JP2010148589A - Ophthalmic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compound type ophthalmic apparatus housing an intraocular pressure measuring part and the other eye characteristic measuring part inside the casing of an apparatus body, reducing the moving amount of the apparatus body as much as possible. <P>SOLUTION: In the ophthalmic apparatus 10, the apparatus body 12 holding the intraocular pressure measuring part 22 and an eye characteristic measuring part 21 switchably at a position corresponding to an inspection light axis Le inside the casing 12a is supported freely movably by a body driving mechanism 18 on a fixed rack 11. In the apparatus body 12, the intraocular pressure measuring part 22 can be moved to an intraocular pressure measuring position Sp2 and also be moved back from the intraocular pressure measuring position to the inner part of the casing 12a. When the intraocular pressure measuring part 22 is moved back from the intraocular pressure measuring position Sp2 and is moved back to a safety position, the body driving mechanism 18 can perform the movement of the apparatus body 12 from a position corresponding to one eye E to be examined to a position corresponding to the other eye E to be examined on the fixed rack 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an ophthalmologic apparatus capable of performing intraocular pressure measurement on an eye to be examined, and more particularly to an ophthalmologic apparatus suitable for a composite configuration capable of performing a plurality of types of examinations on an eye to be examined.

  Usually, in ophthalmologic examination, when a plurality of types of examinations are performed, independent dedicated ophthalmologic apparatuses corresponding to the examinations are used. However, since examination rooms and examination rooms are limited spaces, there are limits to the placement of many devices, and the subject and examiner must move each time a different examination is performed. Therefore, time and labor are required for the inspection work. For this reason, a composite ophthalmic apparatus capable of performing a plurality of types of examinations has been put into practical use. As such a composite ophthalmic apparatus, an apparatus capable of measuring intraocular pressure and measuring other eye characteristics is available. is there.

Here, in the composite ophthalmic apparatus, it is desirable that a plurality of types of examinations can be performed without changing the placement position of the subject's face from the viewpoint of reducing the burden on the subject. For this reason, as a combined ophthalmologic apparatus capable of measuring intraocular pressure and other eye characteristics, an intraocular pressure measurement unit and other ocular characteristic measurement units are arranged up and down in the housing of the apparatus body, and An arrangement in which a reflective optical member is detachably inserted between the optometry and the intraocular pressure measurement unit is considered (for example, see Patent Document 1). In this composite-type ophthalmologic apparatus, it is possible to perform measurement at the intraocular pressure measurement unit by retracting the reflective optical member, and it is possible to perform measurement at other eye characteristic measurement units by inserting the reflective optical member. Therefore, the type of examination can be switched without forcing the subject to move.
JP 2004-313758 A

  By the way, since the working distance in which the intraocular pressure of the subject's eye can be measured is extremely short, the intraocular pressure measuring unit measures the intraocular pressure without causing the housing to interfere (contact) the subject's nose or the like facing the device body. In order to perform, it is necessary to make a part protrude from the housing. Here, in the above-described ophthalmologic apparatus, when measuring the intraocular pressure of each of the left and right eye of the subject, the subject fixed to the placement position in order to appropriately correspond the intraocular pressure measurement unit to the eye to be examined. The main body of the device is moved left and right with respect to the examiner. If a part of the intraocular pressure measurement unit protrudes from the housing, the intraocular pressure measurement unit (especially the protruding part) ) Interferes with the subject (especially the nose). Therefore, in the above-described ophthalmologic apparatus, after measuring the intraocular pressure of either the left or right eye to be examined, the apparatus body is moved backward (moved away from the subject) and then moved left and right, and again the apparatus body It was set to move forward.

  For this reason, in the above-described ophthalmologic apparatus, when the intraocular pressure of the left and right eyes to be measured is continuously measured, the apparatus main body is moved greatly, and thus the examination time increases. Further, in the ophthalmologic apparatus, a driving mechanism is provided on the fixed base so that the apparatus main body is movably supported. That is, the movement of the apparatus main body has been automated, but when the movement amount of the apparatus main body increases, the driving apparatus moves to the driving apparatus. Will increase the load.

  The present invention has been made in view of the above circumstances, and is a composite ophthalmic apparatus in which an intraocular pressure measurement unit and other eye characteristic measurement units are housed in a housing of the apparatus main body. An object of the present invention is to provide an ophthalmologic apparatus capable of reducing the amount of movement as much as possible.

  According to the first aspect of the present invention, the intraocular pressure measurement unit that measures the intraocular pressure by spraying a fluid on the cornea of the subject's eye to deform the cornea and measuring the intraocular pressure in the housing in which the inspection optical axis is set is provided. An apparatus main body that can be held at a position corresponding to the inspection optical axis is an ophthalmologic apparatus that is movably supported by a main body driving mechanism on a fixed gantry. In the apparatus main body, the intraocular pressure measurement unit includes the inspection light. The device can be moved to an intraocular pressure measurement position partially protruding from the housing in a state corresponding to an axis, and can be retracted from the intraocular pressure measurement position toward the inside of the housing. In the main body, in relation to the fixed gantry, a detecting means capable of detecting whether the tonometry part is retracted from the tonometry position and to a predetermined safe position for the subject. Provided, and the main body drive mechanism is connected to the intraocular pressure measurement unit. When the intraocular pressure measurement is performed, when the detection signal indicating that the intraocular pressure measurement unit is retracted from the intraocular pressure measurement position and retracted to the safe position is received from the detection unit, The apparatus main body can be moved from a position corresponding to one eye of the subject on the fixed mount to a position corresponding to the other eye to be examined.

  A second aspect of the present invention is the ophthalmic apparatus according to the first aspect, wherein the intraocular pressure measurement unit is configured to move the intraocular pressure from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing. It is retracted to the safe position by the movement of the measuring unit.

  A third aspect of the present invention is the ophthalmic apparatus according to the first aspect, wherein the intraocular pressure measurement unit is configured to move the intraocular pressure from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing. It is retracted to the safe position by the movement of the measuring unit and the movement of the apparatus main body in the backward direction on the fixed mount.

  In the invention according to claim 4, the intraocular pressure measuring unit that measures the intraocular pressure by spraying a fluid on the cornea of the subject's eye to deform the cornea is provided in the casing in which the inspection optical axis is set. An apparatus main body that can be held at a position corresponding to the inspection optical axis is movably supported by a main body driving mechanism on a fixed base, and the movement of the apparatus main body by the main body driving mechanism and the switching operation in the apparatus main body are performed. An ophthalmologic apparatus controlled by a control unit, wherein in the apparatus main body, the tonometry part can be moved to a tonometry position partially protruding from the housing in a state corresponding to the examination optical axis In addition, the device main body can be retracted from the intraocular pressure measurement position toward the inside of the housing, and the intraocular pressure measurement unit is connected to the fixed mount in the apparatus main body. And the prescribed for the subject Detection means capable of detecting whether or not the safety position has been retracted is provided, and the control unit measures the intraocular pressure of the other eye from the state of measuring the intraocular pressure of the one eye of the subject. When switching to a state in which the tonometry is measured, in the apparatus main body, the step of retracting the tonometry part from the tonometry position toward the inside of the housing; and the tonometry part measures the tonometry After receiving from the detection means a detection signal indicating that it has been retracted from the position and retracted to the safe position, the main body drive mechanism corresponds to one of the subject's eyes on the fixed mount. A step of moving the apparatus main body from a position to be moved to a position corresponding to the other eye to be examined, and in the apparatus main body, the tonometry part retracted inward of the housing to the tonometry position And the process to advance, And performing.

  A fifth aspect of the present invention is the ophthalmic apparatus according to any one of the first to fourth aspects, wherein the apparatus main body receives reflected light from the eye to be examined and inspects eye characteristics. And an intraocular pressure measurement unit configured to be independent of the intraocular pressure measurement unit, and the intraocular pressure measurement unit are held in the housing so as to be switchable to a position corresponding to the inspection optical axis. It is characterized by that.

  According to the ophthalmologic apparatus of the present invention, in order to switch from the state of measuring the intraocular pressure of one subject's eye to the state of measuring the intraocular pressure of the other subject's eye, first, the intraocular pressure in the apparatus body It is necessary to move the intraocular pressure measurement unit set as the measurement position to the inside of the housing and move it to a safe position, and then move the apparatus main body to a position corresponding to the other eye to be examined on the fixed mount. Therefore, it is possible to suppress the movement amount of the apparatus main body on the fixed mount while preventing the intraocular pressure measurement unit from interfering (contacting) with the subject (particularly the nose). .

  In addition to the configuration described above, the intraocular pressure measurement unit is retracted to the safe position by the movement of the intraocular pressure measurement unit from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing. Then, since the movement amount of the apparatus main body on the fixed base can be set from the position corresponding to one eye to be examined to the position corresponding to the other eye, the movement amount of the apparatus main body can be further suppressed. it can.

  In addition to the configuration described above, the intraocular pressure measurement unit is configured to move the intraocular pressure measurement unit from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing, and the backward direction on the fixed mount. If the device main body is moved back to the safe position, the time required to move the tonometry part to the safe position can be further shortened.

  Also, an intraocular pressure measurement unit that measures intraocular pressure by spraying a fluid on the cornea of the subject's eye and deforming the cornea is positioned corresponding to the inspection optical axis in a housing in which the inspection optical axis is set. Is supported by a main body drive mechanism on a fixed base, and movement of the apparatus main body by the main body drive mechanism and switching operation in the apparatus main body are controlled by a control unit. In the apparatus main body, the intraocular pressure measurement unit can be moved to an intraocular pressure measurement position partially protruding from the housing in a state corresponding to the inspection optical axis. The device can be retracted from the pressure measurement position toward the inside of the housing, and the device main body has the tonometry unit retracted from the tonometer measurement position in association with the fixed gantry and the covered object. Retreat to a predetermined safe position for the examiner Detection means capable of detecting whether or not it has been detected, and the control unit measures the intraocular pressure of the other eye from the state of measuring the intraocular pressure of the one eye of the subject When switching to, in the apparatus main body, the step of retracting the tonometry part from the tonometry position toward the inside of the housing; and the tonometry part is retracted from the tonometry position. And a detection signal indicating that the safety position is retracted to the safe position from the detection means, the main body drive mechanism is then moved from the position corresponding to the one eye of the subject on the fixed base to the other. Moving the apparatus main body to a position corresponding to the eye to be examined, and moving the intraocular pressure measurement unit retracted inward of the housing to the intraocular pressure measurement position in the apparatus main body Depending on the ophthalmic device For example, after the intraocular pressure measurement unit, which has been set as the intraocular pressure measurement position in the main body of the device, is retracted to the inside of the housing and moved to the safe position, the main body of the device corresponds to the other eye to be examined on the fixed base. The state in which the intraocular pressure of the other eye is measured from the state of measuring the intraocular pressure of one eye of the subject by being moved to the position where the intraocular pressure measurement unit is again set as the intraocular pressure measurement position. Therefore, the movement amount of the apparatus main body on the fixed base can be suppressed while preventing the intraocular pressure measurement unit from interfering (contacting) with the subject (particularly the nose).

  In addition to the above-described configuration, the apparatus main body includes an optical characteristic measuring unit configured to receive an optical system that receives reflected light from the eye to be examined and inspects an eye characteristic, and is configured independently of the intraocular pressure measurement unit; If the intraocular pressure measurement unit is held in the housing so as to be switchable to a position corresponding to the inspection optical axis, the amount of movement of the apparatus main body, which is significantly heavy in configuration, can be suppressed. Is more effective.

  Embodiments of an ophthalmologic apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic perspective view showing an example of an external configuration of an ophthalmologic apparatus 10 according to the present invention. FIG. 2 is an explanatory diagram schematically showing the internal configuration of the ophthalmologic apparatus 10. FIG. 3 is an explanatory diagram for explaining the positional relationship between the working distance and the apparatus main body 12 in intraocular pressure measurement and eye characteristic measurement. FIG. 3 (a) shows the eye characteristic measurement for the right eye E (R). (B) shows a state in which the eye characteristic measuring unit 21 is set to the working distance Dr with respect to the left eye E (L), and (c) shows a state in which the working distance Dr is shown. FIG. 5D shows a state in which the intraocular pressure measurement unit 22 is set to the working distance Dt with respect to the eye E (L), and FIG. 5D shows the working pressure Dt to the working distance Dt with respect to the right eye E (R). It shows how it was done.

  The ophthalmologic apparatus 10 is a composite type ophthalmologic apparatus capable of performing a plurality of types of examinations, and includes a fixed base 11 and an apparatus main body 12 provided thereabove as shown in FIG. The fixed base 11 is provided with a joystick 13 and a measurement switch 14 on one side, and a chin rest 15 and a forehead pad 16 on the other side. The apparatus main body 12 is provided with a display 17 on the surface on which the joystick 13 and the measurement switch 14 are provided.

  In this ophthalmologic apparatus 10, the subject performs a plurality of types of examinations with the chin resting on the chin rest 15 while the forehead abuts the forehead 16 against the main body 12. Yes. For this reason, the chin rest 15 and the forehead support 16 function as holding means for holding the face of the subject in the ophthalmologic apparatus 10.

  The joystick 13 is operated by an examiner (operator) for adjusting the positions of the chin rest 15 and the forehead rest 16 and for moving the apparatus main body 12 which can be moved as described later. The measurement switch 14 is operated when starting the examination of the eye E (see FIG. 3).

  In the ophthalmologic apparatus 10, basically, the examiner is positioned on the side where the joystick 13 and the measurement switch 14 are provided, and various types of the eye E to be examined held by the chin rest 15 and the forehead rest 16. Perform an inspection. When the subject is opened, the examiner may be located on the side of the ophthalmologic apparatus 10. Here, in the following and each drawing, the vertical direction is the up-down direction (see arrow Y), and the direction in which the examiner and the subject are facing each other orthogonally to the up-down direction is the front-back direction (see arrow Z). The direction orthogonal to the direction and the front-rear direction is the left-right direction (see arrow X).

  The fixed base 11 accommodates a main body drive mechanism 18, a control mechanism 19, and a power supply circuit, although not shown. The fixed base 11 holds the apparatus main body 12 through the main body drive mechanism 18 so as to be movable in three dimensions, that is, up and down, front and rear, and left and right. Since the main body drive mechanism 18 is the same as the conventional configuration, detailed description thereof is omitted. The main body drive mechanism 18 measures the eye E using the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 which are set as measurement positions (see Sp1 and Sp2 in FIG. 3 and the like) as will be described later. The apparatus main body 12 is moved with respect to the fixed base 11 to a position suitable for the subject held by the chin rest 15 and the forehead pad 16. The control mechanism 19 includes a control unit 19a and a storage unit 19b. The control unit 19a appropriately reads a control program, various data, and the like stored in the storage unit 19b, and later described an eye characteristic measurement unit 21 and an intraocular pressure. Measurements by the measuring unit 22, various movements by the main body driving mechanism 18 and the switching driving mechanism 30 (the driving base 31 and the vertical driving unit 33), which will be described later, and the display on the display 17 are comprehensively controlled.

  The apparatus main body 12 is provided with a display 17. The display 17 is located on the side where the joystick 13 and the measurement switch 14 are provided, that is, on the side where the examiner is located. The display 17 displays an image such as an anterior segment image of the eye E and various examination information (examiner information, examination conditions, examination results, etc.). Needless to say, the display 17 may be a touch panel. As described above, when the display 17 is a touch panel, software keys for various operations in the ophthalmologic apparatus 10 can be displayed and various operations can be executed by operating the software keys. In the first embodiment, various switches 17 a are provided around the display 17 for alignment with the eye E, setting various inspection conditions, adjusting the display 17, and the like.

  When an operation for executing alignment is performed on the various switches 17a, the control unit 19a drives and controls the main body drive mechanism 18, whereby the alignment with respect to the eye E is automatically performed. The alignment during the measurement of the various examinations is as follows: the apparatus main body 12 is moved with respect to the subject held by the chin rest 15 and the forehead pad 16, that is, the fixed mount 11, the main body drive mechanism 18 is in the front-rear direction (see arrow Z), It is performed by moving in the vertical direction (see arrow Y) and the horizontal direction (see arrow X). Since this alignment is the same as the conventional configuration and operation, a detailed description thereof will be omitted.

  In the first embodiment, the ophthalmologic apparatus 10 can perform intraocular pressure measurement and other eye characteristic measurements, and a measurement unit 20 for these measurements is accommodated in the apparatus main body 12 (see FIG. 2).

  The measurement unit 20 includes an eye characteristic measurement unit 21 and an intraocular pressure measurement unit 22. The eye characteristic measuring unit 21 and the intraocular pressure measuring unit 22 are configured independently of the optical structure and the mechanical structure for the respective measurement functions. Stored.

  Although not shown, the eye characteristic measurement unit 21 basically measures (inspects) the eye characteristic using an optical system that receives reflected light from the eye E to be examined. In the first embodiment, the eye characteristic measurement unit 21 measures eye refractive power (sphericity, astigmatism, astigmatism axis angle, etc.), and projects an annular index on the fundus of the eye E, for example. The reflected image is detected photoelectrically, and the refraction characteristic is obtained from the change of the image opposite to the index. Since the optical configuration, the driving mechanism, and the electric circuit of the eye characteristic measurement unit 21 are the same as the conventional configuration, detailed description thereof is omitted. The eye characteristic measurement unit 21 may perform corneal shape measurement (examination) in addition to or instead of the eye refractive power measurement, or may measure other eye characteristics. Other eye characteristic measurements include visual acuity test, corneal thickness test, corneal topography test, color vision test, visual field test, anterior segment imaging, corneal endothelium imaging, fundus imaging, OCT (Optical Coherence Tomography) test, SLO (Scanning Laser). (Ophthalmoscope) inspection, ultrasonic inspection, radiation inspection, and the like.

  The intraocular pressure measurement unit 22 measures the intraocular pressure of the eye E, and is composed of a non-contact tonometer. The intraocular pressure measurement unit 22 emits an air (fluid) pulse having a known pressure-time function to the cornea C (see FIG. 3) of the eye E from the nozzle 22b, and the applanation or deformation state of the cornea C is photoelectrically detected. , And the pressure of the eye E is measured by converting (calculating) the pressure, temporal change, and applanation (deformation) state of the cornea. Since the mechanical configuration, the optical configuration, the driving mechanism, and the electric circuit of the intraocular pressure measurement unit 22 are the same as the conventional configuration, detailed description thereof is omitted.

  The intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 are configured to inspect the eye E through an inspection opening 12 b provided in a housing 12 a that forms the outer shape of the apparatus main body 12. The inspection opening 12b is provided corresponding to the chin rest 15 and the forehead pad 16 (see FIG. 1) provided on the other side of the fixed mount 11. For this reason, in the ophthalmologic apparatus 10, the inspection optical axis Le along the front-rear direction (see arrow Z) passing through the center (or the vicinity thereof) of the inspection opening 12 b is set in the apparatus main body 12.

  Here, in the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 mounted on the measurement unit 20, a predetermined working distance is set for each. The working distance is a distance set in accordance with the configuration of each measurement optical system or the like in order to appropriately execute each inspection. In the first embodiment, the measurement optical system casing of each measurement unit is used. The distance from the tip position of the nozzle 22b (in the case of the intraocular pressure measurement unit 22) to the eye E is the working distance.

  As shown in FIGS. 3C and 3D, the working distance Dt of the intraocular pressure measurement unit 22 needs to apply an air pulse emitted from the nozzle 22b to the cornea C of the eye E to be examined. It is set shorter than the working distance Dr of the portion 21. As an example, the working distance Dt is 11 mm, and the working distance Dr is 35 mm.

  Further, since the working distance Dt of the intraocular pressure measurement unit 22 is set short because it is necessary to apply the air pulse discharged from the nozzle 22b to the cornea C of the eye E as described above, an intraocular pressure measurement state to be described later Then, by making the nozzle 22b of the intraocular pressure measurement unit 22 protrude from the inspection opening 12b of the housing 12a of the apparatus main body 12, it is possible to set the working distance Dt from the tip of the nozzle 22b to the eye E to be examined. This is held by the chin rest 15 and the forehead support 16 when the working distance Dt is set from the tip of the nozzle 22b to the eye E by bringing the device main body 12 (its housing 12a) closer to the subject. Since the subject is generally facing the device main body 12 (housing 12a), the subject (particularly the nose) interferes (contacts) the device main body 12 (housing 12a). It depends.

  In the ophthalmologic apparatus 10, as described above, the intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 are configured to inspect the eye E through the inspection opening 12b of the housing 12a of the apparatus body 12. Inside the apparatus main body 12, the measurement unit 20 is placed in the eye so that the measurement position (see reference numerals Sp1 and Sp2) is a predetermined position relative to the inspection opening 12b while the optical axis is aligned with the inspection optical axis Le. The positions of the pressure measurement unit 22 and the eye characteristic measurement unit 21 can be switched. In the first embodiment, when the eye characteristic measurement unit 21 is set to the measurement position, as shown in FIGS. 3A and 3B, the distal end position of the housing 21a is fitted into the inspection opening 12b, and the distal end The position is flush with the housing 12a. This is defined as an eye characteristic measurement position Sp1. In addition, when the intraocular pressure measurement unit 22 is set to the measurement position, as shown in FIGS. 3C and 3D, the nozzle 22b extends to the inspection opening 12b so that the tip protrudes from the inspection opening 12b by a predetermined amount. Mated. This is defined as an intraocular pressure measurement position Sp2. In the first embodiment, the tip position of the housing 21a of the eye characteristic measuring unit 21 set to the eye characteristic measuring position Sp1 and the tip position of the housing 22a of the tonometry unit 22 set to the intraocular pressure measuring position Sp2 (that is, the nozzle) 22b) is the difference between the working distance Dr and the working distance Dt, and the numerical value as an example is 24 mm (= 35 mm-11 mm). It becomes. In the first embodiment, the difference is the amount of protrusion of the intraocular pressure measurement unit 22 (its nozzle 22b) from the apparatus main body 12 (housing 12a) at the intraocular pressure measurement position Sp2.

  As described above, in the ophthalmic apparatus 10 according to the first embodiment, when the eye characteristic measurement unit 21 is set to the eye characteristic measurement position Sp1, the tip position of the casing 21a is flush with the casing 12a of the apparatus body 12. Therefore, by setting the distance between the apparatus main body 12 in the state in which the eye characteristic measuring unit 21 is set to the eye characteristic measuring position Sp1 and the eye E to be examined as the working distance Dr, the eye characteristic measuring unit 21 is set as the working distance Dr. That is, the eye characteristic measurement state can be obtained.

  Further, in the first embodiment, the position of the housing 12a of the apparatus main body 12 in the eye characteristic measurement state is set as a safe position based on the chin rest 15 and the forehead support 16, that is, the fixed mount 11 (see FIG. 1). This safe position refers to the chin when viewed from the tip of the nozzle 22b of the intraocular pressure measurement unit 22 protruding from the inspection opening 12b of the housing 12a of the apparatus body 12 (the position closest to the subject in the apparatus body 12). An interval (safety distance) that can surely avoid contact with the subject (particularly the nose) held by the receptacle 15 and the forehead pad 16 (see FIG. 1) is secured between the subject and the subject. This is the position that enables this. From this, in Example 1, the apparatus main body 12 (the housing 12a) is in the safe position in the eye characteristic measurement state in which the eye characteristic measurement unit 21 set as the eye characteristic measurement position Sp1 is the position of the working distance Dr. In this state, even if it is moved in the left-right direction on the fixed base 11, it does not come into contact with the subject (particularly the nose) held on the chin rest 15 and the forehead rest 16 (see FIG. 1). For this reason, in Example 1, the intraocular pressure measurement unit 22 is placed in the apparatus main body 12 (housing 12a) so that the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is flush with the casing 12a of the apparatus main body 12. By retreating, it is possible to reliably prevent the tip from coming into contact with the subject (particularly the nose) held by the chin rest 15 and the forehead support 16 even when moved in the left-right direction on the fixed mount 11.

  In addition to this, in the ophthalmologic apparatus 10 of the first embodiment, as described above, the tip position of the housing 21a of the eye characteristic measurement unit 21 that is the eye characteristic measurement position Sp1 and the intraocular pressure measurement position Sp2 are set. The difference between the distal end position of the housing 22a of the intraocular pressure measurement unit 22 (that is, the distal end position of the nozzle 22b) in the front-rear direction (see arrow Z) is the difference between the working distance Dr and the working distance Dt. Therefore, when the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2 in the apparatus main body 12 in the eye characteristic measurement state, the intraocular pressure measurement unit 22 is at a position that is the working distance Dt with respect to the eye E. The intraocular pressure measurement state is entered without changing the position of the apparatus main body 12 on the fixed mount 11 in the front-rear direction (see arrow Z).

  In the ophthalmologic apparatus 10, as described above, the measurement unit 20 can switch between a state in which the eye characteristic measurement unit 21 is set to the eye characteristic measurement position Sp1 and a state in which the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2. It is made into the composition. This configuration will be described below. FIG. 4 is an explanatory diagram for explaining the relationship between the guide groove holes 34 of the both support plate portions 32 of the switching drive mechanism 30 and the guide protrusions 35 of the eye characteristic measurement portion 21 of the measurement unit 20. In FIG. 4, for ease of understanding, the intraocular pressure measurement unit 22 of the measurement unit 20 and the vertical drive unit 33 of the switching drive mechanism 30 are omitted. FIG. 5 is an explanatory diagram for explaining a switching operation in the ophthalmologic apparatus 10 (measurement unit 20), where (a) shows an intraocular pressure measurement state, and (b) shows an intraocular pressure measurement from the intraocular pressure measurement state. The state where the unit 22 (measurement unit 20) is retracted is shown, (c) shows the transition state from the state of (b) to the eye characteristic measurement state, and (d) shows the eye characteristic measurement state.

  As shown in FIG. 2, the measurement unit 20 is configured such that the optical axis of the eye characteristic measurement unit 21 and the optical axis of the intraocular pressure measurement unit 22 are parallel to each other so as to be parallel to the inspection optical axis Le. . The measurement unit 20 includes an eye characteristic measurement unit 21 provided on a unit base 23 and an intraocular pressure measurement unit 22 provided on the unit base 23. In the measurement unit 20, the eye characteristic measurement unit 21 is held so as to be movable in the front-rear direction (see arrow Z) on the unit base 23, and the intraocular pressure measurement unit 22 is fixed to the unit base 23. Is retained. The unit base 23 is held by the switching drive mechanism 30 so as to be movable in the front-rear direction (see arrow Z) within the apparatus main body 12 and to be movable in the vertical direction (see arrow Y) within the apparatus main body 12. Yes.

  As shown in FIGS. 2, 4 and 5, the switching drive mechanism 30 supports the measurement unit 20 on the inner side of the apparatus body 12, and includes a drive base 31, a pair of support plate portions 32, and upper and lower portions. And a drive unit 33.

  The drive base 31 is fixedly provided on the apparatus main body 12, and holds the pair of support plate portions 32 so as to be slidable in the front-rear direction and to change the movement position. In the drive base 31, the range of movement of the pair of support plates 32 in the front-rear direction starts from the position where the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp <b> 2 in the apparatus main body 12. The amount of movement in the front-rear direction of the tonometry part 22 is set up to the position where the tip of 22b is retracted inward of the housing 12a. A drive mechanism for fluctuations of the two support plate portions 32 in the drive base 31 can be formed using, for example, a DC motor or the like as a drive source, although illustration is omitted. The operation of this drive mechanism is controlled centrally by a control unit 19a (see FIG. 2) provided on the fixed base 11.

  In this drive base 31, position detection for detecting whether or not both support plate portions 32 of the drive base 31 have been moved beyond the predetermined fluctuation amount from the frontmost position (subject side) to the rear side. Means 31a (see FIG. 2) is provided. For example, although not shown, the position detection unit 31a can be configured using a photosensor or the like. Specifically, in the first embodiment, as will be described later, the intraocular pressure measurement unit 22 set at the intraocular pressure measurement position Sp2 is configured such that the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is flush with the housing 12a of the apparatus body 12. When the position is retreated, the tonometry part 22 is retreated to the safe position, and the amount of retreat can be set in advance. What is necessary is just to be able to judge whether the part 32 became the said reverse amount. Note that the position detection means 31 a may be capable of detecting the positions of the both support plate portions 32 in the drive base 31. In this case, the position detection means 31a outputs a detection signal indicating the positions of the both support plate portions 32 in the drive base 31 to the control portion 19a (see FIG. 2). For this reason, the control unit 19a can detect the amount of movement of the apparatus main body 12 on the fixed mount 11 by driving a drive mechanism (not shown) of the drive base 31, and is stored in the storage unit 19b. The amount of movement can be determined by appropriately reading the data of the amount of movement performed.

  When the position detection means 31a detects that both support plate portions 32 of the drive base 31 have been moved beyond the predetermined fluctuation amount from the most forward position (subject side) to the rear side, detection to that effect. The signal is output to the control unit 19a (see FIG. 2). Therefore, the control unit 19a (see FIG. 2) can determine whether or not the intraocular pressure measurement unit 22 set at the intraocular pressure measurement position Sp2 has been retracted by a predetermined amount.

  The pair of support plate portions 32 extend along a plane including a substantially vertical direction (see arrow Y) and a front-back direction (see arrow Z) so as to make a pair when viewed in the left-right direction (see arrow X). It is comprised by the plate-shaped member. Both support plate portions 32 are movable in the front-rear direction by the drive base 31 while maintaining the facing state. Both support plate portions 32 hold the unit base 23 (measurement unit 20) so as to be movable in the vertical direction. Each of the support plate portions 32 is provided with a guide groove hole 34.

  In this example, both guide groove holes 34 penetrate the support plate portions 32 in the left-right direction, and extend along a plane including the up-down direction and the front-rear direction. Both guide groove holes 34 have an upper vertical portion 34a, an inclined portion 34b, and a lower vertical portion 34c.

  The upper vertical portion 34a is located on the uppermost and rear side in each support plate portion 32, and extends in the vertical direction. The lower vertical portion 34c is located on the lowermost and front side in each support plate portion 32, and extends in the vertical direction. The inclined portions 34b are extended in each support plate portion 32 so as to be inclined (inclined with respect to the front-rear direction and the vertical direction) so as to connect the lower end of the upper vertical portion 34a and the upper end of the lower vertical portion 34c. Yes.

  In both guide groove holes 34, the displacement amount seen in the front-rear direction at the extended position of the upper vertical portion 34 a and the lower vertical portion 34 c is the amount of movement of the eye characteristic measurement unit 21 in the front-rear direction in the measurement unit 20. Is set to Further, in both guide groove holes 34, the amount of displacement seen in the vertical direction at the extended position of the upper vertical portion 34 a and the lower vertical portion 34 c is the amount of vertical movement of the measurement unit 20 within the apparatus main body 12. Is set.

  A pair of guide protrusions 35 (only one is shown in FIGS. 2 and 5) provided in the eye characteristic measurement unit 21 of the measurement unit 20 are inserted into both the guide grooves 34. The pair of guide protrusions 35 extend from the eye characteristic measurement unit 21 in the left-right direction when viewed from the measurement unit 20 held and supported by the both support plate portions 32, and the corresponding guide groove holes 34 is slidable.

  In the measurement unit 20 having the eye characteristic measurement unit 21, the unit base 23 is supported by a pair of support plate portions 32 so as to be slidable in the vertical direction, so that it can be moved in the vertical direction. In order to control the position of the unit base 23 in the vertical direction, a vertical drive unit 33 is provided.

  The vertical drive unit 33 is provided on the pair of support plate portions 32, and moves the unit base 23 along the vertical movement direction by the support of the pair of support plate portions 32, and the upper end position in the movement range ( The unit base 23 is stopped at the vicinity) and the lower end position (the vicinity thereof). The vertical movement range of the unit base 23 (measurement unit 20) by the vertical drive unit 33 is determined from the height position where the optical axis of the intraocular pressure measurement unit 22 coincides with the inspection optical axis Le, from the eye characteristic measurement unit 21. The optical axis is set to an interval up to a height position that coincides with the inspection optical axis Le. Although not shown, the vertical drive unit 33 can be formed using, for example, a DC motor as a drive source. The operation of the vertical drive unit 33 is controlled in an integrated manner by the control unit 19a (see FIG. 2) provided on the fixed base 11 as described above.

  Next, a switching operation for switching between an intraocular pressure measurement state and an eye characteristic measurement state in the ophthalmologic apparatus 10 will be described. In addition, in the case of switching from the intraocular pressure measurement state to the ocular characteristic measurement state and in the case of switching from the ocular characteristic measurement state to the intraocular pressure measurement state, the moving procedure and direction of each part are only reversed, Below, the case where it switches from an intraocular pressure measurement state to an eye characteristic measurement state is demonstrated, and the other is abbreviate | omitted.

  In the ophthalmologic apparatus 10, when an operation for switching from intraocular pressure measurement to ocular characteristic measurement is performed, a switching operation from the intraocular pressure measurement state to the ocular characteristic measurement state is started.

  First, in the intraocular pressure measurement state, as shown in FIG. 5A, the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp <b> 2, and the intraocular pressure measurement unit extends from the inspection opening 12 b of the housing 12 a of the apparatus body 12. No. 22 nozzle 22b protrudes, and the working distance Dt (see FIGS. 3C and 3D) is from the tip of the nozzle 22b to the eye E to be examined. In this intraocular pressure measurement state, the measurement unit 20 is the foremost side in the range of movement in the front-rear direction of the pair of support plate portions 32 by the drive base 31 of the switching drive mechanism 30 in the apparatus main body 12, and the switching drive mechanism. The position is the uppermost position in the range of movement in the vertical direction by 30 vertical drive units 33.

  In the apparatus main body 12, when the switching operation is started, the drive base 31 is driven, the pair of support plate portions 32 are moved toward the rear side in the front-rear direction (see arrow A1), and FIG. As shown in FIG. 2, the drive base 31 is positioned at the rearmost side in the range of movement in the front-rear direction. Accordingly, the measurement unit 20 supported by the pair of support plate portions 32 is also positioned at the rearmost side in the range of movement in the front-rear direction by the drive base 31. In this state, the tip of the nozzle 22 b of the intraocular pressure measurement unit 22 is positioned inside the inspection opening 12 b of the housing 12 a of the apparatus main body 12. As a result, the measurement unit 20 can move in the vertical direction within the apparatus main body 12.

  Next, in the apparatus main body 12, the vertical drive unit 33 is driven, and the unit base 23 (measurement unit 20) is moved downward in the vertical direction (see arrow A2). Here, in the measurement unit 20, the eye characteristic measurement unit 21 is held on the unit base 23 so as to be slidable in the front-rear direction, and the pair of guide protrusions 35 provided on the eye characteristic measurement unit 21 includes a pair of guide protrusions 35. A guide groove hole 34 provided in the support plate portion 32 is inserted. For this reason, in the measurement unit 20, when the unit base 23 is moved downward by the vertical drive unit 33, as shown in FIG. 5 (c), by the guide action of the pair of guide protrusions 35 by the guide groove holes 34, The eye characteristic measurement unit 21 is moved forward on the unit base 23. That is, the pair of guide groove holes 34 and the pair of guide protrusions 35 inserted therethrough are accompanied by the downward movement of the unit base 23 (measurement unit 20), and are forwarded to the eye characteristic measurement unit 21. A biasing force will be given.

  In the apparatus main body 12, as shown in FIG. 5D, when the unit base 23 (measurement unit 20) is positioned on the lowermost side in the vertical movement range by the vertical drive unit 33, the unit base The eye characteristic measuring unit 21 is positioned at the foremost side in the slide movable range of the eye characteristic measuring unit 21 by holding 23 (the range of guidance of the pair of guide protrusions 35 by the guide slot 34 when viewed in the front-rear direction). In this state, the eye characteristic measurement position where the optical axis of the eye characteristic measurement unit 21 coincides with the inspection optical axis Le and the tip of the housing 21a of the eye characteristic measurement unit 21 is fitted in the inspection opening 12b of the housing 12a. Sp1 (see FIG. 3). In this state, as described above, the distance from the tip of the housing 21a of the eye characteristic measurement unit 21 to the eye E is the working distance Dr (see FIG. 3), and this state is the eye characteristic measurement state. .

  Thereby, in the ophthalmologic apparatus 10, the switching operation from the intraocular pressure measurement state to the ocular characteristic measurement state, that is, the switching operation of the positions of the intraocular pressure measurement unit 22 and the ocular characteristic measurement unit 21 in the measurement unit 20 in the apparatus main body 12 is performed. Complete.

  In the switching operation from the ocular characteristic measurement state to the intraocular pressure measurement state, the nozzle 22b of the intraocular pressure measurement unit 22 approaches the eye E so that the working distance Dt is an extremely small value. Since 22b protrudes from the inspection opening 12b of the housing 12a of the apparatus main body 12, the switching operation can be executed only when the interval between the eye E and the apparatus main body 12 is larger than a predetermined value. It is desirable from the viewpoint of safety. As such a configuration, a detection means (not shown) for detecting whether or not the apparatus main body 12 is a position on the fixed base 11 where the distance between the eye E to be examined and the apparatus main body 12 is a predetermined value or more. It is conceivable to determine whether or not execution is possible based on a signal from the detection means. Here, the predetermined value in the interval between the eye E to be examined and the apparatus main body 12 is that in the state where the tip of the nozzle 22b of the tonometry part 22 protrudes most from the inspection opening 12b of the housing 12a of the apparatus main body 12. This is a value that can ensure an interval (an eye-safe distance) between the tip and the eye E that can reliably avoid the tip of the nozzle 22b from contacting the eye E.

  Next, the switching operation when the intraocular pressure measurement is continuously performed on the left and right eye E (L, R) of the subject in the ophthalmologic apparatus 10 of Example 1 will be described with reference to FIG. In the case of switching from the right eye E (R) to the left eye E (L) and the case of switching from the left eye E (L) to the right eye E (R), each part Since the procedure and the direction of the movement are merely reversed, a case where the right eye E (R) is switched to the left eye E (L) will be described below, and the other will be omitted. FIG. 6 illustrates a switching operation from the intraocular pressure measurement state corresponding to the right eye E (R) to the intraocular pressure measurement state corresponding to the left eye E (L) in the ophthalmologic apparatus 10. It is explanatory drawing, (a) shows the right-side intraocular pressure measurement state, (b) shows a mode that the intraocular pressure measurement part 22 retract | retreats, (c) is the apparatus main body 12 moving to the right side from (b). (D) shows a state of shifting from (c) to a left-side intraocular pressure measurement state in which the intraocular pressure measurement unit 22 is protruded.

  In the case of measuring the intraocular pressure of the right eye E (R), that is, in the intraocular pressure measurement state corresponding to the eye E (R), the apparatus body 12 moves in the left-right direction ( The fixed base is set so that the inspection optical axis Le substantially corresponds to the right eye E (R) of the subject held by the chin rest 15 and the forehead support 16 (see FIG. 1) as viewed from the arrow X). 11 is displaced to the left (the left-right direction is viewed from the examiner side, that is, as viewed from the front in FIG. 6). Further, in the intraocular pressure measurement state, the apparatus main body 12 has the chin rest 15 and the forehead pad 16 (see FIG. 1) when the intraocular pressure measurement unit 22 at the intraocular pressure measurement position Sp2 is viewed in the front-rear direction (see arrow Z). ) Is held at a position substantially equal to the working distance Dt (see FIG. 3). The position of the apparatus main body 12 is set as a right eye measurement position Spr. Here, “corresponding substantially and substantially equal” means that each subject has individual differences even in the state of being appropriately held by the chin rest 15 and the forehead pad 16 (see FIG. 1). This is because the position is not completely appropriate with respect to the eye E. Therefore, as described later, the intraocular pressure measurement is performed after the alignment with respect to the eye E (R) after the right eye measurement position Spr. The same applies to the left eye measurement position Spl described later.

  Next, when the intraocular pressure of the left eye E (L) is measured, it appropriately corresponds to the left eye E (L) of the subject held by the chin rest 15 and the forehead 16 (see FIG. 1). Thus, it is necessary to move the apparatus main body 12 to the right side on the fixed mount 11. However, in the state where the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2, the nozzle 22b of the intraocular pressure measurement unit 22 protruding from the inspection opening 12b of the housing 12a interferes (contacts) with the nose of the subject. Resulting in.

  In order to avoid this, when switching to the intraocular pressure measurement of the left eye E (L) in the apparatus body 12, first, in the apparatus body 12 at the right eye measurement position Spr, the intraocular pressure measurement position Sp2 The intraocular pressure measurement unit 22 thus moved is moved toward the rear side in the front-rear direction (see arrow Z) (see arrow A3). In Example 1, as shown in FIG. 6 (b), the control unit 19a performs eye adjustment until the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is flush with the housing 12a of the apparatus main body 12. The pressure measuring unit 22 is retracted. In the first embodiment, the intraocular pressure measurement unit 22 is moved by driving the drive base 31 (see FIG. 2 and the like) of the switching drive mechanism 30 so that the pair of support plate portions 32 are moved rearward in the front-rear direction. Is done.

  Thereafter, the control unit 19a uses the intraocular pressure measurement unit 22 based on whether the intraocular pressure measurement unit 22 has been retracted from the intraocular pressure measurement position Sp2 and the chin rest 15 and the forehead pad 16, that is, the fixed mount 11 (see FIG. 1). It is determined whether or not the vehicle has been retracted to the safe position. In the first embodiment, as described above, in the first embodiment, the control unit 19a moves the both support plate portions 32 of the drive base 31 beyond a predetermined fluctuation amount based on the detection signal from the position detection unit 31a. It can be detected based on the detection result. In the first embodiment, as described above, the position of the housing 12a of the apparatus main body 12 in the eye characteristic measurement state and the intraocular pressure measurement state is set using the chin rest 15 and the forehead support 16, that is, the fixed mount 11 (see FIG. 1). Since the reference safe position is set, the position where the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is flush with the housing 12a of the apparatus main body 12 is the safe position of the intraocular pressure measurement unit 22.

  Upon confirming that the intraocular pressure measurement unit 22 has been retracted from the intraocular pressure measurement position Sp2 and retracted to the safe position, the control unit 19a, as shown in FIG. 1), the apparatus main body 12 is moved to the right on the fixed base 11 so as to appropriately correspond to the left eye E (L) of the subject held in (see arrow A4). The position of the apparatus main body 12 is defined as a left eye measurement position Spl. The movement of the apparatus main body 12 is performed by driving the main body driving mechanism 18 under the control of the control unit 19a.

  Thereafter, as shown in FIG. 6D, in the apparatus main body 12 at the left eye measurement position Spl, the drive base 31 of the switching drive mechanism 30 is driven by the control of the control unit 19a, and the intraocular pressure measurement unit 22 is By moving toward the front side in the front-rear direction (see arrow Z), the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2 (see arrow A5), and the measurement unit 20 corresponds to the left eye E (L). It is assumed that the tonometry is in progress.

  Thereby, the switching operation from the intraocular pressure measurement state corresponding to the right eye E (R) to the intraocular pressure measurement state corresponding to the left eye E (L) is completed.

  Next, an example of how the ophthalmic apparatus 10 performs intraocular pressure measurement and eye characteristic measurement on a subject will be described with reference to the flowchart of FIG. FIG. 7 is a flowchart illustrating an example of an order and operations in which the intraocular pressure measurement and the eye characteristic measurement of the left and right eye E are continuously performed by the ophthalmologic apparatus 10 according to the first embodiment. In the example of FIG. 7, first, the eye characteristic of the right eye E (R) of the subject is measured, then the eye characteristic of the left eye E (L) is measured, and then the left eye E The intraocular pressure of (L) is measured, and then the intraocular pressure of the right eye E (R) is measured. For this reason, in the ophthalmologic apparatus 10, the eye characteristic measurement unit 21 is set to the eye characteristic measurement position Sp1 (see FIG. 3) in the apparatus main body 12 before the measurement is started (before the flowchart of FIG. 7 is started). It is supposed to be.

  First, the forehead is brought into contact with the forehead pad 16 while the subject's chin is placed on the chin rest 15 to hold the subject's face (step S1). In this state, the subject is in a state of facing the apparatus main body 12.

  In order to measure the eye characteristics of the right eye E (R) of the subject, the main body drive mechanism 18 moves the apparatus main body 12 over the fixed base 11 to the right eye measurement position Spr (FIG. a) and (b)) (step S2). In this state, in the apparatus main body 12, since the eye characteristic measurement unit 21 is set to the eye characteristic measurement position Sp1, the measurement unit 20 is in an intraocular pressure measurement state for the right eye E (R) (FIG. 3 ( a)).

  The main body drive mechanism 18 adjusts the position of the apparatus main body 12 to perform alignment with the eye E (R) on the right side of the eye characteristic measurement unit 21 under the control of the control unit 19a according to the operation on the various switches 17a (step) S3). Thereafter, the eye characteristic measurement unit 21 performs eye characteristic measurement. The operation from step S2 to the eye characteristic measurement may be performed in series under the control of the control unit 19a, and after the control unit 19a confirms that the input operation for execution by the examiner has been appropriately performed. It may be executed by the control unit 19a.

  When the eye characteristic measurement is completed, the main body drive mechanism 18 moves the apparatus main body 12 to the left eye measurement position Spl (see FIG. 5) under the control of the control unit 19a to measure the eye characteristic of the subject's left eye E (R). 6 (c) and (d)) (step S4). In this state, in the apparatus main body 12, since the eye characteristic measurement unit 21 remains at the eye characteristic measurement position Sp1, the measurement unit 20 is in an eye characteristic measurement state for the left eye E (L) (FIG. 3 (b)).

  The main body drive mechanism 18 adjusts the position of the apparatus main body 12 to perform alignment with the eye E (L) to be examined on the left side of the eye characteristic measurement unit 21 under the control of the control unit 19a according to the operation of the various switches 17a (step) S5). Thereafter, the eye characteristic measurement unit 21 performs eye characteristic measurement. The operations from step S4 to the eye characteristic measurement may be performed in series under the control of the control unit 19a, and after the control unit 19a confirms that an input operation for execution by the examiner has been appropriately performed. It may be executed by the control unit 19a.

  When the eye characteristic measurement is completed, the control base 19a controls the drive base 31 and the vertical drive section 33 of the switching drive mechanism 30 in the apparatus main body 12 so that they are in the order from (d) to (a) in FIG. Then, the switching operation from the eye characteristic measurement state to the intraocular pressure measurement state in the measurement unit 20 is performed (step S6). That is, switching from the state in which the eye characteristic measuring unit 21 is set to the eye characteristic measuring position Sp1 to the state in which the intraocular pressure measuring unit 22 is set to the intraocular pressure measuring position Sp2 is performed. At this time, as described above, the control unit 19a confirms that the interval between the eye E to be examined and the apparatus main body 12 is larger than a predetermined value, and then drives the drive base 31 and the vertical drive of the switching drive mechanism 30. It is desirable that the unit 33 be driven.

  Here, when the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2 in the apparatus main body 12 in the eye characteristic measurement state, the intraocular pressure measurement unit 22 is set to a position that is the working distance Dt with respect to the eye E. Then, the left eye measurement position Spl (see FIG. 6D) is set without moving the apparatus main body 12, and the measurement unit 20 is brought into an intraocular pressure measurement state for the left eye E (L) (FIG. 3C). )reference).

  The main body drive mechanism 18 adjusts the position of the apparatus main body 12 to perform alignment with the eye E (L) on the left side of the intraocular pressure measurement unit 22 by the control of the control unit 19a according to the operation on the various switches 17a (step) S7). Thereafter, the intraocular pressure measurement is performed by the intraocular pressure measurement unit 22. The operations from step S6 to the intraocular pressure measurement may be performed in series under the control of the control unit 19a, and after the control unit 19a confirms that an input operation for execution by the examiner has been appropriately performed. It may be executed by the control unit 19a.

  When the intraocular pressure measurement is completed, in order to switch from the left eye E (L) to the right eye E (R), the control unit 19a drives the drive base 31 of the switching drive mechanism 30 to measure the left eye. In the apparatus main body 12 at the position Spl, the intraocular pressure measurement unit 22 set to the intraocular pressure measurement position Sp2 is retracted to the safe position (step S8). That is, the intraocular pressure measurement unit 22 set to the intraocular pressure measurement position Sp2 is moved to the rear side, and the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is positioned inside the inspection opening 12b of the housing 12a of the apparatus main body 12. (See FIG. 6 (c)).

  Thereafter, the control unit 19a confirms that the intraocular pressure measurement unit 22 is retracted from the intraocular pressure measurement position Sp2 and the intraocular pressure measurement unit 22 is retracted to the safe position, and then the apparatus main body 12 is moved to the main body drive mechanism 18. The left eye is moved to the left on the fixed base 11 to obtain the right eye measurement position Spr (see FIG. 6B) (step S9). Here, when the intraocular pressure measurement unit 22 is not retracted to the safe position, the control unit 19a performs the operation of step S8 once again to retract the intraocular pressure measurement unit 22 to the safe position, and then executes step S9. If the intraocular pressure measurement unit 22 is not yet retracted to the safe position, in the first embodiment, the control unit 19a does not move the apparatus main body 12 to the left side but displays it on the display 17 (see FIG. 1). Display a message to alert the examiner.

  Thereafter, in the apparatus main body 12 set to the right eye measurement position Spr, the drive base 31 of the switching drive mechanism 30 is driven by the control of the control unit 19a, and the intraocular pressure measurement unit 22 is moved toward the front side in the front-rear direction. The intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2, and the measurement unit 20 is set to the intraocular pressure measurement state (see FIG. 3D) (step S10).

  The main body drive mechanism 18 adjusts the position of the apparatus main body 12 to perform alignment with the eye E (R) on the right side of the intraocular pressure measurement unit 22 by the control of the control unit 19a according to the operation on the various switches 17a (step) S11). Thereafter, the intraocular pressure measurement is performed by the intraocular pressure measurement unit 22. The operation from step S8 to the intraocular pressure measurement may be performed in a series under the control of the control unit 19a, and after the control unit 19a confirms that the input operation for execution by the examiner has been appropriately performed. It may be executed by the control unit 19a.

  Thereby, using the ophthalmologic apparatus 10, the eye characteristic measurement of the right eye E (R) of the subject to be performed continuously, the eye characteristic measurement of the left eye E (L), and the left eye E (L) The intraocular pressure measurement of L) and the intraocular pressure measurement of the right eye E (R) are finished.

  Next, problems in the conventional ophthalmic apparatus 1 will be described. FIG. 8 illustrates a switching operation from the intraocular pressure measurement state corresponding to the right eye E (R) to the intraocular pressure measurement state corresponding to the left eye E (L) of the ophthalmic apparatus 1 having the conventional configuration. FIG. 7 is an explanatory diagram similar to FIG. 6, in which (a) shows the right-side intraocular pressure measurement state, (b) shows how the apparatus main body 3 is retracted, and (c) shows the apparatus main body from (b). 3 shows a state of moving to the right side, and (d) shows a state of moving from (c) to the left-side intraocular pressure measurement state.

  Since this conventional ophthalmologic apparatus 1 has basically the same configuration as that of the ophthalmologic apparatus 10 according to the present invention, the same functional parts are denoted by the same reference numerals as those of the ophthalmologic apparatus 10, and detailed description thereof is omitted.

  In this ophthalmologic apparatus 1, in the measurement unit 2, the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 are movable to the respective measurement positions, as in the ophthalmologic apparatus 10 according to the present invention. A configuration in which the tonometry part 22 is moved backward for switching operation from the tonometry state corresponding to the right eye E (R) to the tonometry state corresponding to the left eye E (L); Has not been.

  For this reason, in the ophthalmologic apparatus 1, the intraocular pressure measurement state (see FIG. 8A) corresponding to the left eye E (L) from the intraocular pressure measurement state (see FIG. 8A) corresponding to the right eye E (R). 8 (d)), the apparatus main body 3 is first moved backward on the fixed base 11 as shown in FIG. 8 (b). Thereafter, as shown in FIG. 8C, it is necessary to move the apparatus main body 3 to the right side in the fixed base 11 and then advance the apparatus main body 3 in the fixed base 11 as shown in FIG. 8D. is there. Thus, in the ophthalmologic apparatus 1, the intraocular pressure measurement state corresponding to the left eye E (L) is changed from the intraocular pressure measurement state corresponding to the right eye E (R) (see FIG. 8A). When switching to FIG. 8 (d)), it is necessary to move the apparatus main body 3 greatly, so that the inspection time is long.

  In the ophthalmologic apparatus 1, since the apparatus main body 3 is accommodated in a state where the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 are movable, the load for moving the apparatus main body 3 is also large. In addition, the load for stopping the movement is also large, and it is difficult to perform the switching operation. This has a greater effect as the amount of movement of the apparatus body 3 increases.

  Further, in order to suppress an increase in examination time, it is conceivable to increase the moving speed of the apparatus main body 3. However, the large and heavy apparatus main body 3 that accommodates the eye characteristic measuring unit 21 and the intraocular pressure measuring unit 22 is moved at high speed. It is not easy to stop the movement.

  Next, when the apparatus main body 3 is moved by the main body driving mechanism 18 provided on the fixed base 11 as in the ophthalmic apparatus 10 according to the present invention, the movement to the main body driving mechanism 18 is increased as the movement amount of the apparatus main body 3 increases. The load increases, and the above-described problems have a greater influence.

The ophthalmologic apparatus 10 according to the present invention is configured in view of the above-described problems. As described with reference to FIG. 6, the ophthalmologic apparatus 10 is for the left and right eye E (L, R) of the subject. Compared with the conventional ophthalmologic apparatus 1, the movement amount of the apparatus main body 12 in the switching operation when continuously measuring intraocular pressure can be greatly reduced. With this ophthalmologic apparatus 10, the following effects (1) to (7) can be obtained.
(1) When the intraocular pressure measurement of the left and right eye E (R, L) is continuously performed, the eye E corresponds to the other eye E from the position corresponding to the eye E where the intraocular pressure measurement has been performed first. Prior to moving the apparatus main body 12 left and right on the fixed base 11 to the position, the nozzle 22b protrudes from the inspection opening 12b of the housing 12a in the apparatus main body 12 to measure one eye E to be examined. Since the intraocular pressure measurement unit 22 is retracted, the nozzle 22b (particularly the tip thereof) of the intraocular pressure measurement unit 22 interferes with the subject (particularly the nose) while suppressing the movement amount of the apparatus main body 12 on the fixed mount 11. (Contact) can be prevented.
(2) When the intraocular pressure measurement of the left and right eye E (R, L) is continuously performed, the control unit 19a uses the chin rest 15 and the forehead pad 16, that is, the fixed mount 11 as a reference, so that the intraocular pressure measurement unit 22 After confirming that the device has been retracted to the safe position, the device body 12 is moved in the left-right direction, so that the nozzle 22b (especially the tip) of the intraocular pressure measurement unit 22 interferes with the subject (particularly the nose). (Contact) can be reliably prevented.
(3) When the intraocular pressure measurement of the left and right eye E (R, L) is continuously performed, the intraocular pressure measurement unit in the apparatus main body 12 is moved before the left and right movements on the fixed mount 11 of the apparatus main body 12. 22 is retracted to a safe position (in the first embodiment, the tip of the nozzle 22b is retracted to the inside of the inspection opening 12b of the housing 12a), so that the apparatus main body 12 is not moved in the front-rear direction on the fixed base 11. It can be moved in the left-right direction.
(4) The tip position of the housing 21a of the eye characteristic measuring unit 21 set to the eye characteristic measuring position Sp1 and the tip position of the housing 22a of the tonometry unit 22 set to the intraocular pressure measuring position Sp2 (that is, the nozzle 22b) The difference (the amount of protrusion of the nozzle 22b from the inspection opening 12b of the housing 12a) seen in the front-rear direction (see the arrow Z) with respect to the tip position) is the difference between the working distance Dr and the working distance Dt. Therefore, if the alignment is excluded, there is no need to move the apparatus main body 12 in the front-rear direction at the time of measuring the intraocular pressure and at the time of measuring the eye characteristics, so that the amount of movement of the apparatus main body 12 during the measurement can be reduced. For this reason, the time required for the inspection can be shortened, and the power consumption accompanying the movement of the apparatus main body 12 can be reduced.
(5) Since the apparatus main body 12 is not moved in the front-rear direction when measuring the intraocular pressure and measuring the eye characteristics except for the alignment, it is unnecessary for the subject whose face is held by the chin rest 15 and the forehead pad 16. It can prevent giving anxiety. This is because when the apparatus main body is moved in the front-rear direction, the apparatus main body approaches the subject and gives a feeling of pressure to the subject.
(6) In the switching operation between the intraocular pressure measurement state and the eye characteristic measurement state, the eye characteristic measurement is performed by moving the measurement unit 20 in the apparatus body 12 and moving the eye characteristic measurement unit 21 in the measurement unit 20. Since the unit 21 is set to the eye characteristic measurement position Sp1 and the intraocular pressure measurement unit 22 is set to the intraocular pressure measurement position Sp2, the switching operation between the intraocular pressure measurement state and the eye characteristic measurement state can be made more efficient. . This is due to the following.

  The intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 need to coincide with the inspection optical axis Le for measurement. Since the inspection optical axis Le is set corresponding to the chin rest 15 and the forehead support 16 on which the face of the subject is held, in the ophthalmologic apparatus 10 (apparatus body 12), the intraocular pressure measuring unit 22 and In order to perform measurement by the eye characteristic measurement unit 21, it is necessary to exchange the positions of each other. Thus, since it is necessary to move both about the operation | movement which replaces the intraocular pressure measurement part 22 and the ocular characteristic measurement part 21, the measurement unit 20 which accommodated the intraocular pressure measurement part 22 and the ocular characteristic measurement part 21 is used. It is done in a batch by moving.

  The intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 measure at an appropriate working distance set for each. Here, the ophthalmologic apparatus 10 has a configuration in which the nozzle 22b protrudes from the inspection opening 12b of the housing 12a of the apparatus main body 12 in the intraocular pressure measurement unit 22 that needs to be close to the subject's eye. When the intraocular pressure measurement unit 22 and the ocular characteristic measurement unit 21 are exchanged, the nozzle 22b of the intraocular pressure measurement unit 22 is retracted from the inspection opening 12b (the order is reversed in the case of insertion, but basically the same). ) For this reason, by moving the measurement unit 20 backward, the nozzle 22b of the intraocular pressure measurement unit 22 is retracted from the examination opening 12b, and then the measurement unit 20 is moved downward to move the measurement unit 20 and the eye. Although the characteristic measuring unit 21 is replaced, it is not possible to set the working distance as the working distance even if the optical axis of the eye characteristic measuring unit 21 can coincide with the inspection optical axis Le. For this reason, it is necessary to move the eye characteristic measurement unit 21 forward, and the eye characteristic measurement unit 21 is moved forward by moving the eye characteristic measurement unit 21 located on the inspection optical axis Le in the measurement unit 20. It moves to the working distance position, that is, it is in an eye characteristic measurement state. At this time, it is conceivable to move the measurement unit 20 forward. However, since the eye characteristic measurement unit 21 is moved to set the working distance Dr (see FIG. 3), only the eye characteristic measurement unit 21 is moved forward. Therefore, moving the measurement unit 20 forward causes a reduction in efficiency. Further, when the measurement unit 20 is moved forward, the working distance Dt (see FIG. 3) of the intraocular pressure measurement unit 22 (nozzle 22b) is set to be shorter than the working distance Dr of the eye characteristic measurement unit 21. If no measures are taken, the intraocular pressure measurement unit 22 (nozzle 22b) comes into contact with the housing 12a of the apparatus main body 12.

  As described above, while the intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 are configured separately, both can be moved within the apparatus main body 12 as a single measurement unit 20 and the eye characteristic measurement can be performed within the measurement unit 20. Since only the part 21 can be moved and the moving method is appropriately used depending on the scene to be moved in a single operation and the scene to be moved alone, the amount of members to be moved can be minimized, so that the intraocular pressure measurement The switching operation between the state and the eye characteristic measurement state can be made more efficient.

  (7) In the measurement unit 20, the eye characteristic measuring unit 21 is held on the unit base 23 so as to be slidable in the front-rear direction, and the guide protrusion 35 is provided in the eye characteristic measuring unit 21 and guide grooves for guiding the same Since the holes 34 are provided in the pair of support plate portions 32, the operation of switching the intraocular pressure measurement unit 22 and the eye characteristic measurement unit 21 to a position suitable for the inspection optical axis Le (inspection opening 12b) is provided. The operation of setting the eye characteristic measurement unit 21 to the eye characteristic measurement position Sp1 can be performed simultaneously. For this reason, since the operation time required for switching between the intraocular pressure measurement state and the eye characteristic measurement state can be shortened, rapid measurement is possible and the burden on the subject and the examiner can be reduced.

  Therefore, the ophthalmic apparatus 10 according to the present invention is a composite ophthalmic apparatus in which the intraocular pressure measurement unit 22 and the other eye characteristic measurement unit 21 are accommodated in the housing 12a of the apparatus main body 12. Can be reduced as much as possible.

  Next, the ophthalmologic apparatus 102 of Example 2 is demonstrated using FIG. FIG. 9 shows the first embodiment of the ophthalmic apparatus 102 in the switching operation from the intraocular pressure measurement state corresponding to the right eye E (R) to the intraocular pressure measurement state corresponding to the left eye E (L). It is explanatory drawing for demonstrating a different part from the ophthalmologic apparatus 10, (a) shows an intraocular pressure measurement state, (b) shows a mode that the intraocular pressure measurement part 22 was retracted, (c) is ( FIG. 4B shows a state in which the apparatus main body 12 has been retracted from b), and FIG. 6D shows a state in which the intraocular pressure measurement unit 22 in the ophthalmic apparatus 10 of Example 1 has been retracted for comparison.

  The ophthalmologic apparatus 102 according to the second embodiment is different from the ophthalmologic apparatus 10 according to the first embodiment in the aspect of the switching operation when the intraocular pressure measurement is continuously performed on the left and right eye E (L, R) of the subject. Are different examples. Since the configuration of the ophthalmic apparatus 102 is the same as that of the ophthalmic apparatus 10, the same functional parts are denoted by the same reference numerals as those of the ophthalmic apparatus 10, and detailed description thereof is omitted.

  In the ophthalmologic apparatus 102, the main body drive mechanism 18 is provided with position detection means 18 a (see FIG. 2) that detects the position (movement amount) of the apparatus main body 12 on the fixed base 11. For example, although not shown, the position detection unit 18a can be configured using a photo sensor or the like. The position detection means 18a outputs a detection signal indicating the position of the apparatus main body 12 on the fixed mount 11 to the control unit 19a (see FIG. 2). For this reason, the control unit 19a can detect the amount of movement of the apparatus main body 12 on the fixed base 11 by driving the main body driving mechanism 18.

  The ophthalmologic apparatus 102 according to the second embodiment basically corresponds to the left eye E (L) from the intraocular pressure measurement state corresponding to the right eye E (R), similar to the ophthalmologic apparatus 10 according to the first embodiment. The operation for switching to the intraocular pressure measurement state is performed, but the aspect in which the intraocular pressure measurement unit 22 performed first is retracted to the safe position is different from the ophthalmologic apparatus 10 of the first embodiment.

  Specifically, in the ophthalmic apparatus 10 according to the first embodiment, as shown in FIG. 9D, as the first operation, in the apparatus main body 12, the tip of the nozzle 22 b of the intraocular pressure measurement unit 22 is the housing of the apparatus main body 12. By retracting the intraocular pressure measurement unit 22 to a position that is flush with 12a, the intraocular pressure measurement unit 22 is retracted to the safe position. Here, in the ophthalmologic apparatus 10 (that is, the ophthalmologic apparatus 102), as described above, the position of the casing 12a of the apparatus main body 12 in the intraocular pressure measurement state is set to the chin rest 15 and the forehead support 16, that is, the fixed mount 11 (see FIG. 1). ) Is the safe position, and the amount of protrusion of the nozzle 22b of the intraocular pressure measurement unit 22 from the inspection opening 12b of the housing 12a (24 mm in the above example) makes the intraocular pressure measurement unit 22 a safe position. This is the amount of movement D1.

  On the other hand, in the ophthalmologic apparatus 102, in order to retract the tip of the nozzle 22b of the intraocular pressure measurement unit 22 to the safe position, the control unit 19a is configured to drive the switching drive mechanism 30 as shown in FIG. By driving the base 31, the intraocular pressure measurement unit 22 is retracted in the apparatus main body 12, and the main body driving mechanism 18 is driven as shown in FIG. Retreat on top. That is, in the ophthalmologic apparatus 102, the intraocular pressure measurement unit 22 is retracted from the intraocular pressure measurement state to the movement amount D2 from the intraocular pressure measurement state in order to retract the movement amount D1 of the intraocular pressure measurement unit 22 (FIG. 9B). In addition, by retracting the apparatus main body 12 to the movement amount D3 on the fixed base 11 (see FIG. 9C), the intraocular pressure measurement unit 22 is retracted to the movement amount D1 to be a safe position.

  The controller 19a simultaneously performs the operation of retracting the intraocular pressure measurement unit 22 to the movement amount D2 in the apparatus main body 12 and the operation of retracting the apparatus main body 12 to the movement amount D3 on the fixed base 11. At this time, the control unit 19a determines whether or not the movement amount of the intraocular pressure measurement unit 22 has reached the movement amount D2 based on the detection signal from the position detection unit 31a, and uses the detection signal from the position detection unit 18a. Based on this, it is determined whether or not the movement amount of the apparatus main body 12 has reached the movement amount D3. The movement amount D2 and the movement amount D3 are stored as data in the storage unit 19b, and the control unit 19a determines the movement amount by appropriately reading the data from the storage unit 19b. Note that the values of the movement amount D2 and the movement amount D3 stored in the storage unit 19b may be appropriately changed.

The ophthalmic apparatus 102 can basically obtain the same effects as the ophthalmic apparatus 10. In addition, the ophthalmologic apparatus 102 can obtain the following effect (8).
(8) Since the intraocular pressure measurement unit 22 in the apparatus main body 12 is retracted to the movement amount D2 and the apparatus main body 12 is retracted to the movement amount D3 on the fixed mount 11, the tonometry unit 22 is set to the safe position. The time required to set the intraocular pressure measurement unit 22 to the safe position can be shortened, and the examination time can be further shortened. Therefore, it is desirable to set the ratio of the movement amount D2 and the movement amount D3 so that the time required for each is equal. Here, even in the configuration of the ophthalmologic apparatus 102, the amount of movement of the apparatus main body 12 on the fixed base 11 is basically the same as the intraocular pressure measurement unit 22 is retracted in the apparatus main body 12. Since it is extremely small, the problems of the conventional ophthalmic apparatus 1 can be solved.

  In each of the above-described embodiments, in the measurement unit 20, the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 are provided on the unit base 23, and the unit base 23 is held by the switching drive mechanism 30. However, it is possible to switch the eye characteristic measuring unit 21 to the eye characteristic measuring position Sp1 and the intraocular pressure measuring unit 22 to the intraocular pressure measuring position Sp2, that is, the apparatus main body 12 has a single examination optical axis. In the housing 12a in which Le is set, the eye characteristic measuring unit 21 and the intraocular pressure measuring unit 22 are configured to be switchably held at positions corresponding to the inspection optical axis Le, and the nozzle 22b is used to inspect the housing 12a. Any device can be used as long as it can retract the intraocular pressure measurement unit 22 at the intraocular pressure measurement position Sp2 protruding from the opening 12b in the apparatus main body 12, and is not limited to the above-described configuration.

  In each of the above-described embodiments, the position of the housing 12a of the apparatus main body 12 in the eye characteristic measurement state and the intraocular pressure measurement state is based on the chin rest 15 and the forehead support 16, that is, the fixed mount 11 (see FIG. 1). Since it is in the safe position, the device main body 12 in the eye characteristic measurement state is moved right and left on the fixed base 11 as it is (see step S4), or the tonometry part 22 is moved backward in the device main body 12 in the eye pressure measurement state. However, the apparatus main body 12 in a state where the tip of the nozzle 22b of the intraocular pressure measurement unit 22 is in a safe position is moved on the fixed mount 11. As long as it moves to the left and right, it is not limited to the above-described embodiments. For example, as described above, the safe distance for setting the safe position is the subject (with the tip of the nozzle 22b of the intraocular pressure measurement unit 22 held by the chin rest 15 and the forehead pad 16 (see FIG. 1)). Since it is an interval that can surely avoid contact with the nose), the most protruding part (especially the nose) is located in the subject held by the chin rest 15 and the forehead rest 16. Is set based on the assumed distance, but since the assumed position of the most protruding portion (particularly the nose) varies depending on the subject to be examined, the apparatus main body 12 in the eye characteristic measurement state The position of the housing 12a is not necessarily the safe position. Accordingly, when the subject side is set to a safe position with respect to the position of the housing 12a of the apparatus main body 12 in the eye characteristic measurement state, the amount of movement of the intraocular pressure measurement unit 22 in the apparatus main body 12 to the rear is accordingly changed. It may be reduced. Further, in the case where the examiner side is set to a safe position with respect to the position of the housing 12a of the apparatus main body 12 in the eye characteristic measurement state, in addition to retracting the tonometry part 22 in the apparatus main body 12, the intraocular pressure measurement part 22 The apparatus main body 12 may be retracted on the fixed base 11 until the tip of the nozzle 22b reaches the safe position. Even in this case, since the intraocular pressure measurement unit 22 is first retracted in the apparatus main body 12 in order to switch the left and right positions, the movement amount of the apparatus main body 12 itself to the rear should be extremely small. Can do.

  Further, in each of the above-described embodiments, in the measurement unit 20, the eye characteristic measurement unit 21 and the intraocular pressure measurement unit 22 are provided on the unit base 23, and the unit base 23 is held by the switching drive mechanism 30. However, the intraocular pressure measurement unit 22 can be held at the intraocular pressure measurement position Sp2 (position corresponding to the inspection optical axis Le), and the intraocular pressure measurement in which the nozzle 22b protrudes from the inspection opening 12b of the housing 12a. Any device can be used as long as it can retract the intraocular pressure measurement unit 22 at the position Sp <b> 2 in the apparatus main body 12, and is not limited to the above-described configuration.

It is a typical perspective view which shows an example of the external appearance structure of the ophthalmologic apparatus which concerns on this invention. It is explanatory drawing which shows schematically the internal structure of an ophthalmologic apparatus. It is explanatory drawing for demonstrating the positional relationship of the working distance and apparatus main body in intraocular pressure measurement and eye characteristic measurement, (a) is a mode that the eye characteristic measurement part was made into working distance with respect to the right eye to be examined. (B) shows a state in which the eye characteristic measuring unit is set as the working distance with respect to the left eye to be examined, and (c) shows a state in which the intraocular pressure measuring unit is set as the working distance with respect to the left eye to be examined. (D) shows a state in which the intraocular pressure measurement unit is set to the working distance with respect to the right eye to be examined. It is explanatory drawing for demonstrating the relationship between the guide slot of both the support plate parts of a switching drive mechanism, and the guide protrusion of the eye characteristic measurement part of a measurement unit. It is explanatory drawing for demonstrating switching operation in an ophthalmologic apparatus (measurement unit), (a) shows an intraocular pressure measurement state, (b) retracts an intraocular pressure measurement part (measurement unit) from the intraocular pressure measurement state. (C) shows the transition state from the state of (b) to the eye characteristic measurement state, and (d) shows the eye characteristic measurement state. FIG. 6 is an explanatory diagram for explaining a switching operation from an intraocular pressure measurement state corresponding to the right eye to be examined to an intraocular pressure measurement state corresponding to the left eye in the ophthalmologic apparatus, and FIG. The measurement state is shown, (b) shows a state in which the intraocular pressure measurement unit moves backward, (c) shows a state in which the apparatus main body moves to the right side from (b), and (d) shows an intraocular pressure measurement from (c). It shows a state of shifting to the left-side intraocular pressure measurement state in which the portion is protruded. 6 is a flowchart illustrating an example of an order and operations in which the intraocular pressure measurement and the eye characteristic measurement of the left and right eye E are continuously performed by the ophthalmologic apparatus according to the first embodiment. FIG. 7 is an explanatory view similar to FIG. 6 for explaining a switching operation from an intraocular pressure measurement state corresponding to the right eye to be examined to an intraocular pressure measurement state corresponding to the left eye to be examined in the ophthalmic apparatus having a conventional configuration; (A) shows the right-side intraocular pressure measurement state, (b) shows how the apparatus body moves backward, (c) shows how the apparatus body moves to the right side from (b), and (d) shows ( The state of moving from c) to the left-side intraocular pressure measurement state is shown. In the ophthalmologic apparatus according to the second embodiment, the difference from the ophthalmic apparatus according to the first embodiment in the switching operation from the intraocular pressure measurement state corresponding to the right eye to be examined to the intraocular pressure measurement state corresponding to the left eye to be examined will be described. (A) shows an intraocular pressure measurement state, (b) shows a state where the intraocular pressure measurement unit is retracted, and (c) shows a state where the apparatus main body is retracted from (b). (D) has shown the mode that the intraocular pressure measurement part in the ophthalmic apparatus 10 of Example 1 was retracted for comparison.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 102 Ophthalmology apparatus 11 Fixed base 12 Apparatus main body 12a Case 18 Main body drive mechanism 18a Position detection means (as detection means) 19a Control section 21 Eye characteristic measurement section 22 Intraocular pressure measurement section 31a (Detection means) position detection Means C Cornea E Eye to be examined Le Examination optical axis Sp2 Intraocular pressure measurement position

Claims (5)

An intraocular pressure measurement unit that measures intraocular pressure by spraying a fluid on the cornea of a subject's eye and deforming the cornea is held at a position corresponding to the inspection optical axis in a housing in which the inspection optical axis is set. The possible apparatus main body is an ophthalmic apparatus supported by a main body drive mechanism on a fixed mount so as to be movable,
In the apparatus main body, the intraocular pressure measurement unit is movable to an intraocular pressure measurement position partially protruding from the housing in a state corresponding to the inspection optical axis, and from the intraocular pressure measurement position, the It is possible to retract toward the inside of the housing,
In the apparatus main body, in relation to the fixed gantry, it is possible to detect whether or not the tonometry part is retracted from the tonometry position and to a predetermined safe position for the subject. Means are provided,
When the intraocular pressure measurement is performed by the intraocular pressure measurement unit, the main body drive mechanism indicates that the intraocular pressure measurement unit is retracted from the intraocular pressure measurement position and retracted to the safe position. When the detection signal is received from the detection means, the apparatus main body can be moved from a position corresponding to one eye of the subject to a position corresponding to the other eye to be examined on the fixed base. An ophthalmic apparatus characterized by:   2. The intraocular pressure measurement unit is retracted to the safe position by movement of the intraocular pressure measurement unit from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing. The ophthalmic device described.   The intraocular pressure measurement unit moves the intraocular pressure measurement unit from the intraocular pressure measurement position in the apparatus main body toward the inside of the housing, and moves the apparatus main body in the backward direction on the fixed mount. The ophthalmic apparatus according to claim 1, wherein the ophthalmic apparatus is retracted to the safe position. An intraocular pressure measurement unit that measures intraocular pressure by spraying a fluid on the cornea of a subject's eye and deforming the cornea is held at a position corresponding to the inspection optical axis in a housing in which the inspection optical axis is set. An ophthalmologic apparatus in which a movable apparatus body is supported by a main body drive mechanism on a fixed base so as to be movable, and movement of the apparatus main body by the main body drive mechanism and switching operation in the apparatus main body are controlled by a control unit. There,
In the apparatus main body, the intraocular pressure measurement unit is movable to an intraocular pressure measurement position partially protruding from the housing in a state corresponding to the inspection optical axis, and from the intraocular pressure measurement position, the It is possible to retract toward the inside of the housing,
In the apparatus main body, in relation to the fixed gantry, it is possible to detect whether or not the tonometry part is retracted from the tonometry position and to a predetermined safe position for the subject. Means are provided,
The control unit, when switching from the state of measuring the intraocular pressure of one of the subject's eyes to the state of measuring the intraocular pressure of the other of the subject's eyes,
Retreating the tonometry part from the tonometry position toward the inside of the housing in the apparatus body;
After receiving a detection signal indicating that the tonometry part is retracted from the tonometry position and also to the safe position from the detection means, the main body drive mechanism receives the detection signal on the fixed base. Moving the apparatus main body from a position corresponding to one eye of the examiner to a position corresponding to the other eye to be examined;
And a step of causing the intraocular pressure measurement unit retracted inward of the housing to advance to the intraocular pressure measurement position in the apparatus main body.   The apparatus main body has an optical system that receives reflected light from the eye to be examined and inspects eye characteristics, and is configured independently of the tonometry part; and the tonometry part; The ophthalmic apparatus according to any one of claims 1 to 4, wherein the device is switchably held in a position corresponding to the inspection optical axis in the housing.

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