JP2022144295A - Ophthalmologic device - Google Patents

Abstract

To provide an ophthalmologic device capable of executing movement support control for a face support part on the basis of the position of an eye to be examined recognized appropriately.SOLUTION: An ophthalmologic device includes: a measurement head 12 for measuring examination information on an eye E to be examined; a face support part 20 for supporting the face of a subject P, which is movably provided with respect to the measurement head 12; a wide angle camera 60 for capturing a face image M including the right and left eyes E to be examined of the subject P supported by the face support part 20; a touch panel type monitor part 14 for displaying the face image M captured by the wide angle camera 60, and receiving a touch operation for the face image M; and a main control part 17 for executing support control for the movement of the face support part 20 with the touch operation received by the monitor part 14 as input information.SELECTED DRAWING: Figure 3

Description

The present invention relates to an ophthalmic device.

2. Description of the Related Art Conventionally, an ophthalmologic apparatus is known that captures an image of a subject's face including left and right eyes and displays the captured face image on a monitor unit (see Patent Documents 1 and 2, for example).

JP-A-10-216089 JP 2017-196305 A

However, in the conventional ophthalmologic apparatus, a photographing means (camera) for photographing a face image is installed in the vicinity of a measurement head for measuring the subject's eye. Therefore, the image capturing the face image becomes a wide-angle image, and the image of the eye to be inspected is relatively small, so it is difficult to properly recognize the position of the eye to be inspected and move the face support portion.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ophthalmologic apparatus capable of performing movement support control of a face support unit based on an appropriately recognized position of an eye to be examined.

In order to achieve the above object, the ophthalmologic apparatus of the present invention comprises a measuring head for measuring an eye to be examined of a subject; a wide-angle camera for photographing a face image including the left and right eyes of the subject supported by the face support; displaying the face image photographed by the wide-angle camera; A touch panel type monitor unit that receives a touch operation, and a control unit that performs support control for movement of the face support unit using the touch operation received by the monitor unit as input information.

Therefore, in the ophthalmologic apparatus of the present invention, movement support control of the face support section can be performed based on the appropriately recognized position of the subject's eye.

1 is a perspective view showing the appearance of an ophthalmologic apparatus of Example 1. FIG. 1 is a side view showing the appearance of an ophthalmologic apparatus of Example 1. FIG. 2 is a block configuration diagram showing a control system in the ophthalmologic apparatus of Example 1. FIG. 5 is a flow chart showing a procedure for measuring examination information using the ophthalmologic apparatus of Example 1. FIG. 5 is a flow chart showing a procedure for measuring examination information using the ophthalmologic apparatus of Example 1. FIG. FIG. 10 is a diagram showing a display example of a display screen when a face image is displayed on the monitor section; FIG. 10 is a diagram showing another display example of the display screen when the face image is displayed on the monitor section; FIG. 10 is a diagram showing a display example of a display screen when an examiner designates the position of an eye to be examined on a face image; FIG. 10 is a diagram showing a display example of a display screen when rough alignment is completed; FIG. 4 is an explanatory diagram showing the positional relationship in the ZY direction between the wide-angle camera and the subject's eye before coarse alignment; FIG. 10 is a diagram showing a display example of a display screen when indicating a movement distance and a planned movement distance of the chin rest.

A mode for carrying out the ophthalmologic apparatus of the present invention will be described below based on Embodiment 1 shown in the drawings.

(Example 1)
The ophthalmologic apparatus 1 of Example 1 has two measurement heads, an autorefractometer, an autokeratometer, a non-contact tonometer, and a corneal thickness measurement, and measures four types of examination information of the eye to be examined. It is possible. The ophthalmologic apparatus 1 of Example 1 is generally called an "auto keratorefractotonometer".

In this specification, the X-axis, Y-axis and Z-axis are taken as shown in each figure, and the left-right direction in FIG. The positive direction is backward, the negative direction is forward) and the vertical direction (the positive direction of the Y axis is upward, the negative direction of the Y axis is downward, and the height direction). conduct. Further, the subject P side (Z-axis negative direction) is the front side of the ophthalmic apparatus 1, the side facing the subject P (Z-axis positive direction) is the back side of the ophthalmic apparatus 1, and the subject P right side (X-axis 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 ophthalmic apparatus 1 .

As shown in FIGS. 1 and 2, the ophthalmologic apparatus 1 includes an ophthalmologic apparatus main body 2 having a main body portion 10 and a face support portion 20, an optical table 30 on which the ophthalmologic apparatus main body 2 is placed, and a subject P. and an examination chair 50 to sit on. Both the top plate 31 of the optical table 30 and the seat surface 51 of the examination chair 50 can be moved up and down. The ophthalmologic apparatus 1 further includes a wide-angle camera 60 that captures a facial image M including the left and right eyes E of the subject P, a monitor unit 14 that displays the facial image M captured by the wide-angle camera 60, and an ophthalmologic apparatus. A main control section 17 (control section) for controlling each section of the apparatus such as the main body 2 and the optical table 30 is provided.

The body portion 10 has a base portion 11, a measurement head 12, a monitor portion 14, an operation portion 19, a wide-angle camera 60, and a main control portion 17. The base portion 11 and the measurement head 12 are It is covered with a cover member 13 .

As shown in FIG. 2, the base portion 11 incorporates a known XYZ driving mechanism/driving circuit 16 (measuring head driving mechanism) as a moving mechanism for driving the measuring head 12 in the X, Y, and Z directions. .

The measurement head 12, as shown in FIG. 2, is arranged below the CT measurement head 12a for measuring the intraocular pressure and corneal thickness of the left and right eyes E of the subject P, and the CT measurement head 12a. It is a compound measuring head having a KR measuring head 12b for performing reflex measurement and keratometry for each of the right and left eyes of a subject P.

Here, "reflection measurement" refers to measuring the spherical refractive power, cylindrical refractive power, and astigmatism axis angle of the eye E to be examined. "Keratometry" refers to measuring the corneal curvature radius, corneal refractive power, corneal astigmatism degree, and corneal astigmatism axis direction of the eye E to be examined. In the "intraocular pressure measurement", air is blown to the eye E to be examined, and the intraocular pressure of the eye E to be examined is measured. In addition, since the measured value of the intraocular pressure is affected by the corneal thickness, the corneal thickness is measured when the intraocular pressure of the eye E to be examined is measured. The ophthalmologic apparatus 1 may have a function of calculating an intraocular pressure correction value that takes into consideration the influence of the corneal thickness on the intraocular pressure.

As shown in FIG. 2, the CT measurement head 12a is provided with a first measurement optical system 15a having a first imaging device 151 together with a known measurement optical system for observation and photography and a control circuit for controlling the measurement optical system. ing. As shown in FIG. 2, the KR measurement head 12b is provided with a second measurement optical system 15b having a second imaging element 152 together with a known measurement optical system for observation and photography and a control circuit for controlling the measurement optical system. It is The first measurement optical system 15a and the first imaging element 151 are arranged on the first inspection optical axis L1 and are internal cameras of the CT measurement head 12a. The second measurement optical system 15b and the second imaging element 152 are arranged on the second inspection optical axis L2 and are internal cameras of the KR measurement head 12b. In front of the measurement head 12, light sources for illuminating the anterior segment and for measuring the shape of the membrane are arranged in an annular shape.

The monitor unit 14 has a touch panel type display screen 40 configured by laminating a touch sensor on the surface of a color liquid crystal panel. The monitor unit 14 receives touch operations on the display screen 40 . Note that "accepting a touch operation" means recognizing the relationship between the image displayed on the display screen 40 and the contact position in association with each other.

Further, the monitor section 14 is covered with a cover member 14a. A control circuit unit and the like are incorporated in the cover member 14a. The cover member 14a is supported by one edge of the top portion of the measuring head 12, and is rotatable around the horizontal axis (X-axis or Z-axis) and the vertical axis (Y-axis). Thereby, the display screen 40 can be arranged at a desired angle and direction in accordance with the examiner's position, posture, line-of-sight height, and the like. For example, the display screen 40 can be directed toward the back of the main body 10 as shown in FIG. 2, or the display screen 40 can be directed toward the front of the main body 10 as shown in FIG. Alternatively, the monitor section 14 may be arranged on the right or left side of the main body section 10 and the display screen 40 may be directed to the right or left side of the main body section 10 .

The base portion 11 of the body portion 10, the measuring head 12, and the monitor portion 14 are electrically connected. Further, the body portion 10 is electrically connected to the face support portion 20 and the optical table 30, as shown in FIG. This enables communication of data, operation instructions, etc. between the base portion 11, the measuring head 12, and the monitor portion 14, and between the main body portion 10, the face support portion 20, and the optical table 30. . Alternatively, for example, a power supply unit provided in the base unit 11 may be configured to supply power to the measurement head 12 , the monitor unit 14 , the face support unit 20 , and the optical table 30 . Note that the power supply unit of the optical table 30 may be provided separately from the ophthalmologic apparatus body 2 .

A control circuit unit incorporated in a cover member 14a covering the monitor section 14 includes a microprocessor, RAM, ROM, EEPROM, flash memory, etc., and includes a main control section 17 shown in FIG. 3 and an internal memory 17a. , functions as the storage unit 18 . The main control section 17 is mainly composed of a microprocessor, the internal memory 17a is mainly composed of RAM and the like, and the storage section 18 is mainly composed of ROM, EEPROM, flash memory and the like.

As shown in FIG. 3, the main control unit 17 includes a first measuring optical system 15a, a second measuring optical system 15b, an XYZ driving mechanism/driving circuit 16, a monitor unit 14, a storage unit 18, an operation unit 19, a wide-angle camera 60, the drive mechanism 25 of the face support unit 20, the table control unit 33 of the optical table 30, and the like are connected. The main control unit 17 develops programs stored in the storage unit 18 or the internal memory 17a on, for example, a ROM, and comprehensively controls each unit of the ophthalmologic apparatus 1 according to operation input signals from the operation unit 19.

The operation unit 19 includes the power button of the main body 10, the power button 34 of the optical table 30, the lift lever 35, and the like, and receives operation inputs for these. Operation input signals received by the operation unit 19 are sent to the main control unit 17 and the table control unit 33 . In addition, if the ophthalmologic apparatus 1 is provided with a control lever or an operation touch section that can be operated by the examiner or the subject P, or is provided with a controller for the examiner or a controller for the subject, these Included in the operation unit 19 .

Further, the operation unit 19 includes a touch panel type display screen 40 of the monitor unit 14 . That is, the monitor unit 14 displays various icons, an operation touch unit, a keyboard, a face image M captured by the wide-angle camera 60, and the like on the display screen 40. FIG. The display screen 40 accepts touch operations on icons, face images M, and the like displayed by itself. An operation input signal received by the display screen 40 is sent to the main control section 17 . Thereby, the main control unit 17 controls each unit of the ophthalmologic apparatus 1 using the touch operation received on the display screen 40 of the monitor unit 14 as input information.

The face support portion 20 is provided to be connected to the front (front) of the base portion 11 of the body portion 10 . Note that the face support section 20 is not limited to being connected to the body section 10 , and may be separated from the body section 10 and placed on the optical table 30 .

The face support portion 20 includes a base portion 21 connected and fixed to the base portion 11, a chin support portion 22 provided on the base portion 21 so as to be vertically movable, and a pair of posts 23 provided projecting from both left and right sides of the base portion 21. , a forehead rest 24 provided at the upper end of a pair of supports 23, and a drive mechanism 25 as a face support moving mechanism for vertically moving the chin rest 22. As shown in FIG. Further, the face support part 20 may be provided so as to be movable in the front-rear direction and the left-right direction so that the position thereof in the front-rear direction and the left-right direction can be adjusted.

The chin receiving part 22 is a member on which the chin of the subject P is placed. In the first embodiment, the chin support portion 22 is vertically movable with respect to the base portion 21 so that it is vertically movable with respect to the main body portion 10, and the face of the subject P placed on the chin support portion 22 is measured by the measurement head. 12 is relatively movable. However, as another different embodiment, the face of the subject P can be moved vertically relative to the measurement head 12 by configuring the entire face support section 20 to be vertically movable with respect to the main body section 10. good too.

The forehead support part 24 is a member against which the forehead of the subject P is abutted. In Example 1, the forehead rest 24 is provided on a pair of supports 23, and the position in the front-rear direction is fixed. However, as another different embodiment, the position of the forehead support 24 in the front-rear direction may be adjustable. The position adjustment of the forehead rest 24 in the front-rear direction is also performed by an appropriate drive mechanism (face support portion moving mechanism), so automatic adjustment by a program or adjustment by an operation input signal from the operation unit 19 is possible. Become. Furthermore, a configuration in which manual adjustment is also possible may be employed.

The subject P faces the ophthalmologic apparatus main body 2 while seated on an examination chair 50 or the like placed in front of the ophthalmologic apparatus main body 2 , places his chin on the chin rest 22 , and rests his forehead on the forehead support 24 . Stabilize the face (head) by pressing the patient's forehead against the patient's face and receive measurement of examination information. In the case of a short subject P such as a child, the measurement may be performed by placing the face against the face support section 20 in a standing state without sitting on the examination chair 50 . Moreover, in the case of the subject P who is on a wheelchair, the measurement may be performed by placing the face against the face support part 20 while on the wheelchair.

The face support unit 20 supports and stabilizes the face of the subject P so that the face (head) of the subject P does not move unexpectedly during the measurement of the examination information of the eye E to be examined. Any configuration may be used as long as it allows the operation to be performed. As another different embodiment, for example, the face support part 20 may have only one of the chin support part 22 and the forehead support part 24 . When only the forehead support portion 24 is provided, the forehead support portion 24 (or the entire face support portion 20) can be vertically moved by a predetermined drive mechanism.

The drive mechanism 25 is configured by a known drive mechanism such as a drive mechanism including a stepping motor, a drive mechanism including a DC motor and a potentiosensor, or the like. By driving the driving mechanism 25, the chin receiving portion 22 is moved in a predetermined upward or downward moving direction at a predetermined moving speed by a predetermined moving distance (amount of movement).

The drive mechanism 25 is driven and controlled by the main controller 17 . Specifically, the main control unit 17 uses the touch operation on the face image M including the left and right eyes to be examined E photographed by the wide-angle camera 60 displayed on the display screen 40 as an operation input signal (input information), Movement information such as movement distance and movement direction of 22 is calculated. Then, the main control section 17 controls the drive mechanism 25 according to the calculated movement information to move the chin support section 22 up and down. The moving distance, moving direction, etc. of the chin rest 22 can be detected by the number of steps of the stepping motor, numerical values of the potentiosensor, etc., and the main control unit 17 can easily and highly accurately move the chin rest based on these numerical values. Movement of the portion 22 can be controlled.

In Embodiment 1, 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 to move the chin rest section 22 in accordance with the instruction signal from the main control section 17 .

The optical table 30 includes a top plate 31 on which the ophthalmologic apparatus main body 2 is placed, an elevating mechanism 32 as a table moving mechanism for elevating the top plate 31, a table control unit 33 for controlling driving of the elevating mechanism 32, a power supply, and a power source. A button 34, a lifting lever 35 for manually operating the lifting mechanism 32, and a caster base 36 to which the lifting mechanism 32 is attached are provided. In the first embodiment, since the ophthalmologic apparatus 1 performs the measurement while the subject P is sitting on the examination chair 50 (sitting position), the height of the optical table 30 is also set to correspond to the measurement in the sitting position. . On the other hand, the ophthalmologic apparatus 1 may be configured to perform the measurement while the subject P is standing (upright position). In this case, the examination chair 50 does not need to be provided, and the optical table 30 has a height corresponding to measurement in the standing position.

The elevating mechanism 32 is controlled by the table control unit 33 to elevate the top board 31 . Thereby, the height of the tabletop 31 is adjusted according to the height of the subject P and the position of the jaw. The lifting mechanism 32 includes a lifting rod 32a that supports the top plate 31, a support rod 32b that vertically movably supports the lifting rod 32a, and a drive unit 32c that vertically moves the lifting rod 32a. Movement information (moving direction, moving distance, moving speed, etc.) of the lifting rod 32 a is detected by a rotary encoder or the like and sent to the table control section 33 .

The drive unit 32c is, for example, an electric type configured by an electric actuator or the like, but is not limited to this configuration. A hydraulic, pneumatic, screw, link, or other known lifting mechanism can be used as the drive unit 32c.

Caster base 36 supports the entire optical table 30 . The caster base 36 is provided with casters 36a with a locking mechanism. As a result, the examiner or the like can easily move the ophthalmologic apparatus 1 together with the optical table 30 to a desired installation location. can be installed.

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

The table control unit 33 receives an operation input signal for raising or lowering from the lifting lever 35, controls and drives the driving unit 32c of the lifting mechanism 32, and moves the top plate 31 (optical table 30) in the vertical direction. . 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 table top 31 vertically.

As the examination chair 50, a known chair whose seat surface 51 can be adjusted in height can be used. For example, it may be of a gas pressure type or an electric type. In Embodiment 1, the examination chair 50 is configured so that the height of the seat surface 51 can be adjusted independently without interlocking with the ophthalmologic apparatus main body 2 or the optical table 30, but the examination chair 50 is not limited to this. For example, the seat surface 51 may be moved vertically or the like according to a touch operation on the display screen 40 of the monitor unit 14 . Further, it is also possible to adopt a configuration in which the movement of the chin rest 22, the optical table 30, and the examination chair 50 is controlled by the control of the main control unit 17 so that they are arranged appropriately.

The wide-angle camera 60 has a cylindrical housing, a wide-angle lens, and an image pickup device, and captures the left and right eyes E of the subject P supported by the face support section 20 from one position, and the subject's P. It is a single camera that captures a face image M including the chin. The wide-angle camera 60 is positioned in front of the measurement head 12 facing the face support section 20, and the imaging optical axis L3 is aligned with the first inspection optical axis L1 of the CT measurement head 12a and the first inspection optical axis L1 of the KR measurement head 12b. 2 It is arranged at a position coinciding with the inspection optical axis L2 in the X-axis direction (horizontal direction). In addition, the wide-angle camera 60 has a photographing optical axis L3 positioned at the height position of the first inspection optical axis L1 of the CT measurement head 12a and the second position of the KR measurement head 12b in the Y-axis direction (height direction/vertical direction). It is arranged at an intermediate height position sandwiched between a pair of height positions on the inspection optical axis L2 (see FIG. 2). The face image M captured by the wide-angle camera 60 is a moving image here. The wide-angle camera 60 may continue to take images in the initial stage from when the power is turned on until the completion of rough alignment and until the completion of measurements by the CT measurement head 12a and the KR measurement head 12b, or may be interrupted as appropriate. good.

The vertical angle of view in the Y-axis direction (vertical direction) of the wide-angle camera 60 is the angle of view of the subject's eye E and the subject's P jaw, which are located at different positions according to the measurement mode, during the respective measurements by the CT measurement head 12a and the KR measurement head 12b. are both within the angle of view. That is, the position of the subject's eye E being measured by the CT measuring head 12a and the position of the subject's eye E being measured by the KR measuring head 12b are shifted with respect to the Y-axis direction and the Z-axis direction. On the other hand, for the vertical angle of view of the wide-angle camera 60, the line containing the eye E being measured by the CT measurement head 12a is defined as the vertical angle of view upper limit line, and the line containing the eye E being measured by the KR measurement head 12b is defined as the vertical angle of view upper limit line. The vertical angle of view is determined as the lower limit of the vertical angle of view. In Example 1, the vertical angle of view of the wide-angle camera 60 is set to, for example, 70° or more.

The horizontal angle of view in the X-axis direction (horizontal direction) of the wide-angle camera 60 is obtained when the position of either the left or right eye to be examined E is on the imaging optical axis L3 during each measurement by the CT measurement head 12a and the KR measurement head 12b. , and the other eye is also set to the angle of view. In Example 1, the horizontal angle of view of the wide-angle camera 60 is set to, for example, 90° or more.

The wide-angle camera 60 only needs to be able to photograph the left and right eyes E of the subject P supported by the face support section 20 and the face image M including the chin of the subject P. In other words, the wide-angle camera 60 includes a wide-angle camera with a wide-angle lens capable of capturing a wide angle of view with a short focal length, a super-wide-angle camera with a super-wide-angle lens, and a fish-eye camera with a fish-eye lens. Say. A wide-angle lens and an ultra-wide-angle lens correct distortion that occurs when capturing a wide angle of view, whereas a fisheye lens captures the distortion as it is without correcting it. However, the fisheye lens can be said to be a type of ultra-wide-angle lens in the sense that it is a lens capable of capturing a wide angle of view.

An example of the operation of the ophthalmologic apparatus 1 according to the first embodiment from power-on to completion of measurement of predetermined examination information will be described below with reference to FIGS. 4A to 8. FIG. The measurement procedure shown in the flowcharts of FIGS. 4A and 4B is based on the premise that the test information of the left and right eyes E of one subject P is measured, and when the power of the ophthalmologic apparatus 1 is turned on, be started.

In step S1, when the examiner turns on the power of the ophthalmologic apparatus 1 (ophthalmologic apparatus main body 2 and optical table 30) in order to measure the examination information of the subject's eye E of the subject P, the main control unit 17 performs XYZ driving. The mechanism/driving circuit 16 moves the measuring head 12 to the initial position.

In step S2, following the movement of the measurement head 12 to the initial position in step S1, the main control unit 17 controls the detection value of the detection sensor 26 (contact sensor) included in the face support unit 20 to determine whether the subject P has moved the chin. It is determined whether or not the face is put on the receiving part 22. - 特許庁The main control unit 17 repeats the determination in step S2 while the subject P does not put his face on the chin rest 22, and when it determines that the subject P puts his face on the chin rest 22, the process proceeds to step S3. move on.

In step S3, following the determination in step S2 that the subject P has placed his/her face on the chin rest 22, the main control unit 17 uses the wide-angle camera 60 to examine the left and right eyes E and the chin of the subject P. Start photographing of the face image M including. The shooting by the wide-angle camera 60 continues until predetermined measurements are completed.

In step S4, following the start of photographing of the face image M in step S3, the main control unit 17 displays the face image M captured by the imaging element of the wide-angle camera 60 as shown in FIG. is displayed on the display screen 40. The main control unit 17 also controls a first frame mark 41 indicating the movable range of the measuring head 12 in the XYZ directions, and a pair of second frames indicating a standard position of the subject's eye (standard measurement position) with respect to the first frame mark 41. A mark 42 is superimposed on the face image M and displayed on the display screen 40.例文帳に追加

Here, as shown in FIG. 5, the face image M displayed on the display screen 40 is an image of a region (for example, the face image M ), or, as shown in FIG. 6, an image of an area including both the left and right eyes E to be examined and the jaw of the subject P (for example, the entire image of the face image M) good too. The face image M is displayed in a rectangular first display area 40 a set in the center of the display screen 40 .

When displaying a region of the face image M that does not include the chin of the subject P in the first display region 40a, the main control unit 17 captures the image captured by the imaging device of the wide-angle camera 60 as shown in FIG. An image of a region including at least the chin of the subject P (for example, a lower image of the face image M, hereinafter referred to as “chin image M′”) of the face image M is displayed on the display screen 40 . The jaw image M' is displayed in the second display area 40b set below the first display area 40a.

In addition to the first display area 40a and the second display area 40b, the display screen 40 of the monitor unit 14 has a third display area 40c for displaying various icons. The main control section 17 displays an ID touch section T1 for inputting the ID of the subject P, an R touch section T2 for manually selecting the right eye, and a chin rest section 22 in the third display area 40c. Chin support vertical movement touch part T3 for moving up and down based on manual operation, mode setting touch part T4 (mode setting icon) for setting the measurement mode, setup touch part T5 for displaying the setup screen, left eye manually L touch portion T6 for selecting , measuring head front/rear touch portion T7 for moving the measuring head 12 in the front-rear direction (Z-axis direction) based on manual operation, and A/M for switching between automatic mode and manual mode. The touch part T8 and the like are displayed. Note that the icons displayed in the third display area 40c are not limited to those shown in FIGS. 5 and 6, and necessary icons are displayed as appropriate.

In step S5, following the display of the face image M in step S4, the main control section 17 sets the measurement mode, and proceeds to step S6. Here, the measurement mode is set based on an operation input signal received by the monitor unit 14 when the examiner performs a touch operation (tap operation) on the mode setting touch portion T4 displayed on the monitor unit 14 . Here, the setting modes are a first measurement mode in which intraocular pressure and corneal thickness are measured by the CT measurement head 12a, a second measurement mode in which the KR measurement head 12b is used for reflex measurement and keratometry, and a measurement mode by the CT measurement head 12a. One of the third measurement modes is set in which the intraocular pressure and the corneal thickness are measured, and the KR measurement head 12b continuously performs the reflex measurement and the keratometry. The display state of the mode setting touch portion T4 is switched according to the touch operation by the examiner, that is, according to the set measurement mode.

In step S6, it is determined that the measurement mode setting in step S5 or the touch operation in step S9 has not been received twice, or the rough alignment is interrupted in step S16, or the touch operation on the face image M in step S19 ( After determining that the long press operation) has been accepted, the examiner looks at the face image M displayed in the first display area 40a, confirms the position of the eye E to be examined, and then confirms the position of the eye E to be examined. A predetermined touch operation (here, a tap operation) is performed on the eye E to be inspected to specify the position of the eye E in the XY direction on the image. A touch operation on the first display area 40 a is accepted by the monitor unit 14 .

In step S7, following the designation of the position of the eye E in the XY directions by the examiner in step S6, the main control unit 17 places a cross-shaped tap mark 43 at the position touched by the examiner, as shown in FIG. display. The tap mark 43 is superimposed on the face image M and displayed. Note that the main control unit 17 determines that the position touched by the examiner deviates from the position of the subject's eye E on the image obtained by image analysis of the face image M by a predetermined distance or more. In such a case, an error message may be displayed on the display screen 40 to warn of redoing the touch operation.

In step S8, following the display of the tap mark 43 in step S7, the main control unit 17 enlarges the facial image M at a preset magnification to generate an enlarged image M1. , the display screen 40 displays a predetermined range determined based on the contact position with respect to the monitor section 14 . The enlarged image M1 is displayed, for example, in a fourth display area 40d set adjacent to the second display area 40b, as shown in FIG. A tap mark 43 is superimposed and displayed on the enlarged image M1. The enlarged image M1 is a still image at the timing when the face image M is tapped. Note that FIG. 7 shows a state after the examiner performs touch operations on the left and right eyes E, respectively. When only one of the left and right eye E is touched, only one tap mark 43 is displayed and only one enlarged image M1 is displayed.

In step S9, following the display of the enlarged image M1 in step S8, the main control section 17 determines whether or not the monitor section 14 has received a predetermined touch operation (a tap operation on the face image M) twice. When the main control unit 17 determines that the monitor unit 14 has not received two touch operations, the process returns to step S6, and when it determines that the monitor unit 14 has received two touch operations, the process proceeds to step S10. Note that "a state in which the monitor unit 14 has received two touch operations" is a state in which the examiner designates the XY positions of the left and right eyes E, respectively.

In step S10, after determining that two touch operations (tap operations) have been received in step S9, the main control unit 17 controls the left and right motions of the measuring head 12 based on the order of the two touch operations received with a time difference. The order of measurement of the eye E to be examined is set. Here, which position of the left or right eye to be inspected E is designated by the two touch operations received with a time lag is determined from the relative positional relationship between the two contact positions with respect to the first display area 40a. be judged. That is, when the contact position in the first touch operation is on the left side of the contact position in the second touch operation, the test information for the left eye is measured first, and then the test information for the right eye is measured. set in order.

In step S11, following the setting of the order of measurement in step S10, the main control unit 17 adjusts the height of the two tap marks 43 and the pair of second frame marks 42 in the vertical direction. 22 in the Y-axis direction is calculated. Here, as the moving distance of the chin rest 22 in the Y-axis direction, based on the XY position of the subject's eye E on the image specified by the examiner's touch operation on the face image M, A vertical distance (ΔY') from L3 to the subject's eye E on the face image M is calculated. A detailed calculation method of ΔY′ will be described later.

In step S12, following the calculation of ΔY' in step S11 or the judgment that rough alignment is not completed in step S17, the main control unit 17 controls the drive mechanism 25 to move the chin rest 22 along the Y axis by ΔY'. move in the direction As a result, the face of the subject P moves up and down together with the chin rest 22, and the execution of rough alignment using the touch operation on the face image M captured by the wide-angle camera 60 as input information is started. Note that rough alignment means moving the chin rest 22 to keep the positional deviation between the subject's eye E and the measuring head 12 within the movable range of the measuring head 12 in the XYZ directions.

In step S13, following the movement control of the chin rest 22 (start of execution of coarse alignment) in step S12, the main control unit 17 performs a predetermined touch operation (here, displayed in the fourth display area 40d) on the monitor unit 14. It is determined whether or not the monitor unit 14 has received the tap operation on the enlarged image M1. When the monitor unit 14 has not received a touch operation (no tap operation on the enlarged image M1), the main control unit 17 proceeds to step S15, and the monitor unit 14 has received a touch operation (a tap operation on the enlarged image M1). If so, the process proceeds to step S14.

In step S14, after determining that the touch operation (tap operation) on the enlarged image M1 has been received in step S13, the main control unit 17 sets the contact position on the enlarged image M1 to the new XY position information of the eye E to be examined. , the movement control (coarse alignment) of the chin rest 22 is corrected. Specifically, first, the main control unit 17 temporarily erases the tap marks 43 displayed in the first display area 40a and the fourth display area 40d. Then, the main control unit 17 redisplays the tap mark 43 at the contact position on the fourth display area 40d. Further, based on the positional relationship between the tap mark 43 and the enlarged image M1, the tap mark 43 is displayed again in the first display area 40a. Then, the main control unit 17 assumes that the XY position of the subject's eye E is designated again by the examiner's touch operation on the fourth display region 40d. That is, the main control unit 17 sets the contact position with respect to the enlarged image M1 to the XY position of the subject's eye E on the image, and recalculates ΔY' based on the newly set subject's eye position. Then, the main controller 17 moves the chin rest 22 in the Y-axis direction with the newly calculated ΔY′ as the target value.

In step S15, after determining that a touch operation (tap operation) on the enlarged image M1 has not been received in step S13 or correcting the coarse alignment in step S14, the main control unit 17 causes the monitor unit 14 to perform a predetermined It is determined whether or not the monitor unit 14 has received a touch operation (here, a swipe operation on the face image M displayed in the first display area 40a). If the monitor unit 14 has not received a touch operation (no swipe operation on the face image M), the main control unit 17 proceeds to step S17, and the monitor unit 14 has received a touch operation (a swipe operation on the face image M). If so, the process proceeds to step S16.

In step S<b>16 , after determining that the touch operation (swipe operation) on the face image M has been received in step S<b>15 , the main control section 17 stops moving the chin rest section 22 . That is, the coarse alignment is interrupted. Then, an error message prompting redesignation of the position of the eye to be examined (touch operation on the face image M) is displayed on the display screen 40, and the process returns to step S6. As a result, the examiner can re-specify the position of the eye to be examined and redo the coarse alignment. It should be noted that after the rough alignment is interrupted and an error message is displayed, the process may proceed to the end without returning to step S6.

In step S17, following the determination in step S15 that the touch operation (swipe operation) on the face image M has not been accepted, the main control unit 17 determines whether the movement of the chin rest 22 in the Y-axis direction has been completed. determine whether or not If the movement in the Y-axis direction is completed, that is, if the chin rest 22 has moved by ΔY', it is assumed that the coarse alignment is completed, and the process proceeds to step S18. On the other hand, if the movement of the chin receiving portion 22 has not been completed, the process returns to step S12.

When the chin rest 22 is moved in the Y-axis direction by ΔY' to complete the rough alignment, the two tap marks 43 and the pair of second frame marks 42 are brought closer to each other in the vertical direction. As shown, the deviation in the Y-axis direction between the subject's eye E on the image and the standard measurement position (second frame mark 42) is reduced. However, ΔY′ is a value calculated based on the position of the subject's eye on the image designated by the examiner's touch operation on the face image M (hereinafter referred to as "specified eye's position B", see FIG. 9). . That is, as schematically shown in FIG. 9, the actual position of the eye to be examined E (actual position of the eye to be examined C) is shifted from the designated position B of the eye to be examined by ΔY−ΔY′ in the Y-axis direction. Further, the actual position C of the eye to be examined is shifted from the designated position B of the eye to be examined by ΔZ in the Z-axis direction. Here, “ΔY” is the actual deviation distance in the Y-axis direction between the actual position C of the subject's eye and the photographing optical axis L3 of the wide-angle camera 60 . That is, ΔY−ΔY′ is the movement correction distance of the chin rest 22 for matching the actual vertical position of the subject's eye E with the photographing optical axis L 3 of the wide-angle camera 60 . "ΔZ" is the actual deviation distance between the actual position C of the eye to be inspected and the specified position B of the eye to be inspected in the Z-axis direction.

As a result, after the rough alignment is completed, the chin rest 22 is further moved by ΔY−ΔY′ in the Y-axis direction, so that the actual vertical position of the subject's eye E and the standard measurement position (the second frame mark 42 ) in the Y-axis direction can be further reduced. Further, by moving the measuring head 12 by ΔZ in the Z-axis direction in advance before precision alignment, which will be described later, it is possible to shorten the time required for precision alignment. A detailed calculation method of ΔY−ΔY′ and ΔZ will be described later.

In step S18, following the determination that rough alignment is completed in step S17 or the determination that measurement is not completed in step S24, the main control unit 17 causes the display in the fourth display area 40d to be displayed as shown in FIG. switch. That is, the main control unit 17 displays only the enlarged image M1 of the eye E to be measured (the enlarged image M1 of the left eye in FIG. 8) in the fourth display area 40d according to the measurement order set in step S10. Let The enlarged image M1 of the subject's eye E to be measured is determined from the relative positional relationship between the two contact positions with respect to the first display area 40a. That is, when the left eye is measured first, an enlarged image M1 of a predetermined range centered on the contact position relatively left with respect to the first display area 40a is displayed.

In step S19, following the switching of the fourth display area 40d in step S18, the main control unit 17 performs a predetermined touch operation on the monitor unit 14 (here, the length of the face image M displayed in the first display area 40a). It is determined whether or not the monitor unit 14 has received the push operation). If the monitor unit 14 has not received a touch operation (no long press operation on the face image M), the main control unit 17 proceeds to step S19, and the monitor unit 14 has accepted a touch operation (long press operation on the face image M). Yes), the process returns to step S6. As a result, the examiner can re-specify the position of the eye to be examined and redo the coarse alignment. At this time, the main control unit 17 may cause the display screen 40 to display a message prompting redesignation of the position of the subject's eye (touch operation on the face image M).

In step S20, following the determination in step S19 that the touch operation (long-press operation) on the face image M has not been accepted, the examiner makes a predetermined touch on the enlarged image M1 displayed in the fourth display area 40d. An operation (here, a tap operation) is performed to designate a feature point (for example, pupil position) of the eye E to be examined. A touch operation on the fourth display area 40 d is accepted by the monitor unit 14 . Further, the main control unit 17 displays a cross-shaped tap mark 43 at the position touched by the examiner (see FIG. 8). The tap mark 43 is displayed superimposed on the enlarged image M1.

In step S21, following the designation of the feature points on the screen by the examiner in step S20 or the judgment that the fine alignment is not completed in step S22, the main control unit 17 performs measurement according to the measurement mode set in step S5. The CT measurement head 12a or the KR measurement head 12b used for the measurement is moved to automatically adjust the fine alignment with respect to the designated feature point. At this time, the main controller 17 displays a cross-shaped alignment mark 44 indicating the alignment center in the fourth display area 40d (see FIG. 8).

In the automatic adjustment of the precision alignment, the distance between the tap mark 43 displayed in the fourth display area 40d and the alignment mark 44 is calculated by the main control unit 17, and the XYZ driving mechanism/driving circuit 16 is operated based on the calculated distance value. Drive control. Then, the measuring head 12 (CT measuring head 12a or KR measuring head 12b) is moved in the vertical and horizontal directions (Y-axis direction and X-axis direction) based on the distance calculation value, and the feature point image is focused. , the measuring head 12 is moved in the front-rear direction (Z-axis direction).

In step S22, following the automatic fine alignment adjustment in step S21, the main control unit 17 determines whether or not the fine alignment is completed. If the fine alignment has not been completed, the process returns to step S21, and if the fine alignment has been completed, the process proceeds to step S23.

In step S23, the main control unit 17 automatically starts measuring the examination information of the eye E to be examined, following the determination of completion of the fine alignment in step S22. Here, the main control unit 17 may continuously display the face image M captured by the wide-angle camera 60 on the display screen 40 during measurement of the examination information of the eye E to be examined. At this time, the area of the first display area 40 a may be reduced from that before measurement of the examination information, and may be set at an arbitrary position within the display screen 40 .

In step S24, following the measurement of the subject's eye E in step S23, the main control unit 17 stores the measurement results in the storage unit 18, and determines whether or not all necessary measurements have been completed. If measurement of the necessary inspection information has not been completed, the process returns to step S18, and if all necessary measurements have been completed, the process proceeds to END.

A method of calculating ΔY′ in step S11 and a method of calculating ΔY−ΔY′ and ΔZ in step S17 will be described below with reference to FIG. FIG. 9 schematically shows the positional relationship between the subject's eye E and the wide-angle camera 60 in the Y-axis direction (up-down direction) and the Z-axis direction (front-rear direction).

In FIG. 9, 61 indicates the photographic optical system of the wide-angle camera 60, the straight line L3 indicates the photographic optical axis of the photographic optical system 61, and the point A indicates the lens principal point of the photographic optical system 61. FIG. A point B indicates the position of the subject's eye E on the face image M (specified position of the subject's eye). The position in the XY direction of the specified position B of the eye to be inspected is set by the examiner's touch operation on the face image M, and the position in the Z direction of the specified position B of the eye to be inspected is where the wide-angle camera 60 is focused. position. When calculating ΔY′, it is assumed that the subject's eye E is present at the subject's eye designated position B, which is the position on the face image M. FIG. A point C indicates the actual position of the subject's eye E (actual subject's eye position). Furthermore, a point D indicates the center position of the image of the subject's eye captured by the imaging element 62 of the wide-angle camera 60 (hereinafter referred to as "the subject's eye image position"). "s" in FIG. 9 is the distance in the front-rear direction (Z-axis direction) from the lens principal point A of the imaging optical system 61 to the specified position B of the subject's eye. “s′” in FIG. 9 is the distance (focal length) in the front-rear direction (Z-axis direction) from the lens principal point A of the imaging optical system 61 to the imaging element 62 of the wide-angle camera 60 .

A moving distance ΔY′ of the chin rest 22 for matching the vertical positions of the two tap marks 43 and the pair of second frame marks 42 is calculated from the following formula (1).
ΔY′=(s/s′)×Δy′ (1)
Δy′ is the distance in the vertical direction (Z-axis direction) from the photographing optical axis L3 of the wide-angle camera 60 to the position D of the image of the subject's eye. “Δy′” is detected from the subject's eye image captured by the imaging element 62 .

Here, the moving distance ΔY' of the chin rest 22 is the vertical distance from the photographing optical axis L3 of the wide-angle camera 60 to the subject's eye E on the face image M, as shown in FIG. That is, the main control unit 17 controls the distance (s) in the front-rear direction from the lens principal point A of the wide-angle camera 60 to the subject's eye E (subjected eye's specified position B) on the face image M, and the distance (s) from the lens principal point A to the subject's eye. Based on the distance (s′) in the front-rear direction to the image position D and the vertical distance (Δy′) from the photographing optical axis L3 of the wide-angle camera 60 to the position D of the image of the subject's eye, the face image is projected from the photographing optical axis L3. A vertical distance (ΔY') to the subject's eye E (subjected eye's designated position B) on M is calculated.

ΔY′ is calculated on the assumption that the eye to be inspected E is present at the eye to be inspected designated position B, which is the position on the face image M. (Eye to be examined actual position C). Therefore, the actual displacement distance ΔY in the Y-axis direction between the actual position C of the eye to be inspected and the photographing optical axis L3 of the wide-angle camera 60 is the actual displacement distance ΔZ in the Z-axis direction between the actual position C of the eye to be inspected and the specified position B of the eye to be inspected. It is calculated from the following formula (2) with consideration.
ΔY = ((s + ΔZ)/s') x Δy' (2)

Further, the difference between ΔY and ΔY′ (the displacement distance in the Y-axis direction between the actual position C of the eye to be examined and the designated position B of the eye to be examined) is calculated by the following equation (3).
ΔY−ΔY′=((s+ΔZ)/s′)×Δy2′ (3)

Here, “Δy2′” is the vertical direction (Z-axis direction) from the photographing optical axis L3 of the photographing optical system 61 to the subject’s eye image position D when the rough alignment for moving the chin rest 22 by ΔY′ is completed. ). Further, the deviation distance in the Y-axis direction between the actual position C of the eye to be inspected and the designated position B of the eye to be inspected obtained by the above equation (3) is set so that the actual vertical position of the eye to be inspected E coincides with the photographing optical axis L3. is the movement correction distance of the chin receiving portion 22. That is, the main control unit 17, based on the movement distance (ΔY′) of the chin rest 22 and the vertical distance (ΔY) from the photographing optical axis L3 of the wide-angle camera 60 to the actual position C of the subject's eye, A movement correction distance (ΔY−ΔY′) of the chin rest 22 is calculated.

And the unknown values in equations (2) and (3) are ΔY and ΔZ. Therefore, ΔY and ΔZ, which are unknown values, can be calculated by solving equations (2) and (3) as simultaneous equations.

As a result, the vertical distance (ΔY) from the photographing optical axis L3 of the wide-angle camera 60 before rough alignment to the actual subject's eye E can be obtained.

Furthermore, by obtaining the distance ΔZ in the longitudinal direction from the designated position B of the eye to be examined to the actual eye E to be examined, the distance in the longitudinal direction from the lens principal point A of the wide-angle camera 60 before rough alignment to the actual eye E to be examined ( s+ΔZ) can be obtained. That is, the main control unit 17 causes the vertical distance (ΔY) from the photographing optical axis L3 of the wide-angle camera 60 to the actual position C of the eye to be examined to coincide with the actual vertical position of the eye to be examined E with the photographing optical axis L3. The distance (s+ΔZ) in the front-rear direction from the lens principal point A of the wide-angle camera 60 to the actual subject's eye E is calculated based on the movement correction distance (ΔY−ΔY') of the chin rest 22 for the adjustment.

Characteristic actions of the ophthalmologic apparatus 1 of the first embodiment will be described below.

The ophthalmologic apparatus 1 of the first embodiment includes a measuring head 12 for measuring an eye E to be examined of a subject P, and a face supporting section that supports the face of the subject P and is provided movably with respect to the measuring head 12. 20, a wide-angle camera 60 for photographing a face image M including the left and right eyes E of the subject P supported by the face support part 20, and the face image M photographed by the wide-angle camera 60 is displayed. A touch panel type monitor unit 14 that receives a touch operation on M is provided. Furthermore, the ophthalmologic apparatus 1 of the first embodiment includes a main control unit 17 that performs support control for movement of the chin rest 22 of the face support 20 with respect to the measurement head 12 using touch operations received by the monitor 14 as input information. ing.

That is, when the eye E to be examined is measured, the ophthalmologic apparatus 1 proceeds to steps S1, S2, S3, and S4 in the flowchart shown in FIG. is displayed on the display screen 40. At this time, in the face image M captured by the wide-angle camera 60, the left and right eyes E to be examined of the subject P are displayed. difficult to properly recognize.

On the other hand, in the ophthalmologic apparatus 1 according to the first embodiment, the process proceeds to steps S5 and S6, and when the XY position of the subject's eye E on the image is specified by the touch operation (tap operation) on the face image M of the examiner, , step S7, step S8, and step S9. Further, the examiner performs two touch operations on the face image M, and when the XY positions of the left and right eyes E to be examined are specified respectively, the process proceeds to step S10 and step S11, and the touch operation of the examiner on the face image M is performed. The position of the subject's eye E is set based on , and the moving distance (ΔY') of the chin rest 22 in the Y-axis direction is calculated. Then, in step S12, the chin rest 22 is moved in the Y-axis direction to perform rough alignment.

In this manner, the main control unit 17 sets the position of the subject's eye E based on the examiner's touch operation on the face image M, and calculates the movement distance (ΔY′) of the chin rest 22 in the Y-axis direction. , move the chin rest 22 to perform coarse alignment. Therefore, even if the image of the eye to be examined E is relatively small in the face image M and it is difficult to recognize the eye to be examined E by image processing, the touch operation by the examiner received by the monitor unit 14 is used as input information. By moving the chin rest 22, the main control section 17 can assist and control the movement of the face support 20 (chin rest 22) based on the appropriately recognized position of the eye E to be examined.

Further, in the ophthalmologic apparatus 1 according to the first embodiment, when the monitor unit 14 receives a predetermined touch operation (swipe operation on the face image M) while the chin rest 22 is moving, the main control unit 17 causes the chin rest 22 to move. 22 stops moving and aborts the coarse alignment. That is, in step S12 of the flowchart shown in FIG. 4B, after moving the chin rest 22 and starting rough alignment, the process proceeds to steps S13, S14, and S15. , the process advances to step S16 to stop the movement of the chin rest 22 and interrupt the rough alignment.

As a result, even if an unforeseen situation occurs, such as when the face of the subject P comes off the face support section 20, the movement of the chin rest section 22 can be quickly stopped without complicated operations. can be made Note that the predetermined touch operation for stopping the movement of the chin rest 22 during the movement of the chin rest 22 is not limited to the swipe operation on the face image M. For example, a flick operation, a long press operation, a double It may be a tap operation or the like.

Further, in the ophthalmologic apparatus 1 of Example 1, in step S17 shown in FIG. 4B, after the movement of the chin rest 22 is completed and it is determined that the rough alignment is completed, the process proceeds to steps S18 and S19, and the monitor unit It is determined whether or not there is a predetermined touch operation on 14 (a long press operation on the face image M). Then, if it is determined that there is a long press operation on the face image M, the process returns to step S6, and the examiner redesignates the position of the eye to be examined. Then, the main control section 17 uses a new touch operation on the face image M as input information to move the chin rest section 22 again. That is, the main control unit 17 causes the monitor unit 14 to perform a predetermined touch operation (a long press operation on the face image M) after the movement of the chin rest 22 is completed and before execution of alignment (precision alignment) for moving the measuring head 12 . is received, a new touch operation on the face image M is used as input information to perform support control for re-moving the chin rest 22 .

Therefore, before executing the fine alignment for moving the measuring head 12, for example, when the subject's eye E is greatly out of the measurable range, the rough alignment can be redone without complicated operations. Note that the predetermined touch operation for redoing the coarse alignment before the fine alignment is not limited to a long press operation on the face image M, but may be, for example, a swipe operation, a flick operation, a double tap operation, etc. on the monitor unit 14. may

Further, in the ophthalmologic apparatus 1 of the first embodiment, the main control unit 17 sets the movement distance of the chin rest 22 when moving the chin rest 22 from the photographing optical axis L3 to the subject's eye E on the face image M. The distance (ΔY′) in the vertical direction is the distance (s) in the front-rear direction from the lens principal point A of the wide-angle camera 60 to the subject eye E (specified position B of the subject eye) on the face image M, and the distance (s) in the front-rear direction from the lens principal point A It is calculated based on the longitudinal distance (s') to the subject's eye image position D and the vertical distance (Δy') from the imaging optical axis L3 of the wide-angle camera 60 to the subject's eye image position D.

Thereby, the main control section 17 can easily calculate the moving distance (ΔY′) when moving the chin rest section 22 by using the touch operation on the monitor section 14 as input information.

Further, in the ophthalmologic apparatus 1 of the first embodiment, when calculating the movement distance (ΔY′) when moving the chin rest 22, it is assumed that the eye to be inspected E is present at the specified position B of the eye to be inspected. Actually, it exists at a position (actual position C of the eye to be examined) shifted from the specified position B of the eye to be examined. Therefore, the main control unit 17, based on the movement distance (ΔY′) of the chin rest 22 and the vertical distance (ΔY) from the photographing optical axis L3 of the wide-angle camera 60 to the actual position C of the subject's eye, , the movement correction distance (ΔY−ΔY′) of the chin rest 22 is calculated.

As a result, when rough alignment is performed by moving the chin rest 22, the chin rest 22 is moved according to the actual position of the eye E to be examined, and the actual vertical position of the eye E to be examined and the standard measurement position ( The deviation in the Y-axis direction from the second frame mark 42) can be further reduced. Therefore, the accuracy of coarse alignment can be improved. Further, during the fine alignment in which the measuring head 12 is moved according to the position of the eye E to be inspected, the moving distance of the measuring head 12 can be suppressed, and the time required for the fine alignment can be shortened.

Further, in the ophthalmologic apparatus 1 of the first embodiment, the main control unit 17 controls the vertical distance (ΔY) from the photographing optical axis L3 of the wide-angle camera 60 to the actual position C of the eye to be examined, and the actual vertical direction of the eye E to be examined. The movement correction distance (ΔY−ΔY′) of the chin rest 22 for matching the position of the photographing optical axis L3, and the front-rear direction from the lens principal point A of the wide-angle camera 60 to the actual eye to be examined E , the distance (s+ΔZ) is calculated.

This makes it possible to move the measuring head 12 in the front-rear direction in advance according to the position of the eye E to be inspected before performing the fine alignment by moving the measuring head 12 according to the position of the eye E to be inspected. Therefore, it is possible to reduce the distance that the measurement head 12 moves during precision alignment, and to shorten the time required for precision alignment.

The ophthalmic apparatus of the present invention has been described above based on the first embodiment, but the specific configuration is not limited to this embodiment, and the gist of the invention according to each claim. Design changes and additions are permitted as long as they do not deviate from

In the first embodiment, the main control unit 17 controls the drive mechanism 25 to automatically move the chin support unit 22 up and down as support control for movement of the face support unit 20 (chin support unit 22) performed by the main control unit 17. I gave an example to make it work. However, the movement support control of the face support section 20 is not limited to this. For example, the examiner touches the chin rest vertical movement touch part T3, and the main control part 17 controls the drive mechanism 25 using the touch operation on the chin rest vertical movement touch part T3 as input information to control the chin rest part. 22, that is, when the chin rest 22 is moved based on manual operation, the main control unit 17 uses the touch operation on the face image M captured by the wide-angle camera 60 as input information to move the chin rest. After calculating the movement distance (ΔY') of 22 in the Y-axis direction, the movement distance of chin rest 22 and information on the movement target position of chin rest 22 are displayed on display screen 40 of monitor 14, Support control for movement of the face support section 20 may be performed.

In this way, the support control of the movement of the face support part 20 (chin rest part 22) performed by the main control part 17 is not limited to automatically moving the chin rest part 22, but also when the chin rest part 22 is moved. It also includes presenting necessary information so that the examiner can move the chin rest 22 smoothly when manually moving the chin rest 22 .

In this case, the examiner visually recognizes information such as the movement distance of the chin rest portion 22 displayed on the monitor unit 14, and performs a touch operation on the chin rest vertical movement touch portion T3 based on the visually recognized information. Rough alignment can be performed by appropriately moving the receiving portion 22 . Information such as the moving distance of the chin support 22 may be notified to the examiner by voice or the like.

Further, in the ophthalmologic apparatus 1 of Example 1, while the chin rest 22 is being moved (during rough alignment), as shown in FIG. A scale image 46 indicating the remaining movement distance (planned movement distance) of the unit 22 may be displayed on the monitor unit 14 . Accordingly, by viewing the scale image 46 displayed on the monitor unit 14, the examiner can grasp the movement state of the chin rest 22 and how much more the chin rest 22 will move. Therefore, rough alignment performed by moving the chin receiving portion 22 can be performed safely even by remote control or the like.

Furthermore, when the scale image 46 is displayed on the monitor unit 14, the jaw image M' (the image of the area including at least the jaw of the subject P in the face image M) is displayed on the display screen 40 as shown in FIG. It may be displayed in the central part, and the scale image 46 may be displayed according to the position of the jaw of the subject P shown in the jaw image M'. This makes it easier for the examiner to grasp the positional relationship between the subject P and the face support section 20, and allows rough alignment to be performed smoothly.

The main control unit 17 may display the moving distance and the planned moving distance of the chin rest 22 not only by the scale image 46 shown in FIG. 10 but also by numerical values.

Further, in the first embodiment, when the chin rest 22 is moved, the top plate 31 of the optical table 30 on which the measuring head 12 is placed is not moved up and down. However, it is not limited to this. For example, the main control section 17 sets the elevation state of the top plate 31 according to the movement state of the chin support section 22 of the face support section 20 . Then, the lifting mechanism 32 of the optical table 30 may be controlled to move the top plate 31 of the optical table 30 up and down according to the set up/down state of the top plate 31 . In other words, the optical table 30 and the chin rest 22 may be "coordinated".

This eliminates the need to adjust the position of the optical table 30 and the position of the chin rest 22 separately, and the coordinated movement of the optical table 30 and the chin rest 22 enables rough alignment. For this reason, for example, it is possible to prevent the face of the subject P from moving up and down significantly during rough alignment, giving an uncomfortable feeling, and to prevent the chin from coming off the chin support 22. The face of the subject P can be stably supported without imposing a burden or the like. In addition, the height adjustment between the measuring head 12 and the subject's eye E can be performed efficiently. Note that the optical table 30 can be moved not only up and down but also forward, backward, left and right (three-dimensional directions), and the optical table 30 and the chin rest 22 can be "cooperatively moved" in any one of the three-dimensional directions. good too.

Furthermore, in Example 1, it is not determined whether or not the chin of the subject P is supported during movement of the chin rest 22, but the present invention is not limited to this. For example, while the chin rest 22 is moving, the main control unit 17 controls the subject P to put his/her face on the chin rest 22 based on the detection value of the detection sensor 26 (contact sensor) of the face support 20. determine whether there is Then, when it is determined that the subject P does not put his/her face on the chin rest 22 (the chin has come off the chin rest 22), the main control unit 17 stops the movement of the chin rest 22, Alignment may be interrupted. Further, after interrupting the rough alignment, the main control section 17 may restart the movement of the chin rest 22 when it is determined that the subject P is resting his/her face on the chin rest 22 . In other words, the main control section 17 may use the detection result of the detection sensor 26 as input information to perform movement support control of the chin rest section 22 .

As a result, when an unexpected situation occurs while the chin rest 22 is moving, the movement of the chin rest 22 can be automatically controlled without the examiner's operation. As a result, the operation burden on the examiner can be reduced. Since the detection sensor 26 may detect the support state of the subject P by the face support section 20, the detection sensor 26 is provided in the forehead support section 24, and the main control section 17 detects the subject P may determine whether or not the forehead rests against the forehead rest 24 .

Further, in the ophthalmologic apparatus 1 of the first embodiment, the face image M captured by the wide-angle camera 60 includes the left and right eyes E and the chin of the subject P. As shown in FIG. However, the face image M may be an image including at least the left and right eyes E of the subject P, and the chin of the subject P may be captured by imaging means other than the wide-angle camera 60, You don't have to shoot.

Further, in the ophthalmologic apparatus 1 of the first embodiment, an example in which the monitor unit 14 for receiving the touch operation on the face image M is attached to the ophthalmologic apparatus main body 2 is shown. However, the monitor unit 14 may be detachable from the ophthalmologic apparatus main body 2, and the monitor unit 14 may be held and operated by the examiner. Separately from the monitor unit 14, a controller such as a tablet terminal having a display unit and an operation unit such as a touch panel or a keyboard, an information terminal such as a smartphone, or a dedicated terminal may be provided, and the controller may be used as the monitor unit. . In this case, a screen (including the face image M) similar to the screen displayed on the display screen 40 of the monitor section 14 is displayed on the display section of the controller. Thereby, the examiner can hold the monitor unit 14 and the controller and appropriately specify the position of the eye E to be examined from a desired location away from the ophthalmologic apparatus main body 2 .

Further, in the ophthalmologic apparatus 1 of Example 1, an example of a composite measuring head having the CT measuring head 12a and the KR measuring head 12b is shown as the measuring head 12. FIG. However, the measuring head 12 is not limited to a compound measuring head, and may be a single measuring head. Furthermore, the type of the measurement head 12 is not limited to the CT measurement head 12a or the KR measurement head 12b. Various measurement heads applied to the ophthalmic device 1 may be used.

In the ophthalmologic apparatus 1 of the first embodiment, the wide-angle camera 60 has a cylindrical housing, a wide-angle lens, and an imaging element. However, the wide-angle camera 60 may have a configuration in which a pinhole diaphragm, focusing lens means, or the like is added in order to widen the depth of focus.

1 ophthalmic device 2 ophthalmic device body 10 body portion 12 measurement head 12a CT measurement head 12b KR measurement head 14 monitor portion 40 display screen 17 main control portion (control portion)
19 Operation unit 20 Face support unit 22 Chin support unit 24 Forehead support unit 60 Wide-angle camera E Eye to be examined M Face image M1 Enlarged image P Examinee

Claims (9)

a measuring head for measuring an eye to be examined of a subject;
a face support that supports the subject's face and is provided movably with respect to the measurement head;
a wide-angle camera that captures a facial image including left and right eyes of the subject supported by the face support;
a touch panel monitor unit that displays the face image captured by the wide-angle camera and receives a touch operation on the face image;
a control unit that performs support control for movement of the face support unit using the touch operation received by the monitor unit as input information;
An ophthalmic device comprising: An ophthalmic device according to claim 1, wherein
The ophthalmologic apparatus, wherein the control unit stops moving the face support unit when the monitor unit receives a predetermined touch operation while the face support unit is moving. In the ophthalmic device according to claim 1 or claim 2,
When the monitor unit receives a predetermined touch operation after completion of movement of the face support unit and before moving the measurement head according to the position of the eye to be inspected, the control unit displays on the monitor unit an ophthalmologic apparatus that performs support control for re-moving the face support unit using as input information a new touch operation on the face image that has been touched. In the ophthalmic device according to any one of claims 1 to 3,
The ophthalmologic apparatus, wherein the control unit causes the monitor unit to display at least one of a movement distance of the face support part and a planned movement distance of the face support part during movement of the face support part. In the ophthalmic device according to any one of claims 1 to 4,
The measuring head is mounted on an optical table movable in three dimensions,
The ophthalmologic apparatus, wherein the control section moves the optical table according to the movement state of the face support section. In the ophthalmic device according to any one of claims 1 to 5,
The face support unit has a contact sensor that detects a contact state of the subject's face,
The ophthalmologic apparatus according to claim 1, wherein the control section performs support control of the movement of the face support section while the face support section is moving, using the detection result of the contact sensor as input information. In the ophthalmic device according to any one of claims 1 to 6,
The control unit controls the distance in the front-back direction from the lens principal point of the wide-angle camera to the eye to be examined, the distance in the front-back direction from the lens principal point to the image of the eye to be examined captured by the wide-angle camera, and the distance in the front-back direction from the lens principal point of the wide-angle camera. An ophthalmologic apparatus, wherein a vertical distance from the lens optical axis to the subject's eye is calculated based on a vertical distance from the photographing optical axis to the subject's eye image. An ophthalmic device according to claim 7, wherein
The controller adjusts the vertical position of the subject's eye to the imaging optical axis based on the moving distance of the face support section and the vertical distance from the imaging optical axis to the subject's eye. an ophthalmologic apparatus that calculates a movement correction distance of the face support unit for the face support unit. An ophthalmic device according to claim 8, wherein
The control unit adjusts the longitudinal distance from the lens principal point to the eye to be inspected based on the vertical distance from the imaging optical axis to the eye to be inspected and the movement correction distance of the face support unit. An ophthalmologic device characterized by:

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