US20230284895A1 - Storage medium for storing optometry control program, subjective optometry system, and method for performing self-optometry - Google Patents

Storage medium for storing optometry control program, subjective optometry system, and method for performing self-optometry Download PDF

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US20230284895A1
US20230284895A1 US18/319,367 US202318319367A US2023284895A1 US 20230284895 A1 US20230284895 A1 US 20230284895A1 US 202318319367 A US202318319367 A US 202318319367A US 2023284895 A1 US2023284895 A1 US 2023284895A1
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optometry
self
information processing
processing device
visual target
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Taeko Horino
Hirohisa Terabe
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Nidek Co Ltd
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Nidek Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0016Operational features thereof
    • A61B3/0025Operational features thereof characterised by electronic signal processing, e.g. eye models
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0091Fixation targets for viewing direction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
    • A61B3/032Devices for presenting test symbols or characters, e.g. test chart projectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
    • A61B3/036Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters for testing astigmatism
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H80/00ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0016Operational features thereof
    • A61B3/0041Operational features thereof characterised by display arrangements

Definitions

  • the present disclosure relates to a non-transitory, computer readable, storage medium storing an optometry control program executed by a subjective optometry system, the subjective optometry system and a method for performing a self-optometry.
  • a subjective optometry device has been known for measuring optical characteristics such as refractive power of a subject eye by presenting an examination target to the subject eye through an optical element in front of the subject eye.
  • a subjective optometry device disclosed in JP 2020-18712 A includes a refractive power measuring unit, an examination target presenting unit, and a controller.
  • the refractive power measuring unit selects an optical element to be placed through an examination window from among a plurality of optical elements included in a correction optical system by a driver that switches the optical elements.
  • the examination target presenting unit switches the examination targets each of which is presented to the subject eye.
  • the controller detects a user operation on an operation panel and transmits a driving signal to the refractive power measuring unit and the examination target presenting unit based on the detected user operation.
  • One objective of the present disclosure is to provide a storage medium for storing a subjective optometry control program, a subjective optometry system, and a method for performing a self-optometry that enable it possible to perform a subjective optometry more smoothly.
  • a non-transitory, computer readable, storage medium for an optometry control program is for a subjective optometry system including a subjective optometry device and a first information processing device connected to the subjective optometry device.
  • the subjective optometry device includes a correction optical system that changes an optical characteristic of a visual target light flux presented to a subject eye and a visual target presentation unit that is configured to present a visual target to the subject eye.
  • the subjective optometry device subjectively measures an optical characteristic of the subject eye.
  • the program is executed by the first information processing device and comprises a self-optometry application program that realizes an application for causing a self-optometry to proceed automatically based on a response from an examinee.
  • the self-optometry application program when executed by a controller of the first information processing device, causes the first information processing device to perform: a self-optometry progress step of outputting, to the subjective optometry device, a presentation instruction signal for performing a presentation operation to present the visual target to the examinee in accordance with a progress procedure for a self-optometry that automatically proceeds; a response acquisition step of acquiring the response from the examinee who visually recognized the presented visual target; a correction value storing step of storing a correction value of the optical characteristic of the subject eye, the correction value being acquired based on the response acquired at the response acquisition step, the visual target that was presented by the subjective optometry device when the response was acquired, and the optical characteristic of the visual target light flux; and a self-optometry assistance step of executing an assistance operation to assist in a progress of the self-optometry when a problem occurs during the progress of the self-optometry.
  • a subjective optometry system includes: a subjective optometry device including a correction optical system that changes an optical characteristic of a visual target light flux presented to a subject eye and a visual target presentation unit that is configured to present a visual target to the subject eye, the subjective optometry device subjectively measuring an optical characteristic of the subject eye; and a first information processing device connected to the subjective optometry device.
  • the first information processing device includes a self-optometry application program that causes a self-optometry to proceed automatically based on a response from an examinee.
  • the self-optometry application program when executed, performs: a self-optometry progress step of outputting, to the subjective optometry device, a presentation instruction signal for performing a presentation operation to present the visual target to the examinee in accordance with a progress procedure for the self-optometry that automatically proceeds; a response acquisition step of acquiring the response from the examinee who visually recognized the presented visual target; a correction value storing step of storing a correction value of the optical characteristic of the subject eye, the correction value being acquired based on the response acquired at the response acquisition step, the visual target that was presented by the subjective optometry device when the response was acquired, and the optical characteristic of the visual target light flux; and a self-optometry assistance step of executing an assistance operation to assist in a progress of the self-optometry when a problem occurs during the progress of the self-optometry.
  • a method for performing a self-optometry includes: outputting, to a subjective operation device, a presentation instruction signal for performing a presentation operation to present a visual target to an examinee in accordance with a progress procedure for the self-optometry; acquiring a response from the examinee who visually recognized the presented visual target; storing a correction value of an optical characteristic of a subject eye, the correction value being acquired based on the acquired response, the visual target that was presented by the subjective optometry device when the response was acquired, and an optical characteristic of a visual target light flux presented to the subject eye; and executing an assistance operation to assist in a progress of the self-optometry when a problem occurs during the progress of the self-optometry.
  • a subject optometry can be executed performed smoothly.
  • FIG. 1 is a block diagram showing a configuration of a subjective optometry system 100 .
  • FIG. 2 is a flowchart of an optometry control process executed by a first information processing device 2 A.
  • FIG. 3 is a diagram showing an example of a self-optometry assistance screen in the embodiment.
  • FIG. 4 is a flowchart of a self-optometry assistance process executed during the optometry control process.
  • the subjective optometry system disclosed in the present disclosure includes the subjective optometry device and the first information processing device.
  • the subjective optometry device includes the correction optical system that changes an optical characteristic of a visual target light flux presented to the subject eye, and the target presentation unit that presents a visual target to the subject eye.
  • the subjective optometry device is used to subjectively measure the optical characteristic of the subject eye.
  • the first information processing device is an information processing device connected to the subjective optometry device (hereinafter, the first information processing device may also be referred to as a “connection device”).
  • the optometry control program disclosed herein includes a self-optometry application program.
  • the self-optometry application program is a program that realizes an application (a self-optometry application) that automatically proceed with an optometry based on responses input by the examinee.
  • the self-optometry application program executes a subjective optometry progress step, a response acquisition step, a correction value storage step, and a subjective optometry assistance step by the control unit of the first information processing device.
  • the first information processing device sequentially outputs a plurality of presentation instruction signals to the subjective optometry device for presenting the visual target to the examinee in accordance with at least a progress procedure along which the subjective optometry automatically proceeds (i.e., along the progress procedure).
  • the first information processing device may control the correction optical system and the target presentation unit to execute a plurality of examination items based on the progress procedure for the subjective optometry which automatically proceeds.
  • the first information processing device acquires responses inputted by the examinee who visually recognized the presented visual target.
  • the correction value storage step the first information processing device stores a correction value of the optical characteristic of the subject eye, which is obtained based on the answers acquired at the response acquisition step and the optical characteristics of the presented visual target and of the visual target light flux presented by the subjective optometry device.
  • the subjective optometry assistance step the first information processing device executes an assistance operation to assist in the auto-subjective optometry when a problem occurs during the auto-subjective optometry.
  • an appropriate eye examination for an examinee can be performed by executing the self-optometry application. Furthermore, if a problem occurs during the self-optometry, the assistance operation for assisting in the self-optometry is executed. In other words, a function for assisting in the progress of the self-optometry is included in functions of the self-optometry application. Therefore, for example, during the execution of the self-optometry application, at least one of assistance operations for the self-optometry, such as providing an advice from the examiner, is executed. Thus, the subjective optometry can be properly performed with reduced burden on the examiner.
  • the first information processing device that executes the optometry control program.
  • a personal computer PC
  • a server a mobile terminal, or a smartphone may be used as the first information processing device.
  • the first information processing device may be formed by combining two or more of a plurality of devices.
  • the first information processing device may be formed of a device, such as a personal computer, and a dedicated controller having a controlling unit and a memory.
  • the dedicated controller itself may serve as the first information processing device by having functions of a device such as a personal computer equipped with a CPU.
  • the storage device for storing the optometry control program may be appropriately selected.
  • the optometry control program may be stored in a memory built into the first information processing device or in a detachable storage device for the first information processing device.
  • the optometry control program may also be stored in a memory built into the above-described dedicated controller. Additionally, the optometry control program may be stored in multiple storage devices.
  • the self-optometry assistance step when a predetermined condition is met during the execution of the self-optometry, or when an instruction for executing the assistance operation is input, the assistance operation for assisting in the self-optometry may be executed. In this case, when the examinee is unable to perform the self-optometry due to certain circumstances, the assistance operation for the self-optometry is performed appropriately.
  • the conditions in the self-optometry for executing the assistance operation may be appropriately selected.
  • the control unit may determine that the condition for executing the assistance operation is met when a predetermined time has elapsed without receiving an input of a response from the examinee.
  • the control unit may determine that the condition for executing the assistance operation is met when a response is inappropriately input by the examinee.
  • the method for determining whether the response is inappropriate may be appropriately selected.
  • control unit may determine that the input response is inappropriate if the response does not meet a predetermined response condition (e.g., if a response different from candidate responses expected to receive from the examinee is input, if the same responses are input consecutively more than a predetermined number of times, or if the number of responses exceeds the number of responses expected to be input from the examinee).
  • a predetermined response condition e.g., if a response different from candidate responses expected to receive from the examinee is input, if the same responses are input consecutively more than a predetermined number of times, or if the number of responses exceeds the number of responses expected to be input from the examinee.
  • the assistance operation executed at the self-optometry assistance step may include a call operation for calling for an examiner.
  • the examiner is called so that a subsequent examination can properly proceed.
  • the self-optometry assistance step may include a manual progress step in which a presentation instruction signal for advancing at least a part of the progress procedure is outputted to the subjective optometry device in response to receiving an instruction input from an examiner.
  • the examiner may manually advance at least an examination step at which a problem occurred among the progress procedure that are planned to be performed during the self-optometry. Therefore, the optometry for the examinee can be more appropriately supported.
  • the self-optometry assistance step may include a correction value modification step to modify at least one of correction values stored during the self-optometry in response to receiving an instruction inputted by an examiner.
  • a correction value modification step to modify at least one of correction values stored during the self-optometry in response to receiving an instruction inputted by an examiner.
  • the correction value can be modified based on the examiner's decision. Therefore, the optometry for the examinee may smoothly proceeds.
  • the self-optometry assistance step may include a procedure omission step to omit at least a part of the progress procedure in response to receiving an instruction inputted by an examiner.
  • the examiner can omit an unnecessary step from the predetermined steps. Therefore, the optometry for the examinee can proceed smoothly.
  • the method for inputting the instruction by the examiner to omit at least a part of the steps may be appropriately selected.
  • the examiner may input, into the first information processing device, a selection instruction for omitting a test from among the multiple tests executed in accordance with the progress procedure.
  • the control unit of the first information processing device may omit the selected test from the tests.
  • the examiner may input, into the first information processing device, a timing for resuming the self-optometry, which is temporarily stopped, as a timing subsequent to the omitted step.
  • the control unit of the first information processing device may omit a part of the steps by resuming the self-optometry from the inputted timing which is set after the omitted step.
  • the self-optometry assistance step may include a proxy response acquisition step.
  • the control unit acquires, in response to an instruction inputted by an examiner, a response from an examinee who has visually recognized a visual target that was presented in accordance with the progress procedure at the self-optometry step.
  • the examiner can hear the responses from the examinee who has recognized the visual target and enter the responses heard from the examinee. Therefore, even if the examinee is not familiar with a way of responding in the self-optometry, the examiner can assist in the self-optometry properly by entering the responses heard from the examinee on behalf of the examinee.
  • the self-optometry assistance step may include a continuous resumption step in which the self-optometry that has been temporarily stopped resumes from the next step after the step for which the optometry has already been completed (for example, a completed test). In this case, the self-optometry resumes from the next step after the step for which the optometry has already been completed. Therefore, even after the assistance for the self-optometry has been completed, the self-optometry can properly continue along the progress procedure.
  • the self-optometry assistance step may include a designated resumption step in which the self-optometry that has been temporarily stopped resumes from a step designated by the examiner (for example, a designated test).
  • the examiner can resume the self-optometry from the step designated by him/her when a problem that occurred during the self-optometry is resolved, etc. Therefore, burden on the examiner for assisting in the optometry can be prevented from excessively increasing.
  • the progress procedure for the self-optometry may define multiple tests (examinations) performed on the examinee and an order in which the multiple tests are conducted.
  • multiple tests may be performed sequentially in accordance with the progress procedure.
  • the multiple tests for the examinee can be done automatically and appropriately.
  • the examiner may perform suitable assistance for tests that are determined by the examiner to require for assistance among the multiple tests (for example, a test where a proper correction value cannot be acquired in the self-optometry).
  • the self-optometry assistance step may include a step for displaying the progress procedure on a display unit.
  • the display unit may be located in a facility where the examiner is waiting, may be located in a different facility than a facility where the self-optometry device is located, or may be located in the same facility where the self-optometry device is located.
  • an instruction for designating a step from which the self-optometry will resume hereinafter referred to as a “resumption step” for resuming the self-optometry may be accepted through an operation on the progress procedure displayed on the display unit.
  • the examiner can designate the resumption step to resume the self-optometry while properly recognizing the details and progress status of the progress procedure displayed on the display unit.
  • a specific method for accepting the input of the resumption step through an operation on the displayed progress procedure can be appropriately selected.
  • a touch panel may be disposed in a display area of the display unit.
  • the control unit may treat, as the resumption step designated by the examiner, the step (for example, a specific test) corresponding to the position on the touch panel where the touch panel is operated among the displayed progress procedure.
  • a mouse or the like for moving a pointer within the display area of the display unit may be provided.
  • the control unit may treat the step corresponding to the position of the pointer on the displayed progress procedure as the resumption step designated by the examiner.
  • the control unit may display, on the progress procedure, at least one of the step currently being executed or the step during which a problem occurred among the entire progress procedure (e.g., multiple tests included in the progress procedure).
  • the examiner can properly recognize the progress status of the self-optometry system by the displayed progress procedure.
  • the self-optometry that was temporarily stopped leads to obtaining various benefits.
  • the cross-cylinder test which is one of the tests performed by the subjective optometry system
  • two sets of dots are presented to an examinee.
  • the examinee would be able to recognize only one of the two sets of dots. In this case, the examinee would not be able to conduct the self-optometry.
  • the examiner can make an advice to the examinee to adjust the position of the subject eye relative to the examination window, for example, to assist in the progress of the cross-cylinder test. Then, the examinee can resume the self-optometry by himself/herself.
  • resuming the temporarily stopped self-optometry leads to useful effects for both the examiner and the examinee.
  • the self-optometry assistance step may be executed based on an instruction inputted to the second information processing device that is connected to the first information processing device via a network. In this case, even if the examiner is located at a remote location away from the examinee, the examiner can properly assist the examinee in the self-optometry from the remote location by inputting instructions to the second information processing device.
  • the control unit of the first information processing device may output, to the second information processing device, an instruction to execute a call operation to call for the examiner.
  • the examiner can easily recognize that a problem occurred during the progress of the self-optometry.
  • the self-optometry assistance step may be executed in response to instructions directly inputted to the first information processing device (for example, instructions inputted to the operation unit of the first information processing device). That is, the examiner located at the location where the subjective optometry device and the first information processing device are installed may input instructions to execute the self-optometry assistance step.
  • the operation unit (examiner's controller) of the first information processing device used for inputting instructions by the examiner may be a dedicated controller provided in the subjective optometry device, or a general-purpose user interface such as a mouse or a tablet.
  • the number of the second information processing devices may be one or more. Similar to the first information processing device, various devices (such as PCs, mobile terminals, or smartphones) can be used as the second information processing device.
  • the second information processing device may be connected, in advance, to the first information processing device when the self-optometry is performed, or may be connected to the first information processing device after a problem occurs during the self-optometry.
  • each of the control units of the first and second information processing devices may perform a remote conversation step to assist in conversation between the examiner and the examinee by transmitting and receiving at least audio data (which may include both audio and image data) between the examiner and the examinee.
  • the examiner located remotely can appropriately assist in the self-optometry by recognizing the examinee's situation through the conversation.
  • a subjective optometry system 100 of the present embodiment includes a subjective optometry device 1 and a first information processing device 2 A.
  • the subjective optometry device 1 is used to subjectively measure an optical characteristic of eyes of an examinee.
  • the optical characteristic of the subject eye measured by the subjective optometry device 1 of this embodiment is a refractive power of the eyes.
  • the measured refractive power may be at least one of the spherical power, cylindrical power, and astigmatism axis angle of the subject eye.
  • the first information processing device 2 A is connected to the subjective optometry device 1 .
  • the first information processing device 2 A may also be referred to as a “connection device”.
  • the first information processing device 2 A is connected to a second information processing device 2 B, which is another information processing device, via a network 5 . That is, the first information processing device 2 A of this embodiment may be remotely accessed by the second information processing device 2 B.
  • a second information processing device 2 B which is another information processing device
  • the subjective optometry device 1 includes an eye refractive power measurement unit 10 , a visual target presentation unit 15 , and a relay unit 19 .
  • the eye refractive power measurement unit 10 includes a correction optical system 11 and a driver 12 .
  • the correction optical system 11 changes the optical characteristic of a visual target light flux presented to the subject eye. Specifically, the correction optical system 11 changes at least one of the spherical power, cylindrical power, astigmatic axis angle, polarization characteristic, and aberration amount of the visual target light flux.
  • the correction optical system 11 switchably selects an optical element to be arranged in an examination window in front of the subject eye among multiple optical elements to change the optical characteristics of the visual target light flux.
  • a lens disk for the left eye and a lens disk for the right eye, each having multiple optical elements arranged in a common circumferential direction, are used in the correction optical system 11 .
  • Each of the lens disks for the left eye and the right eye may be formed of a single lens disk or a plurality of lens disks.
  • the optical elements include, but are not limited to, spherical lenses, cylindrical lenses, cross-cylinder lenses, rotary prisms, and wavefront modulation elements.
  • the driver 12 drives the correction optical system 11 to change the optical characteristics of the visual target light flux.
  • the driver 12 drives the correction optical system 11 to switch the optical elements in the examination window by rotating both the lens disks for the left eye and the right eye.
  • a step motor or the like may be used for the driver 12 .
  • the driver 12 operates in response to a driving signal.
  • the visual target presentation unit 15 presents a visual target (for example, a Landolt ring or at least one of characters) to the subject eye and switches visual targets presented to the subject eye.
  • the visual target presentation unit 15 includes a visual target presentation portion 16 and a driver 17 .
  • the visual target presentation portion 16 presents one of the visual targets to the subject eye. Examples of the visual target presentation portion 16 include a space-saving visual target projecting device that projects a visual target onto the subject eye via a concave mirror, a chart projector that projects the visual target onto a screen, and a display that displays the visual target.
  • the visual target presentation portion 16 is positioned to be away a particular distance (in a meaning of an optical system) from the subject eye and is placed at the same height as the eye refractive power measurement unit 10 .
  • the driver 17 drives the visual target presentation portion 16 to switch the inspection visual targets presented to the subject eye.
  • the driver 17 operates in accordance with driving signals.
  • the relay unit 19 relays driving signals between the first information processing device 2 A and the drivers 12 , 17 .
  • a system for the driving signals output from the first information processing device 2 A and a system for the driving signals for controlling at least one of the drivers 12 and 17 are different.
  • the relay unit 19 in this embodiment converts the driving signals received from the first information processing device 2 A into driving signals for controlling the drivers 12 and 17 , and transmits them to the drivers 12 and 17 .
  • the relay unit 19 when the relay unit 19 receives one driving signal from the first information processing device 2 A so as to drive both the driver 12 and the driver 17 together, the relay unit 19 converts the received one driving signal into two driving signals to drive both the drivers 12 and 17 , and transmits them to the drivers 12 and 17 .
  • the first and second information processing devices 2 A and 2 B can be any of various information processing devices capable of processing various types of information.
  • personal computers referred to as “PCs” hereinafter
  • information processing devices that serve as the first and second information processing devices 2 A and 2 B in this embodiment are not necessarily limited to the PCs.
  • a server, mobile terminal, or smartphone may be used as at least one of the first and second information processing devices 2 A and 2 B.
  • At least one of the first and second information processing devices 2 A and 2 B may be formed of multiple devices.
  • the first information processing device 2 A may be formed of a personal computer and a dedicated controller having a controller and storage device.
  • the first information processing device 2 A and the second information processing device 2 B are communicatably connected to each other via the network (e.g., the Internet) 5 .
  • An example shown in FIG. 1 is a case where a plurality of second information processing devices 2 B are connected to the single first information processing device 2 A. However, one second information processing device 2 B may be connected to one first information processing device 2 A. Additionally, one second information processing device 2 B may be connected to a plurality of first information processing devices 2 A.
  • the first information processing device 2 A is installed at a location where a subjective optometry is conducted for an examinee (e.g., an eyeglasses store or hospital).
  • the first information processing device 2 A is equipped with a CPU 21 A and a storage device 22 A.
  • the CPU 21 A is a control unit (controller) that controls the first information processing device 2 A.
  • the storage device 22 A stores programs and various types of data. In this embodiment, the optometry control program is stored in the storage device 22 A.
  • the first information processing device 2 A is communicatably connected to the subjective optometry device 1 (more specifically, to the relay unit 19 of the subjective optometry device 1 ).
  • Various standards such as LAN, can be used for connection between the first information processing device 2 A and the subjective optometry device 1 .
  • the first information processing device 2 A is connected to an objective optometry device 3 .
  • the objective optometry device 3 measures optical characteristics of the subject eye (such as spherical power, cylindrical power, and astigmatic axis angle) objectively.
  • Various standards such as LAN can be used for connection between the first information processing device 2 A and the objective optometry device 3 .
  • the objective optometry device 3 may also be connected to the relay unit 19 .
  • the measurement results obtained from the objective optometry device 3 can be stored in a storage device of the relay unit 19 .
  • the first information processing device 2 A is connected to a camera 31 A, a microphone 32 A, a speaker 33 A, an operation unit 34 A, and a display unit 35 A.
  • the camera 31 A captures images. Specifically, in this embodiment, the camera 31 A is used to capture moving images of the examinee.
  • the microphone 32 A converts sound into audio signals and outputs them.
  • the speaker 33 A converts audio signals into sound.
  • the operation unit 34 A is operated by a user (such as an examinee) to input various instructions.
  • a keyboard, a mouse, and a touch panel can be used, or a dedicated operation unit (such as a joystick) suitable for inputting responses for the subjective optometry can be used.
  • the display unit 35 A displays various images. Various devices capable of displaying images (such as a monitor, a display, and a projector) can be used as the display unit 35 A.
  • Each of the second information processing devices 2 B is located in a facility with an examiner (for example, an eyewear store employee who is knowledgeable in optometry using the subjective optometry device 1 , a doctor, or a nurse, etc.) who is capable of performing an optometry using the subjective optometry device 1 .
  • Each of the second information processing devices 2 B includes a CPU 21 B and a storage device 22 B.
  • the CPU 21 B is a control unit (controller) that controls the second information processing device 2 B.
  • the storage device 22 B is capable of storing programs and various data, etc.
  • a camera 31 B, a microphone 32 B, a speaker 33 B, an operation unit 34 B, and a display unit 35 B are connected to the second information processing device 2 B.
  • Various devices can be used as these devices, similar to the devices connected to the first information processing device 2 A as described above.
  • the optometry control program for executing an optometry control process (refer to FIG. 2 ) is stored in the storage device 22 A of the first information processing device 2 A.
  • the optometry control program includes a drive control application program for executing a drive control application and a self-optometry application program for executing a self-optometry application.
  • the drive control application controls operation of the subjective optometry device 1 by transmitting control signals to the subjective optometry device 1 .
  • the self-optometry application automatically conducts the optometry by the subjective optometry device 1 based on responses inputted from an examinee.
  • the drive control application program and the self-optometry application program may be separately formed and prepared, or may be incorporated into a single program.
  • the subjective optometry system 100 of the present embodiment can perform both a self-optometry and a remote-optometry.
  • the self-optometry is an eye examination performed by the self-optometry application. In other words, during the self-optometry, the eye examination proceeds automatically based on responses inputted by an examinee.
  • a self-optometry assistance process is executed to assist the examinee in the progress of the self-optometry.
  • the self-optometry assistance process can also be executed in response to an instruction signal inputted to one of the second information processing devices 2 B that is located in a remote location. Therefore, even if a problem with the progress of the self-optometry occurs, the eye examination can smoothly continue.
  • the remote-optometry is an eye examination performed in response to an instruction signal inputted to the second information processing device 2 B.
  • the self-optometry will be mainly described.
  • the optometry control process includes processing for controlling the self-optometry, processing for assisting in the self-optometry, and the like.
  • the CPU 21 A of the first information processing device 2 A executes the optometry control process as illustrated in FIG. 2 according to the optometry control program.
  • the optometry control process of the present embodiment is performed when communication (e.g., remote access) between one or more second information processing devices 2 B and the first information processing device 2 A has been established.
  • communication between the first information processing device 2 A and one or more of the second information processing devices 2 B may also be established during the execution of the optometry control process (e.g., at the timing of starting a self-optometry assistance process illustrated in FIG. 4 ).
  • the communication method between the first information processing device 2 A and the second information processing device 2 B may also be appropriately selected.
  • remote access service RAS
  • the CPU 21 A acquires results of an externally-conducted objective optometry (S 1 ).
  • a LAN or the relay unit 19 is used to connect to the external objective optometry device 3 (refer to FIG. 1 ) to acquire the results of externally-conducted objective optometry fora same examinee.
  • the CPU 21 A may also acquire results of the externally-conducted objective optometry for the same examinee using, for example, a detachable memory or the network 5 .
  • results of the externally-conducted objective optometry may also be inputted by the user via the operation unit 34 A, etc. If there are no results of the externally-conducted objective optometry for the same examinee, the process at S 1 may be skipped.
  • the CPU 21 A sets a progress procedure for the self-optometry (S 3 ).
  • An example of a part of the progress procedure for the self-optometry used in the subjective optometry system 100 of this embodiment is displayed in a progress procedure display field 52 shown in FIG. 3 (the progress procedure for the right eye is only shown in FIG. 3 ).
  • the progress procedure used in this embodiment sets (i) multiple tests (multiple examinations) executed for the examinee and (ii) the order in which these tests are executed. For example, in the progress procedure shown in FIG.
  • R/G test (S), cross-cylinder test (A), cross-cylinder test (C), R/G test, and VA test are executed for the left eye of the examinee in the following order: R/G test (S), cross-cylinder test (A), cross-cylinder test (C), R/G test, and VA test.
  • R/G test (S) the spherical power of the subject's eye is measured.
  • cross-cylinder test (A) the axis angle of astigmatism of the subject's eye is measured.
  • cross-cylinder test (C) the degree of astigmatism of the subject's eye is measured.
  • the subsequent R/G test it is confirmed whether an adjustment function of the subject's eye properly worked for the executed tests.
  • VA test the maximum visual acuity of the subject's eye is measured.
  • the progress procedure for the self-optometry is set based on the results of the objective optometry (e.g., the refractive power measured for the subject eye (i.e., spherical power, astigmatic degree, and astigmatic axis angle)).
  • the type and size of the optical element to be first placed in the examination window of the correction optical system 11 and the type of the visual target to be presented on the display unit 16 may be set based on the results of the objective optometry.
  • a procedure without the test related to astigmatism e.g., the cross-cylinder test (A) and the cross-cylinder test (C)
  • a default process may be set.
  • the CPU 21 A determines the presentation operation of the visual target to be executed next time by the subjective optometry device 1 based on the progress procedure set at S 3 and the progress status of the self-optometry and outputs a presentation instruction signal (i.e., a driving signal) for executing the determined presentation operation to the subjective optometry device 1 (S 5 ).
  • a presentation instruction signal i.e., a driving signal
  • at S 5 of this embodiment at least one of the optical elements to be placed in the examination window of the correction optical system 11 and the visual target to be presented on the visual target presentation portion 16 is determined as the next presentation operation.
  • a driving signal for at least one of the drivers 12 and 17 is transmitted to the subjective optometry device 1 to execute the determined operation. Note that when transmitting the driving signal to the subjective optometry device 1 , the CPU 21 A outputs a guidance voice corresponding to examination contents from the speaker 33 A. Therefore, the examinee will see the presented visual target after appropriately understanding the contents of the examination.
  • the driving signal is transmitted from the first information processing device 2 A to the drivers 12 and 17 through the relay unit 19 described above (see FIG. 1 ). Therefore, there is no need for a dedicated controller through which signals transmitted from the first information processing device 2 A pass. Thus, signal processing by such a dedicated controller can be omitted, leading to smoother execution of the optometry.
  • the examinee understands the test contents through the guidance audio, visually recognizes the presented visual target displayed on the subjective optometry device 1 , and enters its response to the visually recognized visual target into the first information processing device 2 A.
  • the dedicatedly-manufactured operation unit 34 A suitable for entering responses for the subjective optometry is operated by the examinee to input his/her responses.
  • responses may also be input using a general-purpose operation unit 34 A, such as a mouse, touch panel, or keyboard.
  • Responses may also be inputted using voice signals converted by the microphone 32 A.
  • the CPU 21 A determines whether a response has been inputted from the examinee (S 7 ).
  • a response has been inputted (S 7 : YES)
  • the input response and the optical correction value (measurement value) for the specific optical characteristics of the subject eyes are stored in the storage device 22 A (S 8 ).
  • the optical correction value for the optical characteristics of the subject eyes is acquired based on the input response at S 7 , the visual target presented to the examinee when the response was made, and the optical characteristics of the optical element (i.e., the optical characteristics of the visual target light flux) set within the examination window of the correction optical system 11 .
  • the process returns to S 5 and the self-optometry continues in accordance with the progress procedure.
  • the CPU 21 A determines the next visual target presentation operation so that the visual target to be presented next by the visual target presentation portion 16 is an visual target with a visual acuity value one step higher than the previously presented visual target (e.g., a visual target being one step smaller in size).
  • CPU 21 A determines the next visual target presentation operation so that the visual target presented by the visual target presentation portion 16 is a visual target with a visual acuity value one step lower than the previously presented visual target (e.g., a visual target being one step larger in size). Also, along with switching of the visual target, the CPU 21 A may determine, as the next visual presentation operation, the correction degree of the optical element placed in the examination window of the correction optical system 11 .
  • a predetermined condition that indicates the self-optometry inappropriately proceeds is met. For example, in this embodiment, when a predetermined time has elapsed without a response being inputted from the examinee since the presentation instruction signal was transmitted at S 5 , the predetermined condition is determined to be met. Furthermore, even if the response inputted by the examinee is inappropriate (e.g., a response other than requested candidate responses is inputted, the same response is inputted continuously more than a predetermined number of times, or more responses than the number requested are inputted), the predetermined condition is determined to be met. If it is determined that the predetermined condition is met (S 11 : YES), the self-optometry assistance process is executed (S 13 ).
  • the CPU 21 A determines whether an instruction for executing an assistance operation for the self-optometry has been inputted by the examinee (S 12 ).
  • the examinee can input the instruction for executing the assistance operation for the self-optometry by operating a help button provided on the dedicated controller or a help button image visually displayed on the display unit 35 A. If the instruction is not inputted (S 12 : NO), the process returns to S 7 . If the instruction for executing the assistance operation is inputted (S 12 : YES), the self-optometry assistance process is executed (S 13 ).
  • the CPU 21 A performs an examiner call process (S 21 ).
  • the CPU 21 A transmits an examiner call instruction via the network 5 to one or more second information processing devices 2 B for which remote access to the first information processing device 2 A has been established (S 4 ).
  • the examiner call instruction is an instruction for causing the second information processing device 2 B to perform a calling action to request an examiner for assistance in the self-optometry.
  • the calling action may be performed by at least one of, for example, outputting sound or displaying an image.
  • the CPU 21 A determines whether there is a response from the examiner, who is a user of the second information processing device 2 B (S 22 ). If there is no response from the examiner from any one of the second information processing devices 2 B (S 22 : NO), assistance by the examiner in the self-optometry is not currently available, so the determination process at S 22 is repeated and the system waits. If a user of one of the second information processing devices 2 B is in a state where he/she can assist in the self-optometry and inputs a response instruction to the one of the second information processing devices 2 B (S 22 : YES), the process proceeds to S 23 .
  • the CPU 21 A starts communication by transmitting and receiving voice data between the examiner using the second information processing device 2 B and the system, thus initiating a conversation process (S 23 ).
  • the examiner and the examinee can talk, and the assistance process of the self-optometry described below is executed.
  • the CPU 21 A transmits voice data inputted from the microphone 32 A to the second information processing device 2 B.
  • the CPU 21 A receives the voice data inputted from the second information processing device 2 B through the microphone 32 B and outputs it to the speaker 33 A.
  • the CPU 21 A may also transmit and receive image data to/from the second information processing device 2 B along with the voice data.
  • the CPU 21 A may transmit the image data inputted from the camera 31 A to the second information processing device 2 B.
  • the CPU 21 A may receive the image data inputted from the second information processing device 2 B through the camera 32 B and display it on the display unit 35 A.
  • the CPU 21 A displays a self-optometry assistance screen image (see FIG. 3 ) on the display unit 35 B of the second information processing device 2 B used by the examiner who is assisting in the self-optometry (S 24 ).
  • the self-optometry assistance screen image in this embodiment includes an operation image area 50 and a progress procedure display area 51 .
  • an operation image including information on the optical characteristics of the visual target light flux presented to the subject eye In the operation image area 50 , an operation image including information on the optical characteristics of the visual target light flux presented to the subject eye.
  • values relating to the optical characteristics of the visual target light flux presented to the subject eye are displayed for each type of optical characteristic.
  • the examiner can indicate the value for the desired type of optical characteristic (spherical power, cylindrical power, and astigmatic axis angle, etc.) by operating various buttons and values on the operation image area 50 through an operation device such as a touch panel or a mouse.
  • a correction value of the optical characteristic displayed on the operation image area is a measured value of the optical characteristic of the subject eye.
  • the progress procedure display area 51 is displayed not only on the display unit 35 B connected to the second information processing device 2 B but also on the display unit 35 A connected to the first information processing device 2 A.
  • the progress procedure display area 51 in this embodiment includes the progress procedure display field 52 , an elapsed time display field 54 , a left/right eye display field 55 , a help button 56 , and a top button 57 .
  • the progress procedure set for the ongoing self-optometry is displayed in the progress procedure display field 52 .
  • the test currently being performed among the entire progress procedure i.e., multiple tests included in the progress procedure
  • the elapsed time display field 54 displays elapsed time since the start of the ongoing self-optometry.
  • the left/right eye display field 55 displays which eye (left or right) of the examinee at the currently performed step among the entire progress procedure is a targeted eye for examination.
  • the help button 56 is operated by the examinee to input an instruction for executing the assistance operation of the self-optometry.
  • the top button 57 is operated to return the screen displayed in the progress procedure display area 51 to the initial page of the self-optometry application.
  • the voice signal inputted from the microphone 32 A to the first information processing device 2 A is converted into sound by the speaker 33 B of the second information processing device 2 B.
  • the voice signal inputted from the microphone 32 B to the second information processing device 2 B is converted into sound by the speaker 33 A of the first information processing device 2 A Therefore, the examiner and the examinee can communicate during the assistance operation of the self-optometry.
  • the examiner using the second information processing device 2 B can input various instructions to assist in operation of the self-optometry using at least one of the operation unit 34 B and the microphone 32 B.
  • the CPU 21 A determines whether manual assistance by the examiner is being performed (S 26 ).
  • either indirect assistance or manual assistance is selected as a method for assisting in operation of the self-optometry by the examiner.
  • the indirect assistance is a method in which the examiner indirectly assists in the self-optometry while the self-optometry by the self-optometry application is being performed in accordance with the progress procedure set in S 3 .
  • the manual assistance is a method for assisting in operation of the self-optometry by directly advancing the examination in response to instructions inputted by the examiner instead of following the self-optometry procedure.
  • the examiner can control the first information processing device 2 A to execute either the indirect assistance or the manual assistance in various ways.
  • the indirect assistance is set to be executed first when the self-optometry assistance process starts.
  • the indirect assistance may be switched to the manual assistance by inputting an operation instruction, a correction instruction for modifying the correction value, or an omitting instruction for omitting the procedure into the subjective optometry device 1 through various buttons or the like displayed in the operation image area 50 .
  • the method for switching from the indirect assistance to the manual assistance can be appropriately selected.
  • a button for switching between the indirect assistance and the manual assistance may be provided on the self-optometry assistance screen.
  • the CPU 21 A determines whether a response by the examinee who visually recognized the presented visual target has been inputted by the examiner or the examinee (S 27 ).
  • the examiner can input the response heard from the examinee into the second information processing device 2 B by operating the operation unit 34 B connected to the second information processing device 2 B.
  • the response inputted to the second information processing device 2 B is transmitted to the first information processing device 2 A Therefore, even if the examinee is not familiar with a way of responding for the self-optometry, assisting in the self-optometry can be appropriately performed.
  • the examinee can also input his/her response by himself/herself (see FIG. 2 ). Therefore, once the examinee understands the way of responding from an advice by the examiner, it is also possible for the examinee to input the response himself/herself and proceed with the optometry. However, during the execution of the indirect assistance, either the first information processing device 2 A or the second information processing device 2 B may accept the response.
  • the process proceeds to S 38 .
  • the response of the examinee is inputted into the first information processing device 2 A or the second information processing device 2 B (S 27 : YES)
  • the inputted response and the optical measurement value of the subject eye are stored in the storage device 22 A, similar to S 8 (see FIG. 2 ) (S 28 ).
  • the CPU 21 A determines the presentation operation of the visual target to be executed next at the subjective optometry device 1 according to the progress procedure set at S 3 (see FIG.
  • the CPU 21 A determines whether an operation instruction for allowing the examiner to manually proceed with at least a part of the progress procedure has been inputted by the examiner (S 31 ).
  • the examiner can determine the operation instruction for the self-optometry device 1 , such as an instruction for an arrangement operation of the optical element in the correction optical system 11 and an instruction for a display operation of the visual target in the display unit 16 , based on the contents displayed on the self-optometry assistance screen image (see FIG. 3 ) or the conversation with the examinee.
  • the examiner inputs the determined operation instruction to the second information processing device 2 B via the operation unit 34 B or the like.
  • the inputted operation instruction is acquired by the first information processing device 2 A via the network 5 .
  • the CPU 21 A transmits a display instruction signal (i.e., a driving signal) to the subjective optometry device 1 to execute the instructed operation (S 32 ).
  • the CPU 21 A determines whether an instruction for modifying the correction value stored at S 8 (see FIG. 2 ) or S 28 by the self-optometry has been inputted (S 33 ). If the examiner determines that the correction value (i.e., the measured value) displayed on the self-optometry assistance screen image (see FIG. 3 ) needs to be modified, the examiner inputs a modification instruction for the correction value necessary for modification to the second information processing device 2 B via the operation unit 34 B or the like. The inputted modification instruction is acquired by the first information processing device 2 A via the network 5 . When the modification instruction is inputted and acquired (S 33 : YES), the CPU 21 A modifies the correction value according to the instruction (S 34 ).
  • the CPU 21 A determines whether an omission instruction for omitting at least a part of the progress procedure (in this embodiment, at least one of multiple tests) has been inputted (S 35 ).
  • the CPU 21 A omits the instructed test from the progress procedure (S 36 ). Then, the process proceeds to S 38 .
  • the CPU 21 A determines whether a series of the optometry for the examinee has been completed (S 38 ). For example, the CPU 21 A may determine that the series of the optometry has been completed if the self-optometry performed according to the progress procedure has been completed. Alternatively, the CPU 21 A may determine that the series of the optometry has been completed when an instruction to end the optometry for the examinee has been inputted. When the series of the optometry has been completed (S 38 : YES), the process ends.
  • the CPU 21 A determines whether a continuous resumption instruction for the self-optometry has been inputted (S 39 ).
  • the continuous resumption instruction refers to an instruction to resume the self-optometry from the next step after the step for which the optometry has already been completed among the progress procedure set at S 3 (see FIG. 2 ).
  • the CPU 21 A may determine that the continuous resumption instruction has been inputted if a continue button (not shown) has been operated by the examinee.
  • the CPU 21 A sets a resumption step for the self-optometry as a next step subsequent to the step for which the optometry has already been completed among the progress procedure (S 40 ), and the process returns to the optometry control process (see FIG. 2 ).
  • the self-optometry is resumed from the resumption step set in S 40 .
  • the instruction to continue is not inputted (S 39 : NO)
  • the process proceeds to S 42 .
  • the CPU 21 A determines whether a designated resumption instruction for the self-optometry has been inputted (S 42 ).
  • the designated resumption instruction is an instruction to resume the self-optometry from a step designated by the examiner among the progress procedure set at S 3 (see FIG. 2 ).
  • the examiner can input the designated resumption instruction by designating the resumption step for resuming the self-optometry on the progress procedure displayed in the progress procedure display field 52 in the self-optometry assistance screen image (see FIG. 3 ).
  • the examiner can input the designated resumption instruction using a mouse or a touch panel.
  • a designated resumption instruction button (i.e., a reset button) for removing the results of the self-optometry that had been done according to the process procedure and restarting the self-optometry from the first step of the progress procedure may be disposed in the self-optometry assistance display image.
  • the CPU 21 A sets the step designated by the designated resumption instruction among the progress procedure as the resumption point of the self-optometry (S 43 ), and the process returns to the optometry control process (see FIG. 2 ).
  • the self-optometry is resumed from the restart step set in S 43 .
  • the above-described disclosure in the above embodiment is just one example. Therefore, it is also possible to modify the technology illustrated in the above embodiment. For example, it is possible to execute only a part of the technology illustrated in the above embodiment.
  • the subjective optometry system 100 in the above embodiment executes both the examiner call process (S 21 ) and the self-optometry assistance process by the examiner (S 23 to S 43 ) when a problem occurs during the self-optometry (S 11 : YES or S 12 : YES).
  • the subjective optometry system 100 may execute only one of the examiner call process and the assistance process by the examiner. For example, even if the examiner is called by only executing the examiner calling process, assisting in the self-optometry can be appropriately performed.
  • the self-optometry starts with the second information processing device 2 B being connected to the first information processing device 2 A.
  • the second information processing device 2 B may be connected to the first information processing device 2 A.
  • the self-optometry assistance process of this embodiment is executed in response to the instructions inputted to the second information processing device 2 B located remotely.
  • the self-optometry assistance process may also be executed in response to an instruction directly inputted to the first information processing device 2 A (for example, an instruction inputted to the first information processing device 2 A by the operation unit 34 A operated by an examiner, etc.).
  • an examiner at a location where the self-optometry device 1 is installed may input an instruction to assist in the self-optometry.
  • both the first information processing device 2 A and the second information processing device 2 B may accept input of instructions for assisting in the self-optometry.
  • the examiner can assist in the self-optometry at both the location where the self-optometry device 1 is installed and a remote location.
  • the process of calling for the examiner at S 21 may be executed at the first information processing device 2 A or may be executed at both the first information processing device 2 A and the second information processing device 2 B.
  • the process of outputting the presentation instruction signal to the self-optometry device 1 based on the progress procedure is an example of the “self-optometry progress step.”
  • the process of obtaining a response from the examinee at S 7 of FIGS. 2 and S 27 of FIG. 4 is an example of a “response acquisition step.”
  • the process of storing a correction value in S 8 of FIGS. 2 and S 28 of FIG. 4 is an example of a “correction value storing step.”
  • the self-optometry assistance process shown in FIG. 4 is an example of an “self-optometry assistance step.”
  • the process of modifying the correction value at S 33 and S 34 of FIG. 4 is an example of a “correction value modification step.”
  • the process of omitting progress steps at S 35 and S 36 of FIG. 4 is an example of a “procedure omission step.”
  • the process of obtaining the examinee's response in response to instructions inputted by the examiner at S 27 of FIG. 4 is an example of a “proxy response acquisition step”.
  • the processing for resuming the self-optometry at S 39 and S 40 of FIG. 4 is an example of a “continuous resumption step”.
  • the processing for resuming the self-optometry at S 33 and S 34 of FIG. 4 is an example of an “self-optometry resumption step”.
  • the processing for displaying the progress procedure at S 24 of FIG. 4 is an example of a “procedure display step”.

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