JP2016202475A - Ophthalmologic apparatus and method for controlling ophthalmologic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ophthalmologic apparatus which quickly and appropriately performs a movement of an optometry part to a position intended by an examiner.SOLUTION: An ophthalmologic apparatus includes: an optometry part having imaging means for imaging a subject eye; manual alignment means for manually aligning the optometry part relative to the subject eye; automatic alignment means for automatically aligning the optometry part relative to the subject eye to keep the optometry part and the subject eye in a prescribed positional relationship; storage control means which stores information on the movement of the optometry part in performing the manual alignment from the prescribed positional relationship in storage means in association with the information on the subject eye; and control means for controlling the automatic alignment means in a manner that the optometry part is moved from the prescribed positional relationship based on the information on the movement in association with the information on the subject eye in imaging the subject eye at the next time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ophthalmologic apparatus and a control method thereof.

  In a conventional ophthalmologic apparatus exemplified by a fundus camera, a so-called auto that automatically aligns the main body and the eye to be examined while confirming the center position of the pupil of the eye to be examined and the reflected light of the index light projected onto the cornea with an image. Alignment is performed. However, with this auto-alignment technique, there may be cases where alignment cannot be performed well for diseased eyes with abnormal pupil or cornea shapes. If the subject's eye is a diseased eye such as a cataract and imaging cannot be performed well at the center of the pupil / cornea, the examiner may intentionally shift the center position of the pupil / cornea to perform imaging. In such cases, the examiner may respond by manually performing alignment.

  Patent Document 1 discloses an ophthalmologic apparatus having a moving table that moves manually with respect to an eye to be examined and an optometry unit that is movably mounted on the moving table and moves automatically. The ophthalmologic apparatus has such a manually controlled moving unit and an automatically controlled optometry unit, so that the apparatus can be aligned with the eye to be examined either automatically or manually. The ophthalmologic apparatus is capable of alignment by both automatic and manual control, and thus copes with an eye to be inspected that causes intense fixation micromotion that is difficult to track by automatic control. By using such an ophthalmologic apparatus, it is considered that appropriate imaging can be performed by appropriately performing manual alignment even for the eye to be examined in a state where automatic alignment is difficult.

JP 2009-201981

  However, when performing such manually controlled alignment, especially when performing alignment of diseased eyes, the suitability of alignment often depends on the skill of the examiner. In addition, when photographing is performed by intentionally shifting the center position of the cornea or the like, the amount and direction of the shift also depend on the examiner's intention. Considering the dependency of manual alignment on the examiner, automatic control is desirable. However, when alignment of diseased eyes or the like is difficult, even if manual and automatic alignment are properly used as disclosed in Patent Document 1, the intended alignment result cannot be obtained, or the time required for alignment May become longer.

  The present invention has been made with respect to the above-mentioned problems, and it is possible to quickly and suitably carry out the movement of the optometry unit to the position intended by the examiner, and to easily shoot the eye to be examined which is difficult to align. It is to provide an ophthalmologic apparatus that can be performed.

An ophthalmic apparatus for achieving the above object is as follows:
An optometry unit having imaging means for imaging the eye to be examined;
Manual alignment means for manually aligning the optometry unit with respect to the eye to be examined;
Automatic alignment means for automatically aligning the optometry part with respect to the eye to be examined and having the optometry part and the eye to be examined in a predetermined positional relationship;
Storage control means for storing information relating to movement of the optometry unit when the manual alignment is performed from the predetermined positional relationship in association with information relating to the eye to be examined;
The automatic alignment means is arranged so that when the eye to be examined is imaged next time, the optometry unit is moved from the predetermined positional relationship based on the information on the movement associated with the information on the eye to be examined. Control means for controlling;
It is characterized by having.

  According to the ophthalmologic apparatus using the present invention, the movement of the optometric part to the position intended by the examiner can be performed quickly and preferably, and the eye to be examined which is difficult to align can be easily photographed.

1 is an overall view of a fundus camera according to Embodiment 1 of the present invention. It is a perspective view of the alignment operation member which concerns on Example 1 of this invention. It is a figure which shows the structure of the optical system of the head part in the fundus camera shown in FIG. It is an electrical block diagram of the fundus camera shown in FIG. It is a schematic diagram explaining the principle of the alignment using the prism of the fundus camera shown in FIG. It is a schematic diagram explaining the alignment parameter | index and focus parameter | index of the fundus observation image of the fundus camera shown in FIG. It is a flowchart which shows operation | movement of the fundus camera which concerns on Example 1 of this invention. It is a flowchart which shows operation | movement of the fundus camera which concerns on Example 2 of this invention.

[Example 1]
Details of the fundus camera to which the embodiment of the present invention is applied will be described with reference to FIGS.

  FIG. 1A is an overall view of a fundus camera for explaining a first embodiment of the present invention.

  The fundus camera shown in FIG. 1 includes a fixed portion 1 having a chin receiving portion 2 that supports a subject's jaw, a movable portion 3, an alignment operation member 4, a focus operation member 5, an optometry portion 6, and a display portion 7. As the main configuration. The movable part 3 is movably supported by the fixed part 1. The alignment operation member 4, the focus operation member 5, and the optometry unit 6 are provided on the movable unit 3, and the display unit 7 is provided on the optometry unit 6. The optometry unit 6 is provided with various optical systems described later that are used to irradiate the eye E with observation light and the like, and to observe and image the eye E. The display unit 7 is a touch panel and can be used as an interface for operating and setting the fundus camera. In the present embodiment, the optometry unit 6 includes an imaging element 620 as imaging means to be described later for imaging the fundus of the eye E and a fixation lamp 627 for displaying a fixation target that fixes the direction of the line of sight of the eye to be examined. At least.

[XYZ movable part]
The movable part 3 is supported by the fixed part 1 through a known sliding mechanism represented by a combination of a sliding shaft and a linear bush. More specifically, on the fixed part 1, the movable part 3 includes a left and right (X) direction (a direction perpendicular to the paper surface that is the eye width direction of the eye E) and a front and rear (Z) direction (approaching the eye E). It is arranged so as to be movable in the direction of separation (left and right direction in the figure). In addition, the movable unit 3 can move the optometry unit 6 in the vertical (Y) direction (the vertical direction in the figure) with respect to the fixed unit 1 by a known drive mechanism. The drive mechanism includes, for example, a mechanism represented by a combination of a drive source (motor), a speed reduction mechanism, a rotation / linear motion conversion mechanism (feed screw and nut), and a sliding mechanism. As described above, by adopting the configuration via the movable part 3, the optometry part 6 can move in the three-dimensional (XYZ) direction, that is, the triaxial direction with respect to the fixed part 1, and can be aligned with the eye E to be examined. It becomes.

  Furthermore, the movable part 3 has a driving part capable of transmitting a driving force to the sliding mechanism in the (XZ) direction. The drive unit is provided with drive transmission switching means such as an electromagnetic clutch, and the switching of the drive transmission switching means can switch whether or not the driving force from the motor is transmitted to the sliding mechanism.

  The sliding mechanism is used as a manual movement mechanism for moving the movable part 3 in the horizontal direction in a state where the driving force from the driving part to the sliding mechanism is not transmitted by the drive transmission switching means. At that time, the examiner manually operates an alignment operation member 4 described later, which is typified by a joystick provided in the movable portion 3. On the other hand, the sliding mechanism is used as an electric movement mechanism in a state where the driving force is transmitted from the driving unit to the sliding mechanism by the drive transmission switching means. At that time, the movable portion 3 is moved in the horizontal direction by the driving force from the driving portion.

[Sliding mechanism]
Next, details of the (XZ) sliding mechanism, the Z drive unit, the X drive unit, and the Y drive mechanism will be described.

  1A and 1B, the sliding mechanism includes a rack gear 30, a gear 31, a shaft 32, and an XZ frame 33. Two rack gears 30 are provided at both ends of the fixed portion 1 in the X direction, and mesh with gears 31 attached to both ends of the shaft 32. The shaft 32 is attached to the XZ frame 33 via a linear bush and a bearing (not shown) so as to be slidable linearly.

  The XZ frame 33 receives a force in the (Z) direction by an operator's manual operation on the alignment operation member 4. By applying the force via a bearing (not shown), the shaft 32 rotates and slides with respect to the XZ frame 33. Thereby, the shaft 32 and the gear 31 roll on the rack gear 30, and the movable part 3 moves in the (Z) direction. Further, when the examiner manually operates the alignment operation member 4, the XZ frame 33 receives a force in the (X) direction. By applying the force via a linear bush (not shown), the XZ frame 33 slides linearly with respect to the shaft 32. Thereby, the movable part 3 moves in the (X) direction.

  In addition, the above Example demonstrates the case where a known sliding mechanism is used, such as a slit lamp. However, the present invention is not limited to this, and it is possible to use other various mechanisms as long as the sliding mechanism is movable in the horizontal direction.

[Z drive unit]
In FIG. 1B, the Z drive unit D1 includes a Z motor M1, an encoder E01, a Z drive amount detection sensor S01, a reduction mechanism (not shown), a Z electromagnetic clutch C1, a gear G1, an encoder E02, and a Z movement amount detection sensor S02. , Z reference detection sensor S03, and Z limit detection sensor S04. The encoder E01 rotates in synchronization with the Z motor M1. The Z drive amount detection sensor S01 detects the rotation of the encoder E01. The rotation of the Z motor M1 is transmitted to a gear G1 disposed on the operating side from the Z electromagnetic clutch C1 via a reduction mechanism (not shown) and the Z electromagnetic clutch C1. The encoder E02 is disposed on a shaft that transmits rotation to the gear G1, and the Z movement amount detection sensor S02 detects the movement amount in the (Z) direction of the movable portion 3 by the encoder E02.

  The Z reference detection sensor S03 detects that the movable part 3 is at the Z reference position, and is constituted by a photo interrupter / slit plate or the like. Similarly, the Z limit detection sensor S04 detects the Z auto limit position of the movable part 3, and is composed of a photo interrupter / slit plate or the like. In addition, the Z drive unit D1 is attached with a shaft 32 through a bearing (not shown) so as to be able to rotate and slide.

  The gear G1, which is the drive stage final gear, meshes with the gear G2 attached to the shaft 32, and the driving force from the Z motor M1 is transmitted to the sliding mechanism via these gears. When the Z motor M1 is driven, the shaft 32 rotates through a reduction mechanism (not shown), the Z electromagnetic clutch C1, the final gear G1, and the like. When the shaft 32 rotates, the gear 31 attached to the shaft 32 rolls while meshing with the rack gear 30 attached to the fixed portion 1. Thereby, the movable part 3 moves to the (Z) direction by electric drive. At this time, the Z drive unit D1 also moves in the (Z) direction together with the movable unit 3. In the present embodiment, the two rack gears 30 with the gear phases matched serve as a Z-direction linear guide.

[X drive unit]
The X drive unit D2 includes an X motor M2, an encoder E05, an X drive amount detection sensor S05, a reduction mechanism (not shown), an X electromagnetic clutch C2, a drive unit final gear 37, an encoder E06, an X movement amount detection sensor S06, and an X reference. It has a detection sensor S07 and an X limit detection sensor S08. The encoder E05 rotates in synchronization with the X motor M2. The X drive amount detection sensor S05 detects the rotation of the encoder E05. The rotation of the X motor M2 is transmitted to the drive unit final gear 37 disposed on the operating side from the X electromagnetic clutch C2 via a reduction mechanism (not shown) and the X electromagnetic clutch C2. The encoder E06 is arranged on a shaft rotating on the drive unit final stage gear 37, and the X movement amount detection sensor S06 detects the movement amount of the movable unit 3 in the (X) direction by the encoder E06.

  The X reference detection sensor S07 detects that the movable part 3 is at the X reference position, and includes a photo interrupter / slit plate or the like. The X limit detection sensor S08 is also for detecting the X auto limit position of the movable part 3 and is constituted by a photo interrupter / slit plate or the like. The X drive unit D2 is attached to the Z drive unit D1.

  The drive unit final stage gear 37 meshes with a rack gear 38 attached to the XZ frame 33, and transmits the driving force from the X motor M2 to the sliding mechanism via the rack gear 38. When the X motor M2 is driven, the drive unit final gear 37 is rotated via a reduction mechanism (not shown) and the X electromagnetic clutch C2. When the drive unit final stage gear 37 rolls while meshing with the rack gear 38 attached to the XZ frame 33, the movable unit 3 moves in the (X) direction by electric drive. At this time, the X drive unit D2 is integral with the Z drive unit D1, and does not move in the (X) direction. In the present embodiment, the shaft 32 serves as a linear guide.

  In this embodiment, an electromagnetic clutch is used as the drive transmission switching means. However, a mechanical clutch switching drive source may be provided separately from the Z motor M1 and the X motor M2, and a mechanical clutch such as a dog clutch may be used.

[Y drive mechanism]
The Y drive mechanism includes a Y motor M3 including a Y drive amount detection sensor S09 that can detect the drive amount of the motor. More specifically, as a further configuration, the Y frame 34 to which the Y motor M3 is attached, the Y feed screw 35 connected to the Y motor output shaft, and the Y feed screw 35 can be moved in the (Y) direction to the XZ frame 33. It has a fixed Y nut 36. Moreover, it has Y reference | standard detection sensor S10 which detects that the movable part 3 exists in Y reference | standard position, and Y limit detection sensor S11 which similarly detects the Y auto limit position of the movable part 3. FIG. The Y reference detection sensor S10 and the Y limit detection sensor S11 are configured by a photo interrupter / slit plate or the like.

  When the Y motor M3 is driven, the Y frame 34 is moved by electric drive in the (Y) direction with respect to the XZ frame 33 via the Y feed screw 35 and the Y nut 36.

[XZ position detection / position control]
Next, a detection method and position control of the reference position in the (XZ) direction and the auto limit position will be described.

  XZ position detection of the movable part 3 is performed using the sensors S01 to S08 described above.

  When the driving force is not transmitted from the drive unit to the sliding mechanism by the drive transmission switching unit, even if the movable unit 3 is moved in the horizontal direction by manual operation of the alignment operation member 4, the drive transmission switching unit is closer to the operating side. Only the gear rotates. Accordingly, since the motor shaft does not rotate, the drive amount detection sensors S01 / S05 cannot grasp the position of the movable portion 3. Therefore, when the eye E is not detected by the anterior ocular segment observation optical system described later, the arrangement of the reference detection sensors S03 / S07 is set as the reference position. Based on this reference position and the output of the movement amount detection sensor S02 / S06, a system control unit 100 (see FIG. 4) described later roughly controls the movable unit 3 in absolute position.

  On the other hand, when the eye E is detected, the absolute position of the movable part 3 when the eye E is detected is used as a reference. Based on the output of the drive amount detection sensor S01 / S05 with respect to this absolute position, the system control unit 100 controls the relative position of the movable unit 3 in detail. Therefore, the reference detection sensors S03 / S07 are preferably provided near the center of the movable range of the movable portion 3.

  Here, since the present embodiment has a speed reduction mechanism, the detection resolution of the movement amount detection sensors S02 / S06 is coarser than the detection resolution of the drive amount detection sensors S01 / S05.

  In the present embodiment, the movable limit at the time of electric driving is controlled by the system controller 100 based on the output of the movement amount detection sensor S02 / S06 with reference to the reference detection sensor S03 / S07. However, limit detection sensors S04 / S08 are also provided as countermeasures against misalignment caused by external factors or failures. As a result, the movable unit 3 does not move out of the limit detection sensor during electric drive, and when the movable unit 3 is out of the limit detection sensor before electric drive, the system control unit 100 moves to the inside of the movable range. The movement of the movable part 3 is controlled. On the other hand, the movable limit when the movable part is moved by the examiner's manual operation is set wider than the limit detection sensors S04 / S08. Therefore, an elastic body is preferably disposed at the mechanical contact point at the movable limit.

[Y position detection / position control]
Next, the detection method and position control of the reference position in the Y direction and the auto limit position will be described.

  The Y position of the movable part 3 is detected using the sensors S09 to S11 described above.

  In the present embodiment, the arrangement of the reference detection sensor S10 is used as a reference position, and the system control unit 100 controls the relative position of the movable unit 3 in detail based on the output of the drive amount detection sensor S09. Here, the reference detection sensor S10 may be provided near the center of the movable range of the movable portion 3.

  As for the movable limit, the system control unit 100 performs relative position control based on the output of the drive amount detection sensor S09 with reference to the arrangement of the reference detection sensor S10. However, in this embodiment, a limit detection sensor S11 is provided as a countermeasure against misalignment caused by an external factor or failure. Thereby, the movable part 3 does not move out of the limit detection sensor.

[Alignment operation member]
2 is a perspective view of an alignment operation member of the fundus camera shown in FIG.

  The alignment operation member 4 includes an operation rod 40 and a rotary dial 41 for operating the above-described sliding mechanism and drive mechanism, a Y alignment operation amount detection sensor S12 disposed inside the operation member, and an anterior eye / fundus changeover switch 42. And a photographing switch 43.

  The operating rod 40 moves the movable part 3 in the (XZ) direction, so that it is used as a holding member during coarse movement for roughly aligning the optometric part 6 with respect to the eye E, and the optometric part 6 is shown in detail. It is used as an operation member for performing a tilting operation during fine movement for alignment. When the examiner manually operates the operation rod 40, a not-illustrated inner ball provided coaxially under the operation rod 40 slides on a friction plate (not illustrated) attached to the fixed portion 1 and is movable. The part 3 can be coarsely moved in the horizontal direction. Further, when the examiner tilts the operation rod 40 in the (FB) direction and the (LR) direction in the figure, the unillustrated inner ball rolls without sliding on the unillustrated friction plate, The movable part 3 can be finely moved in the horizontal direction. By the manual operation of the operation rod 40 described above, the optometry unit 6 can be moved in the three-axis directions.

  As described above, the rotation dial 41 is used to perform a rotation operation for moving the optometry unit 6 in the (Y) direction. The rotary dial 41 is disposed coaxially with the operation rod 40, and the Y alignment operation amount detection sensor S12 is disposed therein. With this configuration, by rotating the rotary dial 41, an alignment operation amount in the (Y) direction is detected. More specifically, when the examiner rotates the rotary dial 41 in the (UD) direction, the rotation direction and the rotation angle per unit time are detected by the Y alignment operation amount detection sensor S12. The system control unit 100 drives the Y motor M3 according to the operation amount, and moves the optometry unit 6 in the (Y) direction. The imaging switch 43 is a switch that performs imaging when the examiner presses this switch. The anterior eye / fundus changeover switch 43 is a switch for switching an image sensor to be described later for displaying on the display unit 7 when the examiner presses the switch.

[Focus operation member]
The focus operation member 5 includes a focus dial disposed coaxially with the alignment operation member 4 and a focus operation amount detection sensor S13 disposed inside the focus dial.

  When the examiner rotates the focus dial, the focus operation amount detection sensor S13 detects the rotation direction and the rotation angle per unit time. The system control unit 100 drives a focus lens drive motor, which will be described later, in accordance with the operation amount, and moves a focus lens, which will be described later.

[Optical system]
FIG. 3 is a diagram showing the configuration of the optical system of the optometry unit 6 in the fundus camera shown in FIG.

  The optical system of the optometry unit 6 includes an imaging light source unit O1, an observation light source unit O2, an illumination optical system O3, an imaging / illumination optical system O4, an imaging optical system O5, an anterior ocular segment observation optical system O6, and an internal fixation lamp unit O7. Have The light beam emitted by the imaging light source unit O1 or the observation light source unit O2 illuminates the eye E through the illumination optical system O3 and the imaging / illumination optical system O4. A part of the illuminated image of the eye E is imaged on the image sensor through the imaging / illumination optical system O4 and the imaging optical system O5, and part of the image is imaged on the image sensor via the anterior eye observation system O6.

  The imaging light source unit O1 includes a light amount detection unit 601, a mirror 602, an imaging light source 603, an imaging condenser lens 604, an imaging ring slit 605, and an imaging lens baffle 606, which are sequentially arranged from the back of the optical path. The light quantity detection means 601 is a sensor using photoelectric conversion such as a photodiode (PD). The mirror 602 is made of a glass plate obtained by depositing aluminum or silver, an aluminum plate, or the like, and transmits light near the optical axis and reflects light other than near the optical axis. The imaging light source 603 emits light by enclosing Xe in a glass tube and applying a voltage, and can obtain white light with sufficient intensity to record a fundus image during imaging.

  The photographing condenser lens 604 is a general spherical lens. The photographing ring slit 605 is a flat plate having an annular opening. The photographing lens baffle 606 is also a flat plate having an annular opening. In this embodiment, a part of the light beam emitted from the photographing light source 603 is a light beam directed toward the fundus direction, and the light beam emitted toward the opposite side is reflected by the mirror 602 and becomes a light beam directed toward the fundus direction. For this reason, the amount of light emitted from the photographing light source 603 is smaller than that of the light source without the mirror 602. The mirror 602 has a flat surface and does not cause unevenness of light, and there is no distance restriction on the photographing light source 603. The luminous flux is further condensed toward the fundus by the photographing condenser lens 604, and shaped so that the luminous flux shape when passing through the anterior segment is annular by the photographing ring slit 605. The light beam after molding is further limited by the photographing lens baffle 606 to be projected onto the eye lens of the eye to be examined, and reflection of light reflected from the lens onto the fundus image is prevented.

  The observation light source unit O2 includes an observation light source 607, an observation condenser lens 608, an observation ring slit 609, and an observation lens baffle 610, which are sequentially arranged from the back side of the optical path. The observation light source 607 is a light source that can emit light continuously, such as an LED, and emits infrared light by the characteristics of the element or an optical filter. The observation condenser lens 608 is a general spherical lens. The observation ring slit 609 is a flat plate having an annular opening. The observation lens baffle 610 is also a flat plate having an annular opening. The observation light source unit O2 is different from the imaging light source unit O1 only in the type of light source, and is condensed by the observation condenser lens 608 and shaped in a ring shape when passing through the anterior segment by the observation ring slit 609. The molded light beam is further limited by the observation lens baffle 610 to be projected onto the eye lens to be examined, thereby preventing the reflected light from the lens from being reflected on the fundus image.

  The illumination optical system O3 relays the light beam produced by the imaging light source unit O1 and the observation light source O2, and creates an index image for focusing the fundus image. The illumination optical system O3 includes a dichroic mirror 611, a first illumination relay lens 612, a prism unit 613, a second illumination relay lens 614, and a corneal baffle 615 in this order from the light source side. The dichroic mirror 611 transmits infrared light and reflects visible light. The visible light beam produced by the imaging light source unit O1 is reflected, and the infrared light beam produced by the observation light source unit O2 is transmitted and guided to the illumination optical system O3. The ring-shaped illumination light is focused on the eye E by the first illumination relay lens 612 and the second illumination relay lens 614.

  The split unit 613 includes a focus index light source 613a, a prism 613b, a focus index mask 613c, an advance / retreat mechanism described later, and a unit moving mechanism described later. The focus index light source 613a is used to project the focus index, and the prism 613b is used to divide the light source. The focus index mask 613c is used to form the outline of the focus index.

  The advance / retreat mechanism has a split advance / retreat drive motor M4. The split advance / retreat drive motor M4 advances the split unit 613 into the illumination optical system O3 during fundus observation. Thereby, it is possible to project the split index in the observation image. The split advance / retreat drive motor M4 is also used when the split unit 613 is retracted from the illumination optical system O3 during photographing. Thereby, it can control so that a focus parameter | index does not move in a picked-up image.

  The unit moving mechanism includes a split shift drive motor M5 and a split position sensor S14. The split shift drive motor M5 is used to focus the focus index during fundus observation by shifting the focus index light source 613a, the prism 613b, and the focus index mask 613c in the optical axis direction (arrow direction in the figure). The split position sensor S14 detects the stop position.

  The corneal baffle 615 prevents reflection of reflected light from the cornea of the eye E to be examined that is unnecessary for the fundus image.

  The imaging / observation optical system O4 projects an illumination light beam onto the eye E and derives a reflected light beam reflected from the eye E. In the photographing / observation optical system O4, an objective lens 617, a half mirror 622, and a perforated mirror 616 are arranged from the front of the eye E to be examined. The perforated mirror 616 has a mirror at the outer periphery and a hole at the center. The light beam guided from the illumination optical system O3 is reflected by the mirror part, passes through the half mirror 622, and illuminates the eye E through the objective lens 617. A part of the reflected light beam from the illuminated eye E returns through the objective lens 617, passes through the half mirror 622 again, and is led to the photographing optical system O5 through the hole at the center of the perforated mirror 616.

  The photographing optical system O5 focuses the eye fundus image of the eye E and forms an image on the image sensor. In the photographing optical system O <b> 5, a diopter correction lens 618, a focus lens 619, a half mirror 626, and an image sensor 620 are arranged in order from the perforated mirror 616. The diopter correction lens 618 includes a convex lens and a concave lens that are installed in the photographing optical system O5 so as to be able to advance and retract. The diopter correction lens 618 is used for focusing on the fundus of the eye E to be inspected with myopia or hyperopia that is difficult to adjust with a focus lens 619 for focus adjustment described later. More specifically, the diopter correction lens advancing / retracting drive motor M6 is used to shoot the diopter correction-lens 618b when the patient has high myopia, and the diopter correction + lens 618a when the patient is high hyperopia Advance and retreat with respect to system O5.

  The focus lens 619 is a lens for adjusting the focus of the photographing light beam that has passed through the center hole of the perforated mirror 616, and performs focus adjustment by moving in the arrow direction in the figure. The focus lens drive motor M7 and the focus lens 619 are driven in the direction of the arrow in the drawing along the optical axis of the photographing optical system O5 to adjust the focus. The focus lens position sensor S15 detects a stop position on the optical axis of the driven focus lens 619. The image sensor 620 photoelectrically converts the photographic light. The electric signal obtained by the image sensor 620 is A / D converted by the image processing unit 621 to be converted into digital data, and an image obtained from the data is displayed on the display unit 7 during infrared observation, and is not obtained after the photographing. It is recorded on the illustrated recording medium.

  The anterior ocular segment observation optical system O6 is disposed in an optical path divided from the photographing / observation optical system O4 by a half mirror 622, and an anterior eye prism 623, a lens 624, and an anterior eye imaging element 625 are disposed in this order from the half mirror 622. Is done. A part of the reflected light from the anterior segment of the eye E is reflected by the half mirror 622, passes through the anterior prism 623, and forms an image on the anterior imaging element 625 having sensitivity in the infrared region by the lens 624. Is done. By these optical systems, the anterior segment of the eye E to be examined is observed, and the alignment state between the eye E and the optometry unit 6 can be detected.

  The internal fixation lamp unit O7 is disposed in an optical path divided from the photographing optical system O5 by the half mirror 626, and the internal fixation lamp unit 627 is opposed to the optical path. The internal fixation lamp unit 627 is composed of a plurality of LEDs, and lights the LEDs at positions corresponding to the fixation unit selected by the examiner. The examiner can obtain a fundus image in a desired direction by staring at the lighted LED of the subject. That is, the fixation lamp 627 can arbitrarily move the display position of the fixation target.

[Control system]
FIG. 4 is an electrical block diagram of the fundus camera shown in FIG.

  In the fundus camera shown in FIG. 1, all the following operations are controlled by the system control unit 100. The system control unit 100 is connected to the various sensors S01 to S15, the various switches 42, 43, 101, the image sensor 625, and the like, and various signals are input through these sensors.

  The power switch 101 is a switch for selecting the power state of the fundus camera. The system control unit 100 is connected to the electromagnetic clutches C1 and C2, the motors M1 to M7, the light sources, the image processing unit 621, and the display unit 7 through a drive circuit and the like as necessary. Operation instructions are output for these.

  In the manual alignment mode, the XZ clutch drive circuit 102 stops energization to the Z electromagnetic clutch C1 and the X electromagnetic clutch C2, and switches so that the driving force of the Z motor M1 and the X motor M2 is not transmitted to the sliding mechanism. On the other hand, in the auto alignment mode, the Z electromagnetic clutch C1 and the X electromagnetic clutch C2 are energized, and the driving force of the Z motor M1 and the X motor M2 is switched to be transmitted to the sliding mechanism.

  The XZ motor drive circuit 103 drives the Z motor M1 and the X motor M2 in accordance with outputs of various XZ sensors S01 to S08 and an output of the system control unit 100 with respect to an alignment state described later in a semi-auto mode and a full auto mode described later. . In the full manual mode described later, the Y motor drive circuit 104 drives the Y motor M3 according to the outputs of the various Y sensors S09 to S11 and the output of the Y alignment operation amount detection sensor S12. On the other hand, in a semi-auto mode and a full auto mode, which will be described later, the Y motor M3 is driven according to the outputs of the Y sensors S09 to S11 and the output of the system control unit 100 for the alignment state described later.

  The M4 drive circuit 105 drives the split advance / retreat drive motor M4 so that the split unit 613 is retracted from the illumination optical system O3 when the photographing switch 43 is pressed by the examiner manual operation in the full manual mode or the semi-auto mode to be described later. To do. Further, in the full auto mode described later, when the shooting conditions are all satisfied and automatic shooting (auto shot) is performed, the split advance / retreat drive motor M4 is driven so that the split unit 613 is retracted from the illumination optical system O3. The M5 drive circuit 106 drives the split shift drive motor M5 according to the outputs of the focus sensors S13 to S15 in the full manual mode described later. Further, in the semi-auto mode or full-auto mode to be described later, the split shift drive motor M5 is driven according to the outputs of the various focus sensors S14 to S15 and the output of the system control unit 100 for the focus state to be described later.

  The M6 drive circuit 107 drives the diopter correction lens advance / retreat drive motor M6 according to the outputs of the various focus sensors S13 to S15 in the full manual mode described later. Further, in a semi-auto mode or a full auto mode, which will be described later, the diopter correction lens advance / retreat drive motor M6 is driven according to the outputs of the focus sensors S14 to S15 and the output of the system control unit 100 for the focus state, which will be described later. The M7 drive circuit 108 drives the focus lens drive motor M7 in accordance with the outputs of the various focus sensors S13 to S15 in the full manual mode described later. Further, in a semi-auto mode or a full-auto mode, which will be described later, the focus lens drive motor M7 is driven in accordance with outputs from various focus sensors S14 to S15 and an output from the system control unit 100 for a focus state described later.

  The imaging light source control circuit 109 charges the energy for emitting the imaging light source 603 before imaging, and discharges the electrical energy charged during imaging to cause the imaging light source 603 to emit light.

[Alignment Principle / Indicator]
FIG. 5 is a schematic diagram for explaining the principle of alignment using the prism of the fundus camera shown in FIG.

  FIG. 5 shows an observation image on the image sensor 625 of the anterior ocular segment observation optical system O6 described in FIG. The anterior segment of the eye E is divided vertically by the anterior prism 623 and is observed on the anterior imaging element 625 as shown in FIG. The front-rear alignment with respect to the eye E is performed according to the following principle. The light incident on the anterior eye prism 623 is refracted and separated in the left and right directions which are opposite to each other in the upper half and the lower half. For this reason, when the image formation position by the lens 624 is longer than the predetermined working distance, the upper half of the observed image is shifted to the right and the lower half is shifted to the left. Imaged. On the other hand, when the distance between the eye E to be examined and the optometry unit 6 is shorter than the predetermined working distance, the upper half of the observation image is shifted to the left and the lower half is shifted to the right. Therefore, the front-rear direction of the observation image can be aligned depending on the shift direction of the observation image.

  Further, the vertical and horizontal alignment with respect to the eye E is performed according to the following principle. The part other than the pupil appears white because a lot of reflected light is reflected, and the pupil P appears black because no reflected light enters. Therefore, the pupil part P can be extracted from this contrast difference, and the pupil position can be determined. In FIG. 5A, the pupil center P0 is detected from the lower pupil part P among the pupil parts P divided vertically. As shown in FIG. 5B, the eye E and the optometry unit 6 are aligned by aligning the pupil center P0 with the image center O of the anterior imaging element 625. In the full manual mode, which will be described later, which is a manual alignment mode, in the anterior eye manual alignment, the examiner manually operates the alignment operation member 4 and performs the above-described alignment. On the other hand, in the full auto mode and the semi-auto mode, which will be described later, which are auto alignment modes, the system control unit 100 automatically performs the alignment. That is, the automatic operation of the configuration for each position control by the system control unit 100 is executed.

  FIG. 6 is a schematic diagram for explaining the alignment index and the focus index of the fundus observation image of the fundus camera shown in FIG. The focus index will be described later.

  6A and 6B show fundus observation images on the image sensor 620, respectively. The alignment index P1 and the alignment index P2 are two digital alignment indexes shifted symmetrically from the photographing optical axis. Guide frame A1 and guide frame A2 indicate alignment positions of alignment index P1 and alignment index P2, respectively. Of the full manual mode to be described later, which is a manual alignment mode, fundus manual alignment is performed by the operator manually operating the alignment operation member 4 and aligning the alignment indices P1 / P2 with the guide frames A1 / A2, respectively. The eye center P0 of the eye E detected in step S3 and the image center O of the image sensor 625 are combined, and the alignment between the eye E and the optometry unit 6 is completed.

  The above-described configuration for manually aligning the optometry unit 6 with respect to the eye E constitutes the manual alignment means in the present embodiment, and the configuration for automatically aligning the automatic alignment means in the present embodiment. Configure.

[Focus Principle / Indicator]
The split index 613L and the split index 613R are indices projected by the split unit 613 and divided on the pupil of the eye E to be examined. The split unit 613 and the focus lens 619 move in conjunction with each other based on control from the system control unit 100. The image sensor 620 is optically substantially conjugate with the focus index mask 613c. Therefore, when the split unit 613 is shifted in the optical axis direction, the split indicators 613L and 613R move in the fundus observation image on the image sensor 620. At the same time, the focus lens 619 moves in conjunction with the optical axis direction. That is, the split indices 613L and 613R are changed from the state of FIG. 6A on the image sensor 620 to the state of FIG. In the full manual mode, which will be described later, the examiner manually operates the focus operation member 5 and performs the above-described index alignment. On the other hand, in the full auto mode and the semi-auto mode, which will be described later, in which auto focus is performed, the system control unit 100 automatically performs the index matching.

[flowchart]
FIG. 7 is a flowchart for photographing a fundus camera for explaining the first embodiment of the present invention. Hereinafter, the photographing sequence of the fundus camera in the first embodiment will be described.
(S101) Shooting is started.
(S102) A voltage is applied to the X electromagnetic clutch C2 and the Z electromagnetic clutch C1, and the movable part 3 is switched to electric drive.
(S103) It is determined whether or not there is data taken in the past from the subject information.
As a result of the determination, if there is data shot in the past, the flow proceeds to (S114).
As a result of the determination, if there is no data photographed in the past, the flow proceeds to (S104).
(S104) The movable unit 3 is moved until the center of the image sensor 620 matches the center of the pupil.
(S105) The system controls the movement direction and the movement amount output by the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the Z movement amount detection sensor S02 when the center of the image sensor 620 and the center of the pupil coincide with each other. Store in the unit 100.
(S106) The internal fixation lamp 627 is turned on.
(S107) The voltage application of the X electromagnetic clutch C2 and the Z electromagnetic clutch C1 is stopped, and the movable part 3 is switched to manual driving.
(S108) It is determined whether a lighting position changeover switch of an internal fixation lamp (not shown) prepared on the touch panel has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S109).
If it is determined that the button is not pressed, the flow proceeds to (S110).
(S109) The lighting position of the internal fixation lamp 627 is moved.
(S110) It is determined whether or not the photographing switch 43 has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S111).
If it is determined that the button is not pressed, the flow proceeds to (S108).
At this time, the examiner can perform manual alignment until the photographing switch 43 is pressed.
(S111) The amount of movement of the movable part 3 from the center of the pupil until the photographing switch 43 is pushed in the manually performed alignment is obtained and stored. Specifically, the system control unit 100 calculates and stores the moving direction and the moving amount of the movable portion 3 from the output values of the X moving amount detection sensor S06, the Y driving amount detection sensor S09, and the Z movement amount detection sensor S02. Further, the lighting position of the internal fixation lamp 627 is stored in the system control unit 100.
(S112) The acquired image of the image sensor 620 is recorded.
(S113) Shooting is terminated.
(S114) The movable part 3 is moved until the center of the image sensor 620 and the center of the pupil coincide.
(S115) The system controls the movement direction and the movement amount output by the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the Z movement amount detection sensor S02 when the center of the image sensor 620 and the center of the pupil coincide. Store in the unit 100.
(S116) The lighting position of the internal fixation lamp 627 in the past photographing data is read from the system control unit 100.
(S117) The internal fixation lamp 627 at the position of the past photographing data is turned on.
(S118) The movement direction and movement amount from the pupil center of the past imaging data are read from the system control unit 100.
(S119) The movable part 3 is moved from the pupil center of the past photographing data by the amount of movement in the moving direction of the past photographing data.
(S120) The voltage application of the X electromagnetic clutch C2 and the Z electromagnetic clutch C1 is stopped, and the movable part 3 is switched to manual driving.
(S121) It is determined whether or not a lighting position changeover switch of an internal fixation lamp (not shown) prepared on the touch panel has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S122).
If it is determined that the button is not pressed, the flow proceeds to (S123).
(S122) The lighting position of the internal fixation lamp 627 is moved.
(S123) It is determined whether or not the photographing switch 43 has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S124).
If it is determined that the button is not pressed, the flow proceeds to (S121).
At this time, the examiner can perform manual alignment until the photographing switch 43 is pressed.
(S124) The movement amount of the movable part 3 from the center of the pupil until the photographing switch 43 is pressed in the manually performed alignment is obtained and stored. Specifically, the system control unit 100 calculates and stores the movement direction and the movement amount from the output values of the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the Z movement amount detection sensor S02. The lighting position of the lamp 627 is stored in the system control unit 100.
(S125) The acquired image of the image sensor 620 is recorded.
(S126) The photographing is finished.

  With the fundus camera configured as described above, the examiner intentionally uses the pupil when there is an abnormality in the pupil of the eye to be examined and auto-alignment is not possible, or when suitable fundus photographing cannot be performed at the center of the pupil due to cataracts or the like. Anyone will be able to reproduce the photo taken off the center. That is, when imaging the eye to be examined next time, the pessimistic eye and the optometry unit 6 are in a predetermined positional relationship by automatic alignment, and the optometry unit 6 by manual alignment at the previous imaging is performed. The drive is reproduced, and it becomes possible to avoid alignment mismatch by the examiner.

In the present embodiment, the movement direction and the movement amount are stored in the system control unit 100, but may be stored in the external device as subject information. That is, in this embodiment, the information relating to the movement of the optometry unit 6 when manual alignment is performed from the alignment completion position when the automatic alignment means performs alignment is stored in the storage means in association with the information relating to the eye E to be examined. Storage control means. When the optometry unit 6 is at the position where automatic alignment is completed, the eye E and the optometry unit 6 are in a predetermined positional relationship. The storage control means is composed of modules included in the system control unit 100. The storage control means includes information such as the amount of movement, direction, and the like regarding the movement of the optometry unit 6 from this predetermined positional relationship made by manual alignment, such as the image of the eye E, patient information, imaging conditions, and imaging date and time. The information is stored in the storage means in association with the information. In other words, the storage means stores at least the image of the fundus of the eye to be examined and the conditions for taking the image as information about the eye to be examined.
In addition, as described above, when an image of the fundus of the eye to be examined whose information on movement is stored in the storage means is to be taken again, the automatic alignment means has the optometry portion in a predetermined positional relationship with the eye E to be examined. The optometric unit is moved from the position to a further movement position based on the information related to the movement. Such an automatic alignment operation is instructed and controlled by a module functioning as a control means in the system control unit 100.

  In the present embodiment, the information stored in the storage means is the amount and direction of movement of the optometry unit 6, but the data that is actually stored may be information relating to movement that can be discriminated. Further, regarding the display position of the fixation target, any information regarding the display position that can specify the display position may be used. The fixation target moves the display position based on the information.

[Example 2]
Second Embodiment A fundus camera to which the present invention is applied will be described.

  Since the configuration of the fundus camera according to the second embodiment of the present invention is the same as the configuration described in the first embodiment, the description thereof is omitted here.

[Shooting position warning]
In the fundus camera according to the second embodiment of the present invention, a warning is displayed when the movable part 3 comes to the photographing position when the first photographing fails. This warning position detection method will be described below.

  First, the movement amount of the movable unit 3 from the pupil center at the first imaging is stored in the system control unit 100. Next, when the first photographing fails and the re-photographing mode is entered, the camera automatically moves to the center of the pupil again and then shifts to manual driving. At this time, manual driving is performed while measuring the amount of movement from the center of the pupil, and the system control unit 100 compares the position with the position of the movable unit 3 at the first imaging. Thus, a warning can be displayed when the movable part 3 enters a position equivalent to the amount of movement from the pupil at the time of the first photographing.

  In other words, in this embodiment, the system control unit 100 includes a module that functions as a re-imaging execution determination unit that determines whether or not to re-photograph the eye E with the image sensor 620. And when the information regarding the movement from the alignment completion position in an automatic alignment means to the completion position of the manual alignment by the said manual alignment means was memorize | stored, it has an alerting means to alert | report when this is substantially the same as the case of re-photographing. I am going to do that. For example, the notification unit is preferably configured to display a specific display form on the display unit 7, and this notification is preferably executed when the re-imaging execution determination unit determines to re-photograph the eye to be examined. .

[flowchart]
FIG. 8 is a flowchart at the time of photographing with a fundus camera, illustrating Embodiment 2 of the present invention. Hereinafter, the photographing sequence of the fundus camera in the second embodiment will be described.
(S201) Shooting is started.
(S202) A voltage is applied to the X electromagnetic clutch C2 and the Z electromagnetic clutch C1, and the movable part 3 is switched to electric drive.
(S203) The movable part 3 is moved until the center of the image sensor 620 and the center of the pupil coincide.
(S204) The voltage application of the X electromagnetic clutch C2 and the Z electromagnetic clutch C1 is stopped, and the movable part 3 is switched to manual driving.
(S205) The internal fixation lamp 627 is turned on.
(S206) It is determined whether a lighting position changeover switch of an internal fixation lamp (not shown) prepared on the touch panel has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S207).
If it is determined that the button is not pressed, the flow proceeds to (S208).
(S207) The lighting position of the internal fixation lamp 627 is moved.
(S208) It is determined whether the photographing switch has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S209).
If it is determined that the button is not pressed, the flow proceeds to (207).
At this time, the examiner can perform manual alignment until the photographing switch 43 is pressed.
(S209) The acquired image of the image sensor 620 is recorded.
(S210) The movement amount of the movable part 3 from the center of the pupil until the photographing switch 43 is pressed in the manually performed alignment is calculated and stored. Specifically, the system control unit 100 calculates and stores the movement direction and the movement amount from the output values of the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the Z movement amount detection sensor S02, and further, the internal fixation lamp The lighting position of 627 is stored in the system control unit 100.
(S211) It is determined whether a photographing end switch (not shown) prepared on the touch panel has been pressed or whether the left and right eyes have been switched (the movable unit 3 has exceeded the center position in the X direction).
If it is determined that any one of the conditions is satisfied, the flow proceeds to (S213).
If it is determined that none of the conditions is satisfied, the flow proceeds to (S212).
(S212) It is determined whether a re-photographing switch (not shown) prepared on the touch panel has been pressed.
(S213) Shooting is terminated.
(S214) A voltage is applied to the X electromagnetic clutch C2 and the Z electromagnetic clutch C1, and the movable part 3 is switched to electric drive.
(S215) The movable part 3 is moved to the center of the image sensor 620 and the center of the pupil.
(S216) The voltage application of the X electromagnetic clutch C2 and the Z electromagnetic clutch C1 is stopped, and the movable part 3 is switched to manual driving.
(S217) Whether the output values of the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the movement amount detection sensor S02 are in the vicinity of the output values of the respective sensors of the movable part 3 from the pupil center at the time of the previous photographing. Determine whether.
If it is determined that it is in the vicinity, the flow proceeds to (S218).
If it is determined that it is not near, the flow proceeds to (S219).
(S218) A warning to the position of the movable unit 3 is displayed on the display unit 7.
(S219) The display of the warning to the position of the movable part 3 is stopped.
(S220) It is determined whether or not a lighting position changeover switch of an internal fixation lamp (not shown) prepared on the touch panel has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S221).
If it is determined that the button is not pressed, the flow proceeds to (S222).
(S221) The lighting position of the internal fixation lamp 627 is moved.
(S222) It is determined whether or not the lighting position of the internal fixation lamp 627 is the same as in the previous shooting.
If it is determined that they are the same, the flow proceeds to (S224).
If it is determined that they are not the same, the flow proceeds to (S223).
(S223) A warning to the position of the movable unit 3 is displayed on the display unit 7.
(S224) It is determined whether or not the photographing switch 43 has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S225).
If it is determined that the button has not been pressed, the flow proceeds to (S217).
(S225) The acquired image of the image sensor 620 is recorded.
(S226) The movement amount of the movable part 3 from the center of the pupil until the photographing switch 43 is pressed is determined based on the movement direction and movement from the output values of the X movement amount detection sensor S06, the Y drive amount detection sensor S09, and the Z movement amount detection sensor S02. The amount is calculated and stored by the system control unit 100. Further, the lighting position of the internal fixation lamp 627 is also stored in the system control unit 100.
(S227) It is determined whether a shooting end switch (not shown) prepared on the touch panel has been pressed or whether the left and right eyes have been switched (the movable unit 3 has exceeded the center position in the X direction).
If it is determined that any one of the conditions is satisfied, the flow proceeds to (S229).
If it is determined that neither condition is satisfied, the flow moves to (S228).
(S228) It is determined whether or not a re-photographing switch (not shown) prepared on the touch panel has been pressed.
If it is determined that the button has been pressed, the flow proceeds to (S214).
If it is determined that the button has not been pressed, the flow proceeds to (S227).
(S229) Shooting is terminated.

  With the fundus camera configured as described above, even if the alignment fails during the first image capture and the image capture fails, a warning is displayed during re-photographing, making it easier to obtain a more suitable image. Become.

  In the present embodiment, the movement direction and the movement amount are stored in the system control unit 100, but may be stored in the external device as subject information.

  As described above, the ophthalmologic apparatus according to the present invention uses position information at the first manual alignment. As a result, when alignment is successful, re-photographing at the same position is possible for the next and subsequent shootings. Therefore, suitable imaging that does not depend on the skill of the examiner can be performed even for a diseased eye, which has been a problem during conventional alignment.

(Other examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.
Moreover, although the case where the present invention is used for a fundus camera is described in the above-described embodiments, the ophthalmologic apparatus to which the present invention is applied is not limited to this. For example, the present invention can also be used in various ophthalmologic apparatuses such as an OCT (optical coherence tomographic imaging) apparatus, an SLO (confocal laser optometry) apparatus, or an AO-SLO (compensated optical laser optometry) apparatus.

E: eye to be examined 1: fixed part 3: movable part 4: alignment operation member 6: optometry part 100: system control part 102: XZ clutch drive circuit 103: XZ motor drive circuit D1: Z drive part D2: X drive part M1 : Z motor M2: X motor C1: Z electromagnetic clutch C2: X electromagnetic clutch S01: Z drive amount detection sensor S02: Z movement amount detection sensor S03: Z reference detection sensor S04: Z limit detection sensor S05: X drive amount detection sensor S06: X movement amount detection sensor S07: X reference detection sensor S08: X limit detection sensor

Claims (19)

An optometry unit having imaging means for imaging the eye to be examined;
Manual alignment means for manually aligning the optometry unit with respect to the eye to be examined;
Automatic alignment means for automatically aligning the optometry part with respect to the eye to be examined and having the optometry part and the eye to be examined in a predetermined positional relationship;
Storage control means for storing information relating to movement of the optometry unit when the manual alignment is performed from the predetermined positional relationship in association with information relating to the eye to be examined;
The automatic alignment means is arranged so that when the eye to be examined is imaged next time, the optometry unit is moved from the predetermined positional relationship based on the information on the movement associated with the information on the eye to be examined. Control means for controlling;
An ophthalmologic apparatus comprising:   The said manual alignment means has an operation member which an examiner operates manually, and a manual movement mechanism which moves the said optometry part to a triaxial direction according to operation of the said operation member. Ophthalmic equipment. The automatic alignment means supports the optometry unit and is movable in three axial directions, a drive mechanism for driving the movable unit, and whether or not to transmit a driving force from a drive source to the drive mechanism. Drive transmission switching means capable of switching between,
The ophthalmologic apparatus according to claim 1, wherein the driving mechanism is operated so that the optometry unit and the eye to be examined are in the predetermined positional relationship based on the image of the eye to be examined. The optometry unit has a fixation target that determines the line-of-sight direction of the eye to be examined;
The control means is capable of moving the display position of the fixation target;
The ophthalmology according to any one of claims 1 to 3, wherein the storage control unit stores information on the display position of the fixation target in the storage unit in association with information on the eye to be examined. apparatus.   When capturing an image of the eye to be examined in which information on the display position of the fixation target of the eye to be examined is stored, the control means determines the display position of the fixation target during alignment by the automatic alignment means. The ophthalmologic apparatus according to claim 4, wherein the display position of the fixation target stored by the storage unit is used.   It has a notifying means for notifying when the information on the movement from the predetermined positional relationship to the manual alignment completion position by the manual alignment means is the same as the information on the movement stored in the storage means. The ophthalmologic apparatus according to any one of claims 1 to 5. Re-imaging execution determination means for determining whether to re-photograph the eye to be examined by the imaging means;
The ophthalmologic apparatus according to claim 6, wherein the notification unit executes the notification when the re-imaging execution determination unit determines to re-image the eye to be examined. An optometry unit having imaging means for imaging the eye to be examined;
A drive unit for driving a movable unit capable of moving the optometry unit;
Storage control means for storing information relating to movement of the optometry part when the optometry part is manually aligned with respect to the eye to be examined in association with information relating to the eye to be examined;
Control means for controlling the drive unit based on information relating to the movement associated with information relating to the eye when the eye is imaged next time;
An ophthalmologic apparatus comprising: An optometry unit having imaging means for imaging the eye to be examined;
A moving mechanism for aligning the optometry unit with respect to the eye to be examined;
Storage control means for associating and storing in a storage means information relating to movement of the movement mechanism when alignment is performed by manually operating the movement mechanism; and information relating to the eye to be examined;
Control means for automatically operating the moving mechanism so that the eye examination unit is moved based on the information relating to the movement associated with the information relating to the eye to be examined when the eye to be examined is imaged next time;
An ophthalmologic apparatus comprising: The information relating to the movement is information relating to movement when the alignment is performed by manually operating the movement mechanism after the movement mechanism is automatically operated to bring the optometry unit and the eye to be examined into a predetermined positional relationship. Yes,
The ophthalmologic apparatus according to claim 9, wherein the optometry unit is moved from the predetermined positional relationship based on the information related to the movement. In a method for controlling an ophthalmologic apparatus having an optometry unit having an imaging means for imaging an eye to be examined
Aligning the optometry part with the eye to be examined by manual alignment means;
Aligning the optometry part with the eye to be examined by an automatic alignment means to bring the optometry part and the eye to be examined into a predetermined positional relationship;
Storing information on movement of the optometry unit when the manual alignment is performed from the predetermined positional relationship in a storage unit in association with information on the eye to be examined;
The automatic alignment means is arranged so that when the eye to be examined is imaged next time, the optometry unit is moved from the predetermined positional relationship based on the information on the movement associated with the information on the eye to be examined. A step of controlling by the control means;
A method for controlling an ophthalmic apparatus, comprising: The optometry unit has a fixation target that determines the line-of-sight direction of the eye to be examined;
The control means is capable of moving the display position of the fixation target;
The method for controlling an ophthalmologic apparatus according to claim 11, further comprising a step of storing information on a display position of the fixation target in the storage unit in association with information on the eye to be examined.   When capturing an image of the eye to be examined in which information on the display position of the fixation target of the eye to be examined is stored, the control means determines the display position of the fixation target during alignment by the automatic alignment means. The method for controlling an ophthalmologic apparatus according to claim 12, further comprising a step of setting the position of the fixation target stored in the storage unit.   The information processing apparatus includes a step of notifying, when the information related to the movement from the predetermined positional relationship to the manual alignment completion position by the manual alignment means is the same as the information related to the movement stored in the storage means. Item 14. The method for controlling an ophthalmologic apparatus according to any one of Items 11 to 13. Determining whether to re-photograph the eye to be examined by the imaging means;
The method of controlling an ophthalmologic apparatus according to claim 14, wherein the notification step is executed when it is determined that the eye to be examined is re-photographed.
An optometry unit having imaging means for imaging the eye to be examined;
In a method for controlling an ophthalmologic apparatus, comprising: a drive unit that drives a movable unit that can move the optometry unit;
Storing in the storage means information relating to movement of the optometry part when the optometry part is manually aligned with respect to the eye to be examined, in association with information relating to the eye to be examined;
When the eye to be examined is imaged next time, controlling the drive unit based on the information on the movement associated with the information on the eye to be examined;
A method for controlling an ophthalmic apparatus, comprising: An optometry unit having imaging means for imaging the eye to be examined;
In a method for controlling an ophthalmologic apparatus, including a movement mechanism for aligning the optometry unit with respect to the eye to be examined.
Storing the information relating to the movement of the movement mechanism when the alignment is performed by manually operating the movement mechanism and the information relating to the eye to be inspected in a storage unit;
A step of automatically operating the moving mechanism so that when the eye to be examined is imaged next time, the optometry unit is moved based on the information relating to the movement associated with the information relating to the eye to be examined;
A method for controlling an ophthalmic apparatus, comprising: The information relating to the movement is information relating to movement when the alignment is performed by manually operating the movement mechanism after the movement mechanism is automatically operated to bring the optometry unit and the eye to be examined into a predetermined positional relationship. Yes,
The method of controlling an ophthalmologic apparatus according to claim 17, wherein the optometry unit is moved from the predetermined positional relationship based on the information related to the movement.   A program for causing a computer to execute each step of the method for controlling an ophthalmic apparatus according to any one of claims 11 to 18.