JP5095972B2 - Simulation apparatus and program - Google Patents

Description

  The present invention relates to a simulation apparatus and the like that simulates recovery of visual acuity by attaching contact lenses having different designs for each stage divided into a plurality of stages.

  In recent years, orthokeratology has attracted attention as one of myopia treatment methods. Orthokeratology is a treatment method in which the cornea is corrected with a contact lens without surgery, and the cornea has the same concave lens role as glasses or contact lenses. According to orthokeratology, a dedicated contact lens designed precisely according to each person's cornea shape can be worn at night to correct the shape of the cornea and maintain sufficient naked eyesight after removing the lens. Become.

  By the way, orthokeratology is a technology originally developed in the United States, so although it can achieve remarkable results for Westerners, it has little effect on Orientals. Therefore, the present inventor has eagerly studied the corneal shape of the Oriental, especially Japanese, and proposed a contact lens for correcting myopia and / or astigmatism having an effective curve for the Oriental, especially the Japanese (for example, (See Patent Document 1).

  In addition, in Japan, since the myopia and astigmatism with intensity far exceeding the treatment range of orthokeratology developed in the United States (hereinafter referred to as `` conventional orthokeratology '') are often seen, the present inventor Using a contact lens with a curve like this, we have developed a breakthrough treatment (hereinafter referred to as “new orthokeratology”) that has sufficient effects on low vision. By changing the lens design step by step, even a high myopia of 0.01 is gradually corrected, and finally the improvement of the naked eye vision is expected to about 1.5.

  The new orthokeratology employs a lens design that is more delicate and precise than the conventional orthokeratology. As a result, not only the intensity myopia and intensity astigmatism that could not be treated with conventional orthokeratology, but also corneal shapes such as keratoconus not suitable for laser surgery, re-myopia that appeared after laser surgery, and irregular astigmatism after corneal transplantation, etc. Now available. In addition, this highly accurate technology goes beyond the barriers of conventional orthokeratology developed as a myopic treatment, has a sufficient therapeutic effect even for intense hyperopia, and approaches to presbyopia have also been put into practice.

JP 2003-144479 A

In this way, it is possible to improve myopia, astigmatism, hyperopia and the like by a treatment method that changes the lens design step by step.
However, at present, even if you want to receive this kind of treatment, you can know how much your eyesight will recover if you don't actually wear a contact lens designed to match your cornea shape. Absent. For example, it was not known how many times the lens design was changed and how much improvement was expected in what period.
The technique of Patent Document 1 proposes a contact lens used for actual treatment, and does not propose a simulation method for restoring visual acuity.

  The present invention has been made to solve the technical problems as described above. The purpose of the present invention is to make it possible to easily simulate the recovery of visual acuity simply by inputting the current refraction value, visual acuity, and the like. There is to do.

Simulation apparatus of the present invention, there is provided a simulation device that simulates the restoration of vision by mounting the orthokeratology contact lens for individually designed stages in a plurality of stages, based on treatment performance, A storage means for storing the naked eye acuity, age, years of use history of glasses and contact lenses, the number of stages required for the recovery of visual acuity and a graph representing the degree of recovery at each stage in association with each other, and a simulation target Graphs corresponding to the combination of the naked eye acuity, the age, and the number of years received by the receiving means, and receiving means for receiving from the terminal device the age and the age of glasses and contact lenses used by the user. Search means from the storage means, and transmission means for sending the graph searched by the search means to the terminal device It is equipped with a.

Program of the present invention is a program for simulating the recovery of sight by mounting the orthokeratology contact lens for individually designed stages in a plurality of stages, the computer, based on the treatment performance In addition, the function of reading correspondence information from a predetermined storage device with naked eye vision, age, years of use history of glasses and contact lenses, and the number of stages necessary to restore vision and a graph indicating the degree of recovery at each stage A function that accepts the current naked-eye vision, age, age of glasses and contact lenses of the simulation target person, and a combination of the accepted naked-eye vision, age, and years with reference to the read correspondence information This is to realize a function of searching for a graph corresponding to the above and a function of outputting the searched graph.

  According to the present invention, it is possible to easily simulate the recovery of visual acuity simply by inputting the current refraction value, visual acuity and the like.

The best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating an example of a computer system according to the present embodiment. In this system, a server computer (hereinafter referred to as “server”) 10 and client computers (hereinafter referred to as “clients”) 20-1, 20-2,..., 20-n are connected via a network 30. It is constituted by.

The server 10 is realized by a personal computer, a workstation, or another computer, and stores page data to be displayed on the clients 20-1, 20-2,..., 20-n. Here, the page includes a page for inputting data and a page for displaying a result of the simulation when the simulation of the present embodiment is performed. The data of each page is described in, for example, HTML (HyperText Markup Language).
The client 20 is a personal computer, for example, and has a browser for interpreting the data and displaying a corresponding page. In the following description, one of the clients 20-1, 20-2,..., 20-n is represented as a client 20.
The network 30 is, for example, the Internet.

Here, a hardware configuration of a computer suitable for use as the server 10 in the present embodiment will be described.
FIG. 2 is a diagram showing an example of the hardware configuration of such a computer.
As shown in the figure, the computer includes a CPU (Central Processing Unit) 10a which is a calculation means, a main memory 10c connected to the CPU 10a via an M / B (motherboard) chip set 10b, and an M / B chip set 10b. And a display mechanism 10d connected to the CPU 10a. Further, a network interface 10f, a magnetic disk device (HDD) 10g, an audio mechanism 10h, a keyboard / mouse 10i, and a flexible disk drive 10j are connected to the M / B chip set 10b via a bridge circuit 10e. Has been.

  In FIG. 2, each component is connected through a bus. For example, the CPU 10a and the M / B chip set 10b and the M / B chip set 10b and the main memory 10c are connected via a CPU bus. Further, the M / B chipset 10b and the display mechanism 10d may be connected via an AGP (Accelerated Graphics Port), but if the display mechanism 10d includes a PCI Express compatible video card, the M / B The chip set 10b and the video card are connected via a PCI Express (PCIe) bus. When connecting to the bridge circuit 10e, for example, PCI Express can be used for the network interface 10f. For the magnetic disk device 10g, for example, serial ATA (AT Attachment), parallel transfer ATA, or PCI (Peripheral Components Interconnect) can be used. Furthermore, USB (Universal Serial Bus) can be used for the keyboard / mouse 10i and the flexible disk drive 10j.

In the present embodiment, the server 10 having such a hardware configuration first transmits a page for inputting data (hereinafter referred to as “input page”) to the client 20 via the network 30. To do. The client 20 displays this input page by the browser function.
FIG. 3 shows an example of this input page.
This input page is provided with two forms, “when the refraction value is known” and “when the refraction value is unknown”. Then, the user can instruct simulation by inputting data from either of these two forms and pressing the “Diagnose” button. Here, the refraction value is a value representing the refractive power of the cornea. This refraction value is a value that is a good medical decision, and a highly reliable simulation result can be obtained by inputting the refraction value and the age. However, ordinary users often do not know this value. Therefore, in the form of “when the refraction value is not known”, the simulation can be performed by inputting the naked eye visual acuity. However, in this case, the reliability of the simulation result is slightly lowered only with the naked eye vision and age, so as described later, the simulation result with high reliability can be obtained by inputting the usage history of glasses and contact lenses. So that you can get.

First, the form “when the refraction value is known” will be specifically described.
In this form, a refraction value input field for the right eye and a refraction value input field for the left eye are displayed. Although not shown in the drawing, options are prepared by dividing the refraction value by a certain width, and this option is displayed when the button on the right side of each input column is pressed. For example, options such as “0 to −0.9D”, “−1D to −1.9D”, and “−2D to −2.9D” are displayed.
This form also displays an age entry field. This is because even if the current refraction value is the same, the degree of recovery of visual acuity varies with age. Although not shown in the drawing, options for age are prepared by dividing them by a certain width, and this option is displayed when the button on the right side of the input field is pressed. For example, options such as “5 to 15 years old”, “16 to 20 years old”, and “21 to 30 years old” are displayed.
On the right side of the form, a “diagnosis” button for instructing simulation is displayed.

Next, the form “when the refraction value is not known” will be specifically described.
This form displays an input field for the naked eye vision of the right eye and an input field for the naked eye vision of the left eye.
This form also displays an age entry field. This is because the degree of recovery of visual acuity varies with age even if the present naked eye visual acuity is the same. Although not shown, options for age are prepared by dividing them by a certain width, and this option is displayed when the button on the right side of the input field is pressed. For example, options such as “5 to 15 years old”, “16 to 20 years old”, and “21 to 30 years old” are displayed.
In addition, this form also displays an input field for the usage history of eyeglasses or contact lenses (hereinafter simply referred to as “usage history”), which is the period of correction of visual acuity so far. This is because even if the current naked-eye vision is the same, the degree of recovery of vision differs depending on the usage history. Although not shown in the drawing, options for the usage history are prepared by dividing them by a certain width, and this option is displayed when the button on the right side of the input field is pressed. For example, options such as “no experience or less than one year”, “1-5 years”, “5-10 years” are displayed.
On the right side of the form, a “diagnosis” button for instructing simulation is displayed.

In this way, when the refraction value is known, in any case where the refraction value is not known, by appropriately inputting or selecting data and pressing the `` diagnosis button '', a page for outputting simulation results (hereinafter, "Output page") is displayed.
FIG. 4 shows an example of this output page.
In this output page, the degree of visual acuity recovery is represented by one graph. This is because the right eyesight and left eyesight are expected to recover following a similar course, and the right eyesight and left eyesight are expected to recover following different courses. In this case, two graphs each representing the degree of eyesight recovery of the right eye and the left eye are displayed.
Also, in this graph, it can be seen that four stages are required to restore visual acuity. In this example, initially the visual acuity is between 0.02 and 0.06. This has recovered to between 0.1 and 0.2 at the end of the first stage. Moreover, it has recovered to between 0.5 and 0.8 at the end of the second stage. Furthermore, at the end of the third stage, it has recovered to between 1.0 and 1.2. Furthermore, at the end of the fourth stage, it has recovered to between 1.2 and 2.0.

Next, the server 10 that processes data input from the input page of FIG. 3 and generates the output page of FIG. 4 will be described in detail.
FIG. 5 is a block diagram illustrating a functional configuration of the server 10.
As illustrated, the server 10 includes a communication unit 11, a search unit 12, a table storage unit 13, and a graph storage unit 14.
The communication unit 11 transmits / receives data to / from the client 20.
The search unit 12 searches for a graph as a simulation result based on the data received by the communication unit 11 and returns the graph to the communication unit 11.
The table storage unit 13 stores a table for specifying a graph that is a simulation result.
The graph storage unit 14 stores a graph that is a simulation result.

Here, the contents of the table stored in the table storage unit 13 are based on treatment results (in the embodiment, treatment results for 4600 people as shown in FIG. 4), and will be described in detail below. .
FIG. 6 is a diagram illustrating an example of a table stored in the table storage unit 13.
Among these, FIG. 6A shows a table (hereinafter referred to as a “refractive value table”) that is referred to when data is input from the form “when the refractive value is known” in FIG.
In this refraction value table, the vertical axis indicates the refraction value, and the horizontal axis indicates the age. Although blank in the figure, information for specifying a graph representing the degree of recovery of visual acuity when a combination of the refraction value and age is input is set in a cell where a certain refraction value and a certain age intersect. Is done.

  This table is an example of information for specifying a graph based on a combination of refraction value and age, and is not limited to this. For example, for each axis of the table, the refraction value and age are set as having a certain width, but the refraction value and age may be set as values having no width. In this case, a graph as a simulation result can be specified by appropriately interpolating an arbitrary refraction value and age input.

On the other hand, FIG. 6B shows a table (hereinafter referred to as “naked eyesight table”) that is referred to when data is input from the form “when the refraction value is unknown” in FIG.
In this naked eye visual acuity table, the visual axis (naked eye visual acuity) is set on the vertical axis, and the history of use is set on the horizontal axis. In addition, as shown in the figure, the table for the naked eye vision is prepared for each age with the vertical axis indicating visual acuity and the horizontal axis indicating the history of use. For example, a table for naked eye vision for 5 to 15 years old, a table for naked eye vision for 16 to 20 years old, a table for naked eye vision for 21 to 30 years old, and the like. Although it is blank in the figure, in the table for the naked eye vision for a certain age, the cell of a certain visual acuity and a certain usage history has a visual acuity when a combination of that age, that visual acuity and its usage history is input. Information for specifying a graph representing the degree of recovery is set.

  This table is also an example of information for specifying a graph based on a combination of age, visual acuity, and usage history, and is not limited to this. For example, the table may not be provided for each age having a certain width, but may be provided for an age having no width. Further, although the usage history is set as having a certain width on the horizontal axis of the table, the usage history may be set as a value having no width. In this case, a graph as a simulation result can be specified by appropriately interpolating an arbitrary age, visual acuity, usage history, and input.

An example of a graph stored in the graph storage unit 14 will be specifically described.
FIGS. 7-1 to 7-2 are diagrams illustrating examples of graphs stored in the graph storage unit 14.
FIG. 7-1 (a) is a graph showing a simulation result in which recovery of visual acuity is expected by attaching contact lenses having different designs in two stages.
FIG. 7-1 (b) is a graph showing a simulation result in which recovery of visual acuity is expected by attaching contact lenses having different designs in three stages.
FIG. 7-2 (c) is a graph showing a simulation result that recovery of visual acuity is expected by attaching contact lenses with different designs in four stages.
FIG. 7-2 (d) is a graph showing a simulation result in which recovery of visual acuity is expected by attaching contact lenses having different designs in five stages.
For example, the graphs of FIG. 7-1 (a), FIG. 7-1 (b), FIG. 7-2 (c), and FIG. Then, by setting information for specifying any one of the graph A, the graph B, the graph C, and the graph D to each cell in FIGS. 6A and 6B, the graph is specified.
Although four types of graphs are prepared here, the types of graphs are not limited to this.

Next, the operation of the server 10 will be described.
FIG. 8 is a flowchart showing the operation of the server 10.
In the server 10, first, the communication unit 11 receives data from the client 20 (step 101). Then, it is determined whether the input is from the form “when the refraction value is known” or the input from the form “when the refraction value is not known” (step 102). This determination can be made, for example, by examining to which form the name of an item in which valid data is stored belongs.

Here, in the case of input from the form “when the refraction value is known”, that is, when the refraction value is input, the communication unit 11 passes this refraction value and the age input at the same time to the search unit 12. . Then, the search unit 12 refers to the refraction value table stored in the table storage unit 13 (step 103). Then, a graph corresponding to the input combination of refraction value and age is specified (step 104).
On the other hand, in the case of input from the form “if you do not know the refraction value”, that is, when the naked eye acuity is input, the communication unit 11 retrieves the naked eye acuity and the age and usage history that are input simultaneously. To pass. Then, the search unit 12 refers to the naked eye vision table corresponding to the input age among the naked eye vision tables stored in the table storage unit 13 (step 105). Then, a graph corresponding to the combination of the input naked eye vision and usage history is specified (step 106).

Thereafter, the search unit 12 reads the identified graph from the graph storage unit 14 and passes it to the communication unit 11 (step 107).
Then, the communication unit 11 transmits the read graph to the client 20 (step 108).

  In the present embodiment, only the refraction value and the age can be entered from the “when the refraction value is known” form, and the history of use cannot be entered. However, the usage history may be input. In this case, the simulation can be performed by performing the same processing as when data is input from the form “when the refraction value is unknown”. That is, for example, the refractive value table of FIG. 6A may be prepared for each usage history, and the graph may be specified from the refractive value, age, and usage history.

  Thus, in this Embodiment, the graph matched with the combination of the present refraction value and age was provided as a simulation result. Alternatively, a graph associated with a combination of the current visual acuity, age, and usage history is provided as a simulation result. This makes it easy to simulate visual recovery.

1 is a block diagram showing an overall configuration of a computer system to which an embodiment of the present invention is applied. It is the figure which showed the hardware constitutions of the server with which embodiment of this invention is applied. It is the figure which showed the example of the page for input in embodiment of this invention. It is the figure which showed the example of the page for output in embodiment of this invention. It is the block diagram which showed the function structure of the server in embodiment of this invention. It is the figure which showed the example of the table referred by embodiment of this invention. It is the figure which showed the example of the graph searched by embodiment of this invention. It is the figure which showed the example of the graph searched by embodiment of this invention. It is the flowchart which showed the operation | movement of the server in embodiment of this invention.

Explanation of symbols

10 ... Server, 20 ... Client, 30 ... Network

Claims (2)

A simulation device that simulates the recovery of visual acuity by wearing contact lenses for corneal correction that are divided into a plurality of stages and different designs for each stage,
A memory that stores the eyesight, age , the number of years of use of eyeglasses and contact lenses, the number of stages required to restore visual acuity, and a graph indicating the degree of recovery at each stage in association with each other based on treatment results Means,
Receiving means for receiving, from the terminal device, the present naked eye vision, age, and years of use of glasses and contact lenses of a simulation target person;
Search means for searching the graph corresponding to the combination of naked eye vision, age and years received by the receiving means from the storage means;
A simulation apparatus comprising: a transmission unit configured to transmit the graph retrieved by the retrieval unit to the terminal device. A program for simulating the recovery of visual acuity by wearing contact lenses for corneal correction that are divided into multiple stages and different designs for each stage.
Predetermined storage of correspondence information between the naked eye vision based on treatment results , age, years of use history of glasses and contact lenses, and the number of stages required to restore visual acuity and a graph indicating the degree of recovery at each stage The ability to read from the device,
A function of accepting the present naked eye vision, age, and years of use of glasses and contact lenses of a simulation target person;
A function to search the graph corresponding to the combination of the naked eyesight, age, and years received with reference to the read correspondence information;
A program for realizing the function of outputting the searched graph.

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