Ophthalmic imaging device

Abstract

To provide an ophthalmic imaging device that improves examination efficiency.SOLUTION: An ophthalmic imaging device includes control means that displays multiple examination selection buttons corresponding to a preset examination pattern on a selection screen, shifts the display to a second screen after receiving a selection operation on any examination selection button, and executes the examination after going through the display of the second screen. Identification information indicating the type of scan pattern is arranged on the examination selection buttons. Two or more types of identification information corresponding to the two or more scan patterns are arranged on at least one examination selection button. When the examination selection button on which the two or more types of identification information are arranged is selected and the examination is started, the control means scans the subject eye in each scan pattern corresponding to the two or more types of identification information and sequentially acquires OCT data of the subject eye corresponding to each scan pattern.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to ophthalmic imaging apparatus. [Background technology]

[0002] 2. Description of the Related Art Conventionally, optical coherence tomography (OCT), fundus cameras, SLOs, and the like have been widely used as ophthalmic imaging devices in medical institutions and testing facilities (hereinafter collectively referred to as "facilities, etc.").

[0003] In OCT, a tomographic image of the test eye is obtained as an OCT image by controlling the OCT optical system to scan the measurement light to the acquisition position of the test eye. In OCT, one of various scan patterns such as line scan, cross scan, multi-scan, radial scan, and raster scan is selected for each examination. A graphical user interface (GUI) is used by the examiner to select the scan pattern.

[0004] For example, in Patent Document 1, when selecting a scan pattern, UI elements on a screen 500 shown in FIG. 21 are operated. In the screen 500 shown in FIG. 21, a list 510, which is a UI element for selecting a scan pattern, is displayed simultaneously with an observation image (anterior eye observation image 520), a frontal fundus image 530, and an OCT image 540. In the screen 500 shown in FIG. 21, the anterior eye observation image 520 is used for manual or automatic alignment adjustment. In addition, in the screen 500, a UI element 550 for setting scan parameters, a UI element 560 for manual adjustment of the optical system, an optimize button 570 for automatic adjustment, a capture button 580, and the like are arranged. In other words, UI elements for inputting various operations required from the selection of a scan pattern to the start of capture are arranged on the same screen.

[0005] A list 510 lists a plurality of scan patterns. A text 510a of a desired scan pattern on the list 510 is selected based on an operation, and one of the scan patterns is alternatively selected. A scan line 535 corresponding to the selected scan pattern is displayed on the fundus front image 530. The scan pattern and the scan position can be confirmed by the fundus front image 530 and the scan line 535. An OCT image 540 is acquired and displayed in real time at the scan position indicated by the scan line 535. In FIG. 21, two OCT images constituting a cross-scan scan pattern are displayed side by side. The scan line 535 can be moved on the fundus front image 530 based on an operation, thereby changing the scan position. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2014-90748 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the screen configuration of the above-mentioned prior art, examiners who are not familiar with OCT examinations have difficulty handling the screen because the configuration in one screen is complicated. In addition, among medical institutions and examination facilities (hereinafter collectively referred to as "facilities, etc."), there are many facilities that use only a few examination patterns (combinations of one or more scan patterns) to perform examinations on most subjects. In such facilities, it is desirable to be able to efficiently perform examinations using a few predetermined examination patterns using a simpler procedure.

[0008] The present disclosure has been made in light of at least any of the problems with the conventional techniques, and has as its technical object to provide an ophthalmologic imaging apparatus that can easily improve examination efficiency. [Means for solving the problem]

[0009] An ophthalmic imaging device according to a first aspect of the present disclosure includes an imaging unit including all or a part of an OCT optical system capable of scanning tissue of a test eye with a plurality of scan patterns; a user interface for accepting operation input by an examiner; and a control means for displaying a plurality of test selection buttons corresponding to preset test patterns on a selection screen, accepting a selection operation for any of the test selection buttons on the selection screen, and further transitioning the display to a second screen on which an observation image is displayed and for adjusting a device state after accepting the selection operation, and performing the test after going through the display of the second screen, wherein the test selection buttons are provided with identification information indicating a type of the scan pattern, and at least any of the test selection buttons are provided with two or more types of the identification information corresponding to two or more scan patterns, and when an test selection button on which two or more types of the identification information are provided is selected and testing is started, the control means scans the test eye with each of the scan patterns corresponding to the two or more types of the identification information to sequentially acquire OCT data of the test eye corresponding to each scan pattern. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing a schematic configuration of an ophthalmologic imaging apparatus in an embodiment. [Diagram 2] FIG. 2 is a diagram showing an outline of an optical system of an apparatus in an embodiment. [Diagram 3] 4 is a flowchart showing the flow of operation of the device in the embodiment. [Figure 4] 13 is a selection screen in the embodiment, showing a display example in OCT / FC mode. [Diagram 5] 13 is a selection screen in the embodiment, showing a display example in an anterior segment OCT mode. [Figure 6] 13 is a selection screen in the embodiment, showing a display example in an anterior segment OCT mode. [Figure 7] 1 is an alignment screen in an embodiment, in which a face image is displayed as an observation image. [Figure 8A] 13 is a display example of a face image when the subject's eye is successfully detected. [Figure 8B] 13 is a display example of a face image when detection of the subject's eye has failed. [Figure 9] 11 is a diagram showing the relationship between an area on a face image and a movable range of an imaging unit. FIG. [Figure 10] 1 is an alignment screen in an embodiment, in which an anterior eye image is displayed as an observation image. [Figure 11] 13 is an observation screen in the embodiment, in which macular multi is selected as the scan pattern. [Figure 12] 12 is a confirmation screen corresponding to FIG. 11. [Figure 13] 1 is an observation screen in an embodiment, in which a macular map is selected as the scan pattern. [Figure 14] 14 is a confirmation screen corresponding to FIG. 13. [Figure 15] 1 is an observation screen in an embodiment, in which FC photography is selected. [Figure 16] 16 is a confirmation screen corresponding to FIG. 15. [Figure 17] 13 is a report output screen in the embodiment. [Figure 18] 11 is a setting screen according to the embodiment. [Figure 19] 11 is a setting screen according to the embodiment. [Figure 20] 13 is a confirmation screen in a modified example, in which a wide-area map (retina map) including the macula and optic disc is selected as the scan pattern. [Figure 21] 1 shows a screen configuration in the prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [overview] An embodiment of an ophthalmologic imaging apparatus according to the present disclosure will be described.

[0012] The ophthalmic imaging apparatus according to the embodiment includes at least an imaging unit, a user interface, and a control unit (controller in the embodiment). The imaging unit projects and receives light onto the subject's eye. In the following description, a unit including the imaging unit and integrally configured with the imaging unit may be referred to as the device main body for convenience.

[0013] The imaging unit has all or a part of the OCT optical system. For example, at least the objective optical system and the optical scanner of the OCT optical system are arranged in the imaging unit. In this embodiment, the OCT optical system can scan the tissue of the test eye with a plurality of scan patterns. The OCT optical system may irradiate the test eye with measurement light and detect a spectral interference signal between the measurement light and the reference light. The OCT optical system has an optical scanner for scanning the measurement light with a plurality of scan patterns.

[0014] The user interface accepts operation input by the examiner. The user interface may be, for example, a touch panel display attached to the device body, and may also serve as a display unit. UI elements for accepting operation input and captured images are displayed on the touch panel display. However, this is not necessarily limited to this, and a user interface other than a touch panel display may be adopted.

[0015] The control unit is a processor that manages various controls (e.g., photography control, display control, etc.) in the ophthalmic photography apparatus. In this embodiment, the control unit causes the display unit to display various screens, such as a selection screen and a second screen, which will be described later. The control unit also controls the photography unit to execute a photography operation.

[0016] The selection screen is displayed to allow the examiner to select an imaging operation. The control unit causes a plurality of examination selection buttons corresponding to preset examination patterns to be displayed on the selection screen. The control unit accepts a selection operation for any one of the examination selection buttons on the selection screen.

[0017] After accepting the selection operation, the display is transitioned to the second screen. The second screen is a screen on which an observation image of the subject's eye is displayed and for adjusting the device state. The control unit may start displaying the observation image at the stage of transitioning the display to the second screen. In this embodiment, the device state may be either an alignment state of the imaging unit with respect to the subject's eye or an imaging condition of the OCT optical system. The imaging condition of the OCT optical system may be, for example, at least one of focus, optical path length difference, polarization, dispersion, and scan density. A UI element for adjusting any one of these device states may be arranged on the second screen. Additionally, a UI element for inputting an operation related to capture may be arranged on the second screen.

[0018] The observation image may be an observation image of the anterior segment of the eye or an observation image of the fundus of the eye. The observation image may be a frontal image of the anterior segment of the eye or the fundus of the eye. The observation image may also be a real-time OCT image of any scan line included in the selected scan pattern.

[0019] The ophthalmologic imaging device may have, for example, an observation optical system for acquiring an observation image of the subject's eye. In addition, the ophthalmologic imaging device may further have a drive unit for adjusting the positional relationship between the subject's eye and the imaging unit for alignment adjustment. While the second screen is displayed, the device state may be manually adjustable in response to an operation input, or may be automatically adjusted.

[0020] The control unit executes an examination after displaying the second screen. The examination includes at least capturing OCT data (OCT image).

[0021] In this manner, in this embodiment, a selection screen on which a plurality of examination selection buttons are arranged, and a second screen (observation screen in the embodiment) on which an observation image is displayed and for adjusting the device state are displayed in sequence. This simplifies the procedure so that an examination pattern is selected and then the device state is adjusted for each subject's examination. In addition, since the selection screen is a separate screen from the screen on which the observation image is displayed (for example, the observation screen in the embodiment), the plurality of examination selection buttons on which identification information is arranged on the selection screen can be arranged to occupy a larger space on the screen, thereby further improving the visibility of the identification information.

[0022] Here, in this embodiment, identification information indicating the type of scan pattern is arranged on the examination selection button displayed on the selection screen. Two or more types of identification information corresponding to two or more scan patterns may be arranged on at least one of the examination selection buttons. When an examination is started by selecting an examination selection button on which two or more types of identification information are arranged, the control unit scans the subject's eye with each scan pattern corresponding to the two or more types of identification information, and sequentially acquires OCT data of the subject's eye corresponding to each scan pattern. During the examination based on the selected examination pattern, the selection screen may not be displayed and sequential operations may be performed. As described above, an examiner can easily select an examination pattern combining multiple scan patterns via the examination selection button. The examination selection button has identification information corresponding to each scan pattern arranged thereon, and further, in an examination pattern combining multiple scan patterns, identification information corresponding to each scan pattern is arranged on one examination selection button, so that an examiner can easily select a desired examination pattern via the examination selection button. Therefore, the screen configuration of this embodiment makes it easy to improve the efficiency of examinations in facilities, etc.

[0023] In this embodiment, the identification information indicating the type of scan pattern may be a graphic symbol. The graphic symbol may be, for example, a graphic representation of the scan trajectory in each scan pattern. However, the graphic symbol as the identification information is not necessarily limited to this, and may be in any form including a figure that can identify the scan pattern. Additionally or alternatively, about one to three words of text may be written as the identification information.

[0024] In the conventional device shown in FIG. 21, UI elements for inputting various operations required from selecting a scan pattern to starting capture are arranged on the same screen, and the selected scan pattern can be immediately confirmed by a scan line 535 superimposed on the frontal fundus image 530.

[0025] However, in this embodiment, a selection screen on which a plurality of examination selection buttons are arranged and a second screen (observation screen in the embodiment) on which an observation image is displayed and on which the state of the device is adjusted are displayed in sequence. If the examiner makes a mistake in selecting a scan pattern on the selection screen, reselection is required, resulting in rework. In contrast, when a graphic symbol is used for the identification information, the examiner can more intuitively grasp the contents of each scan pattern. That is, even if the scan pattern superimposed on the fundus front image when selecting an examination pattern is not necessarily displayed on the selection screen, the contents of the scan pattern can be suitably grasped by the graphic symbol arranged on the examination selection button. As a result, rework due to an erroneous selection of an examination pattern is unlikely to occur. In addition, the use of graphic symbols makes it easier to indicate each scan pattern in a space-saving manner. For this reason, display using graphic symbols is suitable for devices with limited screen size, such as devices with a touch panel display attached to the device body.

[0026] Additionally, the ophthalmic imaging apparatus may have an optical system other than the OCT optical system. For example, the ophthalmic imaging apparatus may have a front image capturing optical system. The front image capturing optical system is an optical system that captures a two-dimensional front image of the subject's eye. In this case, a pattern including capturing a two-dimensional front image can be selected as the examination pattern. For example, the examination pattern may include a pattern that combines one or more scan patterns by OCT and capturing a two-dimensional front image, a pattern that only captures a two-dimensional front image, and the like. In this case, the examination selection button on the selection screen may be provided with identification information indicating the capturing of a two-dimensional front image in addition to the OCT scan pattern.

[0027] In this embodiment, after the test pattern is selected and the screen transitions from the selection screen, the progress of the imaging operation may be displayed using the identification information. For example, the progress may be displayed on the confirmation screen. In this case, the identification information corresponding to each scan pattern (and imaging operation other than OCT) included in the selected test pattern may be arranged, and information indicating whether imaging has been completed or not may be displayed in association with each identification information. The confirmation screen displays, as an image, the OCT data acquired by any scan pattern according to the selection operation. Furthermore, the confirmation screen may include a UI element for re-imaging for receiving an operation input for instructing re-imaging. For example, when re-imaging OCT data, imaging may be performed using the same scan pattern as the OCT data displayed on the confirmation screen when the UI element for re-imaging is operated. Furthermore, the confirmation screen may include a UI element for normal termination. When the desired OCT data is acquired as a result of confirmation via the confirmation screen, the UI element for normal termination may be operated to start imaging using a scan pattern that has not been imaged, or to complete a series of imaging operations based on the test pattern. The progress display using the identification information may be displayed on a screen other than the confirmation screen. For example, it may be displayed on an observation screen.

[0028] The allocation of scan patterns for each examination pattern (in other words, the allocation of scan patterns corresponding to each examination selection button displayed on the selection screen) may be performed via a setting screen. In particular, by making the setting screen a separate screen from the selection screen, the operation performed via the selection screen is less likely to become complicated. In this case, in the setting screen, which is a screen different from the selection screen, the allocation of scan patterns corresponding to each examination selection button may be set and changed based on an operation input. Identification information is placed on each examination selection button according to the allocation of scan patterns to each examination selection button set and changed via the selection screen. Identification information may be displayed on the setting screen to indicate each imaging method. Since the identification information indicating each scan pattern is the same between the imaging screen and the setting screen, the allocation of scan patterns is facilitated.

[0029] The ophthalmologic imaging apparatus of this embodiment may further include a communication unit (communication means in the embodiment) for communicating with the outside (for example, a system in a facility). When the control unit receives an order for an examination pattern corresponding to any of the examination selection buttons, the examination selection button corresponding to the order may be selected on the selection screen regardless of the selection operation. This allows the examiner to confirm the order and easily start the examination according to the order.

[0030] [Example] Next, an example of an ophthalmologic imaging apparatus according to an embodiment will be described.

[0031] The ophthalmologic imaging apparatus 1 captures an OCT image of the subject's eye E. Furthermore, it captures at least a color fundus image as a two-dimensional reflection image of the fundus Er.

[0032] FIG. 1 is an external view of the ophthalmic imaging apparatus 1. In the present embodiment, the ophthalmic imaging apparatus 1 includes an imaging unit 3, a base 7, a drive unit 8, a face support unit 9, a face imaging camera 20, a control unit 50, and a touch panel (hereinafter referred to as a touch panel) display 100. In the following description, for convenience, the unit on which the imaging unit 3 is installed is referred to as the apparatus main body. In the present embodiment, the base 7, the drive unit 8, the face support unit 9, the face imaging camera 20, the control unit 50, and the touch panel 100 are part of the apparatus main body. However, the control unit 50 and the touch panel 100 may be units separate from the apparatus main body. The base 7, the drive unit 8, and the face support unit 9 can be appropriately omitted in the apparatus main body.

[0033] In the present embodiment, the drive unit 8 moves the imaging unit 3 in the XYZ directions with respect to the eye E to be examined on the drive unit 8. The drive unit 8 has an actuator for moving the imaging unit 3 in each movable direction and is driven based on a control signal from the control unit 100. The face support unit 9 supports the face of the subject. The face support unit 9 is fixed to the base 7. The face support unit 9 has a jaw base 9a. The jaw base 9a is movable in the vertical direction, thereby adjusting the height of the eye E to be examined according to the eye level of the apparatus.

[0034] The imaging unit 3 mainly includes the optical system shown in FIG. 2. As shown in FIG. 2, the ophthalmic imaging apparatus 1 has an OCT optical system 31, a front imaging optical system 32, and an anterior segment observation optical system 33. In the present embodiment, as shown in FIG. 2, these three optical systems share an objective optical system and are coaxial by a beam splitter / combiner (for example, a half mirror and a dichroic mirror, etc.).

[0035] The face imaging camera 20 images the face of the subject. The control unit 100 identifies the position of the eye E to be examined from the captured face image and aligns the imaging unit 3 with the identified position of the eye E to be examined by driving and controlling the drive unit 8.

[0036] <OCT Optical System> The OCT optical system 31 is used to capture an OCT image of the fundus Er. The OCT image may be a two-dimensional tomographic image or a three-dimensional image. In addition, an intensity OCT image or a motion contrast image may be acquired as the OCT image.

[0037] In this embodiment, the OCT optical system 31 scans the measurement light on the tissue of the subject's eye E using a plurality of scan patterns. The OCT optical system 31 may have, for example, two galvanometer mirrors as an optical scanner for scanning the measurement light. Instead of the galvanometer mirrors, for example, MEMS and acousto-optical elements can also be used.

[0038] The OCT optical system 31 has at least a detector, and a spectral interference signal between the return light from the tissue due to the measurement light and the reference light is detected by the detector. The controller 50 performs a predetermined process on the spectral interference signal to generate an OCT image.

[0039] For further details of the configuration of the OCT optical system 31, please refer to, for example, Japanese Patent Application Laid-Open No. 2011-147609 filed by the present applicant.

[0040] <Frontal shooting optical system> The front photographing optical system 32 acquires a two-dimensional reflection image of the fundus based on the fundus reflected light as a photographed image. The front photographing optical system may be a scanning optical system or a non-scanning optical system. Examples of the scanning optical system include a spot scan type optical system and a line scan type optical system. In the spot scan type optical system, spot-shaped photographing light is scanned two-dimensionally on the fundus. In the line scan type optical system, line-shaped photographing light is scanned in one direction (details will be described later in the second embodiment). In addition, an example of a non-scanning optical system includes the optical system of a general fundus camera. For further detailed configurations of the front photographing optical system 32, please refer to, for example, "JP Patent Publication No. 2019-118721", "JP Patent Publication No. 2019-141737", and "JP Patent Publication No. 2008-6105" by the present applicant.

[0041] <Anterior segment observation optical system> The anterior-segment observation optical system 33 captures an image of the anterior segment of the subject's eye E and obtains an anterior-segment observation image. In this embodiment, the anterior-segment observation optical system 33 illuminates the anterior segment with infrared light as observation light, and obtains a front image of the anterior segment based on the reflected light as the anterior-segment observation image. The anterior-segment observation image is used for alignment and tracking control of the photographing unit 3 with respect to the subject's eye E when photographing the fundus.

[0042] <Control Unit> The control unit 50 is a processing device (processor) that controls each unit and performs calculation processing. The control unit 50 includes a CPU, RAM, ROM, etc. For convenience, the control unit 50 is also assumed to perform image processing of various images obtained by the ophthalmic imaging apparatus 1. In other words, the control unit 50 also functions as an image processing unit.

[0043] The control unit 50 is electrically connected to each of the units, such as the OCT optical system 31, the drive unit 8, the front photographing optical system 32, the anterior eye observation optical system 33, the face photographing camera 20, the memory unit 51, the touch panel 100, etc.

[0044] The storage unit 51 may be a non-transient storage medium capable of retaining stored contents even when the power supply is cut off. For example, the storage unit 51 stores various control programs, fixed data, and the like. Also, for example, the storage unit 51 stores images captured by the ophthalmic photographing apparatus 1. The captured images may be transferred to an external storage device (for example, a storage device connected to the control unit 50 via a LAN and a WAN).

[0045] <Touch panel display> The touch panel 100 serves both as a monitor and an operation input unit in the ophthalmologic photographing apparatus 1. Various images are displayed on the touch panel 100. In addition, a graphical user interface (GUI) is displayed on the touch panel 100, and operations on UI elements (widgets) by the examiner are accepted. Various touch operations are input via the touch panel 100.

[0046] <Detailed screen configuration> A graphical user interface (GUI) used for imaging in the OCT device 1 will be described along with the flow of operations of the ophthalmic imaging device 1 in this embodiment. Fig. 3 shows a flowchart illustrating the flow of operations. Figs. 4 to 20 show screens displayed on the touch panel 100 at each timing of operations.

[0047] First, the subject's identification information (ID, name, age, etc.) is newly registered or recalled (S1). For example, the identification information is input by reading a barcode on which the subject's identification information is written with a barcode reader connected to the device, or by directly inputting the information via a keyboard. When photographing a subject whose identification information has already been registered, the identification information may be recalled by displaying a list of subjects and selecting the appropriate one from the list.

[0048] <Select inspection pattern> Next, the control unit 50 accepts a selection operation of an examination pattern (S2). In this case, an examination selection screen shown in Fig. 4 to Fig. 6 is displayed. The contents of the imaging including the imaging method are determined based on the operation input via the examination selection screen.

[0049] As shown in FIGS. 4 to 6, on the examination selection screen, an eye selection button 201, a mode switching tab 202, an examination selection button 203, and a text box 204 are displayed as UI elements.

[0050] The eye selection button 201 is a UI element for selecting the right eye, the left eye, or both eyes as the eye to be photographed. In the example of Figs. 4 to 6, three buttons corresponding to the right eye, the left eye, and both eyes are provided. When the right eye or the left eye is selected as the eye to be photographed, the subject's eye E on the selected side is photographed using a combo pattern (examination pattern) selected separately. When both eyes are selected as the eyes to be photographed, one eye is photographed using a combo pattern selected separately, and then the other eye is photographed using the same combo pattern.

[0051] The mode switching tab 202 is operated to switch the imaging mode. In this embodiment, one of three imaging modes is selected: OCT / FC mode (see FIG. 4), anterior segment OCT mode (see FIG. 5 and FIG. 6), and FC mode (not shown). The OCT / FC mode is selected when an OCT image of the fundus is to be captured. In the OCT / FC mode, capturing a front image of the fundus (either a color fundus image, an infrared image, or an autofluorescence image) can also be performed in combination with capturing an OCT image. The anterior segment OCT mode is selected when an OCT image of the anterior segment is to be captured. The FC mode is selected when a front image of the fundus is to be captured without combining OCT imaging.

[0052] The examination selection button 203 is a UI element for selecting a combo pattern. Each combo pattern includes one or more imaging operations. A combo pattern including multiple imaging operations is prepared to perform multiple imaging operations continuously on one subject's eye E. For example, as an example of a combo pattern including multiple imaging operations, there may be a pattern that combines multiple scan patterns. Each scan pattern specifies the position on the tissue where the OCT image is acquired and the number of OCT images acquired. Examples of types of scan patterns include line scan, cross scan, multi-scan, radial scan, and raster scan (also called map scan). Furthermore, multiple scan patterns with different positions on the tissue and different scan lengths may be prepared for each type. Also, for example, as an example of a combo pattern including multiple imaging operations, there may be a pattern that combines multiple imaging operations with different image types. For example, it may be a pattern in which an OCT image and a fundus front image are continuously captured, or it may be a pattern in which an intensity OCT image and a motion contrast image are continuously captured.

[0053] In this embodiment, up to four buttons are arranged on one screen as the test selection buttons 203. Each button is associated with one combo pattern. As will be described in detail later, the correspondence between the buttons and the combo patterns can be set and changed in advance via a setting screen described later.

[0054] As shown in FIG. 4 to FIG. 6, identification information corresponding to each photographing operation included in the combo pattern is arranged on each button. In this embodiment, a graphic symbol is used as the identification information. In the case of a combo pattern including a plurality of photographing operations, a plurality of graphic symbols corresponding to each photographing operation are arranged. For example, on the button 203a shown in FIG. 4, graphic symbols corresponding to each of the scan patterns in OCT photography, macular multi and macular map, are arranged, and further, a graphic symbol corresponding to photographing a frontal fundus image is arranged. For example, as shown in FIG. 4, the graphic symbol related to the fundus OCT may indicate the pattern shape (scanning trajectory) in each scan pattern. The examiner can easily grasp the combination of scan patterns included in the combo pattern through the graphic symbol indicating the pattern shape of each scan pattern. The graphic symbol corresponding to photographing a frontal fundus image may be a symbol that shows a schematic representation of the frontal fundus image. Thus, in this embodiment, one or more graphic symbols corresponding to each photographing operation are arranged on each button, thereby indicating the content of the combo pattern corresponding to each button.

[0055] When any one of the examination selection buttons 203 is selected, details of the combo pattern corresponding to the selected button are displayed as text information in the text box 204. That is, the imaging conditions (scanning conditions) for each imaging operation included in the combo pattern are displayed for each imaging operation.

[0056] By operating the start button 205 while any one of the test selection buttons 203 is selected, the test pattern is determined and the test selection screen transitions to the next screen (an alignment screen in this embodiment).

[0057] 4 to 6, when the imaging mode is switched based on the operation of the mode switching tab 202, the examination selection button 203 is also changed in conjunction with the imaging mode. For example, as shown in Fig. 5, in the anterior segment OCT mode, a button on which a symbol indicating a scan pattern in anterior segment OCT is arranged is displayed as the examination selection button 203.

[0058] In this embodiment, an anterior segment OCT can be photographed by attaching an anterior segment adapter (not shown) to an examination window of the photographing unit 3. For details of the anterior segment adapter, see, for example, Japanese Patent Application Laid-Open No. 2011-147609 filed by the present applicant.

[0059] Therefore, when a button corresponding to a combo pattern including a scan pattern of an anterior segment OCT is selected, a message requesting attachment of the anterior segment adapter is displayed in the text box 204. In this case, for example, the control unit 50 may detect attachment or detachment of the anterior segment adapter in parallel with displaying the examination selection screen. When the anterior segment adapter is not attached, the control unit 50 may disable the operation of the start button 205 even if the selected examination selection button 203 corresponds to a combo pattern including a scan pattern of an anterior segment OCT. In addition, the message requesting attachment of the anterior segment adapter may be output when the operation of the start button 205 is input and attachment of the anterior segment adapter is not detected. In addition, in this embodiment, when photographing the anterior segment OCT, a forehead rest for adjusting the working distance is attached to the face support unit 9 together with the anterior segment adapter. When attachment of the anterior segment adapter is detected, a message prompting attachment of the forehead rest may be further displayed by a pop-up window 206 as shown in FIG. 6, triggered by detection of attachment of the anterior segment adapter. This can suitably prevent forgetting to put on the forehead rest when taking an anterior segment OCT image.

[0060] <Alignment> When the examination selection button 203 is selected on the examination selection screen, and then the start button 205 is operated, the screen transitions to the alignment screen. The alignment screen is shown in Figures 7 and 10. In this state, alignment adjustment is performed (S3).

[0061] At least an observation image for alignment is displayed on the alignment screen shown in FIG. 7 and FIG. 10. The observation image may be either a face image 211 (see FIG. 7) acquired via the face photographing camera 20 or an anterior eye observation image 212 (see FIG. 10) acquired via the anterior eye observation optical system 33. In parallel with the display of the alignment screen, the control unit 50 adjusts the position of the photographing unit 3 relative to the subject's eye E to a position where the subject's eye E can be photographed based on the observation image. In this embodiment, the positions of the photographing unit 3 and the chin rest 9a of the face support unit 9 are adjusted from a state where they are each a predetermined initial position to a state where the optical axis of the photographing unit 3 coincides with the subject's eye E and further becomes a proper working distance.

[0062] The alignment screens shown in Figs. 7 and 10 further display a chin rest height adjustment button 231 and a front-rear adjustment button 232. The chin rest height adjustment button 231 includes a pair of buttons corresponding to up and down. When the chin rest height adjustment button 231 is operated, the control unit 50 moves the chin rest 9a of the face support unit 9 in the up and down direction. The front-rear adjustment button 232 is operated to change the position of the imaging unit 3 in the front-rear direction. The front-rear adjustment button 232 includes a pair of buttons corresponding to front and rear. When the front-rear adjustment button 232 is operated, the control unit 50 moves the imaging unit 3 in the front-rear direction.

[0063] In this embodiment, first, as shown in FIG. 7, a face image 211 obtained via face photographing camera 20 is displayed as an observation image.

[0064] The control unit 50 analyzes the face image 211 to detect the position of the subject's eye E. At this time, a line 211a indicating the reference height of the eye level is displayed at a fixed position in the observation image display area 211. The line 211a is shown by a dashed line in FIG. 7. If the position of the subject's eye E is far from the line 211a, the examiner operates the chin rest height adjustment button 231 to bring the subject's eye E closer to the line 211a, so that the subject's eye E (and the position of the subject's eye E) can be detected from the face image 211. The position of the subject's eye E may be acquired as two-dimensional coordinates on the face image 211.

[0065] When the subject's eye E is detected on the face image 211, the detection result is displayed. In this embodiment, FIG. 8A is an example of the face image 211 when the detection is successful, and a mark 211c is superimposed on the position of the subject's eye E detected in the face image 211. However, due to erroneous detection, the mark 211c may be superimposed on another position such as the eyebrow. In this case, the correct position of the subject's eye E is touched, and the detected position is corrected to the touched position or to the position of the subject's eye E detected in the peripheral area of ​​the touched position. FIG. 8B is an example of the face image 211 when the detection fails. When the detection fails, a mark 211d in a form different from that when the detection is successful is superimposed on a predetermined position. In FIG. 8B, as an example, a mark 211d in a broken line is superimposed on the line 211a. In this case, the detected position can be corrected by touching the correct position of the subject's eye E in the same manner as above.

[0066] When the position of the subject's eye E can be detected based on the face image 211, the control unit 50 moves the photographing unit 3 from the initial position to perform automatic alignment. For example, the position of the photographing unit 3 is changed in a direction in which the optical axis of the photographing unit 3 (hereinafter referred to as the photographing optical axis) approaches the detected subject's eye E. In other words, the position of the photographing unit 3 is adjusted based on the position of the subject's eye E detected based on the face image 211.

[0067] In this embodiment, the range in which the imaging unit 3 can move in the vertical direction is narrow compared to the angle of view of the face image 211. Even if the subject's eye E is detected outside the movable range, proper alignment cannot be performed by moving the imaging unit 3 alone.

[0068] In contrast, in this embodiment, when a face image 211 is displayed as an observation image, a mask 211b is superimposed on the display area of ​​the observation image. In this embodiment, the mask 211b is superimposed above and below the display area. The mask 211b indicates that the area is outside the movable range of the photographing unit 3. More specifically, in this embodiment, the area on which the mask 211b is superimposed is outside the movable range of the photographing unit 3 when the photographing unit 3 is in a predetermined position (for example, an initial position). For example, as shown in FIG. 9, when the mask 211b is superimposed on the subject's eye E in the face image 211, the subject's eye E is located outside the movable range of the photographing unit 3. In the case of FIG. 9, since the position of the subject's eye E is below the movable range of the photographing unit 3, the subject's eye E can be positioned within the movable range of the photographing unit 3 by operating the chin rest height adjustment button 231 in a direction to raise the chin rest 9a. As a result, the photographing unit 3 can be moved to appropriately adjust the positional relationship between the photographing unit 3 and the subject's eye E. In this way, the examiner can easily know whether or not the height of the chin rest 9a needs to be adjusted by superimposing the mask 211b on the region of the face image 211 that is outside the movable range of the photographing unit 3. Furthermore, when the position of the subject's eye E on the face image 211 is outside the movable range of the photographing unit 3, the examiner can be appropriately prompted to operate the chin rest height adjustment button 231.

[0069] As described above, in this embodiment, when the imaging unit 3 is in a predetermined position (e.g., the initial position), the mask 211b is superimposed outside the movable range of the imaging unit 3, but this is not necessarily limited to this, and when the facial image 211 is displayed while the imaging unit 3 is moving, the position of the mask 211b on the facial image may be changed depending on the position of the imaging unit 3.

[0070] In this embodiment, the case where the examiner judges whether or not the position is outside the movable range of the photographing unit 3 by checking the observation image and adjusts the height of the chin rest based on the examiner's operation has been described, but the present invention is not necessarily limited to this. For example, the control unit 50 judges whether or not the position of the subject's eye E detected from the face image 211 is outside the movable range of the photographing unit 3, and further, when the position of the subject's eye E is outside the movable range of the photographing unit 3, the height of the chin rest may be automatically adjusted, or guide information for prompting the examiner to adjust the height of the chin rest 9a may be output via the user interface. However, when detecting the subject's eye E from the face image 211, there may be cases where the detection is erroneous or fails. In contrast, as in this embodiment, the examination may proceed more smoothly if the area outside the movable range of the photographing unit 3 is shown on the observation image on which the face image is displayed, and the examiner is prompted to intervene.

[0071] Based on the operation of the transition button 291, the anterior eye observation image 212 is displayed as an observation image (see FIG. 10). In this embodiment, when the auto alignment button 233 is selected, the position of the photographing unit 3 is automatically moved with respect to the subject's eye E based on the anterior eye observation image 212. In this embodiment, after the alignment index is projected and the positional relationship in each of the XYZ directions is adjusted, the photographing optical axis is further adjusted so as to coincide with the pupil center in the XY directions. In this embodiment, an indicator 212a is superimposed on the anterior eye observation image 212. The state of the indicator 212a changes depending on the alignment state. This indicates the alignment state. In this embodiment, the position of the photographing optical axis with respect to the subject's eye E in the XY directions can be adjusted based on a touch operation on the anterior eye observation image 212. For example, when an area in the direction in which the indicator 212a is to be moved is touched on the anterior eye observation image 212, the photographing unit 3 is moved according to that direction. Furthermore, this is not necessarily limited to this, and the photographing unit 3 may be moved so that the center (imaging optical axis) of the indicator 212a is moved to the touched position, or pupil detection may be performed centered on the touched position, and the photographing unit 3 may be moved so that the center (imaging optical axis) of the indicator 212a is moved to the center of the detected pupil area.

[0072] In the following, unless otherwise specified, a case where the button 203a shown in Fig. 4 is selected in the OCT / FC mode on the examination selection screen will be described as an example. Therefore, the operation when an OCT image is captured using a macular multi and a macular map, and further a frontal fundus image is captured will be described.

[0073] <Adjusting shooting conditions> After the alignment is completed, the photographing conditions are adjusted (S4). In this embodiment, after the alignment is completed, the alignment screen transitions to the observation screen. When the button 203a shown in FIG. 4 is selected in the OCT / FC mode, the OCT image is photographed first using the macular multi-scan pattern. The observation screen displayed in this case is shown in FIG. 11. In this embodiment, the configuration of the observation screen when photographing the OCT will be described based on FIG. 11. As shown in FIG. 11, in this embodiment, the observation screen when photographing the OCT displays a front fundus image 213, a tomographic image 214, a detection condition controller, and a Capture button 245 on the screen. The front fundus image 213 and the tomographic image 214 displayed on the observation screen before the capture may be observation images acquired in real time. In addition, a graphic showing the scan pattern is displayed on the front fundus image 213. The graphic allows the examiner to grasp the photographing position of the OCT image.

[0074] The imaging condition controller is operated to adjust the detection conditions of the OCT optical system 31 and the imaging conditions of the front imaging optical system 32. The detection conditions are any of various conditions related to the detection ability of ocular tissue, and specifically include the optical path length difference (hereinafter, OPL), focus, detection sensitivity, polarization state, etc. The imaging conditions are, for example, focus, brightness (any of light amount, gain, and exposure time), contrast, etc.

[0075] In this embodiment, an Optimize button 241, a focus controller 242, and an OPL controller 243 are arranged as shooting condition controllers.

[0076] When the Optimize button 241 is operated, the control unit 50 executes adjustment processing of the OCT optical system 31 and the front photographing optical system 32. In this embodiment, as an example, the OPL, focus, and polarization in the OCT optical system 31 and the focus of the front photographing optical system 32 are at least adjusted to a predetermined state. The focus of the OCT optical system 31 and the front photographing optical system 32 may be adjusted based on a fundus observation image (fundus front image 213). In this case, a focus index may be projected onto the fundus, and the focus may be adjusted based on the focus index reflected in the fundus observation image. The result of the adjustment processing is reflected, for example, in the image quality and image position of the fundus front image 213 and the tomographic image 214. When the user checks the fundus front image 213 and the tomographic image 214 and determines that the adjustment has failed, the user can further operate the focus controller 242 and the OPL controller 243 to try manual adjustment.

[0077] The focus controller 242 and the OPL controller 243 are operated to manually adjust the detection conditions and the imaging conditions, respectively. In this embodiment, the focus controller 242 and the OPL controller 243 are sliders, and the positions of the "knobs" are moved based on a drag operation or the like. Depending on the positions of the knobs, the imaging conditions and the detection conditions are set. For example, the sliders of the focus controller 242 and / or the OPL controller 243 are operated depending on the depth position of the layer region where it is desired to image with higher sensitivity.

[0078] Additionally, in this embodiment, an anterior eye observation image 212, a chin rest height adjustment button 231, a front-back adjustment button 232, and an auto-alignment button 233 are also displayed on the observation screen. This allows the alignment state to be confirmed even after transitioning to the observation screen. If the position of the subject's eye E has moved from the appropriate alignment position, alignment adjustment can be performed automatically or manually.

[0079] <Capture> The Capture button 245 accepts an operation that serves as a trigger to start capturing. By operating the Capture button 245, a scan for capturing is performed with a pre-determined scan pattern (in FIG. 11, a macular multi-scan pattern) (S5).

[0080] <Display confirmation screen> When the image capturing is completed, the screen transitions to a confirmation screen. The confirmation screen is a screen for confirming the image capturing results. In this embodiment, the output contents of the report can be selected via the confirmation screen.

[0081] For example, when imaging using a macular multi-scan pattern is completed, the screen shown in Fig. 12 is displayed as a confirmation screen. In this embodiment, the confirmation screen displays a tomographic image 214 obtained by the imaging scan, as well as an anterior eye observation image 212 and a front fundus image 213. The anterior eye observation image 212 and the front fundus image 213 displayed on the confirmation screen may be still images acquired simultaneously with the imaging scan. Through the anterior eye observation image 212 and the front fundus image 213, the alignment state during imaging and the appropriateness of the imaging conditions can be confirmed.

[0082] When the tomographic image 214 is captured for a plurality of scan lines, the tomographic image 214 displayed on the confirmation screen can be switched to an image captured for another scan line. In this embodiment, a scan line change button 251 is arranged on the confirmation screen. Each time the scan line change button 251 is operated, the tomographic image 214 displayed on the confirmation screen is switched to an image on another scan line in a predetermined order. The tomographic image 214 displayed on the confirmation screen is used as a representative image in the plurality of scan lines. The representative image is an image output to a report among the tomographic images captured for a plurality of scan lines. In the case of a macular multi-scan pattern, one representative image is set for each scan line in the XY directions. However, the number of representative images and the direction of the scan line can be appropriately determined for each scan pattern.

[0083] In addition, the tomographic image displayed on the screen is switched between the scan line in the X direction and the scan line in the Y direction by operating the switch button 252. In addition, the tomographic image 214 is enlarged and displayed by operating a button not shown.

[0084] The confirmation screen further includes an OK button 292 and a Retake button 293. The Retake button 293 is operated to perform re-imaging. In this embodiment, when the Retake button 293 is operated, the most recent imaging result is discarded and the screen transitions to the observation screen. In this case, imaging is performed using the same scan pattern as the most recent imaging.

[0085] When the OK button 292 is operated, the photographing result is saved. Also, when the selected combo pattern includes a photographing operation that has not yet been photographed, the screen transitions to the observation screen. In this case, the scan pattern or the type of image to be photographed is changed to the next one in the order.

[0086] The progress (completion) of the imaging operations included in the selected combo pattern is shown in a progress display box 253 (progress display area in the embodiment). In detail, one or more symbols corresponding to the imaging operations included in the combo pattern selected in advance are arranged in the progress display box 253. The symbol shown in the progress display box 253 is the same as the symbol displayed on the button selected by the examiner among the examination selection buttons 203. As shown in FIG. 12, a check mark is superimposed on the symbol corresponding to the completed imaging operation. This allows a distinction between the completed imaging operation and the incomplete imaging operation. Therefore, the examiner can easily grasp the progress of the imaging operations included in the combo pattern through the symbol.

[0087] When the OK button 292 is operated on the confirmation screen, if there is an unexecuted shooting operation (S7: No), the screen proceeds to the next shooting operation. When the OK button 292 is operated on the confirmation screen of FIG. 12, the screen proceeds to the next shooting operation, shooting using the macular map. At that time, the control unit 50 transitions the screen from the confirmation screen shown in FIG. 6 to the observation screen shown in FIG. 13. On the observation screen when shooting the macular map, the graphic superimposed on the fundus front image 213 represents the scan pattern of the macular map. The other points are the same as those in FIG. 11. When the Capture button 245 is operated, shooting using the macular map is executed. As a result, a three-dimensional tomographic image centered on the macula is captured. When shooting is completed, the screen transitions to the confirmation screen shown in FIG. 14.

[0088] In this embodiment, an operation input for changing and setting the analysis region 213a in the three-dimensional tomographic image can be accepted via the confirmation screen shown in FIG. 14. In detail, the position of the analysis region 213a can be changed in the XY direction via the front image 213. For example, a mark 213b indicating the center position of the analysis region 213a can be moved in response to an operation on the touch panel 100. In this embodiment, the reference position of the analysis process using the normal eye database is displaced in response to the center position. However, this is not necessarily limited to this, and the reference position in the analysis process may be changeable. In addition, when changing the analysis region 213a in the depth direction, the analysis region change button 254 is operated. As an example, in FIG. 14, a button corresponding to the entire retina and a button corresponding to GCC (Ganglion Cell Complex) are arranged as the analysis region change button 254. By selecting one of the buttons, the region corresponding to the selected button is set as the analysis region 213a in the depth direction. The GCC is a complex layered region consisting of the retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), and inner plexus layer (IPL).

[0089] The analysis area 213a changed or set via the confirmation screen is reflected in the analysis process for the imaging results displayed on the confirmation screen. In this embodiment, as an example, an analysis process for tissue thickness is performed. A two-dimensional distribution of the measured values ​​of the tissue thickness and / or a two-dimensional distribution of the comparison result between the tissue thickness of a normal eye and the measured values ​​is output as a result of the analysis process. The analysis process may be performed, for example, when a report for the imaging results is generated, or may be performed at other times. Furthermore, the content of the analysis process is not limited to the analysis process for layer thickness (details will be described later).

[0090] When the OK button 292 is operated on the confirmation screen in Fig. 14, the operation proceeds to the next photographing operation of photographing a frontal image of the fundus. At that time, the control unit 50 transitions the screen from the confirmation screen shown in Fig. 14 to the observation screen shown in Fig. 15. In the following description, it is assumed that a color image is photographed as an example.

[0091] In this case, no further OCT acquisition is performed, so the observation screen when capturing a frontal fundus image (color image) does not have any OCT-related controllers or display areas. Other points are the same as in Figures 11 and 13. When the Capture button 245 is pressed, the screen transitions to the confirmation screen shown in Figure 16.

[0092] 16, if the OK button 292 is operated and the opposite eye has not yet been photographed (S7: No), the photographing unit 3 is moved to the opposite eye, and photographing is repeated for the opposite eye using the same photographing method. When various photographing operations corresponding to the selected examination selection button 203 are completed (S7: Yes), a report output screen is displayed (S8).

[0093] In this embodiment, the symbol displayed in the progress display box 253 of the confirmation screen is also used as a UI element for changing the next imaging operation. For example, any one of the symbols displayed in the progress display area on the confirmation screen is arbitrarily selected based on an operation input. After the selection, when the OK button 292 is operated, the selected imaging operation is performed. This makes it possible to appropriately skip a pattern for which imaging is no longer necessary in the examination, or to change the order of the examination. In addition, a left / right eye switching button 255 is disposed in the progress display box 253. When the left / right eye switching button 255 is operated, the imaging operation of the opposite eye is performed. This makes it possible to switch between the left and right eyes at any stage and proceed with the examination.

[0094] <Report output screen> An example of the report output screen is shown in Fig. 17. In this embodiment, a report is generated for each photographing operation and each subject's eye E. When a macular multi, a macular map, and a frontal fundus image are photographed for each of the left and right eyes, three types of reports are output for each of the left and right eyes. In other words, a total of six reports 301 are generated and displayed on the report output screen.

[0095] 17, on the report output screen of this embodiment, graphic symbols 302 corresponding to the imaging operations on which each report 301 is based are arranged around each report 301. The graphic symbols arranged around the report 301 are the same as the graphic symbols displayed on the button selected by the examiner among the examination selection buttons 203, so that the examiner can easily understand, via the graphic symbols, which imaging operation results each report indicates.

[0096] On the report output screen, check boxes 303 are arranged corresponding to each report 301. Selecting a check box 303 gives a check mark to the report. Operating an export button 304 or a print button 305 with a check mark given to any report outputs the report with the check mark given. Also, selecting the collective selection check box 303 makes it possible to give or remove a check mark to all reports.

[0097] When the export button 304 is operated, the data of the report for which the check mark has been added is transferred to a specified address. The print button 305 causes a printer (not shown) to print out the report for which the check mark has been added.

[0098] <Pre-set combo patterns> As described above, the combo patterns that can be selected by operating the examination selection buttons 203 (see FIGS. 4 to 6) can be set and changed in advance.

[0099] Screens used for setting combo patterns are shown in Figures 18 and 19. On the screen shown in Figure 18, a list of test selection buttons 203 that can be selected in each mode is displayed.

[0100] When any of the buttons is selected and the Edit button 401 is operated, the screen transitions to that of FIG. 19, and the combo pattern corresponding to the button can be edited. The screen of FIG. 19 displays a combo list 406. A cell on the combo list 406 in which "+" is displayed is selected, and one of the multiple scan patterns listed in the scan pattern selection unit 403 is selected, whereby a scan pattern included in the combo list 406 is added. In the case of a scan pattern related to OCT, the scan parameters (e.g., scan length, scan pitch, and angle) can be changed from the default values ​​via the scan parameter setting unit 404. In the case of a scan pattern related to OCT, whether or not to capture a front fundus image in conjunction with OCT photography is set via the OCT / FC continuous photography setting unit 405. In a photography operation in which On is selected, a front fundus image (color fundus image) is captured continuously after OCT photography without requesting a release operation. In other words, a continuous pattern of OCT and front fundus image is set.

[0101] A combo pattern corresponding to each examination selection button 203 is set based on the combo list 406 edited via the screen of Fig. 19. Also, the symbol placed on each examination selection button 203 is changed according to the combo pattern.

[0102] <Modification> The techniques disclosed in the above embodiments are merely examples. Therefore, the techniques exemplified in the above embodiments may be modified. For example, it is possible to execute only a part of the techniques exemplified in the above embodiments.

[0103] For example, in the above embodiment, when imaging is performed by map scanning, an operation input for changing and setting the analysis region in the three-dimensional tomographic image can be received via the confirmation screen. In the above embodiment, one analysis region centered on the macula is set, but multiple analysis regions may be set. For example, when map scanning is performed with the imaging range including the macula and the optic nerve, an analysis map corresponding to each analysis region may be generated by analyzing three-dimensional OCT data in each of a first analysis region set around the macula and a second analysis region set around the optic nerve. In this case, an operation input for changing the reference position of the analysis in each of the first analysis region and the second analysis region may be input on the same confirmation screen. For example, as shown in FIG. 20, an operation for moving the first mark 213c indicating the center position of the first analysis region and the second mark 213d indicating the center position of the second analysis region may be input, so that the reference position of each analysis region may be changed in the XY direction. The analysis region in the depth direction may also be set individually between the first analysis region and the second analysis region.

[0104] In the above embodiment, the analysis process is performed on the thickness of the tissue. However, the analysis process is not limited to this. The analysis process may be performed on the measurement value (actual measurement value) based on the three-dimensional OCT data other than the thickness of the tissue, or may show the result of comparing the measurement value with the normal eye data. The measurement value based on the three-dimensional OCT data may be related to at least one of the thickness, density, and shape of the tissue. For example, the analysis map may be a thickness map of the tissue of the subject's eye E (specific examples include a fundus layer thickness map, a corneal thickness map, etc.), a density map (specific examples include a blood vessel density map, a cell density map, etc.), a curvature map (topography), a height map (elevation map), or a two-dimensional distribution of layer thickness information or a two-dimensional distribution of blood vessel information other than those listed here. The normal eye data may be statistical data of the normal eye for the measurement value (actual measurement value) based on the three-dimensional OCT data. The comparison result may be information indicating the degree of deviation between the measurement value and normal eye data, and may be expressed, for example, by any of a difference, a ratio (for example, a percentile), and a deviation value. The analysis map may also indicate a two-dimensional distribution of the change over time in the measurement value or the comparison result. In the above embodiment, the three-dimensional OCT data on which the analysis map is based indicates the reflection intensity in a three-dimensional area (a two-dimensional area in the XY directions plus a depth direction) of the subject's eye E, but is not necessarily limited to this, and may be three-dimensional motion contrast data. [Explanation of symbols]

[0105] 3. Photography Department 50 Control section 51 Storage section 100 Touch Panel Display 203 Examination selection button

Claims

1. An imaging unit including all or a part of an OCT optical system capable of scanning tissue of a subject's eye with a plurality of scan patterns; a user interface that accepts operation input by an examiner; a control means for displaying a plurality of inspection selection buttons corresponding to preset inspection patterns on a selection screen, accepting a selection operation for any of the inspection selection buttons on the selection screen, and further transitioning the display to a second screen on which an observation image is displayed and for adjusting an apparatus state after accepting the selection operation, and executing the inspection after passing through the display of the second screen, Identification information indicating a type of the scan pattern is disposed on the test selection button, and at least one of the test selection buttons is disposed with two or more types of the identification information corresponding to two or more scan patterns, The control means of this ophthalmic imaging device scans the subject's eye with each scan pattern corresponding to the two or more types of identification information when the examination selection button on which two or more types of identification information are located is selected and the examination is started, and sequentially acquires OCT data of the subject's eye corresponding to each scan pattern.

2. 2. An ophthalmologic photographing apparatus according to claim 1, wherein the identification information is a graphic symbol.

3. The apparatus has a main body including at least the photographing unit, 3. The ophthalmologic photographing apparatus according to claim 1, wherein the user interface is a touch panel display attached to the apparatus body, and also serves as a display unit on which the selection screen is displayed.

4. When a selection operation is received for the examination selection button on which two or more types of identification information are arranged on the selection screen, An ophthalmic photography device as described in any one of claims 1 to 3, wherein after a screen transition from the selection screen, two or more photographing operations based on scan patterns corresponding to each of the identification information are executed sequentially without displaying the selection screen in between.

5. Further comprising a means for communicating with the outside, 5. An ophthalmologic photographing device according to claim 1, wherein when an examination order corresponding to any one of the examination selection buttons is acquired via the communication means, the examination selection button corresponding to the examination order is selected on the selection screen regardless of the selection operation.

6. 6. The ophthalmologic photographing apparatus according to claim 1, wherein after a screen transition from the selection screen based on the selection operation, a progress status of a photographing operation is displayed using the identification information.

7. An ophthalmic imaging device as described in any one of claims 1 to 6, wherein after acquiring OCT data of a test eye corresponding to two or more types of scan patterns, a list of multiple reports generated corresponding to each scan pattern is displayed, and identification information corresponding to each report is placed around each report on a report output screen that accepts the selection operation of the report to be output.

8. In a setting screen different from the selection screen, the assignment of the scan patterns corresponding to each examination selection button can be set and changed based on an operation input; 8. The ophthalmologic photographing apparatus according to claim 1, wherein, on the selection screen, the identification information is arranged for each examination selection button in accordance with an allocation of the scan pattern to each examination selection button.

9. 9. The ophthalmologic photographing apparatus according to claim 8, wherein the identification information is displayed on the setting screen to indicate each of the scan patterns.

Images