JP2018164828A - Subjective optometric device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform subjective optometry without causing a subject to recognize a target presentation object.SOLUTION: A subjective optometric device includes: a target display part which includes a target display region where a plurality of partial regions are set beforehand and is capable of displaying a target in each of the partial regions; a user interface for receiving a partial region selection instruction for selecting a partial region and a presentation object selection instruction for selecting a target presentation object from a right eye, a left eye, and both eyes to be examined; and a target display control part for controlling the target display part for causing the target for the selected presentation object to be displayed in the selected partial region. The user interface includes: a display part; and an examination information display control part for causing examination information indicating which of the right eye, left eye, and both eyes to be examined is a presentation object of a target newly displayed in any partial region to be displayed in the display part in response to reception of the partial region selection instruction and the presentation object selection instruction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a subjective optometry apparatus.

  The subjective optometry apparatus is an apparatus for presenting a visual target to the subject's eye and examining the visual function of the subject's eye based on a response from the subject regarding how the eye is viewed.

  In a test using a subjective optometry device, if the target is to be presented without the subject being aware of the target of the target (left eye, right eye, or both eyes), that is, the target of the target is In some cases, it is desired to examine the left eye, the right eye, or both eyes without realizing the subject. As an example of the test in this case, there is a test for one eye blindness or psychogenic visual impairment. As one of inspection methods in these inspections, a pinhole method is known. This method is a method of performing a binocular open test in a state where the healthy eye is incompletely shielded and a pinhole is disposed in front of both eyes. Further, by using a display device in which polarizing films having orthogonal polarization axes are alternately arranged for each pixel line and a polarizing filter having a polarization axis corresponding to these polarizing filters and arranged in front of the eyes, There is known a subjective optometry apparatus configured to present different visual targets.

JP 2009-60941 A

Hiroaki Nagashima, 4 others, "Three cases where the bilateral pinhole method was effective for diagnosis", Clinical Ophthalmology, School of Medicine, Vol. 65, No. 6, p799-802

  However, since the procedure of the pinhole method is complicated, it is necessary to be skilled to perform an inspection while changing the subject to be presented without realizing the subject. Further, in the conventional subjective optometry apparatus using a polarizing filter, it is impossible to display a plurality of targets having different presentation targets in a direction parallel to the pixel line. For this reason, there is a risk that the subject will be aware of the subject to be presented.

  The present invention has been made to solve such a problem, and its purpose is to provide a technique for performing a subjective optometry without the subject being aware of the target of the target. is there.

  The subjective optometry apparatus according to the embodiment includes a target display area in which a plurality of partial areas are set in advance, and a target display section capable of displaying a target in each of the plurality of partial areas, and the plurality of parts A user interface that receives a partial area selection instruction for selecting at least one of the areas and a presentation target selection instruction for selecting a target to be presented from the left eye, the right eye, and both eyes And a target display control unit that controls the target display unit to display a target for the presentation target selected by the presentation target selection instruction in each partial region selected by the partial region selection instruction; And the user interface corresponds to the display unit, the partial area selection instruction, and the presentation target selection instruction being accepted, and any of the plurality of partial areas is received. An examination information display control unit for causing the display unit to display examination information indicating which of the left subject eye, the right subject eye, and the both subject eyes is to be presented as a target to be newly displayed It is characterized by including.

  According to the present invention, it is possible to provide a technique for performing subjective optometry without the subject being aware of the target to be presented.

The schematic diagram showing the external appearance of the subjective optometry apparatus which concerns on embodiment. The block diagram showing the structure of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The flowchart showing operation | movement of the subjective optometry apparatus which concerns on embodiment. The block diagram showing the structure of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The flowchart showing operation | movement of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The flowchart showing operation | movement of the subjective optometry apparatus which concerns on embodiment. The block diagram showing the structure of the subjective optometry apparatus which concerns on embodiment. The schematic diagram showing the outline of the subjective optometry apparatus which concerns on embodiment. The flowchart showing operation | movement of the subjective optometry apparatus which concerns on embodiment.

<First Embodiment>
[Constitution]
A configuration of the subjective optometry apparatus according to the first embodiment will be described. FIG. 1 is a schematic diagram illustrating an appearance of a subjective optometry apparatus according to the present embodiment. FIG. 2 is a block diagram showing the configuration of the subjective optometry apparatus according to the present embodiment. FIG. 3 is a schematic diagram illustrating the outline of the drive mechanism 11 and the target display unit 2. The subjective optometry apparatus includes an optometry unit 1, a target display unit 2, and an operation device 3. For example, the subjective optometry apparatus is provided in the optometry table 4.

  The optometry table 4 is a desk for supporting the optometry unit 1 and placing the operation device 3. For example, the optometry table 4 is provided with the column 5 standing. The support | pillar 5 is comprised so that expansion-contraction is possible in the longitudinal direction. The support 5 supports the lateral arm 6. The lateral arm 6 suspends the optometry unit 1 at an end portion (referred to as a tip portion) opposite to the support column 5. An operation arm 7 is provided at the distal end of the horizontal arm 6 so as to protrude from the distal end. The operation arm 7 can be rotated in the direction around the axis of the column 5 (in the directions of arrows a and b) together with the lateral arm 6 and the optometry unit 1 in response to an operation by the examiner. A chair 8 for the subject SU may be provided in the vicinity of the optometry table 4.

(Optometry unit 1)
The optometry unit 1 can selectively arrange a plurality of optical elements 10 in the optometry window 9. The eye to be examined is arranged facing the optometry window 9. Thereby, the eye to be examined can see the visual target through the arranged optical element 10. The optometry unit 1 includes a left subject eye unit 1L for the left subject eye EL and a right subject eye unit 1R for the right subject eye ER. The left eye unit 1L and the right eye unit 1R are provided to be slidable in the horizontal direction (the direction of the arrow A1 shown in FIG. 1).

  The left eye unit 1L includes a left eye examination window 9L. The left eye unit 1L can selectively arrange the optical element 10L for the left eye in the left eye examination window 9L. The right eye-to-examine unit 1R includes a right eye-inspecting eye 9R. The right eye unit 1R can selectively arrange the optical element 10R for the right eye in the right eye examination window 9R. The left eye unit 1L and the right eye unit 1R are configured to be individually operable. The optometry unit 1 includes a plurality of optical elements 10 and a drive mechanism 11.

(Optical element 10)
The plurality of optical elements 10 (10L, 10R) are a set of various lenses and polarizing filters for inspecting the visual function of the eye to be examined. For example, the plurality of optical elements 10 include at least one of a spherical lens, a cylindrical lens, a progressive lens, and a prism lens. The plurality of optical elements 10 are grouped for each type of optometry parameter. The polarizing filter includes a polarizing filter for the left eye to be examined and a polarizing filter for the right eye to be examined. The polarization filter for the left eye to be examined is included in the optical element 10L for the left eye to be examined. The polarizing filter for the right eye to be examined is included in the optical element 10R for the right eye to be examined. The polarizing filter for the left eye to be examined and the polarizing filter for the right eye to be examined are provided so that their polarization axes are orthogonal to each other.

  The optometry parameter indicates an examination condition for examining the visual function of the eye to be examined. For example, the type of optometry parameter includes at least one of spherical power, astigmatism power, astigmatic axis angle, addition power, interpupillary distance, prism power, and prism direction. As a grouping for each type of optometry parameter, the spherical power group includes a plurality of spherical lenses, each of which is composed of spherical lenses having different spherical powers. The set of astigmatism powers includes a plurality of cylindrical lenses, each of which is composed of cylindrical lenses having different astigmatic powers. In addition, the group of astigmatism power may be further classified for every astigmatic axis angle. The set of addition powers includes a plurality of progressive lenses, each of which is composed of progressive lenses having different addition powers. The set of prism powers includes a plurality of prism lenses, each of which is composed of prism lenses having different prism powers. Note that the prism power sets may be further grouped for each prism direction. The interpupillary distance is an examination condition set in accordance with the interpupillary distance of the eye to be examined. The interpupillary distance is set when the left eye unit 1L, the right eye unit 1R, or both slide in the horizontal direction (the direction of arrow A1 in FIG. 1).

(Drive mechanism 11)
The drive mechanism 11 (11L, 11R) is configured such that each of the plurality of optical elements 10 can be disposed in the optometry window 9 and retracted from the optometry window 9. For example, the drive mechanism 11 has a plurality of turret plates. The turret plate has a disk shape. The turret plate is configured to be rotatable around the circumference of the drive mechanism 11 around the center of the circle. The turret plate has a plurality of holes h in the vicinity of the edge. The optical element 10 is fitted in the hole h. The drive mechanism 11 rotates the turret plate to place each of the plurality of optical elements 10 in the optometry window 9 and retract from the optometry window 9.

  The drive mechanism 11 includes a left eye drive mechanism 11L and a right eye drive mechanism 11R. The drive mechanism 11L for the left eye to be examined is configured so that each of the plurality of optical elements 10L for the left eye to be examined can be disposed in the eye examination window 9L for the left eye to be examined and retracted from the eye examination window 9L for the left eye to be examined. The The drive mechanism 11R for the right eye to be examined is configured such that each of the plurality of optical elements 10R for the right eye to be examined can be disposed in the eye examination window 9R for the eye to be examined and retracted from the eye examination window 9R for the right eye to be examined. The The left eye drive mechanism 11L is provided in the left eye unit 1L. The right subject eye drive mechanism 11R is provided in the right subject eye unit 1R.

(Target display part 2)
The optotype display unit 2 is arranged at a predetermined distance D in front of the optometry unit 1. The target display unit 2 presents the target to the eye to be examined by displaying the target. The visual target display unit 2 displays a visual target such as a visual acuity test target, a red-green test target, and an astigmatism test target by receiving a control signal from the operation device 3.

  The target display unit 2 includes a target display area C in which a plurality of partial areas are preset, and is configured to be able to display a target in each of the plurality of partial areas. FIG. 4 is a schematic diagram illustrating an outline of the visual target display unit 2. The target display unit 2 is configured by a display device such as a liquid crystal display or an organic EL (Electro-Luminescence) display. In the target display area C, pixels (pixels) are arranged in an array. On the front side (subject side) of the target display area C, a polarizing filter is provided. For example, the partial area is an individual area obtained by dividing the visual target display area C into a predetermined number.

  The polarization filter has a first polarization filter F1 that transmits light by being polarized on the first polarization axis, and a second polarization that transmits light by being polarized on the second polarization axis orthogonal to the first polarization axis. And a filter F2. The first polarizing filter F1 and the second polarizing filter F2 are alternately provided in the vertical and horizontal directions in the pixel array.

  One of the first polarization axis and the second polarization axis is parallel to the polarization axis of the polarizing filter for the left eye to be examined. The other is parallel to the polarization axis of the polarizing filter for the right eye. Thereby, when the examination is performed, the light from the target display area C in which one of the first polarizing filter F1 and the second polarizing filter F2 is provided reaches the left eye EL. Similarly, the light from the target display area C provided with the other reaches the right eye ER. Here, an example will be described in which the first polarization axis is parallel to the polarization axis of the left eye polarization filter and the second polarization axis is parallel to the right eye polarization filter. In this example, the light from the target display area C provided with the first polarizing filter F1 reaches the left eye EL. Similarly, the light from the target display area C provided with the second polarizing filter F2 reaches the right eye ER.

(Operation device 3)
The operation device 3 accepts an operation by the examiner and outputs a control signal corresponding to the operation to the optometry unit 1 or the target display unit 2 or both. The operating device 3 and the optometry unit 1 are communicably connected by a general communication interface. The operating device 3 outputs a control signal to the optometry unit 1 through this communication interface. The controller device 3 and the visual target display unit 2 are communicably connected by a general communication interface. The controller device 3 outputs a control signal to the visual target display unit 2 via the communication interface.

  The operating device 3 includes a user interface 30, a target display control unit 31, and a main control unit 32. FIG. 5 is a schematic diagram illustrating an outline of the controller device 3. For example, the operating device 3 is configured as a tablet terminal. Here, an example will be described in which the controller device 3 is configured as a tablet terminal including a touch panel including the reception unit 301 and the display unit 302.

(User interface 30)
The user interface 30 selects a partial area selection instruction for selecting at least one of a plurality of partial areas, and a target to be presented from the left eye to be examined EL, right eye to be examined ER, and both eyes to be examined. The presentation target selection instruction is accepted. The user interface 30 includes a receiving unit 301, a display unit 302, and an examination information display control unit 303.

(Reception unit 301)
The receiving unit 301 is provided on one surface of the controller device 3. The accepting unit 301 is configured to accept a touch operation by an examiner. The touch operation includes a tap operation, a drag operation, and a flick operation on the reception unit 301. The tap operation is an operation in which the examiner touches the reception unit 301 so as to strike it. The drag operation is an operation in which the examiner touches the receiving unit 301 while dragging from the touched point to another point while touching the receiving unit 301. The flick operation is an operation in which the examiner touches the reception unit 301 to pay. For example, the reception unit 301 receives a touch operation by a general reception method such as a capacitance method, a resistance film method, or a surface acoustic wave method. The reception unit 301 outputs touch information indicating the position (coordinates) and contact time of the received touch operation to the visual target display control unit 31. The receiving part 301 is comprised by the translucent member. The receiving unit 301 is provided so as to overlap the display screen of the display unit 302.

(Display unit 302)
The display unit 302 is configured by a display device such as a liquid crystal display or an organic EL display. The display unit 302 displays characters and images representing the examination information on the display screen based on the control by the examination information display control unit 303. By providing the receiving unit 301 made of a translucent member on the display screen of the display unit 302, the examiner can perform a touch operation while visually checking the displayed examination information.

(Inspection information display control unit 303)
The inspection information display control unit 303 causes the display unit 302 to display inspection information. The examination information includes various optometry parameters and presentation target information representing the presentation target. Further, the examination information display control unit 303 causes the display unit 302 to display a first soft key for receiving a partial region selection instruction and a second soft key for receiving a presentation target selection instruction. The examination information display control unit 303 responds to acceptance of the partial area selection instruction and the presentation target selection instruction, and displays examination information representing the target of the target that is newly displayed in any of the plurality of partial areas. It is displayed on the display unit 302.

  FIG. 6 is a schematic diagram schematically illustrating a display example of the display unit 302. The examination information display control unit 303 displays the optometry parameter P, the first soft key S1, and the second soft key S2 on the display unit 302. Each of the first soft keys S1 represents information corresponding to a partial area and a target in the target display area C of the target display unit 2. In the first soft key S <b> 1, what is indicated by shading represents a partial area in which the target is not displayed on the target display unit 2. In the first soft key S <b> 1, those not represented by shading represent a partial area in which the visual target is displayed on the visual target display unit 2. Each of the second soft keys S2 represents an object to be presented. For example, the examiner may touch the soft key S11 of the first soft key S1 as a partial area selection instruction, and touch the soft key S21 of the second soft key S2 as a presentation target selection instruction. . In this case, the accepting unit 301 outputs touch information indicating coordinates at which these touches are accepted to the visual target display control unit 31.

(Target display control unit 31)
The visual target display control unit 31 controls the visual target display unit 2 to display the visual target for the presentation target selected by the presentation target selection instruction in each partial region selected by the partial region selection instruction. The target display control unit 31 specifies a partial area based on the coordinates of the touch information representing the partial area selection instruction in the touch information from the reception unit 301 and based on the coordinates of the touch information representing the presentation target selection instruction. To identify the subject to be presented. The optotype display control unit 31 controls the optotype display unit 2 so as to present the optotype to the specified presentation target by controlling the pixels included in the identified partial region. For example, the optotype display control unit 31 controls the pixels included in the partial area corresponding to the soft key S11, and changes the target of the target in the partial area to the right eye ER. At this time, the optotype display control unit 31 displays the background color of the optotype on the pixels provided with the first polarizing filter F1 among the pixels included in the partial region, and the second polarizing filter F2 A target is displayed on the provided pixels. Thereby, the visual target newly displayed in the partial area is presented to the right eye ER.

  The target display control unit 31 outputs information representing the newly displayed target partial area and the presentation target to the examination information display control unit 303. The examination information display control unit 303 causes the display unit 302 to display examination information representing the target of the newly displayed target.

(Main control unit 32)
The main control unit 32 controls each unit of the subjective optometry apparatus. The main control unit 32 includes a microprocessor, a RAM, a ROM, a hard disk drive, and the like. The main control unit 32 stores in advance a computer program for controlling each unit of the subjective optometry apparatus. The main control unit 32 controls each unit by executing this computer program. An example of the operation represented by this computer program is shown below.

[Operation]
FIG. 7 is a flowchart showing the operation of this embodiment.

(Step S101)
A partial area selection instruction for the reception unit 301 to select at least one of a plurality of partial areas and a presentation for selecting a target to be presented from the left eye to be examined EL, the right eye to be examined ER, and both eyes to be examined When an object selection instruction is accepted (Yes), the process proceeds to step S102. When the reception unit 301 has not received the partial region selection instruction and the presentation target selection instruction (No), the process returns to step S101.

(Step S102)
The reception unit 301 outputs touch information indicating the received partial area selection instruction and touch information indicating the presentation target selection instruction to the visual target display control unit 31. The target display control unit 31 displays the target corresponding to the presentation target selected by the presentation target selection instruction in each partial region selected by the partial area selection instruction.

(Step S103)
The target display control unit 31 outputs information indicating the partial area of the target and the presentation target that are newly displayed to the examination information display control unit 303. The examination information display control unit 303 causes the display unit 302 to display examination information representing the target of the newly displayed target.

(Step S104)
When the reception unit 301 further receives a partial region selection instruction and a presentation target selection instruction (Yes), the process returns to step S102. When the reception unit 301 does not further receive a partial region selection instruction and a presentation target selection instruction (No), the operation of this embodiment ends.

[effect]
The subjective optometry apparatus of this embodiment includes a target display unit 2, a user interface 30, and a target display control unit 31. The target display unit 2 includes a target display area C in which a plurality of partial areas are preset, and is configured to be able to display a target in each of the plurality of partial areas. The user interface 30 selects a partial area selection instruction for selecting at least one of a plurality of partial areas, and a target to be presented from the left eye to be examined EL, right eye to be examined ER, and both eyes to be examined. The presentation target selection instruction is accepted. The visual target display control unit 31 controls the visual target display unit 2 to display the visual target for the presentation target selected by the presentation target selection instruction in each partial region selected by the partial region selection instruction. As described above, the examiner instructs the subjective optometry apparatus with the desired partial area by the partial area selection instruction, and further performs the examination while instructing the subjective optometry apparatus with the desired presentation target by the presentation target selection instruction. Can do. Accordingly, it is possible to provide a technique for performing subjective optometry without the subject being aware of the target to be presented.

  The user interface 30 may include a display unit 302 and an examination information display control unit 303. The examination information display control unit 303 responds to acceptance of the partial area selection instruction and the presentation target selection instruction, and displays examination information representing the target of the target that is newly displayed in any of the plurality of partial areas. It is displayed on the display unit 302. Thereby, the examiner can perform the examination while grasping the presentation target of the newly displayed target every time the partial area and the presentation target are designated.

<Second Embodiment>
[Constitution]
FIG. 8 is a block diagram illustrating a configuration of a subjective optometry apparatus according to the second embodiment. The subjective optometry apparatus according to this embodiment is different from the subjective optometry apparatus according to the first embodiment in the configuration of the visual target display control unit 31 and the user interface 30. Hereinafter, content different from the subjective optometry apparatus according to the first embodiment will be mainly described.

  The visual target display control unit 31 includes a related information storage unit 311. The related information storage unit 311 stores in advance related information in which each of the plurality of partial areas is associated with the presentation target. FIG. 9 is a schematic diagram illustrating an outline of related information. In the related information, a presentation target is associated with each partial area. In the example of FIG. 9, the position of one eyelid G represents a partial area in the target display area C. The partial region associated with “L” is a partial region in which a visual target with the left eye EL to be presented is displayed. The partial region associated with “R” is a partial region in which a visual target for the right eye ER to be presented is displayed. The partial area associated with “B” is a partial area in which a visual target for both eyes to be examined is displayed. The related information storage unit 311 stores in advance a plurality of related information (T1, T2,..., Tn; n is an integer of 2 or more). The plurality of pieces of related information are associated with different sequences to be presented.

  The user interface 30 accepts a related information selection instruction for selecting one of a plurality of related information. The related information selection instruction is an instruction that serves as both the partial area selection instruction and the presentation target selection instruction of the first embodiment. FIG. 10 is a schematic diagram schematically showing a display example of the display unit 302 of this embodiment. The examination information display control unit 303 reads the related information from the related information storage unit 311 and causes the display unit 302 to display the related information. At this time, the examination information display control unit 303 may display the related information together with the target. The examination information display control unit 303 causes the display unit 302 to display a selection soft key S3 for receiving a related information selection instruction and a switching soft key S4 for receiving a touch operation for switching related information to be displayed on the display unit 302. .

  When accepting a touch operation on the switching soft key S4, the accepting unit 301 outputs touch information representing the touch operation to the examination information display control unit 303. When receiving the touch information, the examination information display control unit 303 reads other related information from the related information storage unit 311 and causes the display unit 302 to display the related information. Thus, the examiner can search for desired related information while switching and displaying the related information by a touch operation on the switching soft key S4.

  When accepting a touch operation on the selected soft key S3, the accepting unit 301 outputs touch information representing the touch operation to the examination information display control unit 303. This corresponds to the reception unit 301 receiving a related information selection instruction. The related information selection instruction is to select related information in which the partial area and the presentation target are associated. Therefore, the related information selection instruction corresponds to an instruction that serves both as a partial area selection instruction and a presentation target selection instruction.

  When receiving the touch information related to the related information selection instruction, the examination information display control unit 303 outputs identification information for identifying the selected related information to the target display control unit 31. When receiving the identification information, the target display control unit 31 controls the target display unit 2 based on the related information. The optotype display control unit 31 refers to the related information and identifies a presentation target associated with each partial region. The visual target display control unit 31 controls the pixels for each partial region so as to display the visual target for the specified presentation target. Thereby, in the visual target display area C, the visual target to the presentation target associated in the related information is displayed for each partial area.

[Operation]
FIG. 11 is a flowchart showing the operation of the subjective optometry apparatus of this embodiment.

(Step S201)
When the reception unit 301 receives a related information selection instruction (Yes), the process proceeds to step S202. When the reception unit 301 has not received a related information selection instruction (No), the process returns to step S201.

(Step S202)
The accepting unit 301 outputs touch information related to the related information selection instruction to the examination information display control unit 303. The examination information display control unit 303 outputs identification information for identifying the selected related information to the visual target display control unit 31. The optotype display control unit 31 refers to the related information and identifies a presentation target associated with each partial region.

(Step S203)
The visual target display control unit 31 controls the pixels for each partial region so as to display the visual target for the specified presentation target. Thereby, in the visual target display area C, the visual target to the presentation target associated in the related information is displayed for each partial area.

(Step S204)
When the reception unit 301 further receives a related information selection instruction (Yes), the process returns to step S202. When the receiving unit 301 does not further receive a related information selection instruction (No), the operation of this embodiment ends.

[effect]
The target display control unit 31 of the subjective optometry apparatus according to this embodiment includes a related information storage unit 311. The related information storage unit 311 stores in advance related information in which each of the plurality of partial areas is associated with the presentation target. The optotype display control unit 31 controls the optotype display unit 2 based on the related information. Accordingly, it is possible to provide a technique for performing an inspection while collectively specifying a presentation target for a plurality of partial areas.

  The related information storage unit 311 stores a plurality of related information in advance. The user interface 30 receives a related information selection instruction for selecting one of a plurality of related information as an instruction that serves both as a partial region selection instruction and a presentation target selection instruction. The visual target display control unit 31 controls the visual target display unit 2 based on the related information selected by the related information selection instruction. With this configuration, the examiner can select desired presentation information by searching for desired relevant information while switching and displaying the relevant information. Therefore, it is possible to provide a technique for performing an examination while specifying a presentation target for a plurality of partial areas in conjunction with an operation of selecting related information without selecting a partial area and a presentation target. .

<Modification of Second Embodiment>
[Constitution]
The subjective optometry apparatus of this modification is different from the subjective optometry apparatus according to the second embodiment in the configuration of the related information storage unit 311, the user interface 30, and the optotype display control unit 31. Hereinafter, contents different from those of the second embodiment will be mainly described.

  The related information storage unit 311 stores in advance a plurality of pieces of related information and order information indicating the application order of the related information. FIG. 12 is a schematic diagram illustrating an outline of the order information. In the order information, an application order k = 1, 2,..., N (n is an integer of 2 or more) is assigned for each related information.

  The user interface 30 receives a related information switching instruction for switching the related information to be applied. The related information switching instruction is an instruction that serves both as a partial area selection instruction and a presentation target selection instruction. FIG. 13 is a schematic diagram schematically showing a display example of the display unit 302 of this modification. The examination information display control unit 303 causes the display unit 302 to display an order soft key S5 for receiving a related information switching instruction.

  When accepting a touch operation on the order soft key S5, the accepting unit 301 outputs touch information representing the touch operation to the visual target display control unit 31. This corresponds to the reception unit 301 receiving a related information switching instruction. The related information switching instruction selects related information to which the next order is assigned. Therefore, the related information switching instruction corresponds to an instruction that serves both as a partial area selection instruction and a presentation target selection instruction.

  The target display control unit 31 specifies the related information to be applied next based on the order information in response to the reception of the related information switching instruction, and the target display unit 2 based on the specified related information. To control. For example, when receiving the touch information related to the related information switching instruction, the visual target display control unit 31 refers to the currently applied related information Tk and the order information to obtain the currently applied related information Tk. The assigned application order k is specified. The optotype display control unit 31 specifies related information “T (k + 1)” to which the next order “k + 1” of the application order k is assigned. The visual target display control unit 31 refers to the identified related information “T (k + 1)”, and identifies a presentation target associated with each partial region. The visual target display control unit 31 controls the pixels for each partial region so as to display the visual target for the specified presentation target. As a result, in the visual target display area C, the visual target to the presentation target associated in the related information “T (k + 1)” in the next order “k + 1” is displayed for each partial area.

  When the application order k assigned to the currently applied related information Tk is “n”, the visual target display control unit 31 specifies the related information T1 to which the application order “1” is assigned. That is, the related information T1 to the related information Tn are cyclically applied. As another example, the target display control unit 31 may randomly apply any one of the related information T1 to the related information Tn.

[Operation]
FIG. 14 is a flowchart showing the operation of the subjective optometry apparatus of this modification.

(Step S301)
When the reception unit 301 receives a related information switching instruction (Yes), the process proceeds to step S302. When the reception unit 301 has not received a related information switching instruction (No), the process returns to step S301.

(Step S302)
The accepting unit 301 outputs touch information related to the related information switching instruction to the visual target display control unit 31. The optotype display control unit 31 identifies the application order k assigned to the currently applied related information Tk by referring to the currently applied related information Tk and the order information. The optotype display control unit 31 specifies related information “T (k + 1)” to which the next order “k + 1” of the application order k is assigned.

(Step S303)
The visual target display control unit 31 refers to the identified related information “T (k + 1)”, and identifies a presentation target associated with each partial region.

(Step S304)
The visual target display control unit 31 controls the pixels for each partial region so as to display the visual target for the specified presentation target. Thereby, in the visual target display area C, the visual target to the presentation target associated in the related information is displayed for each partial area.

(Step S305)
When the reception unit 301 further receives a related information switching instruction (Yes), the process returns to step S302. When the receiving unit 301 does not further receive a related information switching instruction (No), the operation of this embodiment ends.

[effect]
The related information storage unit 311 of the subjective optometry apparatus according to this modification stores in advance a plurality of related information and order information indicating the application order of the related information. The user interface 30 receives a related information switching instruction for switching the related information to be applied as an instruction that serves both as a partial region selection instruction and a presentation target selection instruction. The target display control unit 31 specifies the related information to be applied next based on the order information in response to the reception of the related information switching instruction, and the target display unit 2 based on the specified related information. To control. Thereby, for example, the switching order of the presentation objects related to the predetermined examination procedure is stored in advance as the order information, and the plurality of partial areas are presented together by a simple operation such as a touch operation related to the related information switching instruction. A technique for performing an inspection while designating a target can be provided.

<Third Embodiment>
[Constitution]
FIG. 15 is a block diagram illustrating a configuration of a subjective optometry apparatus according to the third embodiment. The subjective optometry apparatus according to this embodiment is different from the subjective optometry apparatus according to the first embodiment in the configuration of the target display control unit 31. Hereinafter, content different from the subjective optometry apparatus according to the first embodiment will be mainly described.

  The target display control unit 31 includes a history storage unit 312. The history storage unit 312 stores the history of the target of the target displayed on each of the plurality of partial areas. The history storage unit 312 stores the target of the displayed target for each partial area. For example, each time the target display control unit 31 displays a target on the target display unit 2, the target display control unit 31 outputs information representing the partial area and information representing the presentation target to the history storage unit 312. Each time the history storage unit 312 receives information representing the partial area and information representing the presentation target from the visual target display control unit 31, the history storage unit 312 newly stores the presentation target for the partial area.

  FIG. 16 is a schematic diagram schematically illustrating a data structure of a history of a subject to be presented. The history storage unit 312 stores the display target of the displayed target for each of the partial areas (C1, C2,... Cm; m is an integer of 1 or more). In the example of FIG. 16, the presentation object shown on the upper side has an older history, and the presentation object shown on the lower side has a newer history. “L” indicates that the displayed target of the target is the left eye to be examined EL. “R” represents that the display target of the displayed target is the right eye ER. “B” represents that the target of the displayed target is both eyes to be examined. Each time the history storage unit 312 receives information representing the partial area and the presentation target from the target display control unit 31, the history storage unit 312 newly stores the presentation target on the lower side. Note that the history storage unit 312 may store a history of a presentation target for each examination date, for each subject, or for each examination date and each subject.

[Operation]
FIG. 17 is a flowchart showing the operation of the subjective optometry apparatus according to this embodiment.

(Step S401)
When the reception unit 301 receives a partial region selection instruction and a presentation target selection instruction (Yes), the process proceeds to step S102. When the reception unit 301 has not received the partial region selection instruction and the presentation target selection instruction (No), the process returns to step S101.

(Step S402)
The reception unit 301 outputs touch information indicating the received partial area selection instruction and touch information indicating the presentation target selection instruction to the visual target display control unit 31. The target display control unit 31 causes the target display control unit 31 to display the target for the presentation target selected by the presentation target selection instruction in each partial region selected by the partial region selection instruction.

(Step S403)
The target display control unit 31 outputs information representing each partial region selected by the partial region selection instruction and information representing the presentation target selected by the presentation target selection instruction to the history storage unit 312. The history storage unit 312 newly adds a presentation target for the partial area and stores it.

(Step S404)
When the reception unit 301 further receives a partial region selection instruction and a presentation target selection instruction (Yes), the process returns to step S102. When the reception unit 301 does not further receive a partial region selection instruction and a presentation target selection instruction (No), the operation of this embodiment ends.

[effect]
The target display control unit 31 of the subjective optometry apparatus of this embodiment includes a history storage unit 312. The history storage unit 312 stores the history of the target of the target displayed on each of the plurality of partial areas. Thereby, for example, when performing inspection over a plurality of inspection days for follow-up observation, it is possible to provide a technique for performing inspection while referring to past histories.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  For example, in the present specification, an example in which an object to be presented is changed by a deflection method that controls the polarization axis of light to the left and right eyes has been described. However, an R & G method, a shutter glasses method, a wavelength difference method, a parallax barrier method, a parallax integrator A configuration in which the subject to be presented may be changed by a method such as a message method.

DESCRIPTION OF SYMBOLS 1 Optometrist unit 1L Left to-be-examined eye unit 1R Right to-be-examined eye unit 2 Target display part 3 Operation apparatus 4 Optometrist table 5 Support column 6 Lateral arm 7 Operation arm 8 Chair 9 Examination window 9L Left to-be-examined ophthalmic window 9R Right-to-eye optometrist Window 10 Optical element 10L Optical element for left eye 10R Optical element for right eye 11 Driving mechanism 11L Driving mechanism for left eye 11R Right eye driving mechanism 30 User interface 31 Target display control unit 32 Main control unit 301 Reception Unit 302 Display unit 303 Examination information display control unit 311 Related information storage unit 312 History storage unit

Claims (4)

A plurality of partial areas including a preset target display area, and a target display unit capable of displaying a target in each of the plurality of partial areas;
A partial area selection instruction for selecting at least one of the plurality of partial areas, and a presentation target selection instruction for selecting a target to be presented from the left eye, the right eye, and both eyes A user interface that accepts
A target display control unit that controls the target display unit to display a target for the presentation target selected by the presentation target selection instruction in each partial region selected by the partial region selection instruction. And
The user interface is
A display unit;
Corresponding to the acceptance of the partial area selection instruction and the presentation target selection instruction, the presentation target of the visual target newly displayed in any of the plurality of partial areas is the left eye to be examined and the right eye to be examined. And a test information display control unit that displays test information indicating which of the two eyes to be examined is displayed on the display unit. The target display control unit
A related information storage unit that stores in advance related information in which each of the plurality of partial areas is associated with the presentation target;
The subjective optometry apparatus according to claim 1, wherein the target display unit is controlled based on the related information. The related information storage unit stores a plurality of the related information in advance,
The user interface accepts a related information selection instruction for selecting one of the plurality of related information as an instruction that serves as both the partial region selection instruction and the presentation target selection instruction.
The subjective eye optometry apparatus according to claim 2, wherein the target display control unit controls the target display unit based on the related information selected by the related information selection instruction. The subjective optometrist according to claim 1, wherein the optotype display control unit includes a history storage unit that stores a history of the presentation target of the optotype displayed in each of the plurality of partial areas. apparatus.

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