JP2023021844A - Ophthalmologic apparatus - Google Patents

Abstract

To provide an ophthalmologic apparatus capable of causing an operator to objectively grasp positional relationships between an eye to be examined and an acquisition optical system, and improving operability when the operator changes the position and direction of the acquisition optical system.SOLUTION: An ophthalmologic apparatus includes: an acquisition optical system 20 for acquiring eye information on an eye E to be examined; a position changing mechanism 15 and an angle changing mechanism 17 for changing the position and direction of the acquisition optical system 20 with respect to the eye E to be examined by transmitting operation force of an examiner to the acquisition optical system 20; a display 25 that can be visually recognized by the examiner; a trestle position sensor 33 for detecting the position of the acquisition optical system 20; a swinging sensor 34 and an elevation sensor 35 for detecting a rotation angle of the acquisition optical system 20; and a control part 30 for calculating positional relationships between the eye E to be examined and the acquisition optical system 20 on the basis of the position or the rotation angle of the acquisition optical system 20 detected by the trestle position sensor 33, etc. and displaying positional relationship information J indicating the positional relationships on the display 25.SELECTED DRAWING: Figure 3

Description

The present invention relates to an ophthalmic device.

2. Description of the Related Art Conventionally, an ophthalmologic apparatus having an acquisition optical system for acquiring eye information of an eye to be examined has been known. In a conventional ophthalmologic apparatus, an operator such as an examiner performs a touch operation on an observed image of an eye to be inspected displayed on a display having a touch panel function, and moves an acquisition optical system based on the touch operation (for example, Patent Document 1). reference).

Japanese Patent No. 6815722

By the way, in the conventional ophthalmologic apparatus, it is necessary to estimate the positional relationship between the subject's eye and the acquisition optical system based on the observed image of the subject's eye displayed on the display. In other words, when moving the acquisition optical system, the operator must move the acquisition optical system based on the subjective positional relationship estimated from the observed image. Therefore, if the positional relationship between the subject's eye and the acquisition optical system estimated by the operator is different from the actual positional relationship, the acquisition optical system cannot be moved to a desired position. That is, in the conventional ophthalmologic apparatus, the operator cannot objectively grasp the positional relationship between the eye to be examined and the acquisition optical system, and the operability is low when the operator controls the position and orientation of the acquisition optical system. There is

The present invention has been made with a focus on the above problem, and allows the operator to objectively grasp the positional relationship between the eye to be inspected and the acquisition optical system, thereby enabling the operator to control the position and orientation of the acquisition optical system. An object of the present invention is to provide an ophthalmologic apparatus capable of improving operability.

In order to achieve the above object, an ophthalmologic apparatus of the present invention provides an acquisition optical system for acquiring eye information of an eye to be inspected, and an acquisition optical system for the eye to be inspected by transmitting an operator's operating force to the acquisition optical system. an optical system changing mechanism that changes at least one of the position or orientation of the system, a display visible to the operator, a sensor that detects the position or rotation angle of the acquisition optical system, and the acquisition detected by the sensor a control unit that calculates the positional relationship between the eye to be inspected and the acquisition optical system based on the position or rotation angle of the optical system, and displays positional relationship information indicating the positional relationship on the display.

Therefore, the ophthalmologic apparatus of the present invention allows the operator to objectively grasp the positional relationship between the eye to be examined and the acquisition optical system, and improves operability when the operator controls the position and orientation of the acquisition optical system with respect to the eye to be examined. can be improved.

1 is an overall schematic diagram showing the configuration of an ophthalmologic apparatus of Example 1. FIG. 2 is a block diagram showing the control configuration of the ophthalmologic apparatus of Example 1. FIG. FIG. 4 is an explanatory diagram showing a display example of the display of the ophthalmologic apparatus of Example 1; 4 is an explanatory diagram showing positional relationship information displayed on the ophthalmologic apparatus of Example 1. FIG. (a) is a first explanatory diagram in which the display of positional relationship information is changed according to the orientation of the actual acquisition optical system; (b) is a second explanatory diagram in which the display of the positional relationship information is changed according to the actual position of the acquisition optical system; (c) 3rd explanatory drawing which changed the display of positional-relationship information according to the position of the actual acquisition optical system. It is explanatory drawing which shows the modification of the luminous flux image and the optical axis image which are displayed as positional relationship information. FIG. 11 is an explanatory diagram showing a display example of the display of the ophthalmologic apparatus of Example 2; FIG. 11 is an explanatory diagram showing a modification of the positional relationship information displayed on the ophthalmologic apparatus according to the second embodiment;

A mode for carrying out the ophthalmologic apparatus of the present invention will be described based on Example 1 and Example 2 shown in the drawings. In the following description, when viewed from the side facing the subject (examiner side), the left-right direction is indicated by an arrow X, the up-down direction (vertical direction) is indicated by an arrow Y, and the left-right direction and the up-down direction are perpendicular to each other. An arrow Z indicates the direction of movement as the front-rear direction. In the horizontal direction (X-axis direction), the left side of the examiner is the left direction, and the right side of the examiner is the right direction. Furthermore, in the front-rear direction (Z-axis direction), the examiner's side is the front side, and the subject's side is the rear side.

(Example 1)
The configuration of the ophthalmologic apparatus 10 of Example 1 will be described below with reference to FIGS. 1 and 2. FIG.

The ophthalmologic apparatus 10 of Example 1 is a fundus camera, and has an acquisition optical system 20 that acquires a fundus image as eye information of the eye E to be examined.

The ophthalmologic apparatus 10 has a base 11, a mount 12, a main body 13, and a strut 14, as shown in FIG. It should be noted that the acquisition optical system 20 is accommodated in the body portion 13 .

The gantry 12 is installed on the base 11 and supported by the base 11 via a position changing mechanism 15 . The position changing mechanism 15 is a known manual moving mechanism that moves the gantry 12 in the horizontal direction (X-axis direction), the front-rear direction (Z-axis direction), and the vertical direction (Y-axis direction). That is, the position changing mechanism 15 moves the gantry 12 by transmitting the operation force of the examiner, who is the operator, to the gantry 12 . In other words, the position changing mechanism 15 moves the gantry 12 by receiving an operation force according to the moving operation by the examiner. Note that the position changing mechanism 15 can use, for example, a rack and pinion, a slide rail having an outer member and an inner member that slide relative to each other, or the like. The examiner moves and changes the position of the gantry 12 by directly pushing or pulling the gantry 12 in a desired direction out of the left-right direction, the front-rear direction, and the up-down direction. An operating lever or the like may be attached to the gantry 12, and the examiner may move the gantry 12 using the lever or the like.

Further, the gantry 12 is provided with a photographing lever 16, which is an operation unit 26 to be described later, and an operation button 16a is arranged at the tip of the photographing lever 16. As shown in FIG. When the examiner presses the operation button 16a, the control unit 30 outputs a control command for imaging the fundus image of the eye E to be examined to the acquisition optical system 20 .

The body portion 13 is installed on the pedestal 12 and supported by the pedestal 12 via the angle changing mechanism 17 . Here, the body section 13 accommodates the acquisition optical system 20 and the control section 30 (see FIG. 2). An objective lens section 21 and an eyepiece lens section 22 are provided in the main body section 13 . Further, a still camera 23 and an imaging device 24 are detachably connected to the main body 13 .

The angle changing mechanism 17 is a known manual moving mechanism that rotates the main body 13 in the left-right direction and the up-down direction. The angle changing mechanism 17 has a swing mechanism (swing mechanism) 18 and an elevation mechanism (tilt mechanism) 19 .

The swing mechanism 18 transmits the operating force of an examiner, who is an operator, to the main body 13, thereby moving the main body 13 in the left-right direction (X-axis direction) around a preset rotation axis 18a (reference axis). rotate to In other words, the swing mechanism 18 rotates the main body 13 by receiving an operating force in accordance with the rotating operation by the examiner. The swing mechanism 18 can use, for example, a curved rail that is curved in an arc shape to support the main body 13 and a guide member that is attached to the main body 13 and movable along the curved rail. The examiner rotates the body portion 13 by directly pushing or pulling the body portion 13 itself in the left-right direction.

Here, the rotation axis 18a is set as a straight line extending in the vertical direction (Y-axis direction) passing through a predetermined position set behind the acquisition optical system 20 in the front-rear direction (Z-axis direction). The acquisition optical system 20 is aligned so that the axis of rotation 18a coincides with the center position of the pupil of the eye E to be examined. In the state shown in FIG. 1, the center position of the pupil of the subject's eye E coincides with the rotation axis 18a.

The elevation mechanism 19 transmits the operating force of an examiner, who is an operator, to the main body 13, thereby moving the main body 13 vertically (in the Y-axis direction) around a preset central axis 19a (reference line). rotate. In other words, the raising/lowering mechanism 19 rotates the main body 13 by receiving an operation force according to the rotating operation by the examiner. The elevation mechanism 19 can use, for example, a curved arm that is erected from the pedestal 12 and curved in an arc shape, and a guide member that can move along the curved arm. The examiner rotates the body portion 13 by directly tilting the body portion 13 itself in the vertical direction. Alternatively, an operation lever or the like may be attached to the body portion 13 and the body portion 13 may be rotated using the lever or the like.

Further, the center axis 19a is set to a straight line extending in the left-right direction (X-axis direction) through the position where the rotation axis 18a and the optical axis O of the acquisition optical system 20 intersect.

In the ophthalmologic apparatus 10 of the first embodiment, manual operation (push-pull operation) by the examiner causes the gantry 12 to move in the left-right direction, the front-rear direction, and the up-down direction via the position changing mechanism 15, thereby moving the angle changing mechanism. The body portion 13 installed on the mount 12 via 17 is rotated in the left-right direction and the up-down direction. That is, the position of the acquisition optical system 20 housed in the main body 13 is manually changed in the horizontal direction, the front-rear direction, and the vertical direction together with the frame 12 via the position changing mechanism 15, and the angle changing mechanism 17 changes the position of the acquisition optical system 20 in the main body. 13, the horizontal and vertical rotation angles (orientations) are manually changed. Therefore, the position changing mechanism 15 and the angle changing mechanism 17 correspond to an optical system changing mechanism that changes the position and orientation of the acquiring optical system 20 with respect to the subject's eye E by transmitting the operation force of the examiner to the acquiring optical system 20. do.

The strut 14 stands up from the base 11 and extends vertically. The post 14 is provided with a chin support portion 14a, a forehead support portion 14b, and an external fixation light 14c. The chin rest part 14a and the forehead support part 14b fix the position of the subject's (patient's) face with respect to the body part 13 (acquisition optical system 20), that is, the position of the subject's eye E when acquiring the eye information of the subject's eye E. . The chin support part 14a is a place where the subject rests his/her chin, and the forehead support part 14b is a place where the subject rests his/her forehead. The chin rest part 14a and the forehead support part 14b are vertically movable with respect to the base 11, respectively. The external fixation lamp 14c is a light source that fixes the eye E to be examined (fixes the line of sight). In the ophthalmologic apparatus 10 according to the first embodiment, the subject places the chin on the chin support 14a and the forehead on the forehead support 14b, faces the main body 13, and lights the external fixation lamp 14c as appropriate. The eye to be examined E is inspected, observed, photographed, and the like.

The acquisition optical system 20 housed in the main body 13 is an optical system for acquiring eye information (fundus image) of the eye E to be examined. The acquisition optical system 20 includes an illumination optical system for illuminating the fundus oculi Ef, an imaging optical system for observing and photographing the illuminated fundus oculi Ef, an objective lens, an eyepiece lens, and the like.

The illumination optical system forms a ring transparent portion image of observation illumination light on the pupil of the eye E to be inspected in order to use the fundus reflected image from the eye E to be inspected when observing the fundus. In addition, the illumination optical system flashes the xenon lamp to illuminate the fundus Ef when photographing the fundus. In the case of fluorescence imaging, the illumination optical system can switch the exciter filter depending on whether FAG imaging or ICG imaging is selected. Furthermore, the illumination optical system retracts the exciter filter from the optical path in the case of color photography.

The imaging optical system guides the reflected light from the subject's eye E illuminated by the illumination optical system to the imaging medium of the still camera 23 and the imaging device of the imaging device 24 to enable observation and imaging of the fundus oculi Ef.

The objective lens unit 21 is composed of an objective lens (not shown) of the acquisition optical system 20 housed in the lens barrel. The objective lens unit 21 is arranged at a position facing the eye E to be examined. The eyepiece unit 22 is configured by an eyepiece (not shown) of the acquisition optical system 20 housed in the lens barrel. The eyepiece part 22 is a part where the examiner observes the eye E to be examined.

The still camera 23 captures a still image of the fundus Ef of the subject's eye E via the acquisition optical system 20 . The still camera 23 may be a digital camera equipped with a CCD (Charge Coupled Device), a film camera, an instant camera, or the like, depending on the purpose of inspection. The imaging device 24 captures a moving image of the fundus oculi Ef of the subject's eye E via the acquisition optical system 20 . A television camera or the like is used as the imaging device 24 . When the still camera 23 and the imaging device 24 are of a digital imaging type, they can store image data acquired by a recording medium in the ophthalmologic apparatus 10 or an image recording device such as a computer provided outside.

Furthermore, a display 25 is provided on the main body portion 13 . The display 25 is arranged at a position facing the examiner during acquisition of eye information. The display 25 is a display device that can be visually recognized by an examiner who is an operator who operates the positions and orientations of the gantry 12 and the main body 13 . The display 25 is composed of a liquid crystal display device having a touch panel function on a display screen 25a (see FIG. 3).

On the display screen 25a of the display 25, under the control of the control unit 30, an image of the fundus oculi Ef of the subject's eye E based on the image data from the acquisition optical system 20, software keys as the operation unit 26, and the like are appropriately displayed. . Further, positional relationship information J, which will be described later, is displayed on the display screen 25a.

The operation unit 26 is used by an examiner or a subject to operate the chin support 14a, the forehead support 14b, the acquisition optical system 20, and the like, and to perform settings and the like. The operation unit 26 outputs a predetermined operation signal according to the operation to the control unit 30 by being operated by the examiner or the like. The control section 30 outputs a predetermined control command to the chin rest section 14a, the forehead support section 14b, the acquisition optical system 20, etc. based on the operation signal from the operation section 26. FIG. As a result, the operations, settings, etc. of the chin rest 14a and the like are operated.

The operation unit 26 includes the photographing lever 16, an operation button 16a provided at the tip of the photographing lever 16, software keys displayed on the display 25, and the like. The software keys enable operation of various operations such as alignment of the acquisition optical system 20 , setting of various inspection conditions, and adjustment of display contents of the display 25 . Note that the operation unit 26 may also have various buttons provided around the shooting lever 16 and around the display 25 . Further, the operation unit 26 may be composed of an input device such as a keyboard and a mouse.

As shown in FIG. 2, the control unit 30 develops a program stored in the storage unit 31 or the built-in internal memory 32 on, for example, a RAM (Random Access Memory), and according to an operation or the like on the operation unit 26, The operation of the ophthalmologic apparatus 10 is centrally controlled. In the first embodiment, the internal memory 32 is composed of a RAM or the like, and the storage unit 31 is composed of a ROM (Read Only Memory), an EEPROM (Electrically Erasable Programmable ROM), or the like.

In addition to the configuration described above, the ophthalmologic apparatus 10 includes a printer that prints the measurement results in response to a measurement completion signal or an instruction from the examiner or the like, an output unit that outputs the measurement results to an external memory, a server, or the like, and an operation controller. An audio output unit for notifying the situation or the like may be provided as appropriate. Note that the control unit 30 may be provided inside the base 11 or the frame 12 or the like.

Furthermore, the acquisition optical system 20 is connected to the control unit 30 via a cable (not shown) inside the main unit 13 . The control unit 30 controls and drives (including movement) the light source of the illumination optical system and the operation unit of the imaging optical system in the acquisition optical system 20 . Further, the control unit 30 includes a display 25, an operation unit 26 including a photographing lever 16 (operation button 16a) and software keys, a storage unit 31, a gantry position sensor 33, a swing sensor 34, and an elevation sensor 35. , and the distance sensor 36 are connected inside the main body 13 via a cable (not shown). The control unit 30 outputs a predetermined control command to the display 25 in response to an operation signal from the operation unit 26 to control the display 25 . Furthermore, in the ophthalmologic apparatus 10, power is supplied from the commercial power source to the control unit 30, and the control unit 30 supplies power to the above-described connected units.

The gantry position sensor 33 is a sensor that detects the lateral and longitudinal positions of the gantry 12 (acquisition optical system 20) on the base 11 and the vertical position of the gantry 12 (acquisition optical system 20) relative to the base 11. be. The gantry position sensor 33 outputs the detected position information of the gantry 12 to the control unit 30 . The gantry position sensor 33 of the first embodiment has a fixed sensor attached to the base 11 and a moving sensor attached to the gantry 12 and moving together with the gantry 12. 12 is detected in each of the left-right direction, the front-rear direction, and the up-down direction. Note that the gantry position sensor 33 may be a contact sensor or a non-contact sensor.

The swing sensor 34 is a sensor that detects the horizontal rotation angle of the main body 13 (acquisition optical system 20). The swing sensor 34 outputs the detected angle information of the body portion 13 to the control portion 30 . The swing sensor 34 of Example 1 has a fixed sensor on the side of the base 12 that supports the main body 13 and a moving sensor on the side of the main body 13 that moves together with the main body 13. The rotation angle of the body portion 13 in the horizontal direction is detected. Note that the swing sensor 34 may be a contact sensor or a non-contact sensor.

The elevation sensor 35 is a sensor that detects the vertical rotation angle of the main body 13 (acquisition optical system 20). The elevation sensor 35 outputs the detected angle information of the body portion 13 to the control portion 30 . The elevation sensor 35 of the first embodiment has a fixed sensor on the side of the base 12 that supports the main body 13, and a moving sensor on the side of the main body 13 that moves together with the main body 13. The rotation angle of the portion 13 in the vertical direction is detected. The elevation sensor 35 may be a contact sensor or a non-contact sensor.

The distance sensor 36 is a sensor that detects the distance from the main body 13 (acquisition optical system 20) to the subject's eye E, that is, the distance therebetween. The distance sensor 36 outputs the detected distance information to the control section 30 . The distance sensor 36 of Example 1 detects the linear distance from the objective lens part 21, which is the part of the main body part 13 protruding most toward the subject, to the eye E to be examined. The distance sensor 36 is provided, for example, on the surface of the main body 13 facing the subject. The distance sensor 36 of the first embodiment includes a light source such as an LED or an LD and a light receiving element inside, and the light emitted from the light source and reflected from a measurement target (for example, the subject's face) is received by the light receiving element. It receives light, converts it to distance, and outputs it. As long as the distance sensor 36 detects the distance (interval) from the main body 13 to the subject's eye E, it may be, for example, a sensor using ultrasonic waves or infrared rays, a stereo camera, or a distance sensor with other configurations. However, it is not limited to the configuration of the first embodiment.

Display on the display 25 controlled by the control unit 30 of the first embodiment will be described below.

In the ophthalmologic apparatus 10 of Example 1, a first display area 27a and a second display area 27b are set on the display screen 25a of the display 25 by the control unit 30, as shown in FIG. Here, the control unit 30 displays the image F of the fundus oculi Ef of the subject's eye E acquired by the acquisition optical system 20 in the first display area 27a. In addition, the control unit 30 displays the positional relationship information J indicating the positional relationship between the subject's eye E and the acquisition optical system 20 in the second display area 27b. The size and arrangement of the first display area 27a and the second display area 27b can be arbitrarily set. For example, the control unit 30 may set the second display area 27b on the entire surface of the display screen 25a. Further, the control unit 30 may display any image other than the image F, information, software keys, or the like in the first display area 27a. Further, the control unit 30 may display arbitrary images, information, software keys, etc. in areas other than the first display area 27a and the second display area 27b.

The “positional relationship information J” is information that objectively represents the actual position of the acquisition optical system 20 with respect to the actual position of the eye E to be examined. The positional relationship information J includes the horizontal distance from the subject's eye E to the acquisition optical system 20, the front-back distance from the subject's eye E to the acquisition optical system 20, and the vertical direction from the subject's eye E to the acquisition optical system 20. , the horizontal rotation angle of the acquisition optical system 20 about the rotation axis 18a, the vertical rotation angle of the acquisition optical system 20 about the central axis 19a, and the like. calculated. The control unit 30 obtains the distance information and rotation angle information necessary for calculating the positional relationship information J from the detection results of the gantry position sensor 33 , swing sensor 34 , elevation sensor 35 and distance sensor 36 .

The positional relationship information J is displayed by the first graphic image 41 shown in FIG. 4 in the first embodiment. The first graphic image 41 has a first icon 41A representing an eyeball model representing the subject's eye E and a second icon 41B representing an apparatus model representing the ophthalmologic apparatus 10 including the acquisition optical system 20 .

And the first icon 41A and the second icon 41B are shown in isometric projection. Here, the "isometric projection method" is a method of drawing a tilted three-dimensional object so that the angles formed in the three directions of front and back, left and right, and up and down are equiangular (120 degrees). Therefore, the first graphic image 41 displayed by the isometric projection method is basically a perspective view of the subject's eye E and the ophthalmologic apparatus 10 viewed obliquely from above.

In addition, in Example 1, the first icon 41A is an eyeball model image shown in an isometric projection method that schematically shows the eye E to be examined in which the outer shell of the eye to be examined E is divided in the horizontal direction and the interior of which is hollow. displayed by In FIG. 4, the portion corresponding to the crystalline lens of the eye E to be examined is denoted by α, and the portion corresponding to the fundus oculi Ef of the eye E to be inspected is denoted by β. Also, the first icon 41A is not limited to the one shown in FIG. good. In addition, the first icon 41A may be an eyeball model image that displays the outer shell of the eye E to be inspected semi-transparently and schematically shows the entire internal structure or the left half or right half of the eye E to be inspected. It may be an eyeball model image in which a part (for example, the upper quarter) is broken to schematically show the internal structure. In the examples shown in FIGS. 3 and 4, the blood vessel image of the left half of the subject's eye E is superimposed and displayed on the eyeball model, but the blood vessel image may not be displayed.

On the other hand, the second icon 41B is an isometric projection that schematically shows the ophthalmologic apparatus 10 including the acquisition optical system 20, the position changing mechanism 15, the photographing lever 16, the swing mechanism 18 of the angle changing mechanism 17, and the elevation mechanism 19. is displayed by the device model image indicated by . In FIG. 4, in the second icon 41B, the portion showing the acquisition optical system 20 is denoted by reference numeral 101, the portion showing the position changing mechanism 15 is denoted by reference numeral 102, and the portion showing the photographing lever 16 is denoted by reference numeral 103. , the portion indicating the swing mechanism 18 is denoted by reference numeral 104, and the portion indicating the elevation mechanism 19 is denoted by reference numeral 105. As shown in FIG. In addition, the device model image displayed as the second icon 41B may have a shape different from that of the actual ophthalmologic device 10 so that the examiner can easily grasp the positional relationship information J, or may be partially enlarged or enlarged. It may be reduced or deformed. In the example shown in FIG. 4, the acquisition optical system 20 is reduced and schematically shown in order to improve visibility.

The second icon 41B may be displayed in the same scale as the first icon 41A, or may be displayed in an enlarged or reduced scale at an arbitrary scale instead of the same scale. In the example shown in FIG. 4, the second icon 41B is displayed in a reduced size with respect to the first icon 41A, and the first icon 41A imitating the subject's eye E is displayed in a relatively enlarged size. is displayed in a relatively reduced size. By displaying the second icon 41B at a non-same size as compared to the first icon 41A, the examiner can easily grasp the positional relationship information J. FIG.

Further, the control unit 30 superimposes an image showing the current state of opacity distribution of the lens (hereinafter referred to as "lens opacity distribution image") on the portion α corresponding to the lens of the eye E to be examined in the first icon 41A. may be displayed. The opacity distribution of the lens is detected using a known device (for example, a Shack-Hartmann sensor, see Japanese Patent No. 6775337, etc.). Furthermore, the opacification position of the lens is specified by a known specifying method (for example, a method using optical coherence tomography (OCT) scanning, see Japanese Patent Application Laid-Open No. 2019-170710).

Further, the control unit 30 may superimpose and display an image showing the current state of the retina (hereinafter referred to as a “retinal image”) on a portion β corresponding to the fundus oculi Ef of the eye E to be examined in the first icon 41A. good. The retinal image is combined with the first icon 41A, which is the eyeball model image, based on a known technique (see, for example, Japanese Unexamined Patent Application Publication No. 2020-156622).

Note that the lens opacification distribution image and the retinal image may be displayed in an arbitrary area within the second display area 27b and not superimposed on the first icon 41A (so-called lantern display or balloon display).

Furthermore, as the positional relationship information J, as shown in FIG. is superimposed on the first graphic image 41 and displayed.

Here, the luminous flux image γ shows how light travels between the subject's eye E and the acquisition optical system 20 . Also, the optical axis image δ indicates the direction of light output from the acquisition optical system 20 . In general, a fundus camera uses ring illumination in order to remove reflections from the cornea and lens of the eye E to be examined. Therefore, the luminous flux of photographing light passes through the center of the pupil of the subject's eye E, but the luminous flux of illumination light does not pass through the center of the pupil. The luminous flux image γ superimposed and displayed on the first graphic image 41 may represent the luminous flux of illumination light or the luminous flux of photographing light.

Further, the control unit 30 can display the first graphic image 41 by rotating it around a predetermined position set in the second display area 27b. To rotate the first graphic image 41, the examiner may touch the first graphic image 41 or detect a software key (not shown) displayed at an arbitrary position on the display screen 25a. A user may perform a touch operation. Also, a software key for rotating the first graphic image 41 may be displayed superimposed on the first graphic image 41 .

By rotating and displaying the first graphic image 41, it is possible to change the viewing direction of the first graphic image 41 to a desired direction while maintaining the positional relationship between the subject's eye E and the acquisition optical system 20. . Therefore, the examiner can visually recognize the positional relationship between the subject's eye E and the acquisition optical system 20 from a desired angle.

Further, when the main body 13 is rotated in the left-right direction or the up-down direction, the control unit 30 of the first embodiment follows the change in the actual rotation angle of the main body 13 as shown in FIG. 5A(a). The display of the second icon 41B of the first graphic image 41 is changed. Further, when the position of the gantry 12 is changed, the control unit 30 causes the first graphic image 41 to follow the change in the actual position of the gantry 12 as shown in FIGS. 5A(b) and 5B(c). to change the display of the second icon 41B. Thereby, the ophthalmologic apparatus 10 of the first embodiment can display the positional relationship between the subject's eye E and the acquisition optical system 20 in real time.

As shown in FIGS. 5A(a) to 5B(c), the control unit 30 controls a vertical line (turning reference line) L1 passing through the turning point G of the eyeball and a rotation center of the swing mechanism 18. The axis 18a may be superimposed on the first graphic image 41 and displayed. In this case, the examiner can easily recognize the degree and direction of positional deviation between the subject's eye E and the acquisition optical system 20 based on the deviation between the vertical line L1 and the rotation axis 18a.

The operation of the ophthalmologic apparatus 10 of the first embodiment will be described below.

The ophthalmologic apparatus 10 of the first embodiment includes an acquisition optical system 20, a position changing mechanism 15 and an angle changing mechanism 17, a display 25, a gantry position sensor 33, a swing sensor 34, an elevation sensor 35, a distance sensor 36, a control a portion 30;

Here, the acquisition optical system 20 acquires the eye information of the eye E to be examined. In addition, the position changing mechanism 15 transmits the operating force of the examiner, who is the operator, to the gantry 12 to change the positions of the acquisition optical system 20 in the left-right direction, the front-rear direction, and the up-down direction. The angle changing mechanism 17 transmits the operating force of an examiner, who is an operator, to the main body 13 to change the horizontal and vertical rotation angles (orientations) of the acquisition optical system 20 . Further, the display 25 has a display screen 25a that can be visually recognized by an examiner who is an operator. Further, the gantry position sensor 33 detects the lateral and longitudinal positions of the gantry 12 (acquisition optical system 20 ) on the base 11 and the vertical position of the gantry 12 with respect to the base 11 . The swing sensor 34 detects the lateral rotation angle of the main body 13 (acquisition optical system 20). The elevation sensor 35 detects the vertical rotation angle of the main body 13 (acquisition optical system 20). The distance sensor 36 detects the distance from the main body 13 (acquisition optical system 20) to the eye E to be examined.

Based on the detection results of the gantry position sensor 33, the swing sensor 34, the elevation sensor 35, and the distance sensor 36, the control unit 30 generates positional relationship information J indicating the positional relationship between the subject's eye E and the acquisition optical system 20. is calculated, and the calculated positional relationship information J is displayed on the display screen 25 a of the display 25 .

Therefore, in the ophthalmologic apparatus 10 of the first embodiment, the operator can determine the positional relationship between the subject's eye E and the acquisition optical system 20 using the positional relationship information J displayed on the display 25. An examiner can be made to grasp objectively. By objectively grasping the positional relationship between the subject's eye E and the acquisition optical system 20, the examiner can accurately recognize the positional relationship between the subject's eye E and the acquisition optical system 20. FIG. Further, it is possible to improve the operability when the examiner pushes or pulls the pedestal 12 or the main body 13 to change the position or rotation angle (orientation) of the acquisition optical system 20 .

In addition, in the ophthalmologic apparatus 10 of the first embodiment, the control unit 30 includes a first icon 41A representing an eyeball model representing the eye to be examined E, and a second icon 41B representing an apparatus model representing the ophthalmologic apparatus 10 including the acquisition optical system 20. is displayed by a first graphic image 41 showing the positional relationship information J in isometric projection.

As a result, the ophthalmologic apparatus 10 of the first embodiment allows the examiner to grasp the positional relationship between the subject's eye E and the ophthalmologic apparatus 10 including the acquisition optical system 20 when viewed from above. Therefore, the examiner can easily recognize the outline of the positional relationship between the eye E to be examined and the acquisition optical system 20 .

Further, in the ophthalmologic apparatus 10 of the first embodiment, the control unit 30 causes the display 25 to display, as the positional relationship information J, a luminous flux image γ representing the luminous flux between the subject's eye E and the acquisition optical system 20 . Therefore, the ophthalmologic apparatus 10 of the first embodiment allows the examiner to objectively grasp the state of progress of light between the subject's eye E and the acquisition optical system 20 . As a result, the examiner can objectively recognize the luminous flux between the subject's eye E and the acquisition optical system 20 and then change the position and rotation angle of the acquisition optical system 20, thereby improving the operational accuracy. can be done.

Furthermore, in the ophthalmologic apparatus 10 of Example 1, the control unit 30 causes the display 25 to display an optical axis image δ indicating the optical axis O of the acquisition optical system 20 as the positional relationship information J. FIG. Therefore, the ophthalmologic apparatus 10 of the first embodiment allows the examiner to objectively grasp the direction of the optical axis O directed from the acquisition optical system 20 to the eye E to be examined. As a result, the examiner can objectively recognize the position where the optical axis O of the acquisition optical system 20 passes over the eye to be examined E, and then change the position and rotation angle of the acquisition optical system 20, thereby improving the operation accuracy. can be improved.

In particular, in Example 1, both the luminous flux image γ and the optical axis image δ are superimposed on the first graphic image 41 and displayed. Therefore, the examiner can easily understand the state of the light flux between the eye to be examined E and the acquisition optical system 20 and the orientation of the optical axis O from the acquisition optical system 20 .

It should be noted that the light flux image γ and the optical axis image δ do not necessarily have to be displayed superimposed on the first graphic image 41 . In other words, the ophthalmologic apparatus 10 allows the examiner to grasp the state of the light flux and the direction of the optical axis O. For example, as shown in FIG. It may be indicated by a geometric figure such as an ellipse. In FIG. 6 , the subject's eye E is represented by a circle 200 and the acquisition optical system 20 is represented by a square 201 . Further, in FIG. 6 as well, the portion corresponding to the lens of the eye E to be examined is denoted by α, and the portion corresponding to the fundus Ef of the eye E to be inspected is denoted by β.

Furthermore, in the ophthalmologic apparatus 10 of Example 1, the lens opacification distribution image may be superimposed and displayed on the portion α corresponding to the lens of the eye E to be examined in the first icon 41A. In this case, the examiner can objectively grasp the positional relationship between the opacity distribution of the lens and the luminous flux or the optical axis O. Thereby, the examiner can change the position and orientation of the acquisition optical system 20 so as to avoid the opacified region of the lens of the eye E to be inspected and acquire the fundus image.

Further, in the ophthalmologic apparatus 10 of Example 1, a retinal image may be superimposed and displayed on a portion β corresponding to the fundus oculi Ef of the eye E to be examined in the first icon 41A. In this case, the examiner can objectively grasp the state of the retina of the fundus oculi Ef and the positional relationship between the luminous flux or the optical axis O and the retina of the fundus oculi Ef. Accordingly, the examiner can accurately observe or photograph a desired position of the fundus oculi Ef of the eye to be examined E according to the state of the retina, and can appropriately acquire desired eye information (a fundus image). .

The image superimposed on the first graphic image 41 may be an image other than the lens opacification distribution image and the retina image. For example, a transillumination image or a B-scan line image of an OCT image may be used as the image superimposed on the portion α corresponding to the lens. As the image superimposed on the portion β corresponding to the fundus oculi Ef, an image of the retina captured by an infrared camera, a retinal scan image by OCT, or a retinal projection image by OCT may be used. When a B-scan image of an OCT image is used as the retinal image, it is possible to grasp the situation of the target image in real time.

Further, in the ophthalmologic apparatus 10 of Example 1, the display 25 is provided in the main body 13 that accommodates the acquisition optical system 20 . That is, the display 25 is arranged in an environment in which the examiner can directly confirm the positional relationship between the eye E to be examined and the acquisition optical system 20 . As a result, the examiner who visually recognizes the positional relationship information J displayed on the display 25 can directly compare the displayed positional relationship information J with the actual positional relationship between the subject's eye E and the acquisition optical system 20, and perform the positional relationship. The changing mechanism 15 and the angle changing mechanism 17 can be operated. Therefore, more accurate operation is possible.

In addition, in the ophthalmologic apparatus 10 of the first embodiment, the controller 30, the display 25, and various sensors (the gantry position sensor 33, the swing sensor 34, the elevation sensor 35, and the distance sensor 36) are arranged inside the main body 13 (not shown). Connected via cable. Therefore, compared with the case where the control unit 30 and the like are connected via a wireless communication network such as wide area wireless communication or near field wireless communication, the transmission/reception speed of various signals is faster, and the transmission/reception of signals can be performed stably. .

(Example 2)
In the ophthalmologic apparatus 10 of Example 1, an example in which the positional relationship information J is displayed by the first graphic image 41 is shown, but it may be displayed by another display. That is, in the ophthalmologic apparatus 10 of Example 2, the positional relationship information J is displayed by the second graphic image 44 as shown in FIG. The configuration of the ophthalmologic apparatus 10 according to the second embodiment is the same as that of the ophthalmologic apparatus 10 according to the first embodiment, so the description thereof will be omitted.

The second graphic image 44 includes a third icon 44C representing an eyeball model representing the subject's eye E, and a fourth icon 44D representing an apparatus model representing the ophthalmologic apparatus 10 including the acquisition optical system 20. It is an image shown by law. Here, the "third triangle method" is a three-dimensional object placed in the third triangle, the front view projected on the front vertical plane, the plan view projected on the upper horizontal plane, and the left vertical plane It is a drawing method drawn by a left side view, etc.

That is, the third icon 44C is composed of a plan view, a right side view, and a front view of an eyeball model that schematically shows the eye E to be examined in which the outer shell of the eye to be examined E is divided in the horizontal direction and the interior of which is hollow. ing. A fourth icon 44D is a plane of an apparatus model schematically showing the ophthalmologic apparatus 10 including the acquisition optical system 20, the position changing mechanism 15, the photographing lever 16, the swing mechanism 18 of the angle changing mechanism 17, and the elevation mechanism 19. It consists of a figure, a right side view and a front view. Therefore, in the second graphic image 44 displayed by the third trigonometry, a plan view looking down on the subject's eye E and the ophthalmologic apparatus 10 from above, a right side view looking from the right side, and a front view looking from the examiner's side. Become. In FIG. 7, in the fourth icon 44D, the portion showing the acquisition optical system 20 is denoted by reference numeral 101, the portion showing the position changing mechanism 15 is denoted by reference numeral 102, and the portion showing the photographing lever 16 is denoted by reference numeral 103. Reference numeral 104 is attached to the portion indicating the swing mechanism 18, and reference numeral 105 is attached to the portion indicating the elevation mechanism 19. As shown in FIG.

Thus, in the ophthalmologic apparatus 10 of Example 2, the positional relationship information J is displayed by the second graphic image 44 showing the third icon 44C and the fourth icon 44D in the third trigonometry. Therefore, the examiner viewing the display 25 is made to grasp in detail the distance from the acquisition optical system 20 to the eye to be examined E and the positional relationship between the eye to be examined E and the acquisition optical system 20, such as the rotation angle of the acquisition optical system 20. be able to.

In the second graphic image 44 shown in FIG. 7, the eyeball model representing the eye to be examined E and the device model representing the ophthalmologic device 10 are each displayed in three views, a front view, a plan view, and a side view. It is not necessary to display by three figures. The third icon 44C and the fourth icon 44D of the second graphic image 44 are images showing the eyeball model and the device model using the third trigonometry, and are either a front view, a plan view, a left side view, or a right side view. It may be represented by one or more. That is, the second graphic image 44 is composed only of, for example, a third icon 44C showing a plan view of an eyeball model representing the eye to be examined E, and a fourth icon 44D showing a plan view of an apparatus model representing the ophthalmologic apparatus 10. may

Further, the control unit 30 superimposes and displays a lens opacification distribution image on a portion of the third icon 44C corresponding to the lens, or superimposes and displays a retinal image on a portion of the third icon 44C corresponding to the fundus oculi Ef. You can Further, the control section 30 may superimpose the light flux image γ or the optical axis image δ on the second graphic image 44 and display the same.

Further, as the positional relationship information J, the control unit 30 displays a first scale image 45a and a second scale image 45b imitating a scale indicating the rotation angle of the acquisition optical system 20 with respect to the subject's eye E, as shown in FIG. You may let Here, the first scale image 45a indicates the rotation angle of the acquisition optical system 20 in the horizontal direction. Also, the second scale image 45b indicates the rotation angle of the acquisition optical system 20 in the vertical direction.

In the example shown in FIG. 8, the first scale image 45a and the second scale image 45b are scales indicating the rotation angle about the pupil center position of the eye E to be examined. are facing each other (the optical axis O is orthogonal to the fundus oculi Ef), the angle is zero. In addition, in the example shown in FIG. 9, the first scale image 45a and the second scale image 45b are displayed overlapping the second graphic image 44. As shown in FIG. Note that the first scale image 45a and the second scale image 45b are

Furthermore, as the positional relationship information J, as shown in FIG. 8, the control unit 30 displays a first numerical image 46a and a second numerical image 46b indicating numerical values indicating the rotation angle of the acquisition optical system 20 with respect to the subject's eye E. may Here, the first numerical image 46a indicates the rotation angle of the acquisition optical system 20 in the horizontal direction. Also, the second numerical image 46b indicates the rotation angle of the acquisition optical system 20 in the vertical direction.

In the example shown in FIG. 8, the first numerical image 46a and the second numerical image 46b are obtained when the subject's eye E and the acquisition optical system 20 face each other (when the optical axis O is perpendicular to the fundus oculi Ef). Zero degrees.

In this way, by displaying the positional relationship information J using the first scale image 45a and the second scale image 45b and the first numerical image 46a and the second numerical image 46b, the distance from the acquisition optical system 20 to the subject's eye E can be Also, the examiner can grasp the rotation angle of the acquisition optical system 20 more accurately.

The ophthalmologic apparatus of the present invention has been described above based on the first and second embodiments, but the specific configuration is not limited to these embodiments, and the scope of the claims is as follows. Design changes, additions, etc. are permitted as long as they do not deviate from the gist of the invention.

In the ophthalmologic apparatus 10 of Example 1, an example is shown in which the lens opacification distribution image and the retina image may be displayed superimposed on the first graphic image 41 . Further, an image (luminous flux image γ) showing the current state of the light flux between the subject's eye E and the acquisition optical system 20, and an image (optical axis image δ) showing the current state of the optical axis O of the acquisition optical system 20. is displayed. Here, the lens opacification image, the retina image, the luminous flux image γ, and the optical axis image δ are part information of the eye E to be inspected that indicates the state of a part of the eye E to be inspected. Furthermore, in the ophthalmologic apparatus 10 of Example 2, an example of displaying the current rotation angle of the acquisition optical system 20 with respect to the eye E to be examined has been shown. However, the various information displayed on the display 25 by the control unit 30 is not limited to these.

That is, the control unit 30 causes the display 25 to display, for example, an image showing the current state of the anterior segment of the eye to be inspected E and an image showing the current state of the posterior segment of the eye to be inspected E, as part information of the eye E to be inspected. , an image or the like showing the current state of the vitreous body of the eye E to be examined may be displayed. The control unit 30 may also display the current distance from the subject's eye E to the acquisition optical system 20 .

Furthermore, the control unit 30 may cause the display 25 to display not only the current state such as the opacity distribution of the lens and the retinal region, but also the target state of the site information of the eye E to be examined. That is, the control unit 30 displays the target state of the anterior segment of the eye to be examined E, the target state of the posterior segment of the eye to be examined E, and the target states of various parts of the eye to be examined E, such as the vitreous body, the crystalline lens, and the retinal region. 25 may be displayed on the display screen 25a. In addition, the control unit 30 may display the target rotation angle of the acquisition optical system 20 with respect to the subject's eye E and the target distance from the subject's eye E to the acquisition optical system 20 .

Then, the control unit 30 enlarges or reduces the region information of the subject's eye E displayed on the display 25, changes the center position of the display, or the like, according to touch operations by the examiner, operations of the operation unit 26, or the like. may be displayed on the display 25 again. That is, for example, when the examiner performs a pinch-out operation on the position of the papilla of the fundus image of the eye to be examined E, the display is switched to an enlarged image of the fundus image centering on the position of the touched papilla, or the When the position of the papilla of the fundus image of the eye to be examined E is pinched in, the reduced image of the fundus image centered on the touched papilla position may be displayed. Furthermore, when the examiner performs a single tap operation on the position of the papilla of the fundus image of the eye to be examined E, the fundus image may be changed and displayed centering on the position of the touched papilla.

In this way, by changing the magnification ratio and the center position of the displayed information according to the examiner's operation on the site information of the eye to be examined E, the site of the eye to be examined E that the examiner wants to check in detail, The part of the subject's eye E whose outline is desired can be displayed in a state desired by the examiner as needed.

In addition, in the ophthalmologic apparatus 10 of the first embodiment, the control unit 30, the display 25, and various sensors (the gantry position sensor 33, the swing sensor 34, the elevation sensor 35, and the distance sensor 36) are arranged inside the main unit 13. An example of connection via a cable (not shown) is shown. However, it is not limited to this. The control unit 30, the display 25, and various sensors may be connected via wide-area wireless communication such as a mobile phone network or short-range wireless communication. In this case, it becomes possible to carry the display 25 and install the display 25 at an arbitrary position. Therefore, the examiner can move the gantry 12 and the main body 13 while viewing the positional relationship information J displayed on the display 25, thereby improving operability. Further, for example, even if it is difficult for the examiner to visually recognize the position of the eye to be examined E, the examiner does not need to actually check the position of the eye to be examined E, and the positional relationship information J displayed on the display 25 does not need to be checked. Based on this, the movement operation of the gantry 12 and the body portion 13 can be easily performed.

Here, for example, there is LTE (Long Term Evolution) as an example of a standard for wide area wireless communication using a mobile phone network. Examples of standards for short-range wireless communication include BLE (Bluetooth (registered trademark) Low Energy) communication and Wi-Fi (registered trademark). It should be noted that it is difficult to clearly distinguish between wide area wireless communication and short-range wireless communication. Distance wireless communication is assumed.

A display 25 is connected to the control unit 30 and various sensors via wide-area wireless communication or the like, and the examiner, who is the operator, directly confirms the positional relationship between the subject's eye E and the acquisition optical system 20 on the display 25. It may be installed in an environment (for example, a remote location, etc.) where it is not possible to Even in this case, the examiner or the like who visually recognizes the positional relationship information J displayed on the display 25 issues an instruction to the examinee or a person near the acquisition optical system 20 to can be moved or rotated as desired.

Furthermore, the control unit 30, the display 25, and various sensors may be connected via a management server. In this case, various signals transmitted and received between the control unit 30, the display 25, and various sensors can be collectively managed by the management server. This also makes it possible to collectively manage a plurality of ophthalmologic apparatuses 10 .

Further, in the ophthalmologic apparatus 10 of the first embodiment, an example of displaying the first graphic image 41, the light flux image γ, and the optical axis image δ as the positional relationship information J is shown. Further, in the ophthalmologic apparatus 10 of the second embodiment, the positional relationship information J includes the second graphic image 44, the first scale image 45a and the second scale image 45b, the first numerical image 46a and the second numerical image 46b, is displayed. Here, at least one of these display modes indicating the positional relationship information J is displayed. etc., can be arbitrarily selected and displayed.

Further, when displaying the positional relationship information J using a graphic image, not only the graphic image shown by the isometric projection method or the third trigonometric method, but also the graphic image shown by, for example, the perspective projection method or the oblique projection method is used. may

Furthermore, arbitrary images may be selectively switched and displayed, such as switching and displaying the first graphic image 41 and the second graphic image 44, for example. The selection and switching of the display is performed by displaying a selection menu on the display 25 and making a selection by the examiner by touch operation, or by the examiner operating the operation unit 26 such as a keyboard and making a selection. .

Further, in the ophthalmologic apparatus 10 of the first embodiment, the rotation axis 18a is set to coincide with the center position of the pupil of the eye to be examined E by alignment, and the acquisition optical system 20 is swung and raised about the center position of the pupil. An example of doing However, if the acquisition optical system 20 is swung and raised around the rotation axis 18a and the center axis 19a as the center of rotation, the position where the rotation axis 18a and the center axis 19a coincide within the eye E to be examined. may be set as appropriate, and is not limited to the configuration of each embodiment. For example, the axis of rotation 18a may be set to coincide with the point of rotation or the apex of the cornea of the eye E to be examined. It can be made to perform a supine motion.

In addition, the ophthalmologic apparatus 10 of Example 1 has a position changing mechanism 15 and an angle changing mechanism 17 as optical system changing mechanisms, and the acquisition optical system 20 moves in the left-right direction, the front-back direction, and the up-down direction with respect to the subject's eye E, respectively. An example in which it is possible to move and rotate in the left-right direction and the up-down direction is shown. However, it is not limited to this. The ophthalmic apparatus to which the present invention is applied may be, for example, an ophthalmic apparatus having only the position changing mechanism 15 as the optical system changing mechanism, or an ophthalmic apparatus having only the angle changing mechanism 17 as the optical system changing mechanism. Further, the ophthalmologic apparatus may be such that one of the position changing mechanism 15 and the angle changing mechanism 17 is electrically operated and the other is manually driven.

Further, the ophthalmologic apparatus 10 of the first embodiment is a fundus camera having the acquisition optical system 20 that acquires the fundus image as the eye information of the eye E to be examined. However, the present invention is not limited to this, and the present invention can be applied to any ophthalmologic apparatus having an acquisition optical system movable with respect to the eye E to be examined. An autokeratrefractometer or autokeratometer for measuring force (visual acuity), or a tonometer for measuring intraocular pressure of the eye to be examined E as eye information may be used.

10 ophthalmic apparatus 11 base 12 mount 13 main body 15 position changing mechanism (optical system changing mechanism)
17 angle change mechanism (optical system change mechanism)
18 swing mechanism 18a rotation axis (reference axis)
19 Elevation mechanism 19a Central axis (reference axis)
20 Acquisition optical system 25 Display 25a Display screen 26 Operation unit 27b Second display area 30 Control unit J Positional relationship information 41 First graphic image 41A First icon 41B Second icon γ Luminous flux image δ Optical axis image 44 Second graphic image 44C Third icon 44D Fourth icon 45a First scale image 45b Second scale image 46a First numerical image 46b Second numerical image E Eye to be examined Ef Fundus O Optical axis

Claims (6)

an acquisition optical system for acquiring eye information of an eye to be inspected;
an optical system changing mechanism that changes at least one of the position and orientation of the acquisition optical system with respect to the eye to be inspected by transmitting an operation force of an operator to the acquisition optical system;
a display viewable by the operator; and
a sensor that detects the position or rotation angle of the acquisition optical system;
A control unit that calculates a positional relationship between the subject eye and the acquisition optical system based on the position or rotation angle of the acquisition optical system detected by the sensor, and displays positional relationship information indicating the positional relationship on the display. and,
An ophthalmic device comprising: An ophthalmic device according to claim 1, wherein
The positional relationship information includes a first graphic image showing a first icon representing the eye to be inspected and a second icon representing the acquisition optical system in isometric projection, a third icon representing the eye to be inspected and the acquisition optical system. a second graphic image showing a fourth icon showing the system by the third trigonometry, a luminous flux image showing the luminous flux between the eye to be inspected and the acquisition optical system, an optical axis image showing the optical axis of the acquisition optical system, A scale image imitating a scale indicating at least one of a distance from the subject eye to the acquisition optical system or a rotation angle of the acquisition optical system with respect to the subject eye, a distance from the subject eye to the subject eye to the acquisition optical system, or the subject eye a numerical image that numerically indicates at least one of the rotation angles of the acquisition optical system with respect to the ophthalmologic apparatus. In the ophthalmic device according to claim 1 or claim 2,
The control unit, the display, and the sensor are connected via a cable, via wide area wireless communication, via short-range wireless communication, or via a management server. An ophthalmic device, characterized in that it is connected to: In the ophthalmic device according to any one of claims 1 to 3,
The display is installed in either an environment in which the operator can directly check the positional relationship or an environment in which the operator cannot directly check the positional relationship. An ophthalmic device characterized by: In the ophthalmic device according to any one of claims 1 to 4,
The control unit displays at least one of an anterior segment of the eye to be inspected, a posterior segment of the eye to be inspected, a vitreous body of the eye to be inspected, a crystalline lens of the eye to be inspected, and a retinal region of the eye to be inspected on the display. part information of the eye to be inspected, a light flux between the eye to be inspected and the acquisition optical system, an optical axis of the acquisition optical system, a distance from the eye to be inspected to the acquisition optical system, and the acquisition optical system for the eye to be inspected and/or the current or target state of the orientation of the ophthalmic device. An ophthalmic device according to claim 5, wherein
The ophthalmologic apparatus, wherein the control unit enlarges, reduces, or changes a display center position of the region information displayed on the display, and causes the display to display the information again.

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