JP4964662B2 - Ophthalmic equipment - Google Patents

Description

  The present invention relates to an ophthalmologic apparatus for measuring a plurality of eye characteristics.

  An intraocular pressure measurement unit that measures the intraocular pressure of the eye to be examined and an ocular refractive power measurement unit that measures the eye refractive power of the eye to be examined are arranged in a stacked manner, and includes a measurement unit that includes different measurement optical axes in the height direction There is disclosed a composite ophthalmologic apparatus that performs measurement by moving one measurement optical axis to an eye to be examined by moving the measurement unit in the vertical direction by driving the vertical drive unit (see Patent Document 1). The apparatus of Patent Document 1 is equipped with an anterior ocular segment observation display monitor used for alignment between the eye to be examined and the apparatus.

In addition, with the recent thinning of the display monitor, there is known a display unit for observing the anterior segment that allows the orientation of the display surface to be changed on the examiner side casing of the measurement unit (Patent Document). 2). In this case, the examiner can observe the display monitor with an easy posture without bending the neck.
Japanese Patent Laid-Open No. 1-265937 JP 2006-55439 A

  By the way, when a display monitor is attached to the examiner-side casing of a measurement unit in which a plurality of measurement units are stacked one above the other, for measurement mode switching (for example, from the eye refractive power measurement mode to the intraocular pressure measurement mode). When the measurement unit is driven up and down during the transition, the position of the display monitor changes accordingly. For this reason, there is a problem that it is difficult for the examiner to observe the subject's eye while looking at the monitor after shifting to the measurement mode.

  In view of the above problems, the present invention provides a composite ophthalmologic apparatus having a measurement unit having a plurality of measurement functions. Even if the measurement unit moves up and down to switch the measurement mode, the display position of the display monitor is changed. It is an object of the present invention to provide an ophthalmologic apparatus capable of suppressing fluctuations and suitably observing the anterior ocular segment to be examined.

  In order to solve the above problems, the present invention is characterized by having the following configuration.

(1) a first measurement unit having a measurement optical system for measuring the first eye characteristic of the subject eye, and a second measurement unit having a measurement optical system for measuring the second eye characteristic of the subject eye; A measurement unit in which the first and second measurement units are arranged such that the measurement optical axis of the first measurement unit and the measurement optical axis of the second measurement unit with respect to the eye to be examined have different heights;
Vertical drive means for moving the measurement unit up and down to position the measurement optical axes of the first and second measurement units with respect to the eye and measure the eye;
An anterior segment imaging means for imaging the anterior segment of the eye to be examined provided in the measurement unit;
A display monitor that is attached to the examiner of the measurement unit and displays an anterior ocular segment image taken by the anterior ocular segment imaging means;
In order to make the display position of the display monitor in the second measurement mode using the second measurement unit substantially the same position as the display position of the display monitor in the first measurement mode using the first measurement unit, Monitor position correcting means for correcting the position of the display monitor by moving the display monitor in response to the vertical drive of the measurement unit when the measurement mode is switched by the vertical drive means.
(2) In the ophthalmic apparatus according to (1),
The monitor position correcting means includes a drive unit for electrically moving the display monitor with respect to the measurement unit;
Monitor position detecting means for detecting the position of the display monitor relative to the measurement unit;
Control means for drivingly controlling the drive unit so that the display monitor is moved to a predetermined position based on a detection signal from the monitor position detecting means.
(3) In the ophthalmologic apparatus according to (2), a monitor position adjustment switch operated by an examiner to adjust the position of the display monitor with respect to the measurement unit, and an operation signal from the monitor position adjustment switch Storage means for storing the position information of the display monitor moved based on the detection signal from the monitor position detection means, and the control means stores the position of the display monitor stored by the storage means. The drive unit is driven and controlled based on information.
(4) In the ophthalmologic apparatus according to (1), the monitor position correcting unit includes an adjustment mechanism that moves the display monitor and adjusts an angle or a height of the display monitor with respect to the measurement unit.

  According to the present invention, in a composite type ophthalmologic apparatus having a measurement unit having a plurality of measurement functions, even if the measurement unit moves up and down for switching the measurement mode, fluctuations in the display position of the display monitor are suppressed. The observation of the anterior segment of the eye to be examined can be suitably performed.

  An embodiment of the present invention will be described with reference to the drawings. In this embodiment, an ophthalmologic apparatus that measures intraocular pressure, eye refractive power, and corneal shape will be described as an example. FIG. 1 is an external configuration diagram of an ophthalmologic apparatus according to the present embodiment. FIG. 1A shows a state at the time of measuring eye refractive power and corneal shape, and FIG. 1B shows a state at the time of measuring intraocular pressure.

  The ophthalmologic apparatus includes a base 1, a face support unit 2 attached to the base 1, a movable table 3 that is movably provided on the base 1, and a measurement unit that is movably provided on the movable table 3. 4 is provided. The measurement unit 4 is an eye refractive power / corneal shape measurement unit 4a (hereinafter referred to as a ref-kerato measurement unit) for measuring the eye refractive power and the corneal shape of the eye E (first eye characteristic). And an intraocular pressure measuring unit 4b for measuring the intraocular pressure (second ocular characteristic) of the eye E to be examined in a non-contact manner so as to be positioned on the reflex / kerato measuring unit 4a. At this time, the measurement unit 4 includes the reflex / kerato measurement unit 4a and the eye so that the measurement optical axis La of the reflex / kerato measurement unit 4a for the eye to be examined and the measurement optical axis Lb of the intraocular pressure measurement unit 4b have different heights. The pressure measurement unit 4b is arranged, and the first and second eye characteristics can be measured by measuring the eye to be examined by aligning the measurement optical axis La and the measurement optical axis Lb with respect to the eye to be examined. is there.

  The measurement unit 4 is moved in the vertical direction (Y direction shown in FIG. 1) with respect to the eye to be examined by a Y drive unit 6 (vertical movement unit) provided on the movable table 3. The Y drive unit 6 moves the measurement unit 4 in the vertical direction with respect to the eye to be examined so that the measurement optical axes of the reflex / kerato measurement unit 4a and the intraocular pressure measurement unit 4b are substantially the same height as the eye to be examined. Used for.

  The measurement unit 4 is moved in the left-right direction (X direction) and the front-rear (working distance) direction (Z direction) with respect to the eye E by an XZ drive unit 7 provided on the Y drive unit 6. . Thereby, the measurement unit 4 becomes movable in a three-dimensional direction.

  The intraocular pressure measurement unit 4b is arranged so as to be movable in the Z direction with respect to the reflex / kerat measurement unit 4a by driving the drive unit 8. In the intraocular pressure measurement mode, the intraocular pressure measurement unit 4b is covered. It is used to move in the direction approaching the eye E, and to move the tonometry part 4b away from the eye E in the reflex / kerato measurement mode.

  The movable table 3 is moved in the X direction and the Z direction on the base 1 by operating the joystick 5. Further, when the examiner rotates the rotary knob 5 a, the measurement unit 4 is moved in the Y direction by the Y drive of the Y drive unit 6. On the top of the joystick 5, a measurement start switch 5b is provided.

  Reference numeral 40 denotes a display monitor that displays an observation image of the eye to be examined, measurement results, and the like. Reference numeral 100 denotes a display monitor moving mechanism for adjusting the position (height) of the display monitor 40 in the vertical direction with respect to the measurement unit 4. Here, the display monitor 40 is attached to the examiner side surface of the housing of the measurement unit 4 via the monitor moving mechanism 100, and the elevation angle can be changed by a rotation shaft not shown. Yes.

  More specifically, the moving mechanism 100 includes a vertical driving motor 101 fixed to the measurement unit 4, a screw shaft 102 coupled to the rotation shaft of the motor 101 and extending in the vertical direction, and a tip of the screw shaft 102. A fixing unit 103 is provided which is connected to the unit and fixed to the measurement unit 4. In addition, the display monitor 40 includes a display unit 41 (for example, a liquid crystal display) having a display screen, and a connecting unit 42 that is formed with a female screw unit that is screwed with the male screw unit of the screw shaft 102 and is connected to the display unit 41. Is provided. Here, when the motor 101 is driven to rotate, the screw shaft 102 is rotated, and the display monitor 40 including the display unit 41 is moved up and down with respect to the measurement unit 4 via the connecting unit 42. In this case, the motor 101 is used as a drive unit for electrically moving the display monitor 40 relative to the measurement unit 4.

  The moving mechanism 100 is provided with a vertical position detecting unit 104 (see FIG. 2) for detecting the vertical position of the display monitor 40 with respect to the measurement unit 4. As the vertical position detection unit 104, for example, photosensors 105 and 106 that detect whether the vertical position of the monitor 40 is at a predetermined position (for example, an initial position or a lower limit position at the start of measurement) are provided near the screw shaft 102. At the same time, a light shielding plate 107 is provided in a part of the connecting portion 42. In this case, the arrangement position of the photosensor 105 corresponds to the vertical position of the monitor 40 in the reflex / kerato measurement mode, and the arrangement position of the photosensor 106 corresponds to the vertical position of the monitor 40 in the intraocular pressure measurement mode. The vertical position of the monitor 40 in each measurement mode can be adjusted based on the detection signal when the photosensor detects the light shielding plate 107.

Note that the present invention is not limited to the above-described configuration, and a standard for obtaining the vertical position of the display monitor 40 using a motor with an encoder capable of detecting the number of rotations as the motor 101 and using a photosensor to detect a light shielding plate. The vertical position of the display monitor 40 may be obtained by measuring the number of rotations of the motor 102 from a predetermined position.
FIG. 2 is a diagram for explaining the configuration of the optical system and the control system of the reflex / kerato measurement unit 4a and the intraocular pressure measurement unit 4b. First, the optical system of the reflex / kerato measurement unit 4a will be described. Reference numeral 10 denotes an eye refractive power measurement optical system for measuring the eye refractive power of the eye E, and includes a projection optical system that projects a measurement index on the fundus of the eye and a light receiving optical system that receives the reflected light.

  The dichroic mirror 29 that transmits the measurement light beam used in the measurement optical system 10 guides the fixation target light beam from the fixation target presentation optical system 30 to the eye E, and observes the reflected light from the anterior eye portion of the eye E to be examined. Guide to system 50. A fixation target 32, a light projection lens 33, a total reflection mirror 34, an objective lens 36, and a dichroic mirror 29 are arranged in order from the fixation light source 31 in the optical path of the fixation target presenting optical system 30. Has a role of presenting the fixation target 32 to the eye to be examined. In this case, clouding of the eye E is performed by moving the light source 31 and the fixation target plate 32 in the optical axis direction.

  A ring index projection optical system 45 that emits near-infrared light for projecting a ring index onto the cornea Ec of the eye E is provided in front of the anterior segment of the eye E. The ring projection optical system 45 is used not only as a projection optical system for projecting a ring-shaped index for measuring the corneal shape of the eye to be examined, but also as anterior segment illumination for illuminating the anterior segment of the eye E.

  The observation optical system 50 as an optical system for photographing the anterior segment of the eye to be examined shares the objective lens 36 and the dichroic mirror 29 of the fixation target presenting optical system 30, and is a dichroic that transmits visible light and reflects infrared light. A mirror 35 and an imaging lens 51 and a two-dimensional imaging element 52 disposed in the reflection direction of the dichroic mirror 35 are provided. An output from the image sensor 52 is input to the control unit 20. As a result, the anterior segment image of the eye E is imaged by the two-dimensional imaging element 52 via the dichroic mirror 29, the objective lens 36, the dichroic mirror 35, and the imaging lens 51 and displayed on the monitor 40.

  Next, the air (fluid) spraying mechanism of the intraocular pressure measurement unit 4b will be described with reference to FIG. The air (fluid) spraying mechanism has a cylinder 61 and a piston 62, and the cornea Ec of the eye E to be examined through the nozzle 63 when the piston 62 is moved in the compression direction in the cylinder 61 by the driving force of a rotary solenoid (not shown). It is injected toward Reference numeral 66 denotes a pressure sensor for detecting the pressure in the cylinder 61. A detection signal from the pressure sensor 66 is input to the control unit 20 and used for calculation of an intraocular pressure value.

  Reference numeral 70 denotes an infrared light source for anterior segment illumination, and four light sources are arranged around an optical axis Lb coinciding with the axis of the nozzle 63. A transparent glass plate 64 holds the nozzle 6 and transmits observation light and alignment light. Reference numeral 65 denotes a transparent glass plate provided on the back surface of the nozzle 6, which constitutes the rear wall of the air compression chamber and transmits observation light and alignment light. Behind the glass plate 65 is provided an anterior ocular segment observation optical system 76 that has an objective lens 72 and a two-dimensional light receiving element 75 and images the anterior ocular segment of the eye to be examined. In this case, the anterior segment image of the eye E to be examined by the light source 70 is captured by the two-dimensional light receiving element 75 via the glass plate 65 and the objective lens 72 and input to the control unit 20 and then displayed on the display monitor 40. Is displayed.

  In addition to the anterior ocular segment observation optical system 76, an alignment index projection optical system, a fixation lamp projection optical system, and the like are disposed in the optical path formed behind the glass plate 65 via a half mirror or the like. However, the description is omitted because it is not related to the present invention. When the intraocular pressure measurement unit 4b is used (when measuring intraocular pressure), the nozzle 63 provided in the intraocular pressure measurement 4b protrudes toward the eye E to be examined with respect to the forefront of the reflex / kerato measurement unit 4a. Used in.

  Reference numeral 90 denotes an infrared LED for corneal applanation detection. Light emitted from the LED 90 is converted into a parallel light beam by a collimator lens 91 and projected onto the cornea of the eye to be examined. The light reflected by the cornea passes through the light receiving lens 92 and the pinhole plate 95 and is received by the photodetector 96. The corneal applanation detection optical system is arranged so that the amount of light received by the photodetector 76 is maximized when the eye to be examined is in a predetermined applanation state. Here, the detection signal from the photodetector 96 is input to the control unit 20 and used for calculation of the intraocular pressure value.

  In FIG. 2, for convenience of explanation, these corneal deformation detection optical systems are illustrated as being vertically arranged, but are originally arranged in the left-right direction with respect to the eye to be examined.

  Next, the configuration of the control system will be described. The control unit 20 that controls the entire apparatus, calculates measurement values, and the like includes a display monitor 40, a Y drive unit 6, an XZ drive unit 7, in addition to each member provided in the reflex / kerat measurement unit 4a and the intraocular pressure measurement unit 4b. A switch unit in which various switch groups such as a drive unit 8, a memory 21 for storing measurement results, a rotation knob 5a, a measurement start switch 5b, a motor 101, a photo sensor 105, a photo sensor 106, a measurement mode selection switch 24a, and the like are arranged. 24 etc. are connected. Reference numeral 300 denotes a detection unit (not shown) (for example, a micro switch) that detects that the movable table 3 has moved to a predetermined rear position, and is used when the measurement mode is switched (for details, refer to Japanese Patent Application Laid-Open No. 2004-313758). .

  The operation of the ophthalmologic apparatus having the above configuration will be described. In the present embodiment, a case where the intraocular pressure is measured after the reflex / kerato measurement is described.

  In this case, the reflex kerato measurement is first performed as the eye optical characteristic measurement mode. However, the control unit 20 drives the Y drive unit 6 so that the measurement optical axis La of the reflex kerato measurement unit 4a and the eye E to be inspected. Make sure they are almost the same height (rough). In this case, the control unit 20 adjusts the height position of the measurement unit 4 so that the eye level confirmation line (not shown) formed on the face support unit 2 and the measurement optical axis La have substantially the same height. Further, the control unit 20 drives the drive unit 8 to retract the nozzle 63 in the housing of the measurement unit 4. Thereby, it becomes an apparatus form which can perform the reflex kerato measurement (refer Fig.1 (a)). In addition, the display monitor 40 is rotated in the vertical direction to change the elevation angle and adjust it so that it is easy to see.

  The control unit 20 drives the motor 101 so that the center of the screen of the display monitor 40 and the height of the measurement optical axis La are substantially the same. More specifically, the control unit 20 stops the driving of the motor 101 when the light shielding plate 107 is detected by the photosensor 105 whose position has been adjusted in advance for the reflex / kerato measurement mode. In this case, the initial position may be stored in the memory 21 in advance, and the height may be adjusted based on the stored vertical position information of the monitor 40.

  In the following description, in the reflex / kerato measurement, the right eye is measured first, and after the measurement of the right eye is completed, the measurement shifts to the measurement of the left eye. First, the X-, Y-, and Z-direction alignment of the reflex / kerato measurement unit 4a with respect to the right eye ER of the eye E is performed. Here, the examiner operates the joystick 5 and the rotary knob 5a while observing the monitor 40, and performs rough alignment. Then, the eye image F1 imaged by the two-dimensional image sensor 52 is displayed on the monitor 40, and the ring index R by the ring index projection optical system 45 is eventually imaged. (See FIG. 2). LT is a reticle that serves as an alignment reference during manual alignment.

  Here, the alignment is adjusted so that the reticle LT and the ring index R are concentric, the measurement start switch 5b is pushed by the examiner, and the measurement is started.

  Here, the control unit 20 measures the corneal shape of the eye E based on the shape of the ring index image R imaged by the image sensor 52 based on the input of the measurement start signal. Next, the control unit 20 measures the eye refractive power of the eye to be examined using the measurement optical system 10. In this case, fog is applied to the eye E by the above-described fixation target projection optical system 30.

  When the measurement of the right eye is completed, FINISH characters are displayed on the screen of the display monitor 40, and the examiner shifts to the measurement of the left eye based on this. The examiner moves the movable table 3 in the right direction with respect to the base 1 by operating the joystick 4, and measures the corneal shape and eye refractive power of the left eye in the same manner as the right eye. Then, the control unit 20 completes the measurement of the left eye when a predetermined measurement end condition is satisfied.

  When the measurement completion signal is issued, the control unit 20 displays a message on the monitor 40 indicating that the moving table 3 is moved backward. When the examiner operates the joystick 5 in accordance with this display to move the movable table 3 backward, the reflex / kerato measurement mode is detected by the detection signal of the detection unit 300 that detects that the movable table 3 has moved to a predetermined rear position. Switching to the intraocular pressure measurement mode is permitted, and a mode switching signal is issued by the control unit 20.

  Here, when a signal for switching to the intraocular pressure measurement mode is issued, the control unit 20 causes the optical axes of the measurement optical axis La and the measurement optical axis Lb to be at the height position of the measurement unit 4 after completion of the reflex / kerato measurement. The Y drive unit 6 is driven so as to move the measurement unit 4 downward by the distance.

  In addition, the control unit 20 uses the measurement mode by the Y drive unit 6 to set the display position of the display monitor 40 in the intraocular pressure measurement mode substantially the same as the display position of the display monitor 40 in the reflex / kerato measurement mode. The position of the display monitor 40 is corrected by moving the display monitor 40 corresponding to the vertical drive of the measurement unit 4 at the time of switching.

  More specifically, the control unit 20 drives the motor 101 to move the monitor 40 upward, and the light shielding plate 107 is detected by the photosensor 106 that has been previously adjusted for the intraocular pressure measurement mode. Then, the driving of the motor 101 is stopped. That is, the control unit 20 drives and controls the motor 101 so that the display monitor 40 is moved to a predetermined position based on the detection signal from the vertical position detection unit 104. Thereby, the vertical position of the monitor 40 is adjusted so that the center of the screen of the display monitor 40 (near the reticle LT) and the height of the measurement optical axis Lb are substantially the same. When the switching signal to the intraocular pressure measurement mode is input, the control unit 20 performs the measurement unit (second measurement) used in the measurement mode after switching in the drive control of the Y drive unit 6 based on the above-described measurement mode switching. The captured image obtained by the measurement unit 4b) is displayed on the display monitor 40 as an anterior ocular segment observation image.

  In addition, the control unit 20 drives the driving unit 8 to move the tonometry part 4b in a direction approaching the eye E, and the tip of the nozzle 63 is covered from the front surface of the housing of the reflex / kerat measurement part 4a. Position it on the examiner side.

  The operation after shifting to the intraocular pressure measurement mode (after shifting to an apparatus configuration capable of measuring intraocular pressure) will be described below.

  Here, the examiner operates the joystick 5 while observing the monitor 40, and aligns the intraocular pressure measurement unit 4b with the left eye EL of the eye E in the X, Y, and Z directions. When the alignment is completed, the examiner presses the measurement start switch 5b and inputs a trigger signal to drive a rotary solenoid (not shown). When the piston 62 is moved by driving the rotary solenoid, the air in the cylinder 61 is compressed, and the compressed air is blown from the nozzle 63 toward the cornea Ec. The cornea Ec is gradually deformed by the blowing of compressed air, and the maximum amount of light enters the photodetector 96 when it reaches a flat state. The control unit 20 obtains an intraocular pressure value based on the output signal from the pressure sensor 66 and the output signal from the photodetector 96. Then, the measurement result is displayed on the display monitor 40. Here, the measurement of the left eye is completed when a predetermined measurement end condition is satisfied. When the measurement of the left eye is completed, the examiner moves to the measurement of the right eye and performs the same measurement.

  In this way, the height of the display monitor 40 can be kept constant even when the measurement unit 4 is moved in the vertical direction by switching to the measurement mode, so that the examiner can maintain the same posture regardless of the measurement mode. This makes it possible to observe the anterior segment of the eye to be examined. Further, in the present embodiment, the height of the screen central portion (near the reticle LT) of the display monitor 40 and the measurement optical axis (optical axis La or optical axis Lb) used for measuring the eye characteristics are the same. By adjusting the position of the display monitor 40, the examiner can easily recognize the height of the eye to be examined regardless of the measurement mode.

  In the above description, the control unit 20 corrects the position of the display monitor 40 by driving the motor 101 in response to the vertical movement of the measurement unit 4 when the measurement mode is switched. The position of the monitor 40 is not corrected when the measurement unit 4 moves up and down at that time. Accordingly, the monitor 40 is not excessively moved with respect to the measurement unit 4 during alignment with the eye to be examined, and the positional relationship between the measurement optical axis and the monitor is maintained, so that the eye to be examined is easily observed.

  In the above description, the vertical movement of the display monitor 40 when shifting from the reflex / kerato measurement mode to the intraocular pressure measurement mode has been described. Conversely, when shifting from the intraocular pressure measurement mode to the reflex / kerato measurement mode The control unit 20 drives the motor 101 to move the monitor 40 downward in accordance with the switching of the measurement mode, so that the center of the screen of the display monitor 40 and the height of the measurement optical axis La become substantially the same height. Keep it like that.

  In the above configuration, the switch unit 24 is provided with a monitor position adjustment switch that is operated by the examiner to adjust the vertical position of the monitor 40 with respect to the measurement unit 4, and the examiner arbitrarily adjusts the position of the monitor 40. It may be possible to perform. In this case, for example, the control unit 20 drives the motor 101 based on an operation signal from the position adjustment switch. When the measurement mode switching signal is issued, the control unit 20 moves the monitor 40 up and down by the distance between the optical axes La and Lb in the vertical direction. In the above case, the position information of the display monitor 40 moved based on the operation signal from the position adjustment switch is stored in the memory 21 in correspondence with the measurement mode based on the detection signal from the vertical position detection unit 104. In the initial setting after power-on, the display monitor 40 may be moved to the vertical position of the display monitor 40 based on the position information of the monitor 40 stored in advance in the memory 21. When the measurement mode at the time of initial setting is different from the measurement mode when the vertical position of the display monitor 40 is stored, it is moved by a predetermined amount (for example, the distance between the optical axes) with respect to the stored vertical position. Corrections are made.

  In the above description, the display monitor 40 is moved in the vertical direction with respect to the measurement unit 4. However, the present invention is not limited to this, and the vertical movement of the measurement unit 4 when the measurement mode is switched. Any moving mechanism for adjusting the position of the display monitor with respect to the measurement unit 4 in order to correct the change in the position of the display monitor 40 associated therewith may be used. For example, as shown in FIGS. 3 and 4, a rotational movement mechanism 200 for adjusting the angle of the display monitor 40 with respect to the measurement unit 4 may be provided. 3 that have the same reference numerals as in FIG. 1 have the same configuration unless otherwise specified.

  More specifically, as shown in FIG. 4, the rotational movement mechanism 200 includes fixed portions 201 a and 201 b that are fixed to the measurement unit 4, and a rotary drive that has a rotation shaft that is fixed to the fixed portion 201 a and extends in the horizontal direction. Motor 202, and a rotation shaft 203 that is inserted through a hole formed in the fixing portion 201b and is arranged coaxially with the rotation shaft of the motor 202. In addition, the display monitor 40 is connected to the display unit 41, the rotating shaft of the motor 202 and connected to the display unit 41, and connected to the rotating shaft 203 and connected to the display unit 41. A portion 44 is provided. Here, when the motor 202 is driven to rotate, the connecting portion 43 connected to the rotating shaft of the motor 202 is rotated around the rotating shaft, so that the display monitor 40 including the display portion 41 is attached to the measuring unit 4. It is rotated. In this case, a position detection unit that detects the angular position of the display monitor 40 with respect to the measurement unit 4 is provided so that the display monitor 40 can be moved to a predetermined angular position in response to mode switching.

  The configuration is not limited to the electric configuration as described above, and may be a mechanical configuration as shown in FIG. Reference numeral 210 denotes a cam groove arm in which a cam groove 210 a is formed in an oblique direction, and is fixed to the movable table 3. Reference numeral 211 denotes a connecting portion that is connected to the monitor 40, and has a roller 211a that is movably disposed with respect to the cam groove 210a. Reference numeral 212 denotes a rotary connecting portion that rotatably connects the measurement unit 4 and the upper end of the display monitor 40, and has a rotary shaft 212a extending in the horizontal direction. In this case, when the measurement unit 4 is moved upward, the roller 210 is moved obliquely upward with respect to the cam groove 210a, and the monitor 40 is rotationally moved in the arrow B direction. When the measurement unit 4 is moved downward, the roller 210 is moved obliquely downward with respect to the cam groove 210a, and the monitor 40 is rotated in the direction of arrow A.

It is an external appearance block diagram of the ophthalmologic apparatus which concerns on this embodiment. It is a figure for demonstrating the structure of the optical system and control system of a reflex kerato measurement part and an intraocular pressure measurement part. It is a side schematic diagram explaining the rotation movement mechanism for adjusting the angle of the display monitor with respect to the measurement unit. It is an upper schematic diagram explaining the rotational movement mechanism for adjusting the angle of the display monitor with respect to the measurement unit. It is a side schematic diagram explaining the composition which adjusts the position of a display monitor mechanically.

Explanation of symbols

4 measurement unit 4a reflex kerato measurement unit 4b intraocular pressure measurement unit 6 Y drive unit 20 control unit 21 memory 40 display monitor 41 display unit 50 anterior ocular segment observation optical system provided in the reflex kerato measurement unit 76 intraocular pressure measurement unit An anterior ocular segment observation optical system 100 Display monitor movement mechanism 101 Motor 104 Vertical position detection unit 200 Rotation movement mechanism 202 Motor La Measurement optical axis of the Lef / Kerato measurement unit Lb Measurement optical axis of the intraocular pressure measurement unit

Claims (4)

A first measurement unit having a measurement optical system for measuring the first eye characteristic of the eye to be examined; and a second measurement unit having a measurement optical system for measuring the second eye characteristic of the eye to be examined. , A measurement unit in which the first and second measurement units are arranged such that the measurement optical axis of the first measurement unit and the measurement optical axis of the second measurement unit have different heights with respect to the eye to be examined;
Vertical drive means for moving the measurement unit up and down to position the measurement optical axes of the first and second measurement units with respect to the eye and measure the eye;
An anterior segment imaging means for imaging the anterior segment of the eye to be examined provided in the measurement unit;
A display monitor that is attached to the examiner of the measurement unit and displays an anterior ocular segment image taken by the anterior ocular segment imaging means;
In order to make the display position of the display monitor in the second measurement mode using the second measurement unit substantially the same position as the display position of the display monitor in the first measurement mode using the first measurement unit, An ophthalmologic apparatus comprising: monitor position correcting means for correcting the position of the display monitor by moving the display monitor corresponding to the vertical drive of the measurement unit when the measurement mode is switched by the vertical drive means. The ophthalmic device according to claim 1.
The monitor position correcting means includes a drive unit for electrically moving the display monitor with respect to the measurement unit;
Monitor position detecting means for detecting the position of the display monitor relative to the measurement unit;
An ophthalmologic apparatus comprising: a control unit that drives and controls the drive unit so that the display monitor is moved to a predetermined position based on a detection signal from the monitor position detection unit. The ophthalmic apparatus according to claim 2, wherein a monitor position adjusting switch operated by an examiner to adjust a position of the display monitor with respect to the measurement unit;
Storage means for storing position information of the display monitor moved based on an operation signal from the monitor position adjustment switch based on a detection signal from a monitor position detection means;
The ophthalmologic apparatus characterized in that the control means drives and controls the drive unit based on position information of the display monitor stored by the storage means. The ophthalmic apparatus according to claim 1, wherein the monitor position correcting unit includes an adjustment mechanism that moves the display monitor to adjust an angle or a height of the display monitor with respect to the measurement unit.

Images