JP6685114B2 - Ophthalmic equipment - Google Patents

Description

  The present invention relates to ophthalmic devices.

  The ophthalmologic apparatus is an apparatus capable of measuring the characteristics of the eye to be inspected and photographing the eye to be inspected using an optical system. Such an ophthalmologic apparatus includes an optometry apparatus for inspecting visual acuity, visual function, etc. by presenting a target to the eye to be inspected through an optical element.

  2. Description of the Related Art As an optometry device, there is known an optometry device capable of inspecting an eye to be examined by combining a subjective test and an objective measurement. For example, Patent Documents 1 to 3 each include an inspection unit for the left eye and an inspection unit for the right eye, and each of the inspection optical axis of the left eye (measurement optical axis) and the inspection optical axis of the right eye of the left eye. Disclosed is an optometry device that can be aligned with each of the optical axis and the optical axis of the right eye. In this optometry apparatus, each of the left-eye inspection unit and the right-eye inspection unit is rotatably provided around the eyeball rotation axis of the eye to be inspected.

International Publication No. 2010/1119859 JP, 2010-259495, A International Publication No. 2003/041571

  However, in the conventional apparatus, the support base provided with the inspection unit is attached to the support column extending upward from the pedestal portion, and the support column is configured to rotate around the eyeball rotation axis of the eye to be inspected. There is a problem that the device becomes large.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide an ophthalmologic apparatus capable of inspecting a subject with a compact configuration.

The ophthalmologic apparatus according to the embodiment includes a head unit and a moving mechanism. An optical system for inspecting the eye to be inspected is stored in the head portion. The moving mechanism is supported by the supporting member from above and moves the head portion. The moving mechanism includes a horizontal moving mechanism capable of moving the head portion in the horizontal direction, a rotating mechanism rotating the head portion around the first rotating shaft, and a vertical movement mechanism capable of moving the head portion in the vertical direction. including. The horizontal movement mechanism moves the rotation mechanism, the vertical movement mechanism, and the head portion, the rotation mechanism rotates the vertical movement mechanism and the head portion, and the vertical movement mechanism moves the head portion. The head portion is rotatable about a second rotation axis that is orthogonal to the first rotation axis. The second rotation axis is orthogonal to the optical axis at a position apart from the optical system along the optical axis of the optical system by a distance obtained by adding the standard distance between the apex of the cornea and the eyeball turning point to the working distance of the optical system. Can be arranged on a straight line.

  According to the ophthalmologic apparatus of the present invention, it is possible to inspect a subject with a compact structure.

The schematic diagram showing the appearance composition of the ophthalmologic apparatus concerning an embodiment. The schematic diagram showing the example of composition of the ophthalmologic apparatus concerning an embodiment. The schematic diagram showing the example of composition of the ophthalmologic apparatus concerning an embodiment. The schematic diagram showing the example of composition of the ophthalmologic apparatus concerning an embodiment. 1 is a schematic diagram showing a configuration example of an optical system of an ophthalmologic apparatus according to an embodiment. The schematic diagram showing the example of composition of the control system of the ophthalmologic apparatus concerning an embodiment. The schematic diagram showing the example of composition of the ophthalmologic equipment concerning the 1st modification of an embodiment. The schematic diagram showing the example of composition of the ophthalmologic equipment concerning the 2nd modification of an embodiment. The schematic diagram showing the example of composition of the ophthalmologic equipment concerning the 3rd modification of an embodiment. The schematic diagram showing the example of composition of the ophthalmologic equipment concerning the 3rd modification of an embodiment.

  The ophthalmologic apparatus according to the embodiment will be described in detail with reference to the drawings.

[Constitution]
FIG. 1 schematically shows the outline of the external configuration of the ophthalmologic apparatus according to the embodiment. The ophthalmologic apparatus 1 according to the embodiment is an apparatus capable of subjective examination and objective measurement. The subjective test is a test for presenting an optotype to the eye of the subject (eye to be examined) and acquiring information on the eye to be examined based on a response from the subject regarding the appearance. The objective measurement is a measurement for acquiring information about the eye to be inspected mainly by using a physical method without referring to the response from the subject.

  The ophthalmologic apparatus 1 can be communicatively connected to an examiner controller (for example, a tablet terminal) or an examinee controller (for example, a control lever unit) (not shown) via a wired or wireless communication path. The ophthalmologic apparatus 1 is controlled based on an operation performed on the examiner controller or the examinee controller. In the following description, the left-right direction when viewed from the subject is the X direction, the up-down direction is the Y direction, and the depth direction of the measurement head 100 when viewed from the subject is the Z direction. Further, in the following description, the vertical direction may be referred to as a substantially vertical direction.

  The ophthalmologic apparatus 1 includes a measurement head (refractor, phoropter) 100 and a control device 200. The measuring head 100 is provided with a moving mechanism that moves an optical system or an optical element for performing the above-described subjective test or objective measurement. The control device 200 controls the measuring head 100 and controls the inspector controller and the inspector controller.

  The ophthalmologic apparatus 1 includes an optometry table 3. The optometry table 3 is a desk for supporting the measurement head 100 and mounting an inspector controller or an inspector controller. The optometry table 3 is installed in a state of being supported on the floor by the support unit 4. The height of the optometry table 3 can be adjusted up and down.

  A column 5 is erected on the optometry table 3. The base end of the lateral arm 6 is held at the tip of the column 5. A measuring head 100 is suspended at the tip of the lateral arm 6. For example, the column 5 can be rotated in the axial direction (arrow direction j, arrow direction k) by the arm moving mechanism 7. As a result, the lateral arm 6 is rotated around the axis. That is, the measuring head 100 is rotated around the axis. As a result, the measurement head 100 can be retracted from the examination space above the optometry table 3, and the examination can be efficiently advanced by utilizing the empty space on the optometry table 3.

  The arm moving mechanism 7 may be an arm up-and-down moving mechanism that moves the tip end portion of the column 5 in the up-down direction (arrow direction h). As a result, the lateral arm 6 is moved in the vertical direction. That is, the measuring head 100 is moved in the vertical direction. The arm moving mechanism 7 may move the lateral arm 6 in the vertical direction by expanding and contracting the support column 5 projecting upward from the optometry table 3 as an arm expanding and contracting mechanism. Even in this case, the measuring head 100 can be retracted from the examination space above the optometry table 3.

  It is also possible to separately provide a table for storing the measuring head 100 and to arrange the measuring head 100 at a stable position by the above-described rotation and vertical movement. In this case, it is possible to continuously reduce the load on the lateral arm 6 due to the weight of the measuring head 100.

  The arm moving mechanism 7 is capable of manually moving the lateral arm 6 in the axial direction and the vertical direction in response to an operation by the operator. The arm moving mechanism 7 may move the lateral arm 6 by an electric mechanism. In this case, an actuator that generates a driving force for moving the arm moving mechanism 7 and a transmission mechanism that transmits the driving force are provided. The actuator is composed of, for example, a pulse motor. The transmission mechanism is composed of, for example, a combination of gears and a rack and pinion.

  A storage unit 9 is provided on the side surface of the support unit 4 to store the control device 200 and the like. The configuration of the optometry table 3 is not limited to the configuration shown in FIG.

[Measuring head]
The measurement head 100 includes a left-eye inspection unit 120L and a right-eye inspection unit 120R. The left eye inspection unit 120L and the right eye inspection unit 120R are provided with optometry windows 130L and 130R, respectively. The left eye (left eye to be inspected) of the subject is inspected through the eye examination window 130L. The right eye (right eye to be inspected) of the subject is inspected through the eye examination window 130R.

  FIG. 2 shows a block diagram of a configuration example of the measuring head 100 according to the embodiment. The measurement head 100 includes a moving mechanism 110, a left-eye inspection unit 120L, and a right-eye inspection unit 120R. The moving mechanism 110 is suspended from above by the horizontal arm 6. The left-eye inspection unit 120L and the right-eye inspection unit 120R are three-dimensionally moved by the moving mechanism 110 independently or in conjunction with each other. The left eye inspection unit 120L accommodates an optical system for inspection of the left eye to be inspected. The right-eye inspection unit 120R accommodates an optical system for inspecting the right eye to be inspected.

(Movement mechanism)
The moving mechanism 110 includes horizontal moving mechanisms 111L and 111R, rotating mechanisms 112L and 112R, and vertical moving mechanisms 113L and 113R. The moving mechanism 110 may further include the arm moving mechanism 7.

  The horizontal movement mechanism 111L moves the rotation mechanism 112L, the vertical movement mechanism 113L, and the left-eye inspection unit 120L in the horizontal direction (lateral direction (X direction), front-back direction (Z direction)). As a result, the horizontal position of the optometry window 130L can be adjusted according to the position of the left eye to be examined. The horizontal movement mechanism 111L has a known configuration using, for example, a driving unit and a driving force transmission unit that transmits the driving force generated by the driving unit, and receives the control signal from the control device 200 to rotate the mechanism 112L. Etc. are moved horizontally. The horizontal movement mechanism 111L can also be manually moved in the horizontal direction such as the rotation mechanism 112L described above in response to an operation by the operator.

  The horizontal movement mechanism 111R horizontally moves the rotation mechanism 112R, the vertical movement mechanism 113R, and the right-eye inspection unit 120R. Thereby, the horizontal position of the optometry window 130R can be adjusted according to the position of the right eye to be inspected. The horizontal movement mechanism 111R has the same configuration as the horizontal movement mechanism 111L, and receives the control signal from the control device 200 to move the rotation mechanism 112R and the like in the horizontal direction. The horizontal movement mechanism 111R can be manually moved in the horizontal direction by the operation of the operator, such as the rotation mechanism 112R.

  The rotation mechanism 112L rotates the vertical movement mechanism 113L and the left-eye inspection unit 120L around a rotation axis for the left eye (left rotation axis) extending in the vertical direction (substantially vertical direction). The angle formed by this rotation axis and the horizontal plane can be changed. The rotating mechanism 112L has a known configuration using, for example, a driving unit and a driving force transmitting unit that transmits the driving force generated by the driving unit, and receives the control signal from the control device 200 to rotate the rotating shaft. The inspection unit 120L for the left eye and the like are rotated around. The rotating mechanism 112L can also be operated by an operator to manually rotate the left-eye inspection unit 120L and the like around the rotating shaft.

  The rotation mechanism 112R rotates the vertical movement mechanism 113R and the right-eye inspection unit 120R about a right-eye rotation shaft (right rotation shaft) extending in the vertical direction. The angle formed by this rotation axis and the horizontal plane can be changed. The rotation axis for the right eye is an axis arranged at a position separated from the rotation axis for the left eye by a predetermined distance. The distance between the rotation axis for the left eye and the rotation axis for the right eye is adjustable. The rotating mechanism 112R has the same configuration as the rotating mechanism 112L, and receives the control signal from the control device 200 to rotate the right-eye inspection unit 120R and the like around the rotating shaft. The rotating mechanism 112R can also be manually rotated by the operator's operation around the rotating shaft, such as the right-eye inspection unit 120R.

  Rotating the left-eye inspection unit 120L and the right-eye inspection unit 120R by the rotating mechanisms 112L and 112R to relatively change the orientations of the left-eye inspection unit 120L and the right-eye inspection unit 120R. Is possible. For example, the left-eye inspection unit 120L and the right-eye inspection unit 120R are rotated in opposite directions about the eyeball rotation points of the right and left eyes of the subject. Thereby, the eye to be inspected can be converged.

  The vertical movement mechanism 113L moves the left-eye inspection unit 120L in the vertical direction (vertical direction, Y direction). Thereby, the position of the eye examination window 130L in the height direction can be adjusted according to the arrangement position of the eye to be inspected. The vertical movement mechanism 113L has a known configuration using, for example, a driving unit and a driving force transmitting unit that transmits the driving force generated by the driving unit, and receives a control signal from the control device 200 to inspect the left eye. The unit 120L is moved vertically. The vertical movement mechanism 113L is also capable of manually moving the left-eye inspection unit 120L in the vertical direction in response to an operation by the operator.

  The vertical movement mechanism 113R moves the right-eye inspection unit 120R in the vertical direction. Thereby, the position of the eye examination window 130R in the height direction can be adjusted according to the arrangement position of the eye to be inspected. The vertical movement mechanism 113R may move the right-eye inspection unit 120R in conjunction with the movement by the vertical movement mechanism 113L, or by moving the right-eye inspection unit 120R independently of the movement by the vertical movement mechanism 113L. Good. The vertical movement mechanism 113R has the same configuration as the vertical movement mechanism 113L, and receives the control signal from the control device 200 to move the right-eye inspection unit 120R in the vertical direction. The vertical movement mechanism 113R is also capable of manually moving the right-eye inspection unit 120R in the vertical direction in response to an operation by the operator.

  3 and 4 schematically show a configuration example of the moving mechanism 110 according to the embodiment. FIG. 3 schematically shows a perspective view showing a schematic configuration of the measuring head 100 according to the embodiment. FIG. 4 schematically shows a side view of the rotating mechanism 112L, the up-and-down moving mechanism 113L, the left-eye inspection unit 120L and the like when viewed from the lateral direction.

  The horizontal arm 6 supports at least the holding member 140 extending in the X direction from above as a supporting member. Horizontal movement mechanisms 111L and 111R are provided near both ends of the holding member 140 in the X direction. The horizontal movement mechanism 111L includes a Z direction movement mechanism 111ZL and an X direction movement mechanism 111XL. The horizontal movement mechanism 111R includes a Z-direction movement mechanism 111ZR and an X-direction movement mechanism 111XR. Regarding the moving mechanism 110, the mechanism for moving the left-eye inspection unit 120L and the mechanism for moving the right-eye inspection unit 120R are configured symmetrically. Hereinafter, unless otherwise specified, a mechanism for moving the left-eye inspection unit 120L will be described.

  The Z-direction moving mechanism 111ZL is fixed near one of both ends of the holding member 140 and moves the Z-direction moving member in the Z direction. An X-direction moving mechanism 111XL is fixed to the Z-direction moving member. Thereby, the Z-direction moving mechanism 111ZL can move the X-direction moving mechanism 111XL in the Z-direction. For example, a linear bearing is fixed to the holding member 140, and the Z-direction moving member is held by the holding member 140 so as to be movable in the Z direction by the linear bearing. The Z-direction moving mechanism 111ZL may be provided with an actuator that generates a driving force for moving the Z-direction moving member and a transmission mechanism that transmits this driving force. In this case, the Z-direction moving mechanism 111ZL moves the Z-direction moving member in the Z direction by the driving force generated by the actuator based on the control signal from the control device 200. Further, the Z-direction moving mechanism 111ZL can manually move the Z-direction moving member in the Z direction.

  The X-direction moving mechanism 111XL moves at least the arm member 141L extending in the Z direction in the X direction. Thereby, the X-direction movement mechanism 111XL can move the arm member 141L in the X-direction. For example, a linear bearing is fixed to the arm member 141L, and the arm member 141L is held by the Z-direction moving member so as to be movable in the X direction by the linear bearing. The X-direction moving mechanism 111XL may be provided with an actuator that generates a driving force for moving the arm member 141L and a transmission mechanism that transmits this driving force. In this case, the X-direction moving mechanism 111XL moves the arm member 141L in the X direction by the driving force generated by the actuator based on the control signal from the control device 200. The X-direction moving mechanism 111XL may manually move the arm member 141L in the X-direction.

  A rotating mechanism 112L is provided at the tip of the arm member 141L. At least the base end portion of the arm member 142L extending in the Z direction is connected to the rotating mechanism 112L. The rotating mechanism 112L rotates the arm member 142L around a rotating shaft CL extending in the Y direction. For example, the rotating mechanism 112L includes a worm gear, and the worm gear rotates the arm member 142L about the rotating shaft CL. The rotating mechanism 112L may be provided with an actuator that generates a driving force for rotating the arm member 141L and a transmission mechanism that transmits this driving force. In this case, the rotating mechanism 112L rotates the arm member 141L by the driving force generated by the actuator based on the control signal from the control device 200. The rotating mechanism 112L may manually rotate the arm member 141L.

  A base end portion of the vertical movement mechanism 113L is attached below the tip end portion of the rotating mechanism 112L. The left eye inspection unit 120L is attached to the tip of the vertical movement mechanism 113L. The vertical movement mechanism 113L moves the left-eye inspection unit 120L in the Y direction. For example, the vertical movement mechanism 113L includes a gear and a lifting screw, and the left-eye inspection unit 120L provided at the tip of the vertical movement mechanism 113L is rotated by rotating the lifting screw by rotating the gear. Move in Y direction. The vertical movement mechanism 113L may be provided with an actuator that generates a driving force for moving the left-eye inspection unit 120L and a transmission mechanism that transmits the driving force. In this case, the vertical movement mechanism 113L moves the left eye inspection unit 120L in the Y direction by the driving force generated by the actuator based on the control signal from the control device 200. Further, the vertical movement mechanism 113L may manually move the left-eye inspection unit 120L in the Y direction.

  The rotation axis CL is an optical axis at a position apart from the optical system along the optical axis OL of the optical system by a distance obtained by adding a predetermined distance VL to the working distance WD of the optical system housed in the left eye inspection unit 120L. It is arranged on a vertical line orthogonal to the OL (Fig. 4). In this embodiment, the rotation axis CL is arranged on the vertical line in a state where the alignment of the optical system of the left-eye inspection unit 120L with the left eye EL is matched. The predetermined distance may be a standard distance between the apex of the cornea and the point of eye rotation. The standard distance may be a distance defined by the model eye. The model eyes include Gullstrand model eyes. Thereby, the rotation axis CL can be arranged on the straight line (vertical line) passing through the eyeball rotation point EpL of the left eye to be examined EL, and the arm member 142L can be rotated around the eyeball rotation point EpL. Become.

  As described above, the horizontal movement mechanism 111L can move the rotation mechanism 112L, the vertical movement mechanism 113L, and the left eye inspection unit 120L in the horizontal direction. The rotation mechanism 112L can rotate the vertical movement mechanism 113L and the left eye inspection unit 120L about the rotation axis CL. The vertical movement mechanism 113L can move the left-eye inspection unit 120L in the Y direction.

  According to such a configuration, the horizontal movement mechanisms 111L and 111R are provided above the holding member 140, and the vertical movement mechanisms 113L and 113L are provided below the arm members 141L and 141R that are horizontally moved by the horizontal movement mechanisms 111L and 111R. 113R is provided. As a result, the size of the moving mechanism 110 in the vertical direction can be reduced. Further, since the left-eye inspection unit 120L and the right-eye inspection unit 120R are arranged below the arm members 141L and 141R, a space is provided between the subject and the measurement head 100, and the subject feels a sense of pressure. It becomes possible to undergo an inspection without having to have.

(Structure of each inspection unit)
The left-eye inspection unit 120L and the right-eye inspection unit 120R can operate individually.

  As shown in FIG. 2, the left-eye inspection unit 120L includes a first optotype presenting section 122L and a first objective measuring section 123L. The first optotype presenting unit 122L selectively presents a plurality of optotypes to the left eye to be examined. The first objective measurement unit 123L is used to perform objective refraction measurement of the left eye to be inspected. The left-eye inspection unit 120L may be provided with an optical element application unit that selectively applies a plurality of optical elements that can be arranged between the left eye to be examined and a deflection member P described below to the left eye to be examined. .

  The inspection unit 120R for the right eye includes a second optotype presenting unit 122R and a second objective measuring unit 123R. The second optotype presenting unit 122R selectively presents a plurality of optotypes to the right eye. The second objective measurement unit 123R is used to perform objective refraction measurement of the right eye to be inspected. The inspection unit 120R for the right eye may be provided with an optical element application section that selectively applies a plurality of optical elements that can be arranged between the right eye to be inspected and a deflection member P described below to the right eye to be inspected. .

  The left-eye inspection unit 120L and the right-eye inspection unit 120R house optical systems as shown in FIG. The left-eye inspection unit 120L and the right-eye inspection unit 120R operate their optical systems to perform a subjective test using the optotype presenting unit for each of the left eye EL and the right eye ER. It is configured to perform objective refraction measurement using the objective measurement unit. The inspector or the subject performs the inspection by appropriately operating the controller or the like.

  When the above-mentioned optical element application section is provided in each inspection unit, the optical element application section includes a plurality of optical elements and a drive mechanism. The plurality of optical elements are a set of various lenses for inspecting the visual function of the subject's eye, and include, for example, at least one of a spherical lens, a cylindrical lens, a progressive lens, and a prism lens. The plurality of optical elements are grouped for each type of optometry parameter. For example, the type of optometry parameter includes at least one of spherical power, astigmatic power, astigmatic axis angle, addition power, interpupillary distance, prism power, and prism direction. As a grouping for each type of optometry parameter, the set of spherical powers includes a plurality of spherical lenses, each of which is composed of spherical lenses having different spherical powers. The set of astigmatism diopters includes a plurality of cylindrical lenses, each of which is composed of cylindrical lenses of different astigmatism diopters. The sets of astigmatic powers may be further grouped for each astigmatic axis angle. The set of addition powers includes a plurality of progressive lenses, each of which is composed of progressive addition lenses having different addition powers. The set of prism powers includes a plurality of prism lenses, each of which is configured by a prism lens having a different prism power. The sets of prism powers may be further divided for each prism direction. The interpupillary distance is an inspection condition set according to the interpupillary distance of the eye to be inspected. The interpupillary distance is set by one or both of the left-eye inspection unit 120L and the right-eye inspection unit 120R sliding in the horizontal direction (arrow direction m in FIG. 1).

  The drive mechanism included in each inspection unit is configured so that each of the plurality of optical elements can be arranged in the eye examination window and can be retracted from the eye examination window. The drive mechanism included in each inspection unit receives the control signal from the control device 200 and switches the optical element. Accordingly, at least one of the spherical power, the astigmatic power, the astigmatic axis angle, the addition power, the interpupillary distance, the prism power, and the prism direction can be switched and applied to the subject's eye.

[Structure of optical system]
FIG. 5 shows a block diagram of a configuration example of the optical system housed in the left-eye inspection unit 120L and the right-eye inspection unit 120R. The left-eye inspection unit 120L includes a deflection member P, an optotype presenting optical system 10L, a photographing optical system 20L, an alignment optical system 30L, a reflex measuring optical system 40L, and a kerato measuring optical system 50L. The left eye inspection unit 120L is provided with an objective lens 60, a moving lens 70, a reflection mirror M, and beam splitters BS1 to BS3. The deflecting member P included in the left eye inspection unit 120L can be arranged, for example, below the vertical movement mechanism 113L. The right-eye inspection unit 120R includes a deflecting member P, an optotype presenting optical system 10R, a photographing optical system 20R, an alignment optical system 30R, a reflex measuring optical system 40R, and a kerato measuring optical system 50R. The right-eye inspection unit 120R is provided with an objective lens 60, a moving lens 70, and beam splitters BS1 to BS3. The deflecting member P included in the right-eye inspection unit 120R can be arranged, for example, below the vertical movement mechanism 113R. The optical system of the inspection unit 120L for the left eye and the optical system of the inspection unit 120R for the right eye are configured symmetrically. Hereinafter, unless otherwise specified, the optical system of the left-eye inspection unit 120L will be described.

  The optotype presenting optical system 10L is an optical system for projecting the optotype on the fundus Ef of the left eye to be examined EL. The optotype presenting optical system 10L includes an LCD (Liquid Crystal Display) 11. The LCD 11 displays various optotypes (charts) for optometry and eye position examination. The LCD 11 has visual indicators such as a fixation target consisting of a landscape chart, a visual acuity chart such as a Landolt ring for a visual acuity test, a cross cylinder test chart, a radiation chart for an astigmatism test, a cross chart for an oblique position test, and a red-green test chart. Marks are selectively displayed.

  The moving lens 70 is movable in the optical axis direction of the optotype presenting optical system 10L. The moving lens 70 is moved by the drive mechanism 70L. The drive mechanism 70L receives the control signal from the control device 200 and moves the moving lens 70. Thereby, it is possible to change the sphericity added to the left eye EL. For example, by moving the moving lens 70 in the optical axis direction by a movement amount corresponding to the refractive power of the left eye E to be inspected, it is possible to perform a fixation cloud on the left eye E to be inspected.

  The light from the LCD 11 passes through the moving lens 70 and is reflected by the reflection mirror M. The light reflected by the reflection mirror M passes through the beam splitter BS2 and is reflected by the beam splitter BS1. The light reflected by the beam splitter BS1 passes through the objective lens 60 and is deflected by the deflecting member P toward the fundus Ef of the left eye to be examined EL.

  The optotype presenting optical system 10L may be provided with a VCC lens for adjusting the astigmatic power and the astigmatic axis angle of the left eye EL and a rotary prism for adjusting the prism power and the prism base direction.

  The imaging optical system 20L is an optical system for imaging the anterior segment of the left eye EL to be examined. The photographing optical system 20L includes a CCD (Charged-Coupled Device) 21. For example, when the anterior segment of the left eye EL to be examined is illuminated by an anterior segment illumination system (not shown), the reflected light from the anterior segment of the left examinee EL enters the deflecting member P. The deflecting member P deflects the reflected light toward the objective lens 60. The reflected light deflected by the deflecting member P passes through the objective lens 60, the beam splitters BS1 and BS3, and is imaged on the light receiving surface of the CCD 21 by a CCD lens (not shown) or the like. Further, the photographing optical system 20L functions as a light receiving system that receives the reflected light of the measurement light beam projected on the left eye EL in the reflex measurement and the kerato measurement.

  The alignment optical system 30L is an optical system for performing alignment in the XY directions of the optical system of the left-eye inspection unit 120L with respect to the left eye EL. The alignment optical system 30L projects a light beam (spot light) for alignment onto the left eye EL to be inspected. The alignment light flux is reflected by the beam splitter BS3, transmitted through the beam splitter BS1, passes through the objective lens 60, and is deflected by the deflection member P toward the fundus Ef of the left eye to be examined EL. The reflected light of the alignment light beam projected on the left eye EL is returned through the same path as the incident path, passes through the beam splitter BS3, and is received by the CCD 21 of the imaging optical system 20L.

  The ref measurement optical system 40L is an optical system for performing reflex measurement (objective refraction measurement) of the left eye EL. The light beam for reflex measurement emitted from the reflex measurement optical system 40L is reflected by the beam splitter BS2, reflected by the beam splitter BS1, passes through the objective lens 60, and is directed by the deflecting member P toward the fundus Ef of the left eye to be examined EL. Be biased. The reflected light of the light beam for reflex measurement projected on the left eye EL is returned through the same path as the incident path, passes through the beam splitters BS1 and BS3, and is received by the CCD 21 of the imaging optical system 20L.

  The kerato measurement optical system 50L is an optical system for performing kerato measurement on the left eye EL. When the ring-shaped light flux from the kerato-ring light source emitted by the kerato measurement optical system 50L is reflected by the cornea of the left eye EL to be inspected, the deflection member P causes the ring-shaped light flux from the anterior segment of the left eye EL to be inspected. The reflected light of is incident. The reflected light deflected by the deflecting member P passes through the objective lens 60, the beam splitters BS1 and BS3, and is imaged on the light receiving surface of the CCD 21 by a CCD lens (not shown) or the like.

  The left-eye inspection unit 120L includes an optical system (not shown) for performing alignment in the Z direction of the optical system of the left-eye inspection unit 120L with respect to the left eye to be examined EL. Such an optical system includes a light source that irradiates the left eye to be examined EL with light (infrared light) for performing alignment in the optical axis direction (Z direction). The right-eye inspection unit 120R includes an optical system (not shown) for performing alignment in the Z direction of the optical system of the right-eye inspection unit 120R with respect to the right eye ER, similarly to the left-eye inspection unit 120L. . Such an optical system includes a light source that irradiates the right eye ER with light (infrared light) for performing alignment in the optical axis direction (Z direction).

  The measurement head 100 automatically performs alignment of each optical system of the left-eye inspection unit 120L and the right-eye inspection unit 120R, objective optometry, and subjective optometry under the control of a control system described later. It is supposed to do. The measuring head 100 may further automatically execute a binocular balance test. In the subjective test, the value obtained by the objective measurement (objective value) is used. Particularly, in the cross cylinder test of the subjective test, the astigmatic power and the astigmatic axis angle obtained in the objective test are used.

[Control system]
Next, the control system of the ophthalmologic apparatus 1 of the embodiment will be described with reference to FIG. The block diagram shown in FIG. 6 shows a schematic configuration of a main part of a control system of the ophthalmologic apparatus 1. 6, parts similar to those in FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  As shown in FIG. 6, the control system of the ophthalmologic apparatus 1 mainly includes a control device 200 that controls each part of the apparatus. The control device 200 is stored in the storage unit 9, for example. The control device 200 includes a control unit 201 and a storage unit 202.

  The storage unit 202 stores a computer program for an ophthalmic examination including a control program for executing a process described below, image data of a target pattern displayed on the LCD 11, and the like. Further, the storage unit 202 stores an image of the anterior segment of the left eye to be examined EL, the image of the anterior segment of the right eye to be examined ER, the reflex measurement result, the kerato measurement result, and the like acquired by using the imaging optical systems 20L and 20R. Is saved. The control unit 201 reads out the computer program stored in the storage unit 202, and sequentially executes the computer programs while referring to the image data stored in the storage unit 202. Such a control unit 201 includes a processor for arithmetic control such as a CPU (Central Processing Unit).

  A computer device (not shown) may be connected to the ophthalmologic apparatus 1. In this case, the computer device is used as a console of the ophthalmologic apparatus 1 and is also used for accumulating and managing the examination results by the ophthalmologic apparatus 1. It should be noted that the CPU and the storage device of this computer device can be configured as the control device 200.

  The control device 200 (control unit 201) controls the operation of the left-eye inspection unit 120L and the right-eye inspection unit 120R. Specifically, the control device 200 controls the horizontal movement mechanism 111L and the horizontal movement mechanism 111R, respectively. The control device 200 controls the rotating mechanism 112L and the vertically moving mechanism 113L that moves vertically. Similarly, the control device 200 controls the rotation mechanism 112R and the vertical movement mechanism 113R, respectively. The control device 200 may control the arm moving mechanism 7 that vertically moves or rotates the lateral arm 6.

  The control device 200 (control unit 201) controls the operations of the optical systems stored in the left-eye inspection unit 120L and the right-eye inspection unit 120R. The control device 200 executes, for example, display control of the LCD 11, operation control of the drive mechanisms 70L and 70R that move the moving lens 70 in the optical axis direction, and the like. Display control of the LCD 11 includes optotype switching control, optotype lighting control, optotype extinction control, and the like.

  The control device 200 executes light receiving control by the CCD 21, operation control of the alignment optical systems 30L and 30R, the ref measuring optical systems 40L and 40R, the kerato measuring optical systems 50L and 50R, and the like. The left-eye inspection unit 120L for the left eye to be inspected EL so that the displacement between the position of the image of the spot light projected on the left eye to be inspected EL by the alignment optical system 30L and the position of the center of the pupil of the left eye to be inspected EL is canceled. It is possible to perform alignment in the XY directions of the optical system. Similarly, the alignment optical system 30R can perform alignment in the XY directions of the optical system of the right-eye inspection unit 120R with respect to the right eye ER. The operation control of the reflex measurement optical systems 40L and 40R includes control of a measurement light source that emits a light beam for reflex measurement. The operation control of the kerato measurement optical systems 50L and 50R includes control of a kerato ring light source.

  The control device 200 can perform alignment in the Z direction. When light (infrared light) for performing alignment in the optical axis direction (Z direction) is applied to the left eye EL, the imaging optical system 20L causes the CCD 21 to reflect the light reflected by the cornea of the left eye EL. Receive light. When the position of the apex of the cornea changes in the front-back direction, the projection position of light on the CCD 21 changes. The arithmetic part 210 obtains the position of the apex of the cornea of the left eye EL to be examined based on the projection position of the light on the CCD 21. The control device 200 controls the horizontal movement mechanism 111L and the like based on the position of the apex of the cornea obtained by the calculation unit 210 to move the optical system in the Z direction. The alignment of the optical system of the right-eye inspection unit 120R with respect to the right eye ER in the Z direction is similarly performed.

  When an optical element application unit is provided in each inspection unit, the control device 200 (control unit 201) is a drive mechanism for selectively applying a plurality of optical elements to at least one of the left eye EL and the right eye ER. Control of.

  The control device 200 (control unit 201) controls the calculation unit 210. The arithmetic part 210 obtains an objective value based on the measurement result of the objective refraction measurement using the left-eye inspection unit 120L or the right-eye inspection unit 120R. The calculation unit 210 analyzes the shape of the ring visual target image obtained by the CCD 21 receiving the ring-shaped measurement luminous flux projected on the fundus Ef by the reflex measurement optical systems 40L and 40R by a known method, for example. To obtain the objective value. The calculation unit 210 performs a predetermined calculation process on an image acquired by receiving, by the CCD 21, a reflected light beam from the cornea of a ring-shaped light beam projected on the cornea of the eye to be inspected by the kerato measurement optical systems 50L and 50R, for example. Give. Thereby, it is possible to calculate the parameter representing the shape of the cornea as the objective value. The control device 200 may include a calculation unit 210.

  The control device 200 executes all kinds of operation control and data processing of the ophthalmologic apparatus 1 in addition to the above control.

  The control device 200 can be connected to the examiner controller 300 and the examinee controller 310 via wired or wireless communication paths, respectively. The control device 200 controls each unit of the ophthalmologic apparatus 1 by receiving an operation signal corresponding to the operation content on the examiner controller 300 or the examinee controller 310. The control device 200 can display an operation screen, various information for performing measurement, and the like on the display unit of the inspector controller 300 or the inspector controller 310.

  Since the operation principle of alignment using the above-mentioned optical system, the measurement principle of subjective test, the measurement principle of objective measurement, the measurement principle of cornea shape, etc. are already known, detailed description thereof will be omitted.

  The function of the first optotype presenting unit 122L is realized by the optotype presenting optical system 10L included in the left-eye inspection unit 120L. The function of the second optotype presenting unit 122R is realized by the optotype presenting optical system 10R included in the right-eye inspection unit 120R.

  The function of the first objective measurement unit 123L is realized by the ref measurement optical system 40L and the kerato measurement optical system 50L included in the left eye inspection unit 120L. The function of the second objective measuring unit 123R is realized by the ref measuring optical system 40R and the kerato measuring optical system 50R included in the right eye inspection unit 120R.

  In the ophthalmologic apparatus 1 having the above-described configuration, the control device 200 performs alignment of the optical system with respect to the left eye EL and the right eye ER by the alignment optical systems 30L and 30R and the optical system for performing alignment in the Z direction. Run. Thereby, in the state where the alignment of the optical system of the left eye inspection unit 120L with the left eye E to be examined is matched, the rotation axis CL is a predetermined distance to the working distance WDL of the optical system accommodated in the left eye inspection unit 120L. It is arranged on a vertical line orthogonal to the optical axis OL at a position separated from the optical system along the optical axis OL of the optical system by a distance obtained by adding VL. Further, in the state where the alignment of the optical system of the right eye inspection unit 120R with respect to the right eye ER is matched, the rotation axis CR has a predetermined distance VR to the working distance WDR of the optical system accommodated in the right eye inspection unit 120R. Are arranged on a vertical line orthogonal to the optical axis OR at a position away from the optical system along the optical axis OR of the optical system by a distance obtained by adding. WDL may have a different value or the same value as WDR. VL may have a different value from VR or the same value. Note that, without using the above-mentioned alignment optical system 30L or the like, an examiner or a subject manually moves or rotates the measurement head 100 to align the optical system with respect to the left eye EL and the right eye ER. You may do it.

  Therefore, the rotation axis CL can be arranged on the vertical line passing through the eyeball rotation point EpL of the left eye to be examined EL, and the left eye inspection unit 120L can be rotated around the eyeball rotation point EpL. Thereby, the inspection can be performed in a state where the optical axis of the left eye to be inspected EL is aligned with the optical axis of the optical system of the left eye inspection unit 120L. Further, the rotation axis CR can be arranged on the vertical line passing through the eyeball rotation point EpR of the right eye ER, and the right-eye inspection unit 120R can be rotated around the eyeball rotation point EpR. Accordingly, the inspection can be performed in a state where the optical axis of the right eye ER is aligned with the optical axis of the optical system of the right eye inspection unit 120R.

  Further, even when performing the near vision test or the divergence / convergence test, it becomes possible to control only the rotating mechanisms 112L and 112R. Therefore, conventionally, it was necessary to sequentially perform the movement in the X direction, the movement in the Z direction, and the rotation around the rotation axes CL and CR, but in the embodiment, the rotation axes CL and CR are performed. It is sufficient to control only the rotation centering around. Therefore, the movement mechanism 110 included in the ophthalmologic apparatus 1 can be simplified and the movement mechanism 110 can be operated smoothly.

  The left-eye inspection unit 120L and the right-eye inspection unit 120R are examples of the "head portion" according to the embodiment. The lateral arm 6 is an example of a “support member” according to the embodiment. The rotation axes CL and CR are examples of the “first rotation axis” according to the embodiment. The left-eye inspection unit 120L is an example of the “left head portion” according to the embodiment. The right-eye inspection unit 120R is an example of the “right head unit” according to the embodiment. The horizontal movement mechanism 111L, the rotation mechanism 112L, and the vertical movement mechanism 113L are examples of the “first movement mechanism” according to the embodiment. The horizontal movement mechanism 111R, the rotation mechanism 112R, and the vertical movement mechanism 113R are examples of the “second movement mechanism” according to the embodiment. The optical system (see FIG. 5) housed in the left eye inspection unit 120L is an example of the “left optical system” according to the embodiment. The optical system (see FIG. 5) housed in the right-eye inspection unit 120R is an example of the “right optical system” according to the embodiment. The optotype presenting optical systems 10L and 10R are examples of the “optotype presenting unit” according to the embodiment. The ref measurement optical systems 40L and 40R and the kerato measurement optical systems 50L and 50R are examples of the “objective measurement unit” according to the embodiment.

[Modification]
In the embodiment, the case where each of the left-eye inspection unit 120L and the right-eye inspection unit 120R rotates about the rotation axis that extends in the substantially vertical direction through the eyeball turning points EpL and EpR has been described. The configuration of the ophthalmologic apparatus according to the embodiment is not limited to this. Each of the left-eye inspection unit 120L and the right-eye inspection unit 120R according to the embodiment may rotate around a rotation axis that extends in a substantially horizontal direction through the eyeball rotation points EpL and EpR. This makes it possible to incline the optical axes of the optical systems housed in the left-eye inspection unit 120L and the right-eye inspection unit 120R with respect to the horizontal plane.

(First modification)
FIG. 7 schematically shows the outline of the external configuration of the ophthalmologic apparatus according to the first modified example of the embodiment. In the first modified example, a movable support member 5A that is movable with respect to the column 5 is provided. A tightening screw 5B and a rotation center portion 5C are provided near the base end portion of the movable support member 5A. The movable support member 5A is fixed to the column 5 by tightening the tightening screw 5B by an operator or the like. By releasing the tightening of the tightening screw 5B by an operation of an examiner or the like, the movable support member 5A is rotated with respect to the support column 5 about the rotation axis Ox passing through the rotation center portion 5C. The rotation axis Ox passing through the rotation center portion 5C adds the standard distance between the corneal apex and the eyeball rotation point to the working distance of the optical system housed in each of the left-eye inspection unit 120L and the right-eye inspection unit 120R. It can be arranged on a straight line orthogonal to the optical axis at a position separated from the optical system along the optical axis of the optical system. That is, the rotation axis Ox can be arranged on a straight line that passes through the eyeball rotation point EpL of the left eye to be examined EL and the eyeball rotation point EpR of the right eye to be examined ER. This straight line is orthogonal to each of the straight lines on which the rotation axis CL of the rotation mechanism 112L and the rotation axis CR of the rotation mechanism 112L are arranged. The rotation axis Ox may be arranged on the straight line in a state where the alignment of the optical system of the measurement head 100 with respect to the eye to be inspected is matched. The base end of the lateral arm 6 is held at the tip of the movable support member 5A (see FIG. 3).

  According to the above configuration, the measuring head 100 can be rotated about the rotation axis Ox orthogonal to the rotation axes CL and CR. Thereby, the depression angle of the measurement head 100 can be changed. Therefore, the inspection can be performed in a state where the optical axis of the left eye to be inspected EL is aligned with the optical axis of the optical system of the left eye inspection unit 120L. Further, the inspection can be performed in a state where the optical axis of the right eye ER is aligned with the optical axis of the optical system of the right eye inspection unit 120R.

(Second modified example)
FIG. 8 schematically shows the outline configuration of the ophthalmologic apparatus according to the second modified example of the embodiment. 8, the same parts as those in FIG. 7 are designated by the same reference numerals, and the description thereof will be omitted as appropriate. The configuration of the ophthalmologic apparatus according to the second modification differs from the configuration of the ophthalmologic apparatus according to the first modification in the position where the tightening screw 5B and the rotation center portion 5C are arranged. In the second modification, the tightening screw 5B and the rotation center portion 5C are provided above the movable support member 5A, and the rotation axis Ox ′ passing through the rotation center portion 5C is located at a position separated from the rotation axis Ox by a predetermined distance. It is located in. The rotation axis Ox ′ may be an axis parallel to the rotation axis Ox. For example, a handle portion is provided on the side surface of the horizontal arm 6, and an examiner or the like rotates the horizontal arm 6 about the rotation axis Ox ′ by using the handle portion, so that the measurement head 100 moves along the rotation axis Ox ′. It rotates to the center, and the depression / elevation angle of the measuring head 100 is also changed.

(Third modification)
In the first modified example and the second modified example, as shown in FIG. 1, the measurement head 10 is hung from above at the tip of the lateral arm 6 provided at the tip of the column 5 standing on the optometry table 3. The case where the depression angle of the measurement head 100 is changed when the measurement head 100 is lowered has been described. In the third modified example, a configuration example in which the depression angle of the measurement head 100 is changed when the measurement head 10 is suspended from above in a device that can be placed on a desk such as the optometry table 3 will be described. .

  9A and 9B schematically show an external configuration of an ophthalmologic apparatus according to a third modified example of the embodiment. FIG. 9A schematically shows a side view of the ophthalmologic apparatus before changing the depression angle of the measurement head 100. FIG. 9B schematically shows a side view of the ophthalmologic apparatus when the depression angle of the measurement head 100 is changed.

  In the third modified example, the support column 401 is erected on the pedestal portion 400. An arcuate guide member 402 that is curved so that the center of curvature is located on the side where the eye to be inspected is placed is fixedly provided on the column 5 (for example, the tip portion thereof). On the outer peripheral side of the guide member 402, an arcuate movable member 405 that is movable along the outer periphery of the guide member 402 is provided. The movable member 405 is fixed to the guide member 402 by tightening a tightening screw 404 provided on the tightening portion 403. By releasing the tightening of the tightening screw 404, the movable member 405 is arranged along the outer circumference of the guide member 402 on a straight line passing through the eyeball rotation point EpL of the left eye E to be examined EL and the eyeball rotation point EpR of the right eye ER to be examined. It is rotatable about the rotation axis Ox (arrow direction r in FIG. 9A). In a state where the alignment of the optical system of the measurement head 100 with respect to the eye to be examined is matched, the rotation axis Ox can be arranged on a straight line passing through the eyeball rotation point EpL of the left eye to be examined EL and the eyeball rotation point EpR of the right eye to be examined ER. It may be. The movable member 405 is fixed to a support member (a member corresponding to the lateral arm 6 in FIG. 3) that supports the holding member 140 shown in FIG. 3 and the like from above.

  For example, by releasing the tightening of the tightening screw 404, the movable member 405 is moved along the outer periphery of the guide member 402, and the tightening of the tightening screw 404 fixes the movable member 405 at a desired position. With the movement of the movable member 405, the measurement head 100 is rotated about the rotation axis Ox. As a result, the orientation of the measuring head 100 is changed, and the depression angle of the measuring head 100 is changed.

  In the first modification to the third modification, the rotation axis Ox is an example of the “second rotation axis” according to the embodiment.

[effect]
The effects of the ophthalmologic apparatus according to the embodiment will be described.

  The ophthalmologic apparatus (ophthalmologic apparatus 1) according to the embodiment includes a head unit (left eye inspection unit 120L, right eye inspection unit 120R) and a moving mechanism (moving mechanism 110). An optical system for inspecting an eye (left eye EL, right eye ER) is stored in the head portion. The moving mechanism is supported from above by a supporting member (lateral arm 6) and moves the head portion. The moving mechanism includes a horizontal movement mechanism (horizontal movement mechanisms 111L and 111R) capable of moving the head portion in the horizontal direction, and rotation for rotating the head portion around the first rotation shaft (rotation shafts CL and CR). It includes a mechanism (rotating mechanism 112L, 112R) and a vertical moving mechanism (vertical moving mechanism 113L, 113R) capable of moving the head portion in the vertical direction. The horizontal movement mechanism moves the rotation mechanism, the vertical movement mechanism, and the head portion, the rotation mechanism rotates the vertical movement mechanism and the head portion, and the vertical movement mechanism moves the head portion.

  With such a configuration, in the moving mechanism supported from above by the support member, the horizontal moving mechanism moves the rotating mechanism, the vertical moving mechanism, and the head portion, and the rotating mechanism moves the vertical moving mechanism and the head portion. Then, the vertical movement mechanism moves the head portion. As a result, the rotating mechanism can be arranged above the eye to be inspected and the vertical movement mechanism can be arranged below the rotating mechanism, so that the vertical size of the moving mechanism can be reduced. In addition, a space is provided between the subject and the head portion, so that the subject can take the examination without feeling pressure.

  Further, in the ophthalmologic apparatus according to the embodiment, the head unit may be rotatable about the second rotation axis (rotation axis Ox) orthogonal to the first rotation axis.

  With such a configuration, it is possible to provide an ophthalmologic apparatus capable of changing the depression / elevation angle of the head portion. As a result, the subject can take the examination in a posture that does not burden him.

  Further, in the ophthalmologic apparatus according to the embodiment, the second rotation axis has the optical axis of the optical system (optical axis OL, optical axis OL, which corresponds to the working distance of the optical system plus the standard distance between the corneal apex and the eyeball turning point). (OR) and may be arranged on a straight line orthogonal to the optical axis at a position away from the optical system.

  In such a configuration, the head portion is arranged on a straight line orthogonal to the optical axis at a predetermined position along the optical axis of the optical system by a distance obtained by adding the standard distance to the working distance of the optical system. It is rotated about the second rotation axis. Thereby, the second rotation axis can be arranged on a straight line passing through the eyeball rotation point of the eye to be inspected, and the head portion can be rotated around the eyeball rotation point even when the depression / elevation angle of the head portion is changed. This makes it possible to perform the examination in a state where the optical axis of the eye to be inspected is aligned with the optical axis of the optical system housed in the head portion.

  Further, in the ophthalmologic apparatus according to the embodiment, the second rotation axis may be arranged on the straight line in a state where the alignment of the optical system with respect to the subject's eye is matched.

  According to such a configuration, it is possible to provide an ophthalmologic apparatus capable of reducing the burden on the subject by performing the alignment.

  Further, in the ophthalmologic apparatus according to the embodiment, the optical system includes an optotype presenting unit (optotype presenting optical systems 10L and 10R) that presents an optotype to the subject's eye, and another for performing objective refraction measurement of the subject's eye. The sensation measurement unit (ref measurement optical systems 40L and 40R, kerato measurement optical systems 50L and 50R) can be included.

  According to such a configuration, it is possible to provide an ophthalmologic apparatus capable of performing a subjective test and an objective measurement with a compact configuration.

  Further, in the ophthalmologic apparatus according to the embodiment, the head unit includes a left head unit (left eye inspection unit 120L) that stores a left optical system for performing an inspection of the left eye to be examined (left eye to be examined EL), and a right portion. A right head unit (right eye inspection unit 120R) that stores a right optical system for performing an inspection of an eye to be inspected (right eye ER). The moving mechanism includes a first moving mechanism (horizontal moving mechanism 111L, a turning mechanism 112L, a vertical moving mechanism 113L) that moves the left head portion, and a second moving mechanism (horizontal moving mechanism 111R, turning movement) that moves the right head portion. Mechanism 112R and vertical movement mechanism 113R). The first moving mechanism includes a horizontal moving mechanism (horizontal moving mechanism 111L) capable of moving the left head portion horizontally, a turning mechanism (turning mechanism 112L) turning the left head portion, and a left head moving vertically. And a vertical movement mechanism (vertical movement mechanism 113L) capable of moving the unit. The second moving mechanism includes a horizontal movement mechanism (horizontal movement mechanism 111R) capable of moving the right head portion in the horizontal direction, a rotation mechanism (rotation mechanism 112R) that rotates the right head portion, and a right head in the vertical direction. An up-and-down moving mechanism (up-and-down moving mechanism 113R) that can move the unit may be included.

  With such a configuration, it is possible to provide an ophthalmologic apparatus capable of performing a binocular examination with a compact configuration.

[Other]
The above-described embodiment or its modification is not limited to the configuration of the optical system described in FIG. 5 and the configuration of the control system described in FIG. 6 and control contents. For example, the objective measurement may include objective measurement for measuring a value relating to the subject's eye and imaging for obtaining an image of the subject's eye. Such objective measurement includes, for example, objective refraction measurement, corneal shape measurement, intraocular pressure measurement, fundus imaging, and OCT (Optical Coherence Tomography) measurement using the OCT method. Further, the subjective examination includes, for example, subjective refraction measurement such as distance examination, near vision examination, contrast examination, and glare examination, and visual field examination.

  Further, the ophthalmologic apparatus according to the embodiment, as a subjective test, it is possible to perform a distance test, a near test, a contrast test, a glare test, and the like, and as an objective measurement, an objective refraction measurement, a corneal shape measurement, It may be a device capable of performing OCT measurement and the like. In the OCT measurement, acquisition of eyeball information representing the structure of the eye to be inspected such as the axial length, corneal thickness, anterior chamber depth, and lens thickness may be performed.

  In the horizontal movement mechanism 111L (111R) according to the above-described embodiment or its modification, the holding member 140 holds the Z-direction movement mechanism 111ZL (111ZR), and the Z-direction movement mechanism 111ZL (111ZR) is used in the X-direction movement mechanism 111XL (. (111XR) is described as an example, but the configuration of the horizontal movement mechanism according to the embodiment is not limited to this. For example, the holding member 140 may hold the X-direction moving mechanism 111XL (111XR), and the X-direction moving mechanism 111XL (111XR) may move the Z-direction moving mechanism 111ZL (111ZR).

  The configuration described above is merely an example for preferably implementing the present invention. Therefore, any modification (omission, replacement, addition, etc.) within the scope of the present invention can be appropriately performed.

1 Ophthalmologic apparatus 100 Measuring head 110 Moving mechanism 111L, 111R Horizontal moving mechanism 112L, 112R Rotating mechanism 113L, 113R Vertical moving mechanism 120L Left eye inspection unit 120R Right eye inspection unit 122L First optotype presenting section 122R Second view Labeling unit 123L First objective measuring unit 123R Second objective measuring unit 200 Control device

Claims (4)

A head part in which an optical system for performing an examination of an eye to be inspected is stored,
A moving mechanism that is supported from above by a supporting member and that moves the head portion;
Including,
The moving mechanism is
A horizontal movement mechanism capable of moving the head portion in the horizontal direction,
A rotation mechanism that rotates the head portion about a first rotation axis;
A vertical movement mechanism capable of moving the head portion in the vertical direction,
Including,
The horizontal movement mechanism moves the rotation mechanism, the vertical movement mechanism, and the head portion,
The rotation mechanism rotates the vertical movement mechanism and the head portion,
The vertical movement mechanism moves the head portion ,
The head portion is rotatable about a second rotation axis orthogonal to the first rotation axis,
The second rotation axis is located at a position apart from the optical system along the optical axis of the optical system by a distance obtained by adding a standard distance between the apex of the cornea and the eyeball turning point to the working distance of the optical system. An ophthalmologic apparatus which can be arranged on a straight line orthogonal to the optical axis . The ophthalmic device of claim 1, wherein the second rotation axis in a state where the alignment is matched to the optical system with the eye is characterized in that it is arranged on the straight line. The optical system is
An optotype presenting section for presenting an optotype to the eye to be inspected,
An objective measurement unit for performing objective refraction measurement of the eye to be inspected,
The ophthalmic apparatus according to claim 1 or 2, further comprising: The head portion is
A left head part in which a left optical system for performing an examination of the left eye is stored,
A right head part in which a right optical system for performing an inspection of the right eye is stored,
Including,
The moving mechanism is
A first moving mechanism for moving the left head portion;
A second moving mechanism for moving the right head portion;
Including,
The first movement mechanism includes a horizontal movement mechanism capable of moving the left head portion in a horizontal direction, a rotation mechanism rotating the left head portion, and a vertical movement mechanism capable of moving the left head portion in a vertical direction. And, including,
The second movement mechanism includes a horizontal movement mechanism capable of moving the right head portion in a horizontal direction, a rotation mechanism rotating the right head portion, and a vertical movement mechanism capable of moving the right head portion in the vertical direction. The ophthalmologic apparatus according to any one of claims 1 to 3, further comprising:

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