement range of the measurement optical system 15, the anterior segment image Gf may not be displayed on the display surface 40, but in this case as well, the touch of the display surface 40 Instruct alignment by operation or the like.

By these operations, the alignment operation input signal is output from the touch panel. In step S11, the main control unit 17 receives this operation input signal, controls the XYZ drive mechanism / drive circuit 16 based on the anterior segment image Gf, and moves the measurement head 12 in the XYZ axis direction. Calculate the information.

At this time, if the amount of movement of the measurement head 12 in the vertical direction (Y-axis direction) exceeds the limit (or threshold value) (the determination in step S12 is YES), the measurement head with respect to the eye E to be inspected can be measured only by moving the measurement head 12. 12 height adjustment may not be possible. In this case, the process proceeds to step S13 in order to make corrections by adjusting the heights of the optical table 30 (elevating chair 50) and the face support portion 20.

On the other hand, if NO is determined in step S12, it is assumed that the alignment between the eye to be inspected E and the measurement optical system 15 is completed, and steps S13 and S14 are skipped and the process proceeds to step S15-6.

In step S13, the main control unit 17 calculates movement information data such as the movement direction, movement distance, and movement speed of the optical table 30 based on the distance between the eye to be inspected E and the measurement optical system 15, and the table control unit 17 Send to 33. In this case as well, if the movement of the optical table 30 is not sufficient for adjustment, the movement information of the lifting chair 50 may be calculated in order to adjust the height of the lifting chair 50 together with the optical table 30.

Further, the movement information of the jaw receiving portion 22 is determined based on the movement information of the optical table 30 (and / or the elevating chair 50). Specifically, when the optical table 30 is raised, the jaw receiving portion 22 is lowered by the raised distance, and when the optical table 30 is lowered, the jaw receiving portion 22 is raised by the lowered distance. It is preferable that the ascending / descending speeds of the optical table 30 and the jaw receiving portion 22 are constant from the viewpoint of reducing the discomfort of the subject P.

Then, in step S14, the table control unit 33 controls the drive unit 32c of the table elevating mechanism 32 (and / or the chair control unit 53 controls the drive unit 52c of the chair elevating mechanism 52) according to the movement information. The plate 31 (and / or the seat surface 51) is raised and lowered. At the same time as this raising and lowering, the main control unit 17 controls the drive mechanism 25 according to the movement information, and moves the jaw receiving portion 22 in the vertical direction.

By this process, the measuring head 12 moves up and down together with the optical table 30 and the like, and the jaw receiving portion 22 moves in the opposite direction to the face of the subject P. Position does not change. Therefore, the height of the measurement head 12 can be adjusted according to the eye E of the subject P while being stably supported by the jaw receiving portion 22 without causing discomfort to the subject P.

When the height is properly adjusted by raising and lowering the optical table 30 and moving the jaw receiving portion 22, the process proceeds to step S15. In step S15, the main control unit 17 follows the movement information calculated in step S11, or when the position is adjusted in steps S13 and S14, according to the movement information calculated again based on the anterior segment image Gf, the XYZ drive mechanism / drive circuit. 16 is driven and controlled to perform alignment.

When the alignment is completed, the process proceeds to step S16 to measure the eye characteristics of the eye E to be inspected. For example, when the corneal bright spot image P1 enters the target area mark 40e and the output value of the corneal bright spot image P1 exceeds a predetermined value by alignment, or when the operation input signal of the start button B9 is received, the main control is performed. The unit 17 controls the measurement optical system 15 to perform the measurement of the eye characteristics of the eye E to be inspected. The main control unit 17 displays the measurement result on the display surface 40 (see FIG. 6), and when there is an operation instruction of the printout button, prints the measurement result and further the dimensional information. Therefore, the examiner or the like can not only confirm the measurement result, but also in a state where the dimensional information is appropriately calculated in the correct measurement posture based on the dimensional information displayed in the first and second subject image display areas 40g1 and 40g2. You can check whether the measurement was possible.

When continuously measuring the eye characteristics of the left eye to be inspected E, the process returns to step S9 and the processes of steps S9 to S16 are repeated.

When the measurement of the eye characteristics of the left and right eyes E to be inspected is completed, the process proceeds to step S17. In this step S17, the main control unit 17 performs dimensional information including the measurement result and the height information of the subject P (for example, height, height AL from the jaw C to the eye E, and the buttock D to the eye E). Height BL, interpupillary distance PD, etc.) are stored in the storage unit 18 in association with the ID. Further, the facial image or the whole body image taken by the imaging unit 60 may be stored in the storage unit 18 in association with the ID. When it is not necessary to store the dimensional information, or when the ophthalmic device 1 is installed in a commercial facility or a special venue, an unspecified number of subjects P measure the eye characteristics, and the measurement results and the dimensional information are personalized. When discarding as information, the program may be controlled so as to skip step S17 and end the program.

As described above, the ophthalmic apparatus 1 according to the first embodiment includes a main body portion 10 having a measurement head 12, a face support portion 20, an optical table 30, an imaging unit 60, and a main control unit 17. Be prepared. The imaging unit 60 acquires an image of the subject P at the photographing position G, which is in a state where the face is not supported by the face supporting unit 20 and is separated from the main body 10 at predetermined intervals. The main control unit 17 calculates dimensional information including height information of a predetermined portion of the subject P based on the image acquired by the imaging unit 60, and based on the calculated dimensional information, at least the position in the height direction. The movement of at least one of the measuring head 12, the face support portion 20, and the optical table 30 is controlled so as to adjust.

Therefore, it is possible to provide an ophthalmic apparatus 1 capable of improving the measurement efficiency by appropriately and quickly adjusting the height of each part with respect to the eye E to be inspected and other position adjustments.

Further, in the first embodiment, the imaging unit 60 includes a main body camera 61 installed in the main body 10 and an external camera 62 installed at a predetermined distance from the main body 10. With this configuration, the face image and the whole body image of the subject P can be taken almost at the same time, the processing efficiency in the main control unit 17 can be improved, and the dimensional information can be calculated more accurately. It should be noted that only one of the main body camera 61 and the external camera 62 may be installed, and the dimensional information can be acquired based on the image taken by only one of them, so that the ophthalmic apparatus 1 can be made simpler and cheaper. it can.

Further, in the first embodiment, the main control unit 17 calculates the interpupillary distance PD of the left and right eyes to be inspected based on the image, and adjusts the position in the horizontal direction based on the calculated interpupillary distance PD. Controls the movement of the measuring head 12. As a result, the measurement head 12 can be accurately confronted with each of the left and right eye Es to be inspected, and the measurement efficiency can be further improved.

Further, in the first embodiment, the XYZ drive mechanism / drive circuit 16 that moves the measurement head 12 at least in the vertical direction, the drive mechanism 25 that moves the face support portion 20 at least in the vertical direction, and the optical table 30 are moved in at least the vertical direction. A table elevating mechanism 32 and a table elevating mechanism 32 are provided. The main control unit 17 controls these based on the height information. As a result, the measurement head 12, the face support portion 20, and the optical table 30 can be moved more smoothly and quickly in the vertical direction.

Further, if the height information includes at least one of the height of the subject, the height BL from the buttocks D to the eye E, and the height AL from the jaw C to the eye E, these heights. Based on the information, the positions of the measurement head 12, the face support portion 20, and the optical table 30 can be adjusted appropriately and quickly to improve the measurement efficiency.

Further, in the first embodiment, the elevating chair 50 on which the subject P is seated and the chair elevating mechanism 52 for moving the elevating chair 50 at least in the vertical direction are provided. The main control unit 17 controls the chair elevating mechanism 52 so as to move the elevating chair 50 at least in the vertical direction based on the height information. As a result, the height of the lifting chair 50 can be adjusted to a height corresponding to the height of the subject P. Further, when the height of the optical table 30 or the like cannot be sufficiently adjusted, the height of the lifting chair 50 can be adjusted together with the optical table 30 so that the subject P does not have to bear the burden and the height is more comfortable. Adjustment is possible.

Further, if the face support portion 20 has at least one of a chin receiving portion 22 that supports the chin C of the subject P and a forehead contact portion 24 that supports the forehead H of the subject P, the subject is examined. The face of person P can be stably supported. In the first embodiment, since both the chin receiving portion 22 and the forehead rest portion 24 are provided, the face of the subject P can be supported more stably, and more efficient and highly accurate measurement can be performed. It will be possible.

Further, in the first embodiment, a storage unit 18 for storing dimensional information is provided. As a result, for example, at the time of the next examination or examination, the dimensional information of the subject P is acquired from the storage unit 18, and based on this, the optical table 30, the elevating chair 50, the face support unit 20, and the measurement head 12 It can be configured to perform position adjustment including height adjustment. Therefore, it is not necessary for the imaging unit 60 to perform re-imaging and the main control unit 17 to recalculate the dimensional information, and the position of the ophthalmic apparatus 1 can be adjusted easily and more quickly, so that more efficient measurement can be performed. It will be possible. In addition, the physical burden on the subject P due to re-imaging or the like can be reduced.

Further, when at least one of the measurement head 12, the face support portion 20, and the optical table 30 is moved, but the eye E to be inspected is not located within the measurement allowable range of the measurement head 12, that is, in the display area 40a such as the image to be inspected. , The anterior segment image Gf for alignment may not be displayed properly. This situation occurs, for example, when the posture at the time of taking an image is bad and there is an error in acquiring dimensional information. In this case, the main control unit 17 recalculates the dimensional information including the height information of the predetermined portion of the subject based on the facial image and the whole body image, and at least the height is based on the recalculated dimensional information. It is preferable to re-control the movement of at least one of the measuring head 12, the face support portion 20, and the optical table 30 so as to adjust the position in the vertical direction (feedback loop control). By controlling in this way, the alignment of the measurement optical system 15 with respect to the eye E to be inspected can be performed with higher accuracy.

(Modification example)
By the way, in the first embodiment, the examiner is near the examinee P, and the examiner operates the display surface 40 to perform imaging, alignment, measurement of eye characteristics, and the like by the imaging unit 60. However, as another different embodiment (modification example), a configuration in which all operations are automatically performed may be used. For example, when the subject P stands at the shooting position G, the subject P is recognized by the motion sensor and the face recognition function, and the image pickup unit 60 acquires the image. Then, the main control unit 17 that receives this image calculates the dimensional information, and adjusts the height and position of the optical table 30 and the like. Next, when it is detected by image analysis or the like that the subject P is ready for measurement, the main control unit 17 controls the XYZ drive mechanism / drive circuit 16 to perform alignment. When the alignment is normally performed, the main control unit 17 controls the measurement optical system 15 and the like to measure the eye characteristics of the eye E to be inspected. As a result, it is possible to provide an ophthalmic apparatus 1 capable of automatically performing the process from positioning to measurement of the ophthalmic apparatus 1 without an examiner, and can be so-called unmanned or automated.

Further, as a further different embodiment, the monitor unit 14 may be attached and detached, and the monitor unit 14 may be held and operated by the examiner. Further, separately from the monitor unit 14, a controller such as a tablet terminal having an operation unit 19 such as a touch panel or a keyboard, an information terminal such as a smartphone, or a dedicated terminal is provided, and the display unit of the monitor unit 14 is displayed on the display unit of this controller. The same operation screen as the surface 40 may be displayed. In this case, the examiner can hold the monitor unit 14 and the controller and operate while visually recognizing the state of the examinee P from a desired direction. Further, even if the examiner is not near the subject P, the ophthalmic apparatus 1 can be operated even in a separate room, a reception desk, or a remote place such as a management center, so that the ophthalmic apparatus can be operated remotely. 1 can be provided. Even in this case, whether or not the position adjustment is properly performed by visually recognizing the facial image, the whole body image, and the dimensional information displayed in the first subject image display area 40g1 and the second subject image display area 40g2. Can be confirmed.

In the first embodiment, the face image of the subject P is taken by the main body camera 61, the height AL from the jaw C of the subject P to the eye E to be examined is calculated, and the subject P is calculated by the external camera 42. The height is calculated by taking a full-body image of the camera, and the height BL from the seat surface (buttocks) to the eyes is calculated based on the height, but the height is not limited to this. As another different embodiment, for example, only the main body camera 61 is provided, and the height AL from the jaw to the eye is calculated based on the facial image of the subject P taken by the main body camera 61, and the height AL and the height AL and the height AL are calculated. The height BL from the seat surface to the eyes may be calculated based on statistical information related to the size of the human body such as height. Alternatively, only the external camera 62 is provided, the height of the subject P is calculated based on the whole body image of the subject P taken by the external camera 62, and the height AL from the jaw to the eye is calculated based on this height. , The height BL from the seat surface to the eyes may be calculated. It is also possible to detect the eye E, the chin C, and the buttocks D from the whole body image, and calculate the height AL and the height BL.

Further, by adjusting the mounting position and the angle of view of the main body camera 61, it is possible to take a whole body image of the subject P with the main body camera 61. Based on this whole body image, the height AL and the height BL can be calculated. Further, by changing the magnification of the external camera 62, the whole body image and the face image of the subject P are taken, the height BL is calculated based on the whole body image, and the height AL is calculated based on the face image. You can also do it.

Further, the ophthalmic apparatus 1 is connected to another ophthalmic apparatus via a communication network, and the main control unit 17 associates the calculated dimensional information with the subject P and sends it to the other ophthalmic apparatus. , The dimensional information can be shared by a plurality of ophthalmic devices. As a result, the other ophthalmic apparatus can adjust the position of each part based on the dimensional information calculated by the ophthalmic apparatus 1, and it is not necessary to take an image or calculate the dimensional information by the other ophthalmic apparatus, which is efficient. Position adjustment and measurement are possible.

(Second Embodiment)
Next, the ophthalmic apparatus 1A of the second embodiment will be described with reference to FIG. 7. FIG. 7 is a perspective view showing the appearance of the ophthalmic apparatus 1A according to the second embodiment. The ophthalmic apparatus 1A according to the second embodiment shown in FIG. 7 is an optometry apparatus including a reflector head (measurement unit) 70 as a main body and an optotype presenting device 71. The ophthalmic apparatus 1A includes an ophthalmic apparatus main body 2A having the reflector head (measurement unit) 70, an optotype presenting apparatus 71, a forehead contact portion 24A as a face support portion, and an optical table 30A for supporting the reflector head 70. The elevating chair 50, the imaging unit 60, and the controller 72 are provided.

The reflector head 70 has two units arranged side by side in pairs corresponding to the left and right eye Es of the subject P, and is arranged between the optotype presenting device 71 and the subject P. It is suspended and supported by a support column 73 rising from the optical table 30A via an arm 74. The arm 74 is provided with a forehead contact portion 24 at the center of the pair of reflector heads 70 so as to be movable in the vertical direction (Y-axis direction) and further in the front-rear direction (Z-axis direction). ..

The arm 74 is configured to rotate about the support column 73 and move in the vertical direction along the support column 73 under the control of the controller 72. Therefore, the support column 73 and the arm 74 function as a measuring unit moving mechanism for adjusting the height of the reflector head 70. In addition to the vertical movement of the top plate 31, the height of the reflector head 70 can be adjusted by moving the arm 74 up and down.

The optical table 30A includes a top plate 31, a table elevating mechanism 32 (elevating rod 32a, support rod 32b, drive unit 32c) provided on one side of the top plate 31, a table control unit 33, and the like, and includes a main control unit 17. Under control, it can move up and down. The elevating chair 50 includes a seat surface 51, a chair elevating mechanism 52, a chair control unit 53, and the like, and can move in the vertical direction under the control of the main control unit 17.

Further, since the table elevating mechanism 32 is provided on one side of the top plate 31, the space below the top plate 31 can be widened so that the feet and the like of the subject P can be arranged, which makes the subject P more comfortable. Can be measured in a good posture. In addition, measurement in a wheelchair becomes easy.

In the second embodiment, the main body camera 61a of the imaging unit 60 is installed above the optotype presenting device 71. The main body camera 61a makes it possible to take a facial image of the subject P standing in front of the elevating chair 50. In addition to this, as in the first embodiment, an external camera that captures the entire image of the subject P may be further installed on the wall surface or the like. Alternatively, an external camera may be installed instead of the main camera 61a.

By the way, in the case of the ophthalmic apparatus 1A as in the second embodiment, the subject P who has entered the examination room or the like wraps around in front of the optical table 30A from the optotype presenting apparatus 71 side and moves to the elevating chair 50. I may sit down. Using such a flow line of the subject P, as another different embodiment, as shown by a virtual line in FIG. 7, behind the reflector head 70 (the side facing the optotype presenting device 71). The main body camera 61b may be installed. Then, if the subject P is photographed when the subject P enters the examination room or the like, the height of each part of the ophthalmic apparatus 1A is determined based on the dimensional information by the time the subject P sits on the elevating chair 50. The chair can be adjusted, the positions of the left and right reflector heads 70 can be adjusted according to the interpupillary distance PD, and the like, and the eye examination can be performed more quickly and more efficiently.

The controller 72 is composed of a notebook personal computer having an operation unit 19 such as a touch panel, a keyboard and a mouse, a monitor unit 14, a tablet terminal, a mobile terminal (information processing device) such as a smartphone, a controller dedicated to eye examination, and the like. .. The controller 72 controls the operation of the entire ophthalmic apparatus 1A, such as the reflector head 70, the optotype presenting device 71, the optical table 30A, and the elevating chair 50.

Similarly to the first embodiment, the ophthalmic apparatus 1A having the above-described configuration also analyzes the image of the subject P taken by the imaging unit 60 to increase the height of the subject P from the eye E to the forehead H. It is possible to acquire various dimensional information such as the height BL from the buttocks to the eye E to be inspected and the interpupillary distance PD. By adjusting the positions of the reflector head 70, the optical table 30A, the elevating chair 50, the forehead pad 24, and the reflector head 70 based on this dimensional information, the subject P sits on the elevating chair 50 and foreheads. By simply abutting the forehead H against the contact portion 24, it is possible to take a reasonable and comfortable measurement posture, and the eye examination can be performed immediately. In this way, the height adjustment of the reflector head 70 (measurement unit) with respect to the eye E to be inspected, the position adjustment in the horizontal direction, and the like can be appropriately and quickly performed to improve the eye examination efficiency.

(Third Embodiment)
Next, the ophthalmic system SY of the third embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is a diagram showing a block configuration of the ophthalmic system SY according to the third embodiment. FIG. 9 is a plan view showing an example of the floor plan of the medical institution 100 in which the ophthalmic devices 1 to 1C of the ophthalmic system SY of the third embodiment are installed.

The medical institution 100 shown in FIG. 9 includes a reception 101, a plurality of examination rooms (examination room 1, examination room 2, ...) 102, an examination room 103, a dark room examination room 104, an operating room 105, a medical office 106, and a treatment room 107. Etc.

In the ophthalmology system SY of the present embodiment, for example, an ophthalmology device 1B made of a slit lamp is installed in each examination room 102, and in the examination room 103, for example, an ophthalmology device 1 and a first ophthalmology device 1 made of an autorefkeratometer of the first embodiment. An ophthalmic apparatus 1A or the like including the optometry apparatus of the second embodiment is installed. In the darkroom examination room 104, for example, an ophthalmologic apparatus 1C including a fundus photography apparatus is installed. However, the ophthalmic devices installed in each room are not limited to these.

The ophthalmic devices 1B and 1C also include an ophthalmic device main body having a main body (measurement unit) and a face support unit, an optical table, a main control unit, and the like, and those measuring in a sitting position also have an electric chair. Further, at the reception 101 and the like, a controller 72 capable of inputting operation instructions and the like to the management server 80 and each ophthalmic device 1 to 1C is installed.

Each ophthalmic apparatus 1 to 1C is connected to a management server 80 via a communication network N such as a LAN (Local Area Network), and the operation and measurement results of the ophthalmic apparatus 1 are managed by the management server 80. In the present embodiment, the control unit of the management server 80 functions as the main control unit 17'that calculates the dimensional information of the subject P by image analysis and controls each ophthalmic apparatus 1 to 1C to adjust the position. .. The management server 80 also includes a storage unit 18'for storing statistical data, calculated dimensional information, measurement results, and the like.

In the present embodiment, the external camera 62 (imaging unit 60) of the first embodiment is installed on the wall surface W of the corridor 109 from the waiting room 108 to each examination room 102. The photographed image of the subject P taken by the external camera 62 is sent to the management server 80 via the communication network N, and is used for adjusting the position of each part of each ophthalmic apparatus 1 to 1C. That is, the external camera 62 is shared by each ophthalmic apparatus 1 to 1C. In addition, the face image of the subject P may be taken by the main body cameras 61 and 61a of the ophthalmic devices 1 and 1A, and based on this, the position adjustment of each part may be performed more finely by the ophthalmic devices 1 and 1A. The facial image may be sent to the management server 80 so that it can be used by other ophthalmic devices 1B and 1C.

In the ophthalmology system SY having such a configuration, when the subject P heads for the examination room 102 or the examination room 103, the external camera 62 takes a full-body image of the subject P and sends it to the management server 80. This shooting may be performed, for example, by an examiner (receptionist or the like) inputting a shooting instruction from the controller 72 of the reception 101. Alternatively, a motion sensor may be attached to the external camera 62 so that the subject P can approach the subject P within the range of the motion sensor, or the external camera 62 can use the face recognition function to recognize the subject P's face. May be performed when is detected.

When the main control unit 17'of the management server 80 receives the image signal from the external camera 62, it performs image analysis, and based on the analysis result and the statistical data of the storage unit 18', the jaw C of the subject P The height AL from the eye to the eye to be inspected E, the height BL from the buttocks to the eye to be inspected E, the interpupillary distance PD, and other dimensional information are calculated. Based on this dimensional information, movement information such as the measurement unit, face support unit, optical table, and lift chair movement direction, movement amount, and movement speed suitable for each of the medical devices 1 to 1C is calculated, and the communication network N It is sent to each ophthalmic apparatus 1 to 1C via.

Movement information may be calculated and sent to all ophthalmic devices 1 to 1C, but the subject P selects only the ophthalmic device to be measured, and the movement information of the selected ophthalmic device is used as the main control unit. 17'may be calculated and sent. For example, a doctor or a person who has been instructed by a doctor may select an ophthalmic device by a controller or the like, or the management server 80 may automatically select an ophthalmic device based on input data of an electronic medical record.

Each ophthalmic device 1 to 1C that has received the movement information adjusts the positions of the measuring unit, the face support unit, the optical table, and the elevating chair according to the movement information. As a result, the subject P can move between the examination room 102, the examination room 103, and the like while sitting on the elevating chair 50 in the room (in the ophthalmic apparatus for measuring in a standing position, only standing in front of the chair 50). It is possible to confront the ophthalmic device in an appropriate and comfortable measurement posture. Therefore, it is possible to measure eye characteristics more quickly and more efficiently.

Further, in the case of such remote control, the state of the subject P and the like cannot be directly visually recognized. However, the display surface of the controller 72 is configured to display a screen as shown in FIG. 5, and the facial image and the whole body displayed in the first subject image display area 40g1 and the second subject image display area 40g2. By visually recognizing the image, it is possible to confirm whether or not these shootings and acquisition of dimensional information are properly performed. Further, if the facial image or the whole body image in the measured state is displayed, it can be confirmed whether or not the position adjustment of the ophthalmic apparatus 1 is properly performed, and if the measurement posture is inappropriate, the non-measured state is displayed. It is possible to instruct the subject P to start over from the shooting of.

Further, the management server 80 stores the acquired image, the calculated dimensional information, and the movement information corresponding to each of the ophthalmic devices 1 to 1C in the storage unit 18'in association with the ID of the subject P, for example. You can also. Alternatively, this information can be stored in the storage unit 18 of each ophthalmic apparatus 1 to 1C. As a result, when the subject P visits the next time, the information of the subject P can be acquired from the storage units 18, 18'by inputting the ID with the controller 72. Therefore, the position of each part of the ophthalmologic devices 1 to 1C can be adjusted more quickly based on the acquired information without re-imaging by the imaging unit 60 or calculating the dimensional information. In addition, the physical burden on the subject P due to re-imaging or the like can be reduced.

Further, it is not always necessary to provide the management server 80, and the ophthalmic devices 1 to 1C may be configured to be able to send and receive dimensional information and other information to each other via the communication network N. Thereby, the dimensional information and the like can be shared between the ophthalmic devices 1 to 1C, and the position adjustment of each part in each ophthalmic device 1 to 1C can be performed more quickly.

Although the embodiments of the present disclosure have been described in detail with reference to the drawings, each of the above embodiments is merely an example of the present disclosure, and the present invention is not limited to the configuration of each of the above embodiments. .. Of course, any design changes that do not deviate from the gist of this disclosure are included in this disclosure.

Further, in each of the above embodiments, the measurement head 12 is movable in the XYZ direction, and the measurement head 12, the optical table 30, and the face support portion 20 are moved according to the dimensional information, but the configuration is limited to such a configuration. There is no such thing. For example, even in an ophthalmic apparatus having a structure in which the measuring unit does not move, the position of the measuring unit can be appropriately aligned with respect to the eye E to be inspected by adjusting the positions of the optical table 30 and the face support unit 20.

Further, in each of the above embodiments, the external camera 62 is installed on the side wall surface W of the subject P, but the present invention is not limited to this. If it is possible to acquire an image that can acquire the height and the like of the subject P, the front of the ophthalmic apparatus main body 2 (that is, the back side of the subject P) or the rear of the ophthalmic apparatus main body 2 (that is, the front of the subject P). It may be installed on the side). Further, as shown by a virtual line in FIG. 1, the image may be installed at a position where an image can be taken from the left or right diagonally forward of the subject P, and the chin C, forehead H, and buttock D of the subject P may be installed. And it becomes possible to acquire a whole body image including the left and right eye Es to be examined. Further, it is not necessary to install the external camera 62 on the wall surface W, and the external camera 62 may be installed by using a camera stand or hanging from the ceiling.

Further, in each of the above embodiments, the main body cameras 61 and 61a are installed on the upper surface of the main body portion 10, but the present invention is not limited to this. For example, it may be installed in the vicinity of the chin receiving portion 22, the upper part of the forehead rest portion 24, the side of the support column 23, the side of the main body portion 10, or the like. When installed on the side of the support column 23 or the main body 10, it is possible to take not only a facial image but also a whole body image by adjusting the angle of view and the magnification. It is desirable to install the ophthalmic apparatus 1 at an appropriate position according to the function, purpose of use, and the like.

Further, in each of the above embodiments, the image pickup unit 60 captures the subject P in the non-measurement state (non-measurement posture), but further, the subject P in the measurement state (measurement posture) after the position adjustment is taken. It may be configured to take a picture and monitor the state of the subject P. With this configuration, for example, when the examiner visually recognizes the photographed image displayed on the display surface 40 and the chin C or forehead H is separated from the face support portion 20, or the neck is bent and the posture is cramped. , The examiner operates the jaw receiving vertical movement button B3 to move the jaw receiving portion 22 upward. On the contrary, when the chin receiving portion 22 is too high and the subject P is in a position to forcibly extend the neck, the chin receiving portion is moved downward. Further, when the optical table 30 and the elevating chair 50 are far apart from each other and the measurement posture is unreasonable, the subject P himself should adjust the front-rear position of the elevating chair 50 directly or through a microphone or the like. Can be instructed to. By such position adjustment, the subject P can measure in an appropriate and comfortable measurement posture with less burden. In particular, it is effective when the examiner cannot directly visually recognize the posture of the examinee P, such as at a reception desk or a remote place.

Further, the main control unit 17 detects the measurement posture of the subject P by image analysis, and if the measurement posture is unnatural as described above, the jaw receiving portion 22 is automatically controlled by the main control unit 17. The subject P may be able to measure easily and without discomfort even if he / she is unmanned.

Further, as another different embodiment, the face support unit 20 may include a detection unit that detects whether or not the face is supported. Examples of the detection unit include a pressure sensor, a photo sensor, a magnetic sensor, a switch, and the like that detect that the forehead H and the chin C have come into contact with the face support portion 20. Further, if the contact state between the face support unit 20 and the face is detected based on the image taken by the image pickup unit 60, the image pickup unit 60 can function as the detection unit. After confirming that the face of the subject P is properly supported by the face support unit 20 by the detection unit, the measurement can be performed by starting the alignment, the measurement, etc. under the control of the main control unit 17. Unmanned and automated is possible.

Further, in each of the above embodiments, the main control unit 17 analyzes the whole body image or the facial image taken by the imaging unit 60 to detect the eye E, the chin C, the buttocks D, and the like. On the other hand, as another different embodiment, for example, a whole body image or a facial image taken on the display surface 40 is displayed, and the examiner touches the eye E, the chin C, the buttocks D, and the like to perform these. By indicating the position of, the detection accuracy of these parts can be further improved, and the dimensional information such as the height AL, BL, and the interpupillary distance PD can be calculated with higher accuracy.

1,1A, 1B, 1C Ophthalmology equipment 10 Main body 18, 18'Memory 20 Face support 22 Jaw support 24, 24A Forehead rest 30, 30A Optical table 60 Imaging unit 73 Support 74 Arm AL, BL Height C Jaw D Gluteal part E Eye to be inspected H Forehead N Communication network P Subject PD Interpupillary distance SY Ophthalmology system

Claims (11)

A main body having a measuring unit for acquiring information on the subject's eye to be inspected,
A face support portion that supports the subject's face and
An optical table on which the main body is placed and
An imaging unit that acquires an image of the subject, and
The measuring unit, the face support unit, and a control unit that controls the operation of the optical table are provided.
The imaging unit acquires the image of the subject located at a predetermined distance from the main body portion in a state where the face is not supported by the face supporting unit.
The control unit calculates dimensional information including height information of a predetermined portion of the subject based on the image acquired by the imaging unit, and based on the calculated dimensional information, at least in the height direction. An ophthalmic apparatus comprising controlling the movement of at least one of the measuring unit, the face support unit, and the optical table so as to adjust the position. The ophthalmic apparatus according to claim 1, wherein the imaging unit includes a camera installed at a predetermined distance from the main body and / or the main body. The control unit calculates the interpupillary distance between the left and right eyes to be examined based on the image, and controls the movement of the measuring unit so as to adjust the position in the horizontal direction based on the calculated interpupillary distance. The ophthalmic apparatus according to claim 1 or 2. A measuring unit moving mechanism that moves the measuring unit at least in the vertical direction, a face supporting unit moving mechanism that moves the face supporting unit at least in the vertical direction, and a table moving mechanism that moves the optical table at least in the vertical direction. Any one of claims 1 to 3, wherein the control unit controls the measuring unit moving mechanism, the face support moving mechanism, and the table moving mechanism based on the height information. The ophthalmic device described in. As a result of moving at least one of the measuring unit, the face support unit, and the optical table, when the eye to be inspected is not located within the measurement allowable range of the measuring unit, the control unit is based on the image. Then, the dimensional information including the height information of the predetermined portion of the subject is recalculated, and the measuring unit and the face support are adjusted so as to adjust at least the position in the height direction based on the recalculated dimensional information. The ophthalmic apparatus according to any one of claims 1 to 4, wherein the movement of at least one of the unit and the optical table is controlled again. Any one of claims 1 to 5, wherein the height information includes at least one of the height of the subject, the height from the buttocks to the eye to be examined, and the height from the chin to the eye to be examined. The ophthalmic device described in the section. A chair on which the subject sits and a chair moving mechanism for moving the chair at least in the vertical direction are provided, and the control unit moves the chair at least in the vertical direction based on the height information. The ophthalmic apparatus according to any one of claims 1 to 6, wherein the chair moving mechanism is controlled. Any of claims 1 to 7, wherein the face support portion has at least one of a chin receiving portion that supports the chin of the subject and a forehead contact portion that supports the forehead of the subject. The ophthalmic apparatus according to paragraph 1. The ophthalmic apparatus according to any one of claims 1 to 8, further comprising a storage unit for storing the dimensional information. The ophthalmic apparatus is connected to another ophthalmic apparatus via a communication network, and the control unit transmits the calculated dimensional information to the other ophthalmic apparatus in association with the subject. The ophthalmic apparatus according to any one of claims 1 to 9. The ophthalmic apparatus according to any one of claims 1 to 10 and a server connected to the ophthalmic apparatus via a communication network are provided, and the control unit of the ophthalmic apparatus obtains the calculated dimensional information. It is sent to the server in association with the subject, and the server makes the dimensional information associated with the subject available to other ophthalmic devices connected via the communication network. An ophthalmic system characterized by storing in a memory unit.

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