JPH0663014A - Eidoptometry and its device - Google Patents

Abstract

PURPOSE:To provide the eidoptometry and its device, by which an examinee can execute the measurement by himself even if a skilled measurer does not exist, and also, a data processing can be executed quickly. CONSTITUTION:With respect to a presented symbol, etc., an answer is executed in a voice, and by recognizing its answered, whether the presented symbol is answered correctly or not is decided automatically and eyesight is evaluated automatically. In an eidoptometric instrument 10, an automatic presentation of a measured image, and an automatic processing of an examinee's answer can be executed by an automatic eyesight deciding means 1a, a voice answering means 3 and a voice recognizing means 4a. In an image information output means, when the examinee brings his eye into contact with an eidoptometric window, a detection output is inputted from an eye contact detecting means, an eidoptometry is started automatically and image information is outputted from an image information output means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual acuity measuring method and a device therefor, and in particular, by automatically identifying and determining an answer by voice, a subject can be operated even if there is no measurer who operates the device and measures visual acuity. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a labor-saving visual acuity measurement method and apparatus that can be measured by one person.

[0002]

2. Description of the Related Art Conventionally, a visual acuity measuring device used for a visual acuity measurement for health checkup, an optometry for determining a lens of eyeglasses, a visual acuity measurement for a driver's license center, etc. In addition, the measurer sequentially asked the symbols, characters, etc. presented, and the visual acuity was judged from the answer result of the subject.

[0003]

However, in the case of this conventional visual acuity measuring device, it is necessary for the test subject to have a skilled measurer, and therefore the visual acuity measurement efficiency is high in a medical examination with a large number of test subjects. Low. In addition, there is a problem in that the measurer must accompany the subject for a long time even when deciding the lens of the eyeglasses, which requires the labor cost of a skilled measurer.

It is an object of the present invention to provide a visual acuity measuring method and apparatus capable of measuring a visual acuity with high accuracy and allowing a test subject to perform the measurement alone without a measurer.

[0005]

As means for solving the above-mentioned problems, the present invention presents image information for measuring visual acuity, makes a voice response to the presented image information, and responds by voice. The voice is automatically judged by recognizing the voice and automatically judging whether the presented image information is correctly answered. Preferably, an image information output unit for outputting image information for measuring visual acuity, a voice recognition determination unit for voice inputting whether or not the presented image information is correctly answered, and determining the voice, and the voice recognition. The visual acuity determination unit automatically determines visual acuity according to the determination output from the determination unit. Further, preferably, the image information output means outputs image information for visual acuity measurement, and means for responding by voice to the image information output from the image information output means. More preferably, the eyepiece detection means detects that the subject is in the eye of the sight glass for visual acuity measurement, and in response to the detection, the image information output means starts the presentation of the image information.

[0006] Preferably, the image information output means presents different image information of the same size when the same image information cannot be consecutively answered, and presents larger image information when the answer cannot be answered. Further, preferably, the voice recognition determining means recognizes whether the answer is correct or not, and determines whether or not the data necessary for the visual acuity determination are prepared according to the recognition result. More preferably, a means for automatically collecting visual acuity measurement data determined by the voice recognition determining means is provided.

[0007] Preferably, the image information output means presents appropriate image information with reference to the result of automatic totalization by the automatic totalization means. Also preferably, the image information output means presents image information for visual acuity measurement in which the image information output means presents appropriate image information with reference to the result of automatic aggregation by the automatic aggregation means, and with respect to the presented image information A visual response is automatically determined by making a voice response, recognizing the response voice, and automatically determining whether or not the presented image information is correctly answered.

[0008]

[Operation] Presenting image information for measuring visual acuity, making a voice response to the presented image information, recognizing the responded voice, and automatically determining whether or not the presented image information is correctly answered Then, the visual acuity is automatically determined. The image information output means outputs the image information for the visual acuity measurement, inputs the voice as to whether or not the image information presented by the voice recognition determination means is correctly answered, and determines the voice. The visual acuity determination unit automatically determines the visual acuity according to the determination output from the voice recognition determination unit. Further, the image information output means outputs image information for measuring visual acuity, and the voice response means responds to the image information by voice. Further, the eyepiece detection means detects that the subject is in the eyepiece through the sight glass for visual acuity measurement, and in response to the detection, the image information output means starts the presentation of the image information. The image information output means presents different image information of the same size when consecutively unable to answer the same image information, and presents larger image information when unable to answer. In addition, the voice recognition judgment means recognizes whether the answer was correct or not,
According to the recognition result, it is determined whether or not all the data necessary for the visual acuity determination are prepared. Further, a means for automatically totaling the visual acuity measurement data judged by the voice recognition judging means is provided. The image information output unit presents appropriate image information with reference to the result of automatic counting by the automatic counting unit. The image information output means presents the image information for visual acuity measurement in which the image information output means presents appropriate image information with reference to the result automatically aggregated by the automatic tabulation means, and makes the voice response to the presented image information. , The recognized voice is recognized, and the visual acuity is automatically determined by automatically determining whether or not the presented image information is correctly answered.

[0009]

Embodiments of the present invention will be described with reference to the drawings. 1 is a block diagram of a visual acuity measuring apparatus applied to an embodiment of the visual acuity measuring method and apparatus of the present invention, FIG. 2 is a block diagram of a visual acuity measuring apparatus applied to an embodiment of the present invention, and FIG. FIG. 4 is an external view of a visual acuity measuring apparatus applied to one embodiment of the present invention, and FIG. 4 is an explanatory view of a visual acuity measuring apparatus applied to one embodiment of the present invention. In this visual acuity measuring device 10, the subject answers the presented symbol or the like by voice, and by recognizing the answered voice, the visual acuity is automatically determined by automatically determining whether or not the presented symbol is correctly answered. Evaluate to.

The structure of the visual acuity measuring device 10 will be described with reference to the visual acuity measuring units 10A, 10B and 10C shown in FIGS. The visual acuity measuring unit 10C is the visual acuity measuring unit 10C.
It is a block diagram which shows the concrete structure of A and 10B. In these figures, the system control and visual acuity determination unit 1
Controls the entire visual acuity measuring units 10A and 10B and automatically determines visual acuity. The system control and visual acuity determination unit 1 is composed of a microprocessor 1a shown in FIG. The microprocessor 1a plays the role of the system control and visual acuity determination unit 1 shown in FIGS. 1 and 2 by software.

The image presenting section 2 shown in FIGS.
Of the liquid crystal display section 2a. The image presenting unit 2 displays the signals for optometry opened in four directions of up, down, left and right in various sizes in response to commands from the microprocessor 1a on the liquid crystal display unit 2a. When the image information presenting unit 2 cannot answer the same code at least continuously, for example, the code 2a of FIG. 7 described later, it presents the image information of the code 2b of the same size in FIG. When the answer cannot be made, the accuracy of the visual acuity determination is improved by presenting the code 2c which is larger image information. Further, as shown in FIGS. 3 and 4, the image information presenting unit 2 automatically starts the visual acuity measurement when the detection output is input from the infrared detector 8 when the subject contacts the sighting window for visual acuity measurement. By outputting the image information, the visual acuity measurement time can be shortened. The microphone 3 takes in a voice signal produced by the subject and converts it into an electric signal. Further, the voice recognition unit 4 recognizes the pronunciation content from the voice signal of the subject 12 shown in FIG. 3 input from the microphone 3 of FIGS. The voice recognition unit 4 is composed of the unspecified speaker word voice recognition unit 4a shown in FIG. 4, and includes, for example, “upper”, “lower”, “left”, “right”, “unknown”, “yes” and Can recognize a total of 7 words "No".

The voice response unit 5 shown in FIG. 2 gives the subject 12 shown in FIG. 3 a clear answer, for example, "whether the opening direction of the symbol to be presented is up, down, right or left." , Etc., or output a message responding to the recognition result. This voice response unit 5
It is composed of the ADPCM voice response unit 5a shown in FIG. A speaker 6 is connected to the voice response unit 5 as shown in FIG.

The visual acuity measurement main body 9 shown in FIG. 3 incorporates the system control and visual acuity determination unit 1, the image presentation unit 2, the voice recognition unit 4 and the voice response unit 5 shown in FIGS. A viewing window 7 is provided on one of the inclined surfaces of the visual acuity measurement main body 9 at a position where the eyes of the subject 12 can be alternately examined. A pair of arms 1 is provided at a position sandwiching the viewing window 7.
1 is provided, and the tips 11a of the arms 11 are formed in a substantially circular shape.

One end 11a of one of these arms 11
The speaker 6 is attached to the position of the right ear of the subject 12, and the infrared detecting unit 8 shown in FIG. 4 is provided at the other end (not shown). This infrared detector 8 is shown in FIG.
When the subject 12 shown in FIG.
The infrared detection switch 8a provided on the body of the left arm (not shown) cuts off the infrared light emitted from the infrared lamp 15 at the nose of the subject 12 at the portion A so that the infrared detection switch 8a is turned off. Become subject 12
Is detected in the state of being in contact with the viewing window 7. Further, in FIG. 3, the microphone 3 is disposed below the viewing window 7, and the position of the microphone 3 is determined so that the mouth of the subject 12 when the eyepiece 7 is brought into the eye is close to the microphone 3. The visual acuity measuring unit 10C of the visual acuity measuring device 10 of FIG. 4 is a block diagram for specifically explaining the configuration of FIGS. 1 to 3, and since it has been sequentially described in the description of the configuration of FIGS. 1 to 3, here, Detailed explanation is omitted.

Next, a procedure for measuring visual acuity using the visual acuity measuring apparatus according to one embodiment of the present invention will be described with reference to the flowchart of FIG. 5, the explanatory view of FIG. 3 and the block diagram of FIG. First, when the test subject 12 in FIG. 3 makes eye contact with the viewing window 7, the infrared detector 8 shown in FIG. 4 blocks infrared light at the portion A indicated by the dotted line, and the test subject 12 is in contact with the viewing window 7. Recognize. At this time, the infrared ray is blocked by the infrared ray detector 8, and a signal 100 indicating that the subject 12 is in contact with the observation window 7 is sent from the infrared ray detector 8 to the microprocessor 1a. This microprocessor 1
In a, it is determined that the subject 12 has contacted the viewing window 7, and the following measurement is started.

When the visual acuity measurement is started, the ADPCM
From the voice response unit 5a through the speaker 6, a message saying "Please clearly indicate the open direction of the symbol to be presented is either up, down, left or right" is given to the subject 12, and the measurement method is explained ( Step 1, hereinafter referred to as ST1). Next, the microprocessor 1 causes the liquid crystal display block 2a to display a visual acuity test symbol of an appropriate size. After the symbol is displayed, a message "How is this?" Is output by voice to prompt the subject 12 to answer.

The subject 12 gazes at the presented symbols in the same way as in the conventional visual acuity measurement, "up", "down",
When answering either "right" or "left", or when the direction in which the symbol is open is unknown, the microphone 3 is pronounced "not understand" (ST2). The input speech produced by the microphone 3 is the unspecified speaker word speech recognition unit 4
It is recognized by a and it is judged whether or not the subject 12 is recognized (ST3). If the recognized word is "unknown", it is considered that the test subject 12 did not understand, and the size of the presentation symbol is changed and resubmission is performed (ST4). At this time, ST2- until the recognized word becomes "I understand."
Repeat ST4.

If another word, for example, "up" is recognized in ST3, a message corresponding to the word, for example, "is it up?" Is output as a voice for confirmation (ST5). It is determined whether or not the response voice is a word intended by the user (ST6). If the response sound is the word that the subject 12 intended, the test subject 12 uses the microphone 3
Say “yes” to, and if it is an unintended word, say “no”. The unspecified speaker word voice recognition unit 4 recognizes this voice, and if “No”, outputs a message corresponding to the recognition result next to the previous response message by voice output (ST.
7). If the response voice is the word “yes” that the subject 12 intended, the subject 12 determines whether the answer result matches the presentation symbol (ST8). If it is determined that they match, the result is recorded in the recording area of the microprocessor 1a (ST9). Based on the operations from the above record presentation to recording, the eyesight is repeatedly determined enough to automatically judge the eyesight by the comprehensive judgment.

In ST8, if the answer result does not match the presentation symbol, the incorrect answer is recorded in the recording area of the microprocessor 1a (ST10). ST9, 1
0, after recording the correct or incorrect answer in the recording area of the microprocessor 1a, the microprocessor 1a
The determination unit of the microprocessor 1a determines whether or not sufficient data for visual acuity determination is available in the recording area of S (S).
T11). When the judgment unit judges whether or not the recording area of the microprocessor 1a has sufficient data for judgment of the visual acuity, the result of the visual acuity measurement is "Your visual acuity is the right eye".
1.2, 0.8 for the left eye. As described above, the subject 12 is informed by voice, and finally, the message "The visual acuity measurement is completed. Thank you." Is output and the visual acuity measurement is finished (ST12). When the determination unit determines that the recording area of the microprocessor 1a does not have sufficient data for visual acuity determination, the process jumps to ST2 and ST2 to ST1 is performed until data sufficient for visual acuity determination is available in the recording area.
Repeat up to 1.

FIG. 6 is a flow chart showing a procedure for simply performing visual acuity measurement using the visual acuity measuring apparatus of FIG. The microprocessor 1a causes the liquid crystal display section 2a to display a visual acuity test symbol having an appropriate size (ST13). The input voice input from the microphone 3 is recognized by the unspecified speaker word voice recognition unit 4a (ST14). The determination unit of the microprocessor 1a determines whether the voice recognition result of the input voice recognized by the unspecified speaker word voice recognition unit 4a is the same as the presentation symbol (ST15). When the determination unit of the microprocessor 1a determines that the voice recognition result is the same as the presentation symbol, the correct answer is recorded in the recording area of the microprocessor 1a (ST16). When the determination unit of the microprocessor 1a determines that the voice recognition result is not the same as the presentation symbol, the incorrect answer is recorded in the recording area of the microprocessor 1a (ST17).

After recording the correct answer or the incorrect answer in the recording area of the microprocessor 1a, the microprocessor 1a
The determination unit determines whether or not sufficient data for determining the visual acuity is stored in the recording area (ST18). When the determination unit determines whether or not sufficient data for visual acuity determination is available in the recording area of the microprocessor 1a, the result of the visual acuity measurement is "Your visual acuity is 1.2 for the right eye and 0.8 for the left eye." As described above, the subject 12 is informed by voice, and finally, the message "The visual acuity measurement is completed. Thank you." Is output and the visual acuity measurement is ended (ST19). Since the determination time can be shortened by performing the processing shown in the flow chart of the visual acuity determination described above, it is possible to shorten the visual acuity measurement time in the collective visual acuity measurement and provide a simple visual acuity measurement device. Will be possible.

Further, the visual acuity measurement data determined by the system control and visual acuity automatic determination unit 1 shown in FIG.
It becomes possible to create comprehensive health management data including visual acuity measurement data by automatically totaling. According to the above-described embodiment, the subject 12 shown in FIG. 3 answers the presented symbol or the like by voice, and the answer voice is recognized by the unspecified speaker word voice recognition unit 4a shown in FIG.
It becomes possible to automatically judge whether or not the presented symbol is correctly answered.

[0023]

As described above, according to the present invention, since the visual acuity can be automatically measured, the human cost at the time of measuring the visual acuity can be reduced. Further, according to the present invention, it is possible to quickly create a comprehensive medical examination data node by accumulating data.

[Brief description of drawings]

FIG. 1 is a block diagram of a visual acuity measuring apparatus applied to an embodiment of the visual acuity measuring method and apparatus of the present invention.

FIG. 2 is a block diagram of a visual acuity measuring device applied to one embodiment of the present invention.

FIG. 3 is an external view of a visual acuity measuring device applied to an example of the present invention.

FIG. 4 is an explanatory diagram of a visual acuity measuring device applied to one embodiment of the present invention, which is a block diagram showing the outline of the overall configuration.

FIG. 5 is a flowchart showing a procedure of performing visual acuity measurement using the visual acuity measurement device according to an embodiment of the present invention.

FIG. 6 is a flowchart showing a procedure for simply performing visual acuity measurement using the visual acuity measurement device of FIG.

FIG. 7 is a diagram showing an example of a visual acuity measurement table.

[Explanation of symbols]

 1 System control and visual acuity determination unit 1a Microprocessor 2 Image presentation unit 2a Liquid crystal display unit 3 Microphone 4 Voice recognition unit 4a Unspecified speaker word voice recognition unit 5 Voice response unit 5a ADPCM voice response unit 6 Speaker 7 Viewing window 8 Infrared Detector 8a Infrared detection switch 9 Visual acuity measurement main body 10 Visual acuity measurement device 15 Infrared lamp

Claims (8)

[Claims] 1. Presenting image information for measuring visual acuity, making a voice response to the presented image information, recognizing the answered voice, and confirming whether or not the presented image information is correctly answered. A visual acuity measurement method that automatically determines visual acuity. 2. Image information output means for outputting image information for measuring visual acuity, and voice recognition determination means for voice-inputting whether or not the presented image information is correctly answered and determining the voice. A visual acuity measuring device comprising: an automatic visual acuity determination unit that automatically determines a visual acuity according to a determination output output from a voice recognition determination unit. 3. The visual acuity measurement according to claim 2, comprising image information output means for outputting image information for visual acuity measurement, and means for responding by voice to the image information output from the image information output means. apparatus. 4. The eyepiece detection means detects that the subject is in the eye of a sight-viewing window, and in response to the detection, the image information output means starts presenting the image information. The visual acuity measuring device according to item 3. 5. The image information output means presents different image information of the same size when consecutively unable to answer the same image information, and presents larger image information when unable to answer. The visual acuity measuring device according to claim 4. 6. The visual acuity according to claim 2, wherein the voice recognition judging means recognizes whether the answer is correct or not, and judges whether or not the data necessary for the visual acuity judgment are prepared according to the recognition result. measuring device. 7. A means for automatically totaling visual acuity measurement data determined by said voice recognition determining means.
The visual acuity measuring device according to any one of 1. 8. The visual acuity measurement device according to claim 7, wherein the image information output means presents appropriate image information with reference to the result of automatic totalization by the automatic totalization means.