JP7437554B2 - Ophthalmology equipment and systems - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to ophthalmological devices and 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 directions with respect to the eye to be examined. An ophthalmological device that can be provided is known (for example, see Patent Document 1). The face rest device is provided with a chin rest part on which the subject's chin is placed and whose height can be adjusted, and a forehead rest part on which the subject's forehead is placed.

When measuring the characteristics of the eye to be examined using the ophthalmological apparatus described in Patent Document 1, the optical table and chair are moved up and down according to the sitting height of the examinee, and the chin rest is moved up and down. Adjust the height between the eye to be examined and the measuring section. Thereafter, by moving the main body in the XYZ directions, the measuring section is placed at an appropriate position with respect to the eye to be examined, and the characteristics of the eye to be examined are measured by driving the measuring section.

International Publication No. 2003/041571

However, since the height of the eye to be examined varies depending on the height, sitting height, and posture of the patient, it is complicated and time-consuming to adjust the height by moving the optical table, chin rest, etc. up and down according to the height of the eye to be examined. It took a long time to start measurement.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ophthalmological apparatus that can appropriately and quickly adjust the position of each part, such as height adjustment, with respect to the eye to be examined, and improve measurement efficiency. With the goal.

In order to achieve the above object, the ophthalmologic apparatus of the present invention includes a main body section having a measurement section that acquires information about the eye of a subject, a face support section that supports the face of the subject, and a main body section that includes a face support section that supports the face of the subject. an optical table on which is placed, an imaging unit that acquires an image of the subject, and a control unit that controls operations of the measurement unit, the face support unit, and the optical table, the imaging unit , acquiring the image of the subject who is located at a predetermined distance from the main body with the face not supported by the face support section, and the control section controlling the image acquired by the imaging section. , calculate dimensional information including height information of a predetermined part of the subject, and before the subject places the face on the face support, at least The method is characterized in that movement of the measuring section, the face support section, and the optical table is controlled so as to adjust the positions in the height direction.

In the ophthalmological apparatus of the present disclosure configured in this way, the imaging unit acquires an image of the subject whose face is not supported by the face support unit and is located at a predetermined distance from the main body. Based on this image, the control unit calculates dimensional information including height information regarding the height of the subject, such as body height and the height of the subject's eye E, and calculates at least the height based on the calculated height information. The movement of at least one of the measurement unit, the face support unit, and the optical table is controlled so as to adjust the position in the direction. Therefore, when the examinee places his or her face on the face support, the examinee can face the ophthalmological device in an appropriate and comfortable posture, and the measurement unit can be placed at an appropriate position relative to the examinee's eye. I can do it. Therefore, the height adjustment and other positional adjustment of each part relative to the eye to be examined can be appropriately and quickly performed, and measurement efficiency can be improved.

FIG. 1 is a perspective view showing the appearance of an ophthalmologic apparatus according to a first embodiment. FIG. 1 is a side view showing the appearance of the ophthalmologic apparatus according to the first embodiment. FIG. 1 is a diagram showing a block configuration of an ophthalmologic apparatus according to a first embodiment. It is a flowchart which shows an example of operation of the ophthalmological apparatus concerning a 1st embodiment. FIG. 3 is an explanatory diagram showing an example of an eye image to be examined and operation buttons displayed on a display screen, and is a diagram showing a state of the eye image to be examined before alignment is completed. FIG. 3 is an explanatory diagram illustrating an example of an eye image to be examined and operation buttons displayed on a display screen, and is a diagram illustrating a state when performing measurement after alignment is completed. FIG. 2 is a perspective view showing the appearance of an ophthalmologic apparatus according to a second embodiment. FIG. 3 is a diagram showing a block configuration of an optometry system according to a third embodiment. It is a top view which shows an example of the floor plan of the medical institution in which the ophthalmology apparatus of the ophthalmology system of 3rd Embodiment is installed.

(First embodiment)
Hereinafter, an ophthalmologic apparatus according to a first embodiment will be described based on the drawings. First, the configuration of the ophthalmologic apparatus 1 according to the first embodiment will be explained based on FIGS. 1 to 3. FIG. 1 is a perspective view showing the appearance of an ophthalmologic 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 ophthalmologic apparatus 1 according to the first embodiment.

Note that the X-axis, Y-axis, and Z-axis are taken as shown in each figure throughout this specification. The description in the specification will be made with reference to the vertical direction (the positive direction of the Y-axis is the upward direction, the negative direction of the Y-axis is the downward direction, and the vertical direction is sometimes referred to as the height direction). In addition, the patient P side (Z-axis negative direction) is the front of the ophthalmological device 1, the side facing the patient P (Z-axis positive direction) is the back of the ophthalmological device 1, and the right side of the patient P (X-axis The positive direction) is defined as the right side of the ophthalmologic apparatus 1, and the left side of the subject P (X-axis negative direction) is defined as the left side of the ophthalmologic apparatus 1.

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

Note that the ophthalmologic apparatus 1 to which the present invention is applied is not limited to an autoref keratometer. In other different embodiments, the ophthalmological device may include a visual target display device, a refractor head, an optometry device equipped with a visual target display device or a refractor head, other subjective testing devices, an objective refraction measuring device, a corneal shape measuring device, Fundus imaging 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 ophthalmoscope (SLO), etc. may be used.

As shown in FIGS. 1 to 3, the ophthalmological apparatus 1 according to the first embodiment includes an ophthalmic apparatus main body 2 having a main body part 10 and a face support part 20, and an optical table on which the ophthalmic apparatus main body 2 is placed and which can be raised and lowered. 30, an elevating chair 50 on which the patient P is seated and can be raised and lowered freely, an imaging unit 60 that captures an image of the patient P, and operations of the ophthalmological apparatus main body 2, the optical table 30, the elevating chair 50, and the imaging unit 60. The main control unit 17 is a control unit that controls the main control unit 17. In addition to this, the ophthalmological apparatus 1 includes an operation section 19 through which the examiner inputs data to the ophthalmological apparatus 1 and gives operational instructions.

When acquiring information (eye characteristics) of the eye E to be examined, the ophthalmological apparatus 1 of the present embodiment captures an image of the examinee P while the face of the examinee P is not supported by the face support unit 20. However, the position of any one of the measuring head 12, face support section 20, optical table 30, and elevating chair 50 is automatically adjusted based on the dimensional information of the subject P calculated based on this image. be.

In this specification, a state in which the subject P places his or her face on the face support unit 20 and faces the ophthalmological apparatus main body 2 and is able to measure or is currently measuring the ocular characteristics of the subject's eye E is referred to as a "measuring state." , the posture of the subject P in this "measurement state" is referred to as a "measurement posture." Furthermore, on the other hand, a state where the subject P is in the vicinity of the ophthalmological apparatus main body 2 but does not put his or her face on the face support part 20 before measurement is referred to as a "non-measurement state". The posture of the subject P in the "measurement state" is referred to as the "non-measurement posture."

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

The base portion 11 of the main body portion 10, the measurement head 12, and the monitor portion 14 are electrically connected. Further, the main body section 10, the face support section 20, the optical table 30, and the elevating chair 50 are also electrically connected. Therefore, data and operation instructions can be communicated between the base section 11, the measuring head 12, and the monitor section 14, as well as between the main body section 10, the face support section 20, the optical table 30, and the elevating chair 50. becomes. Further, for example, a configuration may be adopted in which power is supplied from a power supply section provided in the base section 11 to the measurement head 12, the monitor section 14, and the face support section 20, as well as the optical table 30 and the elevating chair 50. Note that the power supply units for the optical table 30 and the elevating chair 50 may be provided separately from the ophthalmologic apparatus main body 2.

Inside the measurement head 12, as shown in FIGS. 2 and 3, a known measurement optical system 15 for observation and photographing, a control circuit for controlling the measurement optical system 15, and the like are provided. The measurement optical system 15 includes an optical lens, an image sensor, etc., and allows the anterior segment, cornea, fundus, etc. of the eye E of the subject P to be observed and photographed. In front of the measurement head 12, a light source for illuminating the anterior segment of the eye and for measuring the membrane shape is arranged in an annular shape.

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 directions. The XYZ drive mechanism/drive circuit 16 uses, for example, a stepping motor as a drive mechanism.

The measurement head 12 is driven by an XYZ drive mechanism/drive circuit 16 with respect to the base portion 11 in a horizontal direction, i.e., front, rear, left, and right directions (X-axis direction and Z-axis direction), and a vertical direction, that is, an up-down direction (Y-axis direction) perpendicular thereto. driven by Thereby, the measurement head 12 is supported so as to be movable in the horizontal and vertical directions relative to the base portion 11. The measurement head 12 can be driven by operating the touch panel display surface 40 of the monitor section 14. That is, the display surface 40 functions as the operation section 19.

The monitor section 14 is made of a liquid crystal display and has a touch panel type display surface 40 on which an image of the eye to be examined, operation buttons, etc. are displayed. The monitor section 14 is covered with a cover member 14a. A control circuit unit and the like are built into the cover member 14a. The monitor section 14 is attached to a support section 12a fixed to one edge of the top of the measurement head 12 so as to be rotatable around a horizontal axis (around the X axis or the Z axis) and around a vertical axis (around the Y axis). There is. With this configuration, the display surface 40 of the monitor unit 14 can be arranged at a desired angle or direction depending on the examiner's position, posture, line of sight height, etc. For example, the display surface 40 can be directed toward the back of the main body 10 as shown in FIG. 2, or the display surface 40 can be directed toward the front of the main body 10 as shown in FIG. Furthermore, the monitor section 14 can be placed on the right or left side of the main body section 10, and the display surface 40 can be directed to the right or left side.

In terms of hardware, the control circuit unit is configured to include a microprocessor, RAM, ROM, EEPROM, flash memory, and the like. The control circuit unit functions as the main control section 17, internal memory 17a, and storage section 18 shown in FIG. The main control section 17 mainly consists of a microprocessor, the internal memory 17a consists of a RAM, etc., and the storage section 18 consists of a ROM, EEPROM, flash memory, etc.

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

In addition, the main control unit 17 analyzes the image of the subject P taken by the imaging unit 60, and based on the preset distance between the subject P and the imaging unit 60, the main control unit 17 Calculate height information as dimensional information of the part. The height information includes, for example, the height of the subject P, the sitting height, the height AL from the chin C to the subject's eye E (hereinafter sometimes simply referred to as "height AL"), and whether the subject P is ascending or descending. Examples include the height BL from the buttocks (seat surface 51) to the subject's eye E when sitting on the chair 50 (hereinafter sometimes simply referred to as "height BL"). In this embodiment, the main control unit 17 also calculates dimensional information other than the height, such as the interpupillary distance PD, which is used to adjust 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, drive mechanism 25, table control unit 33, chair control unit 53, etc. based on the calculated height information, and controls the measurement head 12, face support unit 20, The optical table 30 and the lift chair 50 are moved up and down to adjust their height positions. Furthermore, based on the calculated interpupillary distance PD, the XYZ drive mechanism/drive circuit 16 is controlled to move the measurement head 12 in the horizontal direction to adjust the position in the horizontal direction. For example, the measurement head 12 is moved to a position facing either the left or right eye to be examined E.

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

Note that 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 statistical data may include the height of the subject's eye E relative to the height, Average values of height AL, height BL, interpupillary distance PD, etc. are stored. Alternatively, the ophthalmologic apparatus 1 may be equipped with AI, and the dimensional information may be calculated using the learning function of the AI.

It is desirable that the statistical data can be registered and changed (updated) by the provider or the user at the time of factory shipment, delivery, use, etc. For example, if it is possible to set statistical data such as the average value of the race, age, etc. according to the race, etc. of the country where the ophthalmological device 1 is provided, and furthermore, by age, it is possible to set statistical data such as the average value of the race, age, etc. , the height adjustment (positioning) of the optical table 30 and the lifting chair 50 can be performed more appropriately.

The main control unit 17 displays various images for operation and confirmation on the display screen 40 of the monitor unit 14. An example of a 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 includes an eye image display area 40a, operation button display areas 40b to 40d, a first patient image display area 40g1, and a second patient image display area 40a. An image display area 40g2 is provided. In the eye image display area 40a, a rectangular target area mark 40e and a minimum pupil diameter determination mark 40f are displayed at the center of the screen. The minimum pupil diameter determination mark 40f is used to stop the measurement when the pupil diameter is less than or equal to the minimum pupil diameter determination mark 40f. A facial image of the subject P photographed by the main body camera 61 is displayed in the first subject image display area 40g1. In the second subject image display area 40g2, a whole body image of the subject P photographed by the external camera 62 is displayed. Further, dimension 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 left and right sides and on the bottom side of the display screen 40, with the eye image, etc. display area 40a therebetween. The operation button display area 40b on the left side includes an ID button B1 for inputting the patient's ID, an R button B2 for selecting the right eye, and an R button B2 for vertically moving the chin rest 22 provided on the face support 20. Chin rest up/down movement button B3, reset button B4 for resetting the entire settings of the ophthalmological device 1, measurement mode button for switching measurement modes such as reflex (eye refractive power), kerato (corneal shape), reflex/kerato, etc. B5 is placed. In addition, near the chin rest vertical movement button B3, there is a switch to a mode (hereinafter referred to as "automatic adjustment mode") for automatically adjusting the positions of the measuring head 12, chin rest 22, optical table 30, and elevating chair 50. An automatic adjustment button B12 is arranged for this purpose.

In the present embodiment, automation of position adjustment is set in the ophthalmological apparatus 1 using the automatic adjustment button B12, but the invention is not limited to this. It is also possible to configure settings using physical operation switches or buttons. Further, in the case of remote control or unmanned automation, there is no need to provide these buttons, and the automatic adjustment mode can be set by turning on the power button, for example.

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

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

In the display area 40a for the eye image to be examined, in addition to the anterior eye segment image Gf being observed, images such as measurement results, characters, symbols, codes, etc. related to other examinations, as well as figures, etc. are displayed as appropriate. In FIG. 6, the anterior segment image Gf of the eye E to be examined 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 subject's eye image display area 40a with a finger or the like. The main control unit 17 receives the operation input signal from this touch operation and moves the measurement head 12 vertically and horizontally so that the image region corresponding to the touch point tp is located at the center G0 of the screen. Thereby, the pupil image Gf'' of the eye image to be examined 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. . Through this drive control, the measurement head 12 is moved in the vertical and horizontal directions (Y-axis direction and X-axis direction) with respect to the eye to be examined.

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 adjusts the distance between the detected 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, and the measuring head 12 is driven in the vertical and horizontal directions (Y-axis direction and X-axis direction), and the corneal bright spot image P1 is brought into focus. Then, the measuring head 12 is driven in the front-back direction (Z-axis direction). 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 optical system 15 is controlled by the main controller 17 to automatically start the measurement. executed.

As described above, the first subject image display area 40g1 displays the face image of the subject P taken with the main body camera 61 and the size information, and the second subject image display area 40g2 displays the face image of the subject P taken with the external camera 62. The whole body image and size information of the subject P are displayed. Therefore, the examiner can operate while checking the non-measurement posture and measurement posture of the subject P on the display surface 40, and there is no need to visually check both the subject P and the display surface 40, and the examiner can concentrate on the operation. . Furthermore, during remote operation from a separate room or a remote location, the examiner can operate the display screen 40 while checking the non-measurement posture and measurement posture of the subject P.

As described above, the operation section 19 includes the touch panel of the monitor section 14, receives operation inputs from the operation buttons, keyboard, etc. displayed on the display surface 40, and outputs this operation input signal to the main control section 17. The operation unit 19 also includes a power button of the main body 10, a power button 34 and a lift lever 35 of an optical table 30 (described later), a power button 54 and a lift lever 55 of a lift chair 50, etc., and accepts operation inputs for these. This operation input signal is output to the main control section 17 and the table control section 33. Note that if the ophthalmologic apparatus 1 is equipped with a control lever or operation buttons, these control levers and the like are also included in the operation section 19.

The face support section 20 is provided connected to the front (front) of the base section 11 of the main body section 10. Note that the configuration in which the face support section 20 is not limited to the configuration in which the face support section 20 is connected to the main body section 10 may be such that the face support section 20 is separated from the main body section 10 and installed on the optical table 30.

The face support part 20 includes a base part 21 connected and fixed to the base part 11, a chin rest part 22 provided on the base part 21 so as to be movable up and down, and a pair of pillars 23 provided protrudingly on both left and right sides of the base part 21. , a forehead rest part 24 provided at the upper end of the pair of pillars 23, a drive mechanism 25 as a face support part moving mechanism for moving the chin rest part 22 in the vertical direction, and the like. Further, in order to enable adjustment of the position in the front-back direction and the left-right direction, the face support part 20 may be provided so as to be movable in the front-back direction and the left-right direction by a drive mechanism 25.

The subject P faces the ophthalmological apparatus main body 2 while seated, for example, on an elevating chair 50 placed in front of the ophthalmological apparatus main body 2, places his or her chin on the chin rest 22, and rests on the forehead rest 24. The subject's eye characteristics are measured with the forehead H pressed against the subject's face. In addition, in the case of a short subject P such as a child, the measurement may be performed by standing and placing the face on the face support section 20 instead of sitting on the elevating chair 50. In the case of the subject P in a wheelchair, the measurement may be performed by placing the face on the face support section 20 while riding in the wheelchair.

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

The drive mechanism 25 is constituted by a known drive mechanism, and is driven under the control of the control unit to move the chin rest 22 in a predetermined movement direction upward or downward by a predetermined amount of movement (movement distance). Move at the speed of movement. In this specification, aspects, numerical values, and other conditions related to movement, such as movement direction, movement amount, and movement speed, are defined as "movement information."

The forehead rest part 24 is a member against which the forehead H of the subject P is brought into contact. In this embodiment, the forehead rest 24 is fixed to the pair of pillars 23, but in another different embodiment, the forehead rest 24 may be able to adjust its position in the front and back direction. By configuring this adjustment to be performed by an appropriate drive mechanism (face support part moving mechanism), automated adjustment or operation from the operation unit 19 is possible. Furthermore, the configuration may be such that it can be performed manually.

In addition, the face support unit 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 subject's eye E. Any configuration may be used as long as it is possible. As another different embodiment, for example, the face support section 20 may have only one of the chin rest section 22 and the forehead rest section 24. In addition, when only the forehead rest part 24 is provided, this forehead rest part 24 (or the whole face support part 20) can be made movable in the vertical direction etc. by a predetermined drive mechanism.

The drive mechanism 25 is controlled by the main control section 17. Specifically, the main control unit 17 calculates the movement information of the chin rest 22 based on the height information of the subject P calculated based on the image photographed by the imaging unit 60, and calculates the movement information of the chin rest 22. The drive mechanism 25 is controlled according to the following, and the chin rest part 22 is moved. Further, the main control section 17 controls the drive mechanism 25 in response to the operation input of the chin rest up and down movement button B3, and moves the chin rest 22 up and down.

Note that in this embodiment, the main control section 17 functions as a face support section control section, but the present invention is not limited to this, and a face support section control section may be provided separately from the main control section 17. good. In this case, the face support section control section drives and controls the drive mechanism 25 in response to an instruction signal from the main control section 17 to move the chin rest section 22 up and down.

The optical table 30 includes a top plate 31 on which the ophthalmological apparatus 1 is placed, a table lifting mechanism 32 as a table moving mechanism for lifting and lowering the top plate 31, and a table control unit 33 that controls driving of the table lifting mechanism 32. , a power button 34, a lift lever 35 for manually operating the table lift mechanism 32, and a caster base 36 to which the table lift mechanism 32 is attached. In addition, in this embodiment, since the ophthalmological apparatus 1 performs measurement while the subject P is sitting on the elevating chair 50 (sitting position), the optical table 30 having a height corresponding to measurement in the sitting position is used. There is. On the other hand, the ophthalmologic apparatus 1 may be configured to perform measurements while the subject P is standing (standing position). In this case, it is not necessary to provide the elevating chair 50, and an optical table 30 having a height suitable for measurement in a standing position is used.

The table lifting mechanism 32 raises and lowers the top plate 31 under the control of the table controller 33. Thereby, the height of the top plate 31 can be adjusted according to the height of the subject P, etc. In this way, the table elevation mechanism 32 actually moves the top plate 31 up and down, but in this specification, the term ``the optical table 30 moves up and down'' may be used to mean the same as the lifting and lowering of 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 in a vertically movable manner, and a drive section 32c that moves the elevating rod 32a up and down. Movement information (moving direction, moving distance, moving speed, etc.) of the lifting rod 32a is detected by a rotary encoder or the like, and is output to the table control section 33.

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

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 ophthalmological device 1 to a desired installation location, and by locking the casters 36a at the installation location, the ophthalmological device 1 can be stably installed to prevent unexpected movement.

The table control unit 33 includes a microprocessor, an internal memory 33a made of RAM, ROM, flash memory, etc., 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 operated up and down, and when these operations are performed, it outputs an operation input signal for raising or lowering to the table control section 33.

The table control unit 33 receives an input signal for raising or lowering from the lift lever 35, controls and drives the drive unit 32c of the table lift mechanism 32, and moves the top plate 31 (optical table 30) in the vertical direction. let Furthermore, in the automatic adjustment mode, the table control section 33 controls the drive section 32c based on the input signal from the main control section 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 that raises and lowers the seat surface 51, and a chair control section 53 that controls driving of the chair elevating mechanism 52. The chair includes a power button 54, a lift lever 55 for manually operating the chair lift mechanism 52, and legs 56 having casters 56a.

The chair elevating mechanism 52 raises and lowers the seat surface 51 under the control of the chair control section 53. Thereby, the height of the seat surface 51 can be adjusted according to the height and sitting height of the subject P. In this case as well, it may be said that "the elevating chair 50 moves up and down" in the same sense 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 in a vertically movable manner, and a drive section 52c that moves the elevating rod 52a up and down. Movement information (moving direction, moving distance, moving speed, etc.) of the lifting rod 52a is detected by a rotary encoder or the like, and is output to the chair control section 53.

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

The chair control unit 53 includes a microprocessor, an internal memory 53a made of RAM, ROM, flash memory, etc., 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 elevator lever 55 can be operated up or down, and when these operations are performed, it outputs an operation input signal for raising or lowering to the chair control section 53.

The chair control unit 53 receives an operation input signal for raising or lowering from the lift lever 55, controls and drives the driving unit 52c of the chair lifting mechanism 52, and moves the seat surface 51 (lifting chair 50) in the vertical direction. let Furthermore, in the automatic adjustment mode, the chair control section 53 controls and drives the drive section 52c based on the input signal from the main control section 17 to move the seat surface 51 in the vertical direction.

Further, the elevating chair 50 is not limited to a stool type chair as shown in FIGS. 1 and 2. Other different embodiments may include, for example, a chair with a backrest or armrests, a reclining seat, etc.

Further, in this 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 this embodiment, the power buttons 34, 54 and the lift levers 35, 55 are provided on the optical table 30 and the lift chair 50, but these may be provided on the main body 10 for ease of operation. However, it may be provided on both sides.

In the present embodiment, the ophthalmologic apparatus 1 is operated by operating a touch panel type display unit or operating various buttons or levers (34, 35, 54, 55) on the optical table 30, but the configuration is not limited to this. There isn't. For example, a controller, a PC, or the like that can communicate with the ophthalmologic apparatus 1 may be provided as the operation unit 19, and the ophthalmologic apparatus 1 may be operated using these.

The imaging unit 60 captures an image of at least the eye E of the subject P who is in a non-measurement state at a predetermined distance from the main body 10 (photographing position G), and sends an image signal to the main control unit 17. . At this time, it is desirable to take the image while the subject P is standing at the imaging position G, but for example, if the subject P uses a wheelchair, the image may be taken while sitting in the wheelchair. It can be easily determined whether the subject P is standing (standing position) or sitting (sitting position) by image analysis processing, and by using this in the calculation of movement information in the main control unit 17, the subject P's It becomes possible to calculate more reliable dimensional information and position adjustment 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 subject's eye E, and the height AL from the buttocks D (seat surface 51) to the subject's eye E. The height BL, interpupillary distance PD, etc. are calculated. Therefore, if the imaging unit 60 can capture at least an image of the eye E of the patient P, the image of the eye E of the patient P can be determined based on the position of the eye E in the image and the distance between the imaging position G and the imaging unit 60. Height can be estimated. Based on this estimated height and statistical data, the heights AL and BL can be calculated.

Furthermore, it is more desirable to obtain a facial image of the subject P including the eye E and chin C of the subject P using the imaging unit 60, so that the height AL from the chin C to the eye E, the interpupillary distance PD, etc. can be determined with higher accuracy. It can be calculated as follows. Furthermore, it is more desirable to acquire a whole body image of the subject P with the imaging unit 60, so that the height of the subject P can be acquired more accurately. The height BL can be calculated with higher accuracy.

In this embodiment, in order to capture a facial image and a whole body image of the subject P, as shown in FIGS. The external camera 62 is also equipped with an external camera 62.

The main body camera 61 is installed on the upper surface of the main body part 10. Thereby, the main body camera 61 can reliably acquire a facial image including the left and right eyes E and chin C. Further, the photographing position G of the subject P with the main body camera 61 is set at a position 40 cm from the chin rest 22. This information is input into the main body 10 in advance as distance information (40 cm or 40 cm+distance from the chin rest 22 to the main body camera 61) and is stored in the storage 18.

Further, the position of the main body camera 61 with respect to the subject P (photographing position G) changes as the optical table 30 moves in the vertical direction and the measurement head 12 moves in the XYZ directions. 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 from this initial position in the height direction (Y-axis direction), and the ceiling of the measurement 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 movement distance in the XZ direction from the initial position of the measurement head 12 with respect to the chin rest 22 (face support part 20). It can be calculated based on Thereby, positional information (distance, direction, etc. in the XYZ directions) regarding the positional relationship between the photographing position G and the main body camera 61 can be obtained. This position information is also stored in the storage unit 18 and is updated sequentially as the optical table 30 and measurement head 12 move. This distance information and position information of the main body camera 61 are used when the main control unit 17 calculates the height AL, interpupillary distance PD, etc. of the subject P based on the facial image from the main body camera 61.

The main body camera 61 is installed facing forward so that a facial image including the subject's eyes E and chin C can be captured when the subject P stands at the imaging position G, and the imaging conditions such as magnification and angle of view are adjusted. For example, if a wide-angle lens is used in the main body camera 61, a facial image of the subject P can be reliably captured even if the height of the subject P varies.

The external camera 62 is installed on the side wall W of the main body 10 at a predetermined distance away from the main body 10 . Thereby, a whole-body image including the eyes E, chin C, and buttocks D of the subject P at the imaging position G can be captured from the side, and the dimensional information can be calculated with higher accuracy. The position information of this external camera 62 is input to the main body section 10 when the installation is completed, and is stored in the storage section 18. Examples of the positional information include the distance and direction between the external camera 62 and the main body 10 (or the photographing position G) in the XYZ axis directions. This position information of the external camera 62 is used when the main control unit 17 calculates height information such as the height and height BL of the subject P based on the whole body image from the external camera 62.

Photographing by the main body camera 61 and external camera 62 may be performed automatically by detecting that the subject P is at the photographing position G using a human sensor or a face recognition function, or may be performed automatically by the examiner. This may be done by operating the unit 19 or the like and giving a shooting instruction to the main body camera 61 and external camera 62.

The main body camera 61 and the external camera 62 are not particularly limited, and 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, the subject P is less likely to be aware of the presence of the main body camera 61, and smoother photographing is possible.

Further, in this embodiment, one main body camera 61 and one external camera 62 are installed. However, it is not limited to this, and two or more units may be provided. Furthermore, if a stereo camera is used for these, it is possible to take a three-dimensional image of the face and whole body of the subject P, and it is necessary to input the position information of the main body camera 61 and external camera 62 into the main body 10 in advance. No matter where the examinee P is located, the positional relationship (distance) between the examinee P and the main body 10 can be acquired with high accuracy, and the dimensional information of the examinee P can be obtained with higher precision. It can be calculated.

An example of the operation of the ophthalmologic apparatus 1 according to the first embodiment configured as described above will be described with reference to the flowchart of FIG. 4. The operation of the flowchart shown in FIG. 4 is started when the ophthalmologic apparatus 1 is powered on and the examiner operates the automatic adjustment button B12. Further, in the following description, it is assumed that the examiner measures the eye E to be examined while assisting the examinee P beside the examinee P.

First, when measuring the characteristics of the eye E of the subject P, the examiner turns on the power of the ophthalmologic apparatus 1 (the ophthalmologic apparatus main body 2, the optical table 30, and the elevating chair 50). As a result, the ophthalmologic apparatus 1 is started, and the main control section 17 executes the program stored in the internal memory 17a to initialize each section.

During this initial setting, the main control section 17 controls and drives the XYZ drive mechanism/drive circuit 16, the drive mechanism 25, the table lifting mechanism 32, and the driving section 52c of the chair lifting mechanism 52. A reset operation may be performed to move the support section 20, optical table 30, and elevating chair 50 to their initial positions. Alternatively, such a reset operation may be performed by receiving an 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 imaging position G, the main body camera 61 captures a facial image of the subject P, either by inputting an imaging instruction by the examiner on the operation unit 19 or automatically. (Step S1), the external camera 62 photographs a whole body image of the subject P (Step S2). Images taken by the main body camera 61 and external camera 62 are sent to the main control unit 17 as image signals.

The main control unit 17, which has received the image signal, analyzes the facial image in step S3, and moves from the chin C of the subject P to the eye E to be examined based on the distance information and current position information of the main body camera 61. 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 buttocks D of the subject P to the eye E to be examined based on the position information of the external camera 62. At this time, the height of the eye E to be examined 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 with higher accuracy.

Next, in step S4, the main control unit 17 superimposes the values of the height AL and the pupillary distance PD on the facial image photographed by the main body camera 61, and displays the result in the first subject image display area 40g1. The numerical values of height AH and height BH are superimposed on the whole body image photographed by the external camera 62 and displayed in the second subject image display area 40g2. In addition, in this embodiment, the facial image and the whole body image are displayed in a non-measurement state. On the other hand, as another different embodiment, dimension information may be superimposed and displayed on images taken in real time by the main body camera 61 and the external camera 62. As a result, each image in a non-measurement state with dimension information superimposed on it and the image in a measurement state in which dimension information is superimposed are displayed depending on the photographing timing. Alternatively, if it is not necessary to display 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 settings, etc.). You can also do that.

Next, in step S5, when the subject P sits on the elevating chair 50, the subject's eye E is measured using the measurement optical system 15 of the measurement head 12 in an appropriate and comfortable posture without rounding the back. The main control unit 17 calculates a suitable height (height from the floor F) of the optical table 30 based on the height BL so that the optical table 30 is located within the allowable range. Furthermore, in the case of a child or the like who is short in stature, the measurement may be performed in a standing state, so in this case, a suitable height of the optical table 30 in a standing state is calculated. Furthermore, if the height is excessively short, measurements may be taken while standing on a step stool, etc. In this case, the suitable height of the optical table 30 is calculated in consideration of the height of the step stool. Furthermore, in the case of using a wheelchair, a suitable height of the optical table 30 while sitting in the wheelchair is calculated.

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

In step S6, the table control unit 33 controls and drives the drive unit 32c of the table lifting mechanism 32 according to the movement information to raise and lower the top plate 31, thereby adjusting the height of the optical table 30. Further, when adjusting the height of the elevating chair 50, the chair control section 53 controls and drives the driving section 52c of the chair elevating mechanism 52 according to the movement information, thereby elevating the seat surface 51.

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

Next, the process advances to step S9 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 E to be examined. Therefore, in step S9, the main control unit 17 calculates the position of the right eye E to be examined in the X-axis direction with respect to the main body 10 based on the interpupillary distance PD of the left and right eyes E to be examined, and uses this position information. Based on this, movement information such as the movement direction and 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 perform position adjustment.

As described above, the positions of the optical table 30, chin rest 22, and measurement head 12 are adjusted, so the subject P sits on the elevating chair 50, puts his forehead H on the forehead rest 24, and places his chin C on his chin. When placed on the receiving portion 22, the subject P can face the ophthalmological apparatus 1 in an appropriate and comfortable measurement posture without rounding the back or unnaturally extending or contracting the neck.

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

Note that if the eye E to be examined is not located within the measurement tolerance 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 etc.

By these operations, an 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 directions. Calculate 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) (determination in step S12 is YES), it is not possible to move the measurement head 12 with respect to the eye E to be examined. 12 height adjustment may not be possible. In this case, the process advances to step S13 to perform correction by adjusting the heights of the optical table 30 (lifting chair 50) and the face support section 20.

On the other hand, if the determination in step S12 is NO, it is assumed that the alignment between the eye E and the measurement optical system 15 has been completed, and the process skips steps S13 and S14 and 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 E and the measurement optical system 15, and the table control unit Send on 33rd. In this case as well, if sufficient adjustment cannot be made by moving the optical table 30, movement information for the elevating chair 50 may be calculated in order to adjust the height of the elevating chair 50 together with the optical table 30.

Furthermore, based on the movement information of the optical table 30 (and/or the elevating chair 50), movement information of the chin rest 22 is determined. Specifically, when the optical table 30 is raised, the chin rest 22 is lowered by the distance that it has been raised, and when the optical table 30 is lowered, the chin rest 22 is raised by the distance that it has been lowered. It is preferable that the optical table 30 and the chin rest 22 move up and down at a constant speed 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 lift mechanism 32 (and/or the chair control unit 53 controls the drive unit 52c of the chair lift mechanism 52) in accordance with the movement information, and The plate 31 (and/or the seat surface 51) is raised and lowered. Simultaneously with this elevation, the main control section 17 controls the drive mechanism 25 in accordance with the movement information to move the chin rest 22 in the vertical direction.

Through this process, the measurement head 12 moves up and down together with the optical table 30 etc., and the chin rest 22 moves in the opposite direction by the same amount and at a constant speed. The position does not change. Therefore, the height of the measurement head 12 can be adjusted to match the eye E of the patient P while being stably supported by the chin rest 22 without causing discomfort to the patient P.

After the height is appropriately adjusted by raising and lowering the optical table 30 and moving the chin rest 22, the process advances to step S15. In step S15, the main control unit 17 controls the XYZ drive mechanism/drive circuit according to the movement information calculated in step S11, or in accordance with the movement information newly calculated based on the anterior segment image Gf when the position is adjusted in steps S13 and S14. 16 to perform alignment.

When the alignment is completed, the process advances to step S16, and the eye characteristics of the eye E to be examined are measured. For example, when the corneal bright spot image P1 enters the target area mark 40e due to alignment and the output value of the corneal bright spot image P1 exceeds a predetermined value, or when an operation input signal of the start button B9 is received, the main control The unit 17 controls the measurement optical system 15 to measure the eye characteristics of the eye E to be examined. The main control section 17 displays the measurement results on the display screen 40 (see FIG. 6), and prints the measurement results and further dimension information when there is an instruction to operate the printout button. Therefore, the examiner, etc. can not only check the measurement results, but also be able to check the dimensional information displayed in the first and second patient image display areas 40g1 and 40g2, with the dimensional information appropriately calculated in the correct measurement posture. You can check whether the measurement was successful or not.

When subsequently measuring the ocular characteristics of the left eye to be examined 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 examined is completed, the process advances to step S17. In this step S17, the main control unit 17 provides measurement results and dimensional information including height information of the subject P (e.g. height, height AL from chin C to subject's eye E, height AL from buttocks D to subject's eye E). height BL, interpupillary distance PD, etc.) are stored in the storage unit 18 in association with the ID. Further, a facial image or a whole body image photographed by the imaging section 60 may be stored in the storage section 18 in association with the ID. In addition, when it is not necessary to memorize the dimensional information, the ophthalmological apparatus 1 is installed in a commercial facility or a special venue, and an unspecified number of subjects P measure the eye characteristics, and the measurement results and dimensional information are stored privately. When discarding as information, the program may be controlled to skip step S17 and end.

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

Therefore, it is possible to provide an ophthalmologic apparatus 1 that can appropriately and quickly perform height adjustment and other positional adjustments of each part with respect to the eye E to be examined, thereby improving measurement efficiency.

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, a facial image and a whole body image of the subject P can be photographed almost simultaneously, improving processing efficiency in the main control unit 17, and calculating dimensional information with higher accuracy. Note that either one of the main body camera 61 and the external camera 62 may be installed, and the dimensional information can be obtained based on the image taken by only one, making the ophthalmological apparatus 1 simpler and cheaper. can.

Further, in the first embodiment, the main control unit 17 calculates the interpupillary distance PD of the left and right eyes to be examined based on the image, and adjusts the horizontal position based on the calculated interpupillary distance PD. The movement of the measurement head 12 is controlled. Thereby, the measurement head 12 can be made to face each of the left and right eyes E to be examined with high accuracy, and the measurement efficiency can be further improved.

Further, in the first embodiment, the XYZ drive mechanism/drive circuit 16 moves the measurement head 12 at least in the vertical direction, the drive mechanism 25 moves the face support section 20 at least in the vertical direction, and the optical table 30 moves at least in the vertical direction. A table lifting mechanism 32 for moving the table. The main control unit 17 controls these based on height information. Thereby, the measurement head 12, face support section 20, and optical table 30 can be moved vertically more smoothly and quickly.

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

Furthermore, the first embodiment includes an elevating chair 50 on which the subject P sits, and a chair elevating mechanism 52 that moves the elevating chair 50 at least in the vertical direction. The main control unit 17 controls the chair elevating mechanism 52 to move the elevating chair 50 at least in the vertical direction based on the height information. Thereby, the height of the elevating chair 50 can be adjusted to a height corresponding to the height of the subject P. Furthermore, when the height adjustment of the optical table 30 etc. is not sufficient, by adjusting the height of the elevating chair 50 together with the optical table 30, a more comfortable height can be achieved without putting a burden on the subject P. It is possible to adjust the

Moreover, if the face support part 20 has at least one of the chin rest part 22 that supports the chin C of the subject P, and the forehead rest part 24 that supports the forehead H of the subject P, the subject The face of person P can be stably supported. In the first embodiment, since it has both the chin rest part 22 and the forehead rest part 24, the face of the subject P can be supported more stably, and more efficient and highly accurate measurement can be performed. It becomes possible.

The first embodiment also includes a storage section 18 that stores dimension information. As a result, for example, at the time of the next medical examination or examination, the dimension information of the subject P is acquired from the storage unit 18, and based on this, the optical table 30, elevating chair 50, face support unit 20, and measurement head 12 are adjusted. It can be configured to perform position adjustment including height adjustment. Therefore, there is no need to take another image with the imaging unit 60 or calculate the dimension information again with the main control unit 17, and the position of the ophthalmological apparatus 1 can be adjusted more easily and quickly, allowing more efficient measurement. It becomes possible. In addition, the physical burden on the subject P due to re-imaging, etc. can also be reduced.

Furthermore, when at least one of the measurement head 12, the face support section 20, and the optical table 30 is moved, but the eye E to be examined is not located within the measurement tolerance range of the measurement head 12, that is, the eye E to be examined is not located in the display area 40a. , the anterior segment image Gf for alignment may not be displayed appropriately. This situation occurs, for example, when the posture at the time of image capture is poor and there is an error in acquiring dimension information. In this case, the main control unit 17 recalculates the dimension information including the height information of the predetermined part of the subject based on the facial image and the whole body image, and calculates at least the height information based on the recalculated dimension information. It is preferable to control the movement of at least one of the measurement head 12, face support 20, and optical table 30 again so as to adjust the position in the horizontal direction (feedback loop control). By controlling in this manner, the measurement optical system 15 can be aligned with the eye E with higher precision.

(Modified example)
By the way, in the first embodiment, the examiner is near the subject P, and by operating the display screen 40, the examiner performs photographing by the imaging unit 60, alignment, measurement of eye characteristics, etc. However, in other different embodiments (modifications), all operations may be performed automatically. For example, when the subject P stands at the photographing position G, the subject P is recognized by a human sensor or a face recognition function, and the imaging unit 60 is configured to capture an image. Then, the main control unit 17 that receives this image calculates dimensional information and performs height adjustment and position adjustment of the optical table 30 and the like. Next, when it is detected by image analysis etc. that the subject P is ready for measurement, the main control section 17 controls the XYZ drive mechanism/drive circuit 16 to execute alignment. When the alignment is performed normally, 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 examined. Thereby, even without an examiner, everything from positioning of the ophthalmological apparatus 1 to measurement can be performed automatically, and it is possible to provide an ophthalmological apparatus 1 that can be so-called unmanned or automated.

Moreover, as a further different embodiment, the monitor section 14 may be made detachable, and the monitor section 14 may be held and operated by the examiner. Further, separate from the monitor unit 14, a controller such as a tablet terminal, an information terminal such as a smartphone, a dedicated terminal, etc. is provided with an operation unit 19 such as a touch panel or a keyboard, and the display of the monitor unit 14 is displayed on the display unit of this controller. The same operation screen as screen 40 may be displayed. In this case, the examiner can hold the monitor unit 14 and the controller and operate them while visually checking the condition of the subject P from a desired direction. In addition, even if the examiner is not near the patient P, the ophthalmological device 1 can be operated in a remote location such as a separate room, reception desk, or even a management center. 1 can be provided. Even in this case, by visually checking the facial image, whole body image, and size information displayed in the first patient image display area 40g1 and the second patient image display area 40g2, it is possible to check whether the position adjustment has been appropriately performed. You can check whether

In the first embodiment, the body camera 61 captures a facial image of the subject P, the height AL from the chin C of the subject P to the subject's eye E is calculated, and the external camera 42 captures a facial image of the subject P. A full-body image is taken, the height is calculated, and the height BL from the seat surface (buttocks) to the eyes is calculated based on the height, but the invention 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 chin to the eyes is calculated based on the facial image of the subject P photographed by the main body camera 61. The height BL from the seat surface to the eyes may be calculated based on statistical information related to human body size such as height. Alternatively, only the external camera 62 is provided, and the height of the patient P is calculated based on the whole body image of the patient P taken by the external camera 62, and the height AL from the chin to the eyes 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, chin C, and buttocks D from the whole body image, and calculate the height AL and the height BL.

Further, by adjusting the mounting position and viewing angle of the main body camera 61, it is also 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. In addition, by changing the magnification of the external camera 62, a whole body image and a face image of the subject P are taken, and 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.

In addition, the ophthalmological apparatus 1 is connected to other ophthalmological apparatuses via a communication network, and the main control unit 17 associates the calculated dimension information with the subject P and sends it to the other ophthalmological apparatuses. , it is also possible to configure the size information to be shared by a plurality of ophthalmological apparatuses. As a result, other ophthalmological equipment can adjust the position of each part based on the dimensional information calculated by the ophthalmological equipment 1, eliminating the need for other ophthalmological equipment to take images or calculate dimensional information, resulting in efficient This enables precise position adjustment and measurement.

(Second embodiment)
Next, an ophthalmologic apparatus 1A according to a second embodiment will be described with reference to FIG. 7. FIG. 7 is a perspective view showing the appearance of an ophthalmologic apparatus 1A according to the second embodiment. The ophthalmologic apparatus 1A according to the second embodiment shown in FIG. 7 is an optometry apparatus that includes a refractor head (measuring section) 70 as a main body and an optotype presentation device 71. The ophthalmological apparatus 1A includes the refractor head (measuring section) 70, an optotype presentation device 71, an ophthalmological apparatus main body 2A having a forehead support section 24A as a face support section, and an optical table 30A that supports the refractor head 70. , an elevating chair 50, an imaging section 60, and a controller 72.

The refractor head 70 is a pair of two units arranged side by side, corresponding to the left and right eyes E of the subject P, and is arranged between the optotype presentation device 71 and the subject P. It is suspended and supported via an arm 74 from a support 73 that stands up from the optical table 30A. The arm 74 is provided with a forehead rest 24 movable in the vertical direction (Y-axis direction) and further in the front-rear direction (Z-axis direction) at the center of the pair of refractor heads 70. .

The arm 74 is configured to rotate around the pillar 73 and move vertically along the pillar 73 under the control of the controller 72 . Therefore, the support column 73 and the arm 74 function as a measurement unit moving mechanism that adjusts the height of the refractor head 70. In addition to the vertical movement of the top plate 31, the height of the refractor head 70 can be adjusted by vertically moving the arm 74.

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

In addition, since the table lifting mechanism 32 is provided on one side of the top plate 31, the space below the top plate 31 can be widened and the feet of the patient P can be placed, making it easier for the patient P to move. Can be measured in a comfortable posture. In addition, measurement in a wheelchair becomes easy.

In the second embodiment, a main body camera 61a of the imaging section 60 is installed on the top of the optotype presentation device 71. This main body camera 61a can 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 a wall surface or the like. Alternatively, an external camera may be installed in place of the main body camera 61a.

By the way, in the case of the ophthalmological apparatus 1A as in the second embodiment, the subject P who has entered the examination room or the like moves around from the optotype presentation device 71 side to the front of the optical table 30A, and moves to the elevating chair 50. Sometimes I sit down. Utilizing such a flow line of the subject P, as another different embodiment, as shown by the imaginary line in FIG. A main body camera 61b may be installed. If the patient P is photographed when the patient P enters the examination room, etc., the height of each part of the ophthalmological apparatus 1A will be adjusted based on the dimension information by the time the patient P sits on the elevating chair 50. It is possible to perform the lens adjustment, the position adjustment of the left and right refractor heads 70 according to the interpupillary distance PD, etc., and the eye examination can be performed more quickly and efficiently.

The controller 72 is composed of a notebook personal computer equipped with an operation section 19 such as a touch panel, keyboard, mouse, etc. and a monitor section 14, a tablet terminal, a mobile terminal (information processing device) such as a smartphone, a controller dedicated to optometry, and the like. . The controller 72 controls the entire operation of the ophthalmological apparatus 1A, including the refractor head 70, the optotype presenting device 71, the optical table 30A, and the elevating chair 50.

Similarly to the first embodiment, in the ophthalmological apparatus 1A having the above-described configuration, the height from the eye E to the forehead H of the patient P is determined by analyzing the image of the patient P taken by the imaging unit 60. Various dimensional information such as the height BL from the buttocks to the eye E to be examined and the interpupillary distance PD can be obtained. By adjusting the positions of the refractor head 70, optical table 30A, elevating chair 50, forehead rest 24, and refractor head 70 based on this dimensional information, the subject P can sit on the elevating chair 50 and By simply butting the forehead H against the abutting portion 24, the user can assume a comfortable and appropriate measurement posture, and can immediately perform an eye examination. In this way, positional adjustments such as height adjustment and horizontal position adjustment of the refractor head 70 (measuring unit) with respect to the eye E to be examined can be appropriately and quickly performed, thereby improving optometry efficiency.

(Third embodiment)
Next, an ophthalmologic system SY according to a third embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is a diagram showing a block configuration of an ophthalmologic system SY according to the third embodiment. FIG. 9 is a plan view showing an example of the floor plan of a medical institution 100 in which the ophthalmological apparatuses 1 to 1C of the ophthalmological 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 examination room 104, an operating room 105, a medical office 106, and a treatment room 107. etc.

In the ophthalmological system SY of this embodiment, each examination room 102 is equipped with an ophthalmological apparatus 1B consisting of, for example, a slit lamp, and the examination room 103 is equipped with an ophthalmological apparatus 1B consisting of, for example, an autorefker keratometer according to the first embodiment. An ophthalmological apparatus 1A consisting of an optometry apparatus according to the second embodiment is installed. In the dark room examination room 104, an ophthalmological apparatus 1C consisting of, for example, a fundus photographing apparatus is installed. However, the ophthalmological equipment installed in each room is not limited to these.

The ophthalmologic apparatuses 1B and 1C also include an ophthalmologic apparatus main body having a main body (measuring section) and a face support section, an optical table, a main control section, etc., and those that perform measurements in a sitting position are also equipped with an electric chair. Further, in the reception area 101 and the like, a controller 72 is installed which can input operation instructions and the like to the management server 80 and each of the ophthalmological apparatuses 1 to 1C.

Each of the ophthalmological apparatuses 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 ophthalmological apparatus 1 are managed by the management server 80. In this embodiment, the control unit of the management server 80 functions as a main control unit 17' that calculates dimensional information of the subject P by image analysis and controls each ophthalmological apparatus 1 to 1C to perform position adjustment. . The management server 80 also includes a storage unit 18' etc. in which statistical data, calculated dimension information, measurement results, etc. are stored.

In this embodiment, the external camera 62 (imaging unit 60) of the first embodiment is installed on the wall W of the hallway 109 from the waiting room 108 to each examination room 102. The photographed image of the subject P taken by this external camera 62 is sent to the management server 80 via the communication network N, and is used for position adjustment of each part of each of the ophthalmological apparatuses 1 to 1C. In other words, the external camera 62 is shared by each of the ophthalmological apparatuses 1 to 1C. Note that the facial image of the subject P may be photographed with the main body cameras 61, 61a of the ophthalmological apparatuses 1, 1A, and based on this, the ophthalmological apparatuses 1, 1A may perform more precise position adjustments of each part, The facial image may be sent to the management server 80 so that it can be used by other ophthalmological apparatuses 1B and 1C.

In the ophthalmological system SY having such a configuration, when the patient P heads to the examination room 102 or the examination room 103, the external camera 62 takes a full-body image of the patient P and sends it to the management server 80. This imaging may be performed, for example, by an examiner (such as a receptionist) inputting an imaging instruction from the controller 72 of the reception desk 101. Alternatively, a human sensor may be attached to the external camera 62, and the detection may be performed when the subject P approaches within the range of the human sensor, or the external camera 62 may use the facial recognition function to It may also be done when it is detected.

Upon receiving the image signal from the external camera 62, the main control unit 17' of the management server 80 performs image analysis, and based on the analysis result and statistical data in the storage unit 18', the chin C of the subject P is determined. The height AL from to the eye E to be examined, the height BL from the buttocks to the eye E to be examined, the interpupillary distance PD, and other dimensional information are calculated. Based on this dimensional information, movement information such as the movement direction, movement amount, and movement speed of the measuring section, face support section, optical table, and lifting chair suitable for each of the devices 1 to 1C is calculated, and the communication network N The data is sent to each of the ophthalmological apparatuses 1 to 1C via.

Movement information may be calculated and sent to all the ophthalmological apparatuses 1 to 1C, but the subject P selects only the ophthalmological apparatus to be measured, and the movement information of the selected ophthalmic apparatus is transmitted to the main control unit. 17' may be calculated and sent. For example, a doctor or a person receiving instructions from a doctor may select an ophthalmologic device using a controller or the like, or the management server 80 may automatically select an ophthalmologic device based on input data of an electronic medical record.

Each of the ophthalmological apparatuses 1 to 1C that has received the movement information adjusts the positions of the measurement section, face support section, optical table, and elevating chair according to this movement information. As a result, the subject P can simply sit on the elevating chair 50 in the examination room 102, the examination room 103, etc. (in the case of an ophthalmological device that measures in a standing position, simply stand in front of it), You can face the ophthalmological equipment in an appropriate and comfortable measurement posture. Therefore, it becomes possible to measure eye characteristics more quickly and more efficiently.

Further, in the case of such remote control, the condition of the subject P etc. cannot be directly observed. However, the display screen of the controller 72 is configured to display a screen as shown in FIG. By visually checking the images, it can be confirmed whether these images were taken and the dimensional information was properly acquired. Furthermore, if the facial image and whole body image in the measurement state are displayed, it can be confirmed whether the position of the ophthalmological device 1 has been properly adjusted, and if the measurement posture is inappropriate, it can be displayed in the non-measurement state. The patient P can be instructed to start over from the shooting.

Furthermore, the management server 80 stores the acquired images, calculated dimension information, and movement information corresponding to each of the ophthalmological apparatuses 1 to 1C in the storage unit 18' in association with, for example, the ID of the subject P. You can also do it. Alternatively, this information can also be stored in the storage section 18 of each of the ophthalmological apparatuses 1 to 1C. Thereby, the next time the patient P visits the doctor, by inputting the ID using the controller 72, information about the patient P can be acquired from the storage units 18, 18'. Therefore, the positions of the respective parts of the ophthalmological apparatuses 1 to 1C can be adjusted more quickly based on the acquired information without having to take another picture with the imaging unit 60 or calculate the dimension information. In addition, the physical burden on the subject P due to re-imaging, etc. can also be reduced.

Further, it is not necessary to provide the management server 80, and the ophthalmologic apparatuses 1 to 1C may be configured to be able to send and receive dimension information and other information to and from each other via the communication network N. Thereby, size information and the like can be shared between the ophthalmological apparatuses 1 to 1C, and the position adjustment of each part in each of the ophthalmological apparatuses 1 to 1C can be performed more quickly.

Although the embodiments of the present disclosure have been described above in detail with reference to the drawings, each of the above embodiments is merely an illustration of the present disclosure, and the present invention is not limited to the configurations of each of the above embodiments. . It goes without saying that even if there are changes in the design that do not depart from the gist of the present disclosure, they are still included in the present disclosure.

Further, in each of the above embodiments, the measurement head 12 is movable in the XYZ directions, and the measurement head 12, the optical table 30, and the face support part 20 are moved according to the dimensional information, but the present invention is not limited to such a configuration. There's nothing wrong with that. For example, even in an ophthalmological apparatus in which the measurement section does not move, the measurement section can be appropriately positioned with respect to the eye E by adjusting the positions of the optical table 30 and the face support section 20.

Further, in each of the embodiments described above, the external camera 62 is installed on the wall surface W on the side of the subject P, but the external camera 62 is not limited to this. If it is possible to obtain an image that can obtain the height of the patient P, etc., the front of the ophthalmological apparatus body 2 (i.e., the back side of the patient P) or the back of the ophthalmological apparatus main body 2 (i.e., the front side of the patient P). side). Furthermore, as shown by the imaginary lines in FIG. 1, it may be installed in a position where images can be taken from diagonally forward to the left or right of the subject P, such as the chin C, forehead H, buttocks D, etc. of the subject P. It is also possible to obtain a whole-body image including the left and right eyes E to be examined. Further, there is no need 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 by hanging it from the ceiling.

Further, in each of the embodiments described above, the main body cameras 61 and 61a are installed on the upper surface of the main body section 10, but the present invention is not limited to this. For example, it may be installed near the chin rest 22, above the forehead rest 24, on the side of the support 23, on the side of the main body 10, etc. When installed on the side of the support column 23 or main body 10, it is possible to capture not only facial images but also whole-body images by adjusting the viewing angle and magnification. It is desirable to install it at an appropriate position depending on the function, purpose of use, etc. of the ophthalmological apparatus 1.

Furthermore, in each of the above embodiments, the imaging unit 60 photographs the subject P in a non-measurement state (non-measurement posture), but the subject P in a measurement state (measurement posture) after position adjustment is also photographed. It may also be configured to take pictures and monitor the condition of the subject P. With this configuration, for example, if the examiner visually recognizes the photographed image displayed on the display surface 40 and finds that the chin C or forehead H is far from the face support part 20 or that the examiner is in a cramped posture with his or her neck bent, , the examiner operates the chin rest up and down movement button B3 to move the chin rest 22 upward. On the other hand, when the chin rest 22 is too high and the subject P is in a position where the neck is forcibly stretched, the chin rest is moved downward. In addition, if the distance between the optical table 30 and the elevating chair 50 is far, making the measurement posture impossible, ask the subject P to adjust the front and rear positions of the elevating chair 50 directly or through a microphone, etc. can be instructed. Such position adjustment allows the subject P to perform measurements in an appropriate and comfortable measurement posture with less burden. This is particularly effective in cases where the examiner cannot directly view the posture of the subject P, such as at a reception desk or in a remote location.

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 main control unit 17 automatically moves the chin rest 22 under the control of the main control unit 17. It is also possible to adopt a configuration in which the adjustment is made, and the subject P can easily and comfortably perform the measurement even if there is no one present.

Further, as another different embodiment, a detection unit that detects whether or not a face is supported by the face support unit 20 may be provided. Examples of the detection section include a pressure sensor, a photo sensor, a magnetic sensor, a switch, etc. that detect the contact of the forehead H or chin C with the face support section 20. Further, if the configuration is such that the contact state between the face support section 20 and the face is detected based on the image photographed by the imaging section 60, the imaging section 60 can also function as a detection section. When the detection unit confirms that the face of the subject P is appropriately supported by the face support unit 20, alignment, measurement, etc. can be started under the control of the main control unit 17. Unmanned operation and automation become possible.

Further, in each of the embodiments described above, the main control unit 17 analyzes the whole body image or facial image photographed by the imaging unit 60 to detect the subject's eye E, chin C, buttocks D, and the like. On the other hand, as another different embodiment, for example, a captured whole body image or facial image is displayed on the display surface 40, and the examiner performs a touch operation on the subject's eye E, jaw C, buttocks D, etc. By indicating the positions of these parts, the detection accuracy of these parts can be further improved, and dimensional information such as the heights AL, BL, and interpupillary distance PD can be calculated with higher accuracy.

1, 1A, 1B, 1C Ophthalmological device 10 Main body 18, 18' Storage section 20 Face support section 22 Chin rest section 24, 24A Forehead rest section 30, 30A Optical table 60 Imaging section 73 Support column 74 Arm AL, BL Height C Chin D Buttocks E Examinee's eye H Forehead N Communication network P Examinee PD Pupillary distance SY Ophthalmic system

Claims (10)

a main body having a measurement unit that acquires information about the subject's eye;
a face support part that supports the subject's face;
an optical table on which the main body is placed;
an imaging unit that acquires an image of the subject;
a display section on which the image is displayed;
a control unit that controls operations of the measurement unit, the face support unit, and the optical table;
The imaging unit acquires the image of the subject whose face is not supported by the face support unit and is located at a predetermined distance from the main body,
The control unit is configured to obtain dimension information including height information of a predetermined region of the subject based on the image acquired by the imaging unit before the subject places the face on the face support unit. The measurement section, the face support section, and the optical system are configured to calculate and superimpose the dimensional information on the image and display it on the display section , and to adjust the position at least in the height direction based on the calculated dimensional information. An ophthalmological device characterized by controlling movement of a table. The imaging unit includes a main body camera installed on the upper surface of the main body to obtain a facial image of the subject, and an external camera installed at a predetermined distance from the main body to obtain a whole body image of the subject. The ophthalmological apparatus according to claim 1, further comprising a camera. The control unit analyzes the facial image and the whole body image to calculate the height information and the dimension information including the interpupillary distance between the left and right eyes to be examined, and superimposes at least the interpupillary distance on the facial image. and displaying the whole body image in a first subject image display area of the display unit, and superimposing at least the height information on the whole body image and displaying it in a second subject image display area of the display unit. The ophthalmologic device according to claim 2, characterized in that: The control unit calculates an interpupillary distance between the left and right eyes of the subject based on the image before the subject places the face on the face support unit, and based on the calculated interpupillary distance, The ophthalmologic apparatus according to any one of claims 1 to 3, characterized in that movement of the measurement unit is controlled so as to adjust the position in the horizontal direction. 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 4, wherein the control unit controls the measuring unit moving mechanism, the face support unit moving mechanism, and the table moving mechanism based on the height information. The ophthalmological device described in . If the eye to be examined is not located within the measurement tolerance range of the measurement unit as a result of moving at least one of the measurement unit, the face support unit, and the optical table, the control unit may The measurement unit and the face support are configured to recalculate dimension information including height information of a predetermined region of the subject, and adjust at least the position in the height direction based on the recalculated dimension information. The ophthalmologic apparatus according to any one of claims 1 to 5, wherein movement of at least one of the optical table and the optical table is controlled again. 7. The height information includes the height of the subject, the height from the buttocks to the subject's eyes, and the height from the chin to the subject's eyes. Ophthalmology equipment. The subject includes a chair on which the subject sits, and a chair moving mechanism that moves the chair at least in the vertical direction, and the control unit controls the subject before the subject places the face on the face support. The ophthalmologic apparatus according to any one of claims 1 to 7, wherein the chair moving mechanism is controlled to move the chair at least in an up-down direction based on height information. The ophthalmologic apparatus is connected to another ophthalmologic apparatus via a communication network, and the control unit associates the calculated dimension information with the subject and sends it to the other ophthalmologic apparatus. The ophthalmological device according to any one of claims 1 to 8, wherein: The ophthalmologic apparatus includes the ophthalmologic apparatus according to any one of claims 1 to 9, and a server connected to the ophthalmologic apparatus via a communication network, wherein the control unit of the ophthalmologic apparatus transmits the calculated dimension information, sending it to the server in association with the subject, the server making the dimensional information associated with the subject available for use by another ophthalmological apparatus connected via the communication network; An ophthalmological system characterized by storing information in a memory unit.