JP6662149B2 - Ophthalmic equipment - Google Patents

Description

  The present disclosure relates to an ophthalmologic apparatus for examining a subject's eye.

    In an ophthalmologic apparatus, the apparatus main body or chin rest is moved to align the subject's eye with the apparatus. For example, in a slit lamp microscope called a slit lamp, a mechanical up-down movement mechanism is generally used (for example, see Patent Document 1). In recent years, an electric moving mechanism has been proposed (for example, see Patent Document 2).

JP 2001-83429 A JP 2014-12034 A

    By the way, in the ophthalmologic apparatus of Patent Document 2, it is described that the height of the movable portion is adjusted to the initial state when the power is turned on or by using a dedicated switch. However, in the case of initialization at the time of power-on, an examiner who is accustomed to the conventional mechanical moving mechanism may want to follow the same operational feeling as before, and may not like the initialization operation. On the other hand, when performing initialization in response to an operation signal from a dedicated switch, the examiner needs to operate the switch each time the initialization is performed, which is troublesome.

  In view of the above problems, an object of the present disclosure is to provide an ophthalmologic apparatus that can appropriately perform an initialization operation.

  In order to solve the above problem, the present disclosure is characterized by including the following configuration.

A moving mechanism including a drive unit that moves a movable unit to adjust a relative position between the apparatus body and the subject's eye for examining the subject's eye,
A drive control unit that drives the drive unit according to an operation signal from an operation member operated by an examiner to move the movable unit with respect to the subject's eye;
Initialization setting means for the examiner to preset whether or not to activate an initialization operation of moving the movable portion to the initial position,
With
The drive control unit controls the drive unit to move the movable unit to an initial position when the drive control unit is set in advance to perform an initialization operation by the initialization setting unit.

<Overview>
Hereinafter, an outline of the ophthalmologic apparatus according to the present embodiment will be described. The ophthalmologic apparatus according to the present embodiment includes a moving mechanism including a driving unit that moves a movable unit to adjust a relative position between the apparatus body and the subject's eye, and a control unit that controls driving of the driving unit. May be provided.

  The apparatus main body may include, for example, an optical system for examining the subject's eye, and more specifically, may include an optical system for observing or photographing the subject's eye.

The movable unit may be, for example, a movable unit on which the apparatus main body is mounted. That is, the moving mechanism may be a moving mechanism including a driving unit for moving the apparatus main body with respect to the eyes.
In this case, for example, a mechanism using a hollow motor may be used as a moving mechanism for moving the apparatus main body. Of course, the present invention is not limited to this, and a well-known moving mechanism including a driving unit may be used.

  The movable part may be, for example, a movable part on which a chin rest is mounted. That is, the moving mechanism may be a moving mechanism including a driving unit for moving the eyes with respect to the apparatus main body. In this case, as a moving mechanism for moving the chin rest, a well-known moving mechanism including a drive unit may be used. In this case, the present invention is not limited to the chin receiving moving mechanism, and may be configured to move a forehead rest or the like.

  The control unit may drive the drive unit according to an operation signal from an operation member operated by the examiner to move the movable unit with respect to the subject's eye. The operation member may be, for example, a user interface such as a joystick, a trackball, a touch panel, and a switch mechanism.

  The operation member may include a sensor that detects an operation by the examiner. The control unit may drive the driving unit according to an operation signal from the sensor. Examples of the sensor include a sensor for detecting a rotation operation of a rotation knob of a joystick, a sensor for detecting a tilt operation of an electric joystick, a sensor for detecting a rotation operation of a trackball, and a pressure sensor. Good. The moving mechanism may include a motor.

  The moving mechanism may be a moving mechanism that moves the movable part at least one of up, down, left, right, front and back by driving a motor.

  More specifically, the ophthalmologic apparatus according to the present embodiment includes a vertical movement mechanism including a drive unit that vertically moves the movable unit, a vertical operation member that is operated by the examiner to vertically move the movable unit, A detection unit that detects an operation signal of the member. In this case, the control unit may convert the operation signal detected by the detection unit into a drive signal for moving the movable unit up and down, and drive the drive unit based on the drive signal.

  The ophthalmologic apparatus according to the present embodiment may include an optical system for observing or photographing the subject's eye, and may be, for example, a slit lamp. Further, the ophthalmologic apparatus may be, for example, a fundus photographing apparatus (for example, a fundus camera, an optical coherence tomography). Of course, the present invention is not limited to this, and the present embodiment can be applied to any device having an optical system for inspecting the eye of the subject.

<Initialization operation>
In the present embodiment, an initialization setting unit for the examiner to set in advance whether or not to perform the initialization operation may be provided. The initialization setting unit may be a control unit (processor) of the ophthalmologic apparatus, may be the same as the control unit that controls the driving of the driving unit, or may be another control unit.

  When the initialization operation is set in advance, for example, the control unit controls the driving of the driving unit and moves the movable unit to the initial position as the initialization operation.

  On the other hand, when it is set in advance not to operate the initialization operation, for example, the control unit does not operate the initialization operation. The control unit may wait for an operation signal from an operation member provided to move the movable unit. The operation signal from the operation member may be, for example, an operation signal based on a rotation operation of a rotation knob of a joystick, a tilt operation of an electric joystick, a rotation operation of a trackball, a switch operation, or the like.

  Note that the setting content preset by the initialization setting unit may be stored in the storage unit, and the control unit determines whether to perform the initialization operation based on the setting content stored in the storage unit in advance. May be controlled. If the setting content of the storage unit is set to activate the initialization operation, the initialization operation is performed.

  According to the above-described initialization setting unit, whether or not to perform initialization can be set in advance according to the examiner's preference, and it is not necessary to perform a switch operation each time the initialization is performed. Can be.

  More specifically, when the initialization operation is set to operate, for example, when a plurality of examiners handle the same device, the movable unit can be uniformly arranged at the initial position. (For example, differences in examination positions due to differences in sitting height) can be averaged, and a relatively smooth examination can be performed even by a plurality of examiners. In addition, individual differences (for example, differences in inspection positions due to differences in sitting height) among the subjects can be averaged, and relatively smooth inspection can be performed.

  On the other hand, if the initialization operation is not set to operate, the examiner who is used to the conventional mechanical moving mechanism can follow the same operational feeling as before, and perform a smooth examination for the examiner. . The initialization setting unit is particularly advantageous in a slit lamp in which a mechanical moving mechanism is common.

  As the timing of performing the initialization operation, for example, the control unit may perform the initialization operation when turning on or erasing the power. Here, when the control unit is set in advance to activate the initialization operation, the control unit may control the driving unit when turning on or erasing the power, and move the movable unit to the initial position. The power-on or power-off may be, for example, the time of power-on or within a predetermined time (for example, within a few seconds) from power-on.

  For example, the present apparatus is provided with a power switch for turning on / off the power of the apparatus main body. The control unit controls the power of the apparatus based on a switch signal from the power switch and performs an initialization operation. It may be performed. The power switch may be an operation member operated by the examiner. Further, the power switch may be provided on a table on which the ophthalmic apparatus is placed, and may input a switch signal to the control unit in conjunction with movement of the ophthalmic apparatus on the table. Further, the power supply unit including the power switch may be arranged at a different position from the ophthalmic apparatus and electrically connected to the ophthalmic apparatus, or may be mounted on the apparatus main body of the ophthalmic apparatus. The control unit is not limited to the power switch, and the control unit may perform an initialization operation at a timing when another operation member is operated.

  As the initialization operation, the control unit may move the movable unit to a preset initial position. The initial position may be, for example, an intermediate position in the movable range of the movable section or a limit position, but is not limited to these. Note that the initial position may be arbitrarily set in advance.

  In addition, as a specific configuration of the initialization operation, a position detection sensor for detecting the position of the movable unit may be used. For example, a position detection sensor (for example, an encoder or a potentiometer) that can detect the position of the movable unit in real time may be provided, and the movable unit may be moved to the initial position stored in the storage unit. Further, a position detection sensor (for example, a photo sensor) for detecting that the movable section has reached the position corresponding to the initial position is provided, and the movable section is stopped at the timing when the movable section reaches the initial position. Is also good.

  The initialization setting unit may allow the examiner to set in advance whether to activate the initialization operation based on an operation signal from an operation member operated by the examiner. Here, the initialization setting unit may be electrically connected to the operation member and receive an operation signal from the operation member.

  For example, the initialization setting unit may receive an operation signal from the examiner for setting whether or not to perform the initialization operation, and change the setting content. For example, the initialization setting unit may set the mode between a first mode in which the initialization operation is performed and a second mode in which the initialization operation is not performed.

  As the operation member for performing the setting of the initialization operation in advance, an operation member provided for a purpose different from the setting of the setting of the initialization operation may be used. That is, the operation member for setting the initialization operation may be also used as the operation member used in the inspection. According to the above configuration, the device configuration can be simplified. For example, it is particularly advantageous in a slit lamp having a small electric configuration. Of course, a dedicated switch may be provided as an operation member for setting the initialization operation in advance.

  For example, the initialization setting unit may receive an operation signal from an inspection start switch that generates a trigger for starting an inspection by the apparatus main body, and may set the initialization operation in advance. The inspection start switch may be, for example, an imaging start switch (for example, a release switch) for generating a trigger signal for starting imaging by the imaging optical system provided in the apparatus main body.

  Note that the above-described examination start switch may be provided on any one of the operation members (for example, a joystick) (for example, a joystick) operated by the examiner to move the movable part with respect to the eye to be examined. Alternatively, it may be provided at any position of the device housing. The operation member used in the inspection is not limited to the inspection start switch, and may be, for example, a switch for turning on an illumination light source or a switch for turning on / off the power of the apparatus. .

  Note that an initialization setting mode may be provided for the examiner to preset whether or not to perform the initialization operation. For example, the control unit may determine whether to shift to the initialization setting mode based on a signal from the instruction receiving unit when the power is turned on. More specifically, whether or not to shift to the initialization setting mode may be determined according to the presence or absence of an operation signal from the operation member when the power is turned on. In this case, the presence / absence of the operation signal may be, for example, ON / OFF of a switch when the power is turned on, or may be a continuation time of the switch ON. More specifically, when the operation switch as the operation member is pressed and held for a predetermined time or longer, the mode is shifted to the initialization setting mode, and when the time when the switch is pressed is shorter than the predetermined time, a predetermined normal setting is performed. An operation corresponding to the use may be performed. According to the long press operation, it is easy to distinguish the operation from the normal switch operation, and it is easy to avoid an erroneous operation.

  In the initialization setting mode, whether or not to perform the initialization operation may be switched according to the operation of the switch. Whether or not to perform the initialization operation may be set according to the number of times or the operation time of the switch within a predetermined time.

  By providing the initialization setting mode when the power is turned on, normal operation of the apparatus and operation of the initialization setting can be separated. Therefore, an erroneous operation in normal device operation can be avoided. Note that even if the initialization setting mode is not at the time of turning on the power, a certain effect that the presence or absence of the initialization setting can be set can be obtained.

  In the above description, the examiner can set in advance whether to perform the initialization operation in response to an operation signal from the operation member, but the present invention is not limited to this. That is, the present embodiment can be applied to a case where a setting different from the initialization operation is performed. In addition, the setting of the initialization operation and other settings different from the initialization operation (for example, whether to generate a buzzer sound when the limit is reached, whether to automatically adjust the amount of illumination when the filter is inserted into the optical path, or not) Setting, etc.). For example, a plurality of settings may be made based on an operation signal from the same operation member, and the device configuration can be simplified.

<Notification section>
In the ophthalmologic apparatus according to the present embodiment, a notification unit that notifies the result of setting by the initialization setting unit may be provided. The notification unit may notify the switching between the first mode in which the initialization operation is performed and the second mode in which the initialization operation is not performed. Further, the notification unit may perform notification corresponding to the switched mode content.

  The notification unit may include a sound generation unit, and the control unit may control the sound generation unit and notify the setting contents by sound. In this case, a sound may be emitted when the setting contents are switched in the initialization setting mode. According to this, the notification unit can be simplified.

  The notifying unit may include a visible light source, and the control unit may control the visible light source and notify the setting contents by controlling the light source (for example, turning on / off the light source).

  By providing the notification unit as described above, even if the device does not have a display, the examiner can easily confirm the setting content, the switching of the setting, and the like. In particular, a slit lamp generally has no display and is directly observed by a microscope unit. According to the above-described notifying unit, the setting contents can be notified to the examiner with a simple configuration.

<Example>
Hereinafter, examples according to the present embodiment will be described with reference to the drawings. Here, a slit lamp will be described as an example of the ophthalmic apparatus. FIG. 1 is an external view showing an example of a slit lamp. FIG. 2 is a diagram illustrating an example of an optical system and a control system of the slit lamp. FIG. 3 is a cross-sectional view of the slit lamp of FIG. 1 when viewed along the axis AA.

  The slit lamp 100 is roughly divided into a face support unit 100a and a main body 100b. The face support unit 100a provided on the subject side has a forehead support 11 for supporting the subject's forehead and a chin rest 12 for supporting the chin. The face support unit 100a is fixed to the base 21 via two columns 13. ing. The main body 100b has a movable part 200b whose height in the vertical direction is adjusted with respect to the table 1, and a fixed part 200a that supports the movable part 200b.

  An illumination unit 60, a microscope unit (observation / imaging unit) 70, and a control unit 85 that controls the operation of the entire slit lamp 100 are provided in the housing of the movable unit 200b. An up / down moving mechanism 200 for vertically moving the movable unit 200b with respect to the subject's eye E is provided in the housing of the fixed unit 200b.

  The illumination unit 60 includes a visible light source (illumination light source) 61, a condenser lens 62, a variable aperture 63, a variable slit 64, a projection lens 65, and a prism mirror 66, and illuminates the observation site of the eye E of the subject. The light flux (visible light) from the visible light source 61 passes through the condenser lens 62 and illuminates the variable aperture 63 and the variable slit 64. The light beam that has passed through the aperture 63 and the slit 64 passes through the projection lens 65, is reflected by the prism mirror 66, and is projected on the eye E. Note that a known light source such as a halogen lamp and an LED is used as the visible light source 61.

  The microscope unit 70 includes an objective lens 71, a variable power optical system 72, a half mirror 73, an imaging lens 74, an erect prism 75, a field stop 76, and an eyepiece 77. The light beam reflected by the subject's eye E passes through the objective lens 71, the variable power optical system 72, the half mirror 73, and the imaging lens 74, and is reflected by the erecting prism 75. The light beam reflected by the prism 75 passes through the field stop 76 and the eyepiece 77 and enters the eye F of the examiner. The light beam reflected by the half mirror 73 passes through the relay lens 78 and enters the camera (image pickup device) 80. As the camera 80, a known digital camera equipped with a CCD having sensitivity to visible light is used. The control unit 85 captures an image captured by the camera 80 based on a command signal from a switch 22b described later and causes the monitor 87 to display the captured image.

  The up-down movement mechanism 200 includes a base 21 fixed to the table 1, a housing 21a slidably mounted on the base 21 in a horizontal direction (front-rear, left-right directions), and a housing 21a. The joystick 22 is an operation member that appears outside through an opening (not shown) of the housing 21a, and a drive unit 50 installed in the housing 21a.

  The joystick 22 is inserted into the joystick 22 in a substantially vertical direction (Y direction). The joystick 22 is held by the examiner and is operated to be rotated. And a well-known rotary encoder 22d for detecting the rotation angle of the rotary knob 22a.

  The driving unit 50 has a hollow brushless motor (hereinafter, referred to as a motor) 51 provided rotatably about the rotation axis L1. For details of the vertical movement mechanism 200 of the present embodiment, refer to JP-A-2014-12034.

  The movable section 200b includes a base shaft 23 extending substantially perpendicular to the base 21, an arm 24 supporting the illumination unit 60, and an arm 25 supporting the microscope unit 70. Note that the arms 24 and 25 are individually rotatably supported about the central axis B in the horizontal direction, so that the illumination unit 60 and the microscope unit 70 are individually rotated about the central axis B. .

  Further, in the present embodiment, a position detection unit for detecting the vertical position of the movable unit 200b with respect to the fixed unit 200a is provided in the main unit 100a. For example, the position detecting unit is fixed to the movable unit 200b side and moves up and down in conjunction with the movable unit 200b, and three sensors having an opening fixed to the fixed unit 200a side and through which the plate unit 54 passes. 55a to 55c.

  When the movable portion 200b is moved up and down and the plate portion 54 is detected by all three sensors 55a to 55c, the control portion 85 detects that the movable portion 200b is at the lower limit. When the plate portion 54 is detected only by the sensor 55a, it is detected that the movable portion 200b is at the upper limit. In the present embodiment, when the plate portion 54 is detected by the sensors 55a and 55b and not detected by the sensor 55c, it is assumed that the main body portion 100a is located at an intermediate position of the movable range (the position of an eye level marker not shown).

  When the initialization operation is performed, the movable portion 200b is moved up and down by the driving of the motor 51 until the plate portion 54 is detected by the sensors 55a and 55b, and the initial position is automatically and easily adjusted. As the sensor, a known sensor such as an optical sensor such as a photo interrupter, a magnetic sensor, or a mechanical sensor is used.

  With the above configuration, when the joystick 22 is slid in the horizontal direction (front-back, left-right direction) by the operation of the examiner, the main body 100b moves in the horizontal direction with respect to the subject's eye E by a well-known slide mechanism. On the other hand, when the rotation knob 22a is rotated in the horizontal direction about the shaft 22b, the rotation direction and the rotation speed are detected by the encoder 22d. The controller 85 controls the rotation of the motor 51 based on the output signal from the encoder 22d. When the motor 51 rotates under the drive control of the control unit 85, the male screw 52 moves up and down along the female screw 51b formed in the hollow portion 51a, and the entire movable unit 200b moves up and down.

  The control unit 85 controls the driving of the entire apparatus. The control unit 85 includes the above-described rotary knob 22a, switch 22b, encoder 22d, sensors 55a to 55c, motor 51, sensor 56, monitor 87, a memory 81, a light amount adjustment knob 300, a power switch 400, a sound generation unit 500, Etc. are connected. The memory 81 stores the relationship between the rotation pulse (rotation amount) of the motor 51 and the rotation pulse (rotation amount) of the joystick 22 (rotation knob 22a) detected by the encoder 22d in association with each other. The memory 81 stores the rotation direction of the joystick 22 detected by the encoder 22d and the rotation direction of the motor 51 in association with each other. The control unit 85 may control the rotation amount and the rotation direction of the motor 51 based on an input signal from the joystick 22. Note that the memory 81 may store setting contents related to the initialization operation.

  The light amount adjustment knob 300 is a rotary knob for adjusting the light amount of the visible light source 61. When the light amount adjustment knob 300 is operated, the control unit 85 may adjust the light amount of the visible light source 61. Note that the light amount adjustment knob 300 may also serve as an ON / OFF switch for the visible light source 61. The power switch 400 is an ON / OFF switch for turning on the power of the apparatus, and the control unit 85 may turn ON / OFF the power based on a signal from the power switch 400. Further, the sound generation unit 500 may be used as a sound notification unit.

  FIG. 4 is a flowchart illustrating an example of an operation of the ophthalmologic apparatus according to the embodiment. When the power switch 400 is operated and the power is turned on to the apparatus, the control unit 85 performs a process of determining whether to perform various mode settings in accordance with an operation signal from an operation switch (for example, the switch 22b). . When the operation switch is ON for a predetermined time (for example, 5 seconds) or more, the control unit 85 shifts to various mode settings (described later).

  If the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or more, an operation according to a mode set in the vertical initial setting mode (described later) is performed. Here, when the first mode in which the initialization operation is performed when the power is turned on is set, the control unit 85 moves the main body 100b up and down by driving the motor 51, and based on the detection result of the position detection unit, the movable unit 200b To the initial position. After that, the control unit 85 does not perform the initialization operation, and waits for an operation signal from the sensor 56.

  On the other hand, when the second mode in which the initialization operation is not performed when the power is turned on is set, the control unit 85 does not perform the initialization operation and waits for an operation signal from the sensor 56. In this case, as a result, when the power is turned on, the main body 100b is located at the position where the power was last erased.

  Next, the examiner fixes the face of the subject on the face support unit 100a and aligns the eye E with the main body 100b. With the horizontal movement of the joystick 22, the front, rear, left and right positions of the eye E and the main body 100b are aligned. Next, the height of the main body 100b (the illumination unit 60 and the microscope unit 70) is adjusted with respect to the eye E. When the examiner rotates the rotation knob 22 a of the joystick 22, the rotation amount, the rotation speed, and the rotation direction are detected by the known encoder 22 d, and the detection result is output to the control unit 85. The control unit 85 drives the motor 51 based on the detection result of the encoder 22d.

  When the alignment between the eye E and the main body 100b is completed, the examiner operates the light amount adjustment knob 300 to turn on the visible light source 61 and adjust the light amount of the visible light source 61. Here, the control unit 85 turns on the visible light source 61 of the illumination unit 60 and emits illumination light (luminous flux) to the subject's eye E. Thus, the eye E can be observed through the microscope unit 70. The examiner performs a rotation operation of the rotation knob 22a as necessary while observing the eye E, and performs fine alignment of the moving unit 200b (the illumination unit 60 and the microscope unit 70). Here, when the examiner operates the switch 22b, the control unit 85 captures an image captured by the camera 80 and displays the captured image on the external monitor 87.

  Here, since the slit lamp needs to be finely adjusted with respect to the eyes, it is possible to control according to the needs of the examiner by providing a configuration that can set whether or not to perform the initialization operation. Becomes In addition, slit lamps tend to be turned on / off more frequently than other devices, and it can be said that the merit of providing a configuration capable of selecting whether or not to perform an initialization operation is great.

  Note that the present embodiment can be applied to a case where the slit lamp is placed on the table and the power is turned on / off in conjunction with the sliding of the slit lamp on the table. In this case, a sensor for detecting the position of the slit lamp on the table may be used.

<Vertical initial setting mode>
Here, when the operation switch ON continues for a predetermined time (for example, 5 seconds) or more, the control unit 85 causes the sound generation unit 500 to generate a buzzer. When the operation switch is turned off after the buzzer is generated, the control unit 85 shifts to the vertical initial setting mode.

  When the operation switch is pressed once in the vertical initial setting mode, the control unit 85 sets the first mode in which the initialization operation is performed when the power is turned on, and sounds the buzzer once. As a result, the examiner is notified that the first mode has been set. Further, when the operation switch is pressed once, the control unit 85 sets the second mode in which the initialization operation is not performed when the power is turned on, and sounds the buzzer twice continuously. Thus, the examiner is notified that the second mode has been set. Further, when the operation switch is pressed once, the control unit 85 sets the first mode and sounds the buzzer once.

  That is, the control unit 85 may switch the mode between the first mode and the second mode according to the operation signal of the operation switch. The control unit 85 may notify the set mode using a buzzer. In this case, the examiner can easily confirm the set mode by using different sounds according to the set mode. Note that the different voice may be, for example, the number of buzzers as described above, or may be the type of sound (for example, high sound or low sound) or the volume of sound.

  When the power switch 400 is operated and the power is turned off after the mode setting is performed in the vertical initial setting mode, the vertical initial setting mode ends. Here, if the power is turned on again and the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or more, the control unit 85 performs an operation corresponding to the set mode.

  When the power is turned on as described above, by enabling the mode setting based on the operation of the operation member, the operation switch can be used for other purposes after the mode setting is completed, and the erroneous operation can be reliably performed. Can be avoided.

  The mode notification by voice is particularly useful in a slit lamp whose electric configuration is limited to an illumination light source, a camera, and the like. Although a monitor can be used in the slit lamp, it is only connected to the photographing camera, and only the image captured by the photographing camera is displayed. In addition, there may be a case where a photographing camera is not attached to the slit lamp. The mode notification by voice does not need to complicate the configuration of the electrically simple slit lamp, and can be performed with a simple configuration.

<Other setting modes>
After the power is turned on, if the operation switch is kept on for a predetermined time (for example, 5 seconds) and a buzzer is generated, and if the operation switch is kept on for a predetermined time (for example, 5 seconds), the control unit 85 May emit a buzzer and may shift to a second setting mode different from the vertical initial setting mode.

  The second setting mode may be, for example, a buzzer setting mode for setting a buzzer sound when the main body 100b reaches a vertical movement limit position. In the buzzer setting mode, for example, the control unit 85 switches between a first mode in which the sound generation unit 500 generates a buzzer sound when reaching the limit and a second mode in which no buzzer sound is generated when reaching the limit. May be performed in response to an operation signal of an operation switch. In this case, the magnitude of the buzzer sound may be additionally set.

  After the mode setting is performed in the second setting mode, when the power switch 400 is operated and the power is turned off, the second setting mode ends. Here, if the power is turned on again and the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or more, the control unit 85 performs an operation corresponding to the mode set in the second setting mode.

  As described above, it is possible to shift to the second setting mode different from the setting mode for setting whether or not to perform the initialization operation (for example, the vertical initial setting mode) through the operation of the same operation switch. Thus, a plurality of mode settings can be performed with a simple configuration.

  Further, by providing the buzzer setting mode, it is possible to set the presence or absence or the size of the buzzer sound when the limit is reached. Thus, for example, it is possible to meet the needs of both the examiner who wants to use the buzzer sound and the examiner who feels the buzzer sound troublesome.

FIG. 2 is an external view illustrating an example of a slit lamp according to the embodiment. FIG. 2 is a diagram illustrating an example of an optical system and a control system of the slit lamp according to the embodiment. FIG. 2 is a cross-sectional view of the slit lamp of FIG. 1 when cut along an axis AA. 6 is a flowchart illustrating an example of an operation of the ophthalmologic apparatus according to the embodiment.

85 control unit 200 vertical movement mechanism 200b movable unit 500 sound generation unit

Claims (5)

A moving mechanism including a drive unit that moves a movable unit to adjust a relative position between the apparatus body and the subject's eye for examining the subject's eye,
A drive control unit that drives the drive unit according to an operation signal from an operation member operated by an examiner to move the movable unit with respect to the subject's eye;
Initialization setting means for the examiner to preset whether or not to activate an initialization operation of moving the movable portion to the initial position,
With
The ophthalmologic apparatus, wherein the drive control unit controls the drive unit to move the movable unit to an initial position when the drive control unit is set in advance to activate an initialization operation by the initialization setting unit.   The drive control unit controls the drive unit at the time of power-on or power-off, and moves the movable unit to an initial position when the drive control unit is preset to operate an initialization operation by the initialization setting unit. The ophthalmic apparatus according to claim 1, wherein:   The ophthalmologic apparatus according to claim 1, further comprising a notification unit configured to notify a setting result by the initialization setting unit.   4. The ophthalmologic apparatus according to claim 3, wherein the notifying unit emits a sound when the setting content is switched by the initialization setting unit. The method according to claim 1, wherein the initialization setting unit can set in advance whether to activate the initialization operation based on an operation signal from an operation member operated by an examiner. Any ophthalmic device.