JP4489484B2 - Contrast sensitivity inspection support system and contrast sensitivity inspection support program - Google Patents

Description

  The present invention relates to a contrast sensitivity inspection support system and a contrast sensitivity inspection support program.

The contrast sensitivity test is a test that measures the ability to identify subtle differences in brightness.
In addition, the contrast sensitivity test is performed before and after corrective surgery for cataracts, etc., and is used to check the degree of recovery of visual function. Many.

  A conventional contrast sensitivity inspection method will be described below.

  First, the examiner prepares an index in which the stripe width and contrast are changed. This index has 5 types (1.5, 3, 6, 12, 18 (cyc / deg)) of spatial frequencies and 5 columns (A column to E column), and the contrast before and after the threshold value is about 0.2 log unit. Each of them is arranged in 8 stages (zero contrast = 9 stages when BLANK is inserted).

  Actually, the examination room is turned off and the examination is performed in a dark room state. Turn on the halogen lamps on both sides of the target to create a state where the headlights of the oncoming vehicle are hit from the front at night, and check the contrast sensitivity under this condition.

  Then, the examiner asks the examinee in order from the higher contrast among the indexes constituting the A column, and the direction in which the striped pattern of each index is directed to the right, left, or upper To ask questions. In this way, the subject first enters the number assigned to the wrong index or the index that cannot be determined on the contrast sensitivity test sheet. Subsequently, the B column, the C column, the D column, and the E column are entered in the same manner for a total of five spatial frequencies.

  Here, as shown in FIG. 10, the contrast sensitivity test sheet includes, as patient information (subject information), a column for entering a patient ID and a patient name, a column for entering an examiner, and a horizontal axis. Is a paper on which a graph with spatial frequency and contrast sensitivity on the vertical axis is described, and a scale for plotting the results of the contrast sensitivity test in columns A to E of the subject is in the coordinates of the graph. Are listed. In addition, a normal range as a test result is graphically displayed in advance on the paper, and the shape of this display varies depending on the age of the subject. That is, in the contrast sensitivity test, the examiner prepares a contrast sensitivity test sheet according to the age of the subject, and compares the normal range display previously written on the sheet with the plotted test result. He was diagnosed with a contrast sensitivity test on his eye.

  In recent years, many electronic medical chart systems for ophthalmology have been proposed to support ophthalmic medical diagnosis. However, the proposed electronic medical chart system has not introduced a function for inputting the result of the contrast sensitivity test as described above.

  The present invention has been made in view of the above problems, and its purpose is to display a normal range based on the age of the subject on the same screen for the result information of the contrast sensitivity test of the subject's eye. By displaying in an overlapping manner, the result information for the normal range can be directly viewed by the examiner, and the visual function progress before and after the subject can also be directly viewed. An object is to provide a contrast sensitivity inspection support system and a contrast sensitivity inspection support program.

  In order to solve the above problems, a contrast sensitivity test support system according to the invention described in claim 1 includes age information of a subject, result information of a contrast sensitivity test of an eye to be examined, and a test date on which the test is performed. Storage means for storing input means for input, a template composed of coordinates with contrast sensitivity and spatial frequency as axes, and normal range information indicating result information of contrast sensitivity inspections of normal persons associated with each age And the display means displays the template, the contrast sensitivity test result information input by the input means is displayed on the coordinates, and the table is displayed based on the age information input by the input means. The normal range information corresponding to the age of the subject is displayed on the coordinates, and the control for each examination date of the subject is referred to. And having a control means for storing the result information of the last sensitivity examination in the storage means.

  By adopting such a configuration, the normal range based on the age of the subject is displayed on the same screen with respect to the result information of the contrast sensitivity test of the eye to be examined. The result information can be directly viewed by the examiner.

  In order to solve the above-mentioned problem, the contrast sensitivity inspection support system according to the invention described in claim 2 is the contrast sensitivity inspection support system according to claim 1, wherein the control means includes the past contrast sensitivity of the subject. When examination result information is stored in the storage means, based on the examination date of the subject's contrast sensitivity examination, a plurality of the subject's contrast sensitivity examination result information is displayed on the coordinates for each examination date. It is characterized in that the connection is displayed in an identifiable manner.

  By setting it as such a structure, since progress of a visual function of a subject can be directly visually recognized in light of a normal range, the visual function diagnosis of the subject can be favorably supported. .

  In order to solve the above-mentioned problem, the contrast sensitivity inspection support system according to the invention described in claim 3 is the contrast sensitivity inspection support system according to claim 1, wherein the control means includes the past contrast sensitivity of the subject. When the examination result information is stored in the storage means, the examination date is based on the examination date of the subject's contrast sensitivity examination and the surgery date of the subject inputted by the input means. The result information of the contrast sensitivity test of the subject is displayed in a distinguishable manner on the coordinates depending on whether the operation date is before or after the operation date.

  By adopting such a configuration, the progress of the visual function before and after the subject can be directly viewed in the normal range, and thus the visual function diagnosis of the subject can be improved. Can help.

  In order to solve the above-mentioned problem, the contrast sensitivity test support program according to the invention described in claim 4 includes the age information of the subject, the result information of the contrast sensitivity test of the eye to be examined, and the test date on which the test was performed. An input receiving process for receiving an input, a template constituted by coordinates with contrast sensitivity and spatial frequency as axes, are displayed on the display means, and the input result information of the contrast sensitivity test is displayed on the coordinates in a connected manner. 1 on the basis of the age information input in the display process 1 and the input receiving process, referring to the normal range information indicating the result information of the contrast sensitivity test of the normal person associated with each age, A second display process for displaying normal range information according to the age of the person on the coordinates, and the result information of the contrast sensitivity test for each examination date of the subject Characterized in that the functioning of the storage process for storing the stage in the computer.

  Accordingly, since the normal range based on the age of the subject is displayed on the same screen for the result information of the contrast sensitivity test of the subject eye, the examiner directly displays the result information for the normal range. Therefore, the visual function diagnosis of the subject can be favorably supported.

  In order to solve the above-mentioned problem, the contrast sensitivity inspection support program according to the invention described in claim 5 is the contrast sensitivity inspection support program according to claim 4, wherein the first display process is a past of the subject. When the contrast sensitivity test result information of the subject is stored, based on the test date of the subject's contrast sensitivity test, a plurality of the subject's contrast sensitivity test result information is displayed on the coordinates for each test date. It is characterized by displaying the connection in an identifiable manner.

  Accordingly, since the progress of the visual function of the subject can be directly recognized in light of the normal range, the visual function diagnosis of the subject can be favorably supported.

  In order to solve the above-mentioned problem, the contrast sensitivity inspection support program according to the invention described in claim 6 is the contrast sensitivity inspection support program according to claim 4, wherein the first display step is a past of the subject. When the result information of the contrast sensitivity test is stored, the test date is before the operation date based on the entered test date of the contrast sensitivity test of the subject and the operation date of the subject. According to the present invention, the result information of the contrast sensitivity test of the subject is displayed so as to be identifiable on the coordinates depending on whether it is present or later.

  Accordingly, since the progress of the visual function before and after the subject can be directly recognized in light of the normal range, the visual function diagnosis of the subject can be favorably supported.

  As described above, according to the contrast sensitivity test support system and the contrast sensitivity test support program according to the present invention, the normal range based on the age of the subject is obtained with respect to the result information of the contrast sensitivity test of the subject eye. Since the information is displayed on the same screen, the examiner can directly view the result information with respect to the normal range, and the progress of the visual function before and after the subject can be directly seen. Can be visually recognized.

  Hereinafter, an embodiment of a contrast sensitivity inspection support system and a contrast sensitivity inspection support program according to the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration in an embodiment of a contrast sensitivity inspection support system according to the present invention. The contrast sensitivity inspection support system according to the present invention has a configuration using a known so-called electronic medical record system. As shown in FIG. 1, the contrast sensitivity test support system according to the present embodiment includes a server 1 that creates and manages an electronic medical record of a patient (subject), and a user (examiner, for example, a doctor). A network 3 is connected to an input unit 4 that performs input for calling an electronic medical record of a predetermined subject and a terminal 2 that includes a display unit 3 that browses the electronic medical record of the subject. The terminal 2 is installed in an examination room used by each doctor's examination room or laboratory technician. That is, it is assumed that the terminal 2 is provided at a place where each user browses the electronic medical record screen exclusively.

  The terminal 2 includes input means 4 for inputting patient information including age information of the subject, information on the result of contrast sensitivity examination of the subject's eye, and examination date on which the examination is performed, contrast sensitivity, and spatial frequency. And a display means 3 for displaying on the template the result information of the contrast sensitivity test on the template. Various information input by the input means 4 is transmitted to the server 1 or the server 1 CPU 21 is incorporated as a control means for displaying various information transmitted from the display means 3. That is, in response to a request from the CPU 11 of the server 1, the CPU 21 displays various information transmitted from the server 1 on the display unit 3 and transmits various information input by the input unit 4 to the CPU 11 of the server 1. And function to request various processes.

  The server 1 includes a CPU 11, a storage unit 12, a ROM 13, and a RAM 14. The CPU 11 constitutes a control unit that controls the server 1 itself and controls the terminal 2. The CPU 21 and the CPU 11 correspond to the control means in the claims.

  The storage unit 12 is a device such as a hard disk, for example. The storage unit 12 stores the template and table, and patient information transmitted from the terminal 2 in the past, and is managed as a database.

  Here, the template is image information in which columns for inputting patient information and result information of the contrast sensitivity test of the eye to be examined are defined. That is, the image information is referred to by the CPU 11 when the user displays the input screen on the display unit 3 for inputting the patient information and the result of the contrast sensitivity test of the eye to be examined using the input unit 4.

  In a known electronic medical chart system, test result information obtained by performing each test is input, and a template for management is stored in the storage unit 12 with different specifications for each test. Therefore, the template referred to in the present invention describes a template for inputting and managing inspection result information obtained by contrast sensitivity inspection among templates prepared for various inspections.

  The table is image information in which normal ranges displayed on the template are individually set for the age of the subject. For example, image information indicating a normal range for each age of the subject is stored as “image information indicating the relationship between the spatial frequency and the contrast sensitivity for normal subjects aged 21 to 30 years”. . This table is a table referred to in this claim.

  Further, the ROM 13 stores a known electronic medical record program and a contrast sensitivity inspection support program that functions according to the present embodiment. When the contrast sensitivity inspection support program stored in the ROM 13 is activated, the computer system It operates as an embodiment of the contrast sensitivity inspection support system of the invention.

  The RAM 14 functions as means for temporarily storing various information exchanged between the server 1 and the terminal 2. The function of the RAM 14 is determined by the CPU 11 when the result information of the past contrast sensitivity test of the predetermined subject stored in the storage unit 12 is transmitted to the terminal 2 in response to a request from the CPU 21. This is a function for temporarily storing information.

  Therefore, the contrast sensitivity inspection support program stored in the ROM 13 corresponds to an embodiment of the contrast sensitivity inspection support program according to the present invention. In addition, the contrast sensitivity inspection support program according to the present invention may be recorded on a CD-ROM or the like, and a hard disk in a state where the contrast sensitivity inspection support program is installed in the hard disk of the computer system may also be used. This corresponds to an aspect of a recording medium on which a sensitivity inspection support program is recorded.

  Next, the operation of the contrast sensitivity inspection support system according to the present invention configured as described above will be described below with reference to FIG. In this description, the operation of the contrast sensitivity inspection support program according to the present invention is the same.

  FIG. 2 is a flowchart showing an operation in an embodiment of the contrast sensitivity inspection support system according to the present invention. FIGS. 3 to 12 are diagrams showing an input screen and a display screen for contrast sensitivity inspection displayed on the display means in the embodiment of the contrast sensitivity inspection support system according to the present invention. In particular, FIGS. FIG. 9 is a diagram showing a result screen of the contrast sensitivity test displayed on the display means in the embodiment of the contrast sensitivity test support system according to the present invention.

  First, when a user (for example, a doctor) uses the input means 4 of the terminal 2 installed in the examination room and the electronic medical record system stored in the ROM 13 is activated by the CPU 11 and the CPU 21, an electronic medical record acceptance screen is displayed. When the contrast sensitivity inspection item displayed in the means 3 and selected in the inspection item column in the screen is selected, the CPU 21 transmits that the item has been selected to the CPU 11, and the CPU 11 receives the input screen information including the template from the storage means 12. Read (S1).

  Thereafter, in response to the input screen information being transmitted from the CPU 11, the CPU 21 displays the input screen (see FIG. 3) on the display means 3 (S2).

  In response to the display of the input screen on the display means 3, the user uses the input means 4 to input patient information of the subject to whom examination results are to be input. At this time, in order for the contrast sensitivity examination support system according to the present invention to function effectively, the patient information to be input must include not only the ID and name of the subject but also the age and examination date. Don't be. Accordingly, the CPU 11 receives the patient information from the input means 4, the CPU 21 detects the input, and determines whether or not a signal indicating that the patient information has been input is received from the CPU 21 (S3). If information has been input (S3-Yes), it is determined whether or not age is included in the input patient information (S4).

  Then, as shown in FIG. 3, the CPU 11 is input with the age by the input means 4, the CPU 21 detects the input, and receives a signal indicating that the age is input from the CPU 21. If determined (S4-Yes), it is determined whether or not the examination date of the subject is included in the patient information (S5).

  Regarding the determination of whether or not the examination date of the subject is included in the patient information, if the examination date has been input (S5-Yes), the CPU 11 receives the input of the examination result on the template. Each inspection result information input there is displayed on the display means 3 (S6). Here, it is preferable that the inspection date includes not only the inspection date and time but also the inspection time.

  In the input receiving process, the user uses a pointing device such as a mouse as the input unit 4 and plots the coordinates on the coordinates, so that the CPU 21 recognizes the plotted coordinates and connects the plotted points. This is done by the CPU 21 creating point information on the coordinates configured to do this and transmitting the created coordinate information to the display means 3. For example, when the test result information of the subject is “6 in the A column, 6 in the B column, 7 in the C column, 8 in the D column”, the user uses the scale of the A column in the 6th and Bth columns. Plotting is performed using the input means 4 on the scale 6 of the column, 7 of the scale of the C column, and 8 of the scale of the D column. In response to the input, as shown in FIG. Displays the connection on the display means 3.

  Next, the CPU 21 transmits the result information of the contrast sensitivity test to the server 1, and the received CPU 11 stores the information in the storage unit 12 for each subject and each test date (S7). At this time, the information stored in the storage unit 12 may be not only the result information of the contrast sensitivity test for each subject and each test date, but also the information associated with the result information.

  Thereafter, the CPU 11 searches the storage unit 12 for whether or not the result information of the contrast sensitivity test has been stored in the past for the subject input by the input unit 4 (S8).

  If the result of the contrast sensitivity test of the subject is not stored in the storage unit 12 (S8-No), the CPU 11 stores the input normal range information according to the age of the subject. Are read with reference to the table (S9).

  Thereafter, the CPU 11 transmits the read normal range information to the CPU 21.

  Receiving the information, the CPU 21 instructs the display means 3 to display the information superimposed on the result information of the contrast sensitivity test displayed on the coordinates of the template (see FIG. 5) (S10).

  On the other hand, as a result of searching the storage means 12 as to whether or not the contrast sensitivity test result information of the subject has been stored in the past, there is past contrast sensitivity test result information in the storage means 12 ( In S8-Yes, the CPU 11 further searches whether or not the operation date of the subject is stored in the storage unit 12 (S11).

  And when the said operation day of the said subject is not memorize | stored in the memory | storage means 12 (S11-No), since the result information of two or more test days is obtained, as shown in FIG. On the coordinates, the result information of the contrast sensitivity test is displayed on the display means 3 so that it can be identified for each test date, and the display of each test date is displayed as an “test date display field”. In FIG. 6, a graph of result information in which December 5, 2003 is an examination date of the contrast sensitivity test, and the result information of the contrast sensitivity test on December 1, 2003 of the patient stored in the storage unit 12. And an inspection date display field for identifying a graph of the result information on each inspection date.

  In addition, as a method of displaying the template in an identifiable manner, a method of distinguishing and displaying line types such as a solid line and a broken line and a method of distinguishing the colors of the lines are adopted. Then, the CPU 11 retrieves and reads out the normal range information corresponding to the input age of the subject from the storage unit 12.

  Here, in order to make it possible to identify the result information of the contrast sensitivity inspection for each inspection day, in the present invention, for example, information on various identifiable line types and colors is stored in the ROM 13 in advance. The line type information is sequentially associated with the result information with the old inspection date.

  Thereafter, the CPU 11 transmits the read normal range information to the CPU 21.

  Receiving the information, the CPU 21 instructs the display means 3 to display the information superimposed on the contrast sensitivity test result information displayed on the coordinates of the template (see FIG. 7) (S10).

  On the other hand, when the operation date of the subject is stored in the storage unit 12 (S11-Yes), the CPU 11 displays the operation date stored in the storage unit 12 on the template as shown in FIG. Displayed as “day display column”.

  In addition, since the result information of the operation date and two or more inspection dates is obtained, the result information of the contrast sensitivity inspection on each inspection date is distinguished on the template and displayed on the display unit 3 according to the context of the operation date. At the same time, the display of each inspection date is displayed as an “inspection date display field”.

  Accordingly, in FIG. 8, a graph of the result information in which December 5, 2003 is the examination date of the contrast sensitivity test, and the result of the contrast sensitivity test of the patient stored on the storage unit 12 on December 1, 2003. It shows that an information graph, an examination date display column for identifying a graph of result information on each examination date, and an operation date display column with December 3, 2003 as the operation date are displayed.

  In addition, as a method of displaying the template in an identifiable manner, a method of distinguishing and displaying line types such as a solid line and a broken line and a method of distinguishing the colors of the lines are adopted. Then, the CPU 11 retrieves and reads out the normal range information corresponding to the input age of the subject from the storage unit 12.

  Here, in order to make it possible to identify the result information of the contrast sensitivity inspection for each inspection day, in the present invention, for example, information on various identifiable line types and colors is stored in the ROM 13 in advance. The line type information is sequentially associated with the result information with respect to the context of the operation date.

  Thereafter, the CPU 11 transmits the read normal range information to the CPU 21.

  Receiving the information, the CPU 21 instructs the display means 3 to display the information superimposed on the result information of the contrast sensitivity test displayed on the coordinates of the template (see FIG. 9) (S10).

  As described above, in the present invention, the normal range based on the age of the subject is displayed on the same screen for the result information of the contrast sensitivity test of the subject's eye. The result information can be directly recognized by the examiner, and the progress of the visual function before and after the subject can be directly recognized.

  The configuration described above is merely an example of an embodiment of the present invention. Therefore, various modifications, changes, and additions of the configuration within the meaning of the present invention can be made as appropriate.

  For example, in the present embodiment, it is limited to a configuration in which the user can directly view the progress of the visual function of the same eye of the subject and favorably supports the diagnosis of the visual function of the same eye of the subject. It is not something. That is, the result information of the contrast sensitivity test for both eyes of the subject can be applied to the present invention, and the diagnosis support can be performed for the balance of visual functions of both eyes of the subject regardless of the course. .

  In addition, in this embodiment, a means for providing diagnosis support by specifying a disease name or the like within a possible range based on a positional relationship on a graph between the result information of the contrast sensitivity test displayed in a wired manner and an image indicating a normal range It is also possible to add. Specifically, the disease name is specified from the interval between the result information of the plurality of contrast sensitivity examinations displayed in connection, or how far the result information of the contrast sensitivity inspection displayed in connection is away from the image indicating the normal range. By specifying the disease name, it is possible to provide more effective diagnosis support.

  In this embodiment, the CPU of the server 1 connected to the network and the CPU 21 of the terminal 2 are used as the control means. However, the control means in the present invention is not limited to such a configuration, and the server is controlled by one control means. 1 and the terminal 2 may function (for example, the server 1 and the terminal 2 are integrated).

The figure which shows the structure in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The flowchart which shows the operation | movement in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the screen displayed on a display means in one Embodiment of the contrast sensitivity test | inspection assistance system which concerns on this invention. The figure which shows the test result entry paper used for the conventional contrast sensitivity test.

Explanation of symbols

1 server 2 terminal 3 display means 4 input means 5 reception terminal 11 CPU
12 storage means 13 ROM
14 RAM
21 CPU

Claims (6)

Input means for inputting the age information of the subject, the result information of the contrast sensitivity test of the subject's eye, and the examination date on which the examination was performed;
Storage means for storing a template configured with coordinates having contrast sensitivity and spatial frequency as axes, and normal range information indicating result information of a contrast sensitivity test of a normal person associated with each age;
The template is displayed on the display means, the result information of the contrast sensitivity test input by the input means is displayed on the coordinates, and the table is referred to based on the age information input by the input means. And a control means for displaying normal range information according to the age of the subject on the coordinates and storing the result information of the contrast sensitivity test for each examination date of the subject in the storage means. Contrast sensitivity inspection support system. The control means includes a plurality of the subjects based on the examination date of the subject's contrast sensitivity test when the information on the result of the past contrast sensitivity test of the subject is stored in the storage means. The contrast sensitivity inspection support system according to claim 1, wherein the contrast sensitivity inspection result information is displayed on the coordinates so as to be identifiable for each inspection date. The control means, when the result information of the past contrast sensitivity test of the subject is stored in the storage means, the test date of the contrast sensitivity test of the subject input by the input means and the Based on the operation date of the subject, the result information of the contrast sensitivity test of the subject is displayed in a connectable manner on the coordinates depending on whether the inspection date is before or after the operation date. The contrast sensitivity inspection support system according to claim 1, wherein: An input receiving process for receiving input of age information of the subject, result information of the contrast sensitivity test of the subject's eye, and an examination date on which the examination was performed;
A first display step of displaying on the display means a template composed of coordinates having contrast sensitivity and spatial frequency as axes, and displaying the input result information of the contrast sensitivity test on the coordinates;
Based on the age information input in the input acceptance process, referring to normal range information indicating the result information of the normal person's contrast sensitivity test associated with each age, normal according to the age of the subject A second display process for displaying range information on the coordinates;
A contrast sensitivity inspection support program for causing a computer to function as a storage process for storing the result information of the contrast sensitivity inspection for each inspection day of the subject in a storage means. In the first display process, when the information on the result of the past contrast sensitivity test of the subject is stored, a plurality of the subjects are based on the test date of the contrast sensitivity test of the subject. 5. The contrast sensitivity inspection support program according to claim 4, wherein the contrast sensitivity inspection result information is displayed on the coordinates so as to be identifiable for each inspection date. In the first display process, when the information on the result of the past contrast sensitivity test of the subject is stored, the inputted examination date of the contrast sensitivity test of the subject and the operation of the subject The result information of the contrast sensitivity test of the subject is displayed in a distinguishable manner on the coordinates depending on whether the test date is before or after the operation date. 4. The contrast sensitivity inspection support program according to 4.

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