KR102209573B1 - Strabismus score assessmenting apparatus and mathod - Google Patents

Abstract

According to the strabismus moderate evaluation apparatus according to the present invention, a pupil photographing unit including a spectacle frame and a recognition camera provided in the spectacle frame to photograph both eyes; A pupil movement measurement unit that receives the binocular images photographed by the recognition camera and measures the movement displacement and strabismus frequency of the pupil; It provides a strabismus moderateness evaluation device including a moderate degree analysis unit for analyzing the moderateness of strabismus according to the pupil movement displacement and movement frequency measured by the pupil movement measurement unit.
According to the strabismus moderateness evaluation apparatus and strabismus moderateness evaluation method according to the present invention, it is possible to evaluate the strabismus moderateness according to the movement displacement and movement frequency of the pupil, thereby improving the accuracy of the strabismus moderateness determination. In addition, since the movement of the pupil can be photographed while wearing a glasses frame equipped with a recognition camera, it is possible to determine the displacement and frequency of movement of strabismus during daily life, thereby increasing the accuracy of strabismus judgment.

Description

Strabismus score assessment apparatus and mathod

The present invention is an apparatus and method for evaluating the strabismus moderateness, and more particularly, to a strabismus moderate evaluation apparatus and a strabismus moderate evaluation method capable of accurately determining the moderateness of strabismus of both eyes by measuring the movement displacement and movement frequency of the eyeball. About.

Strabismus refers to a condition in which two eyes are not aligned and look at different points, and when one eye is looking at the front, the other eye moves inward or outward, or moves up or down to cause eye displacement. . Among the symptoms of strabismus as described above, latent strabismus (intermittent strabismus or oblique strabismus) does not cause displacement of the eyeball when staring with both eyes at the same time. to be. In other words, in latent strabismus, eyeball displacement does not usually occur, but when fatigue or a situation in which the fusion of the two eyes is disturbed, eyeball displacement occurs and symptoms are complained.

Therefore, the strabismus is inspected through the displacement of both eyes, and Korean Patent Laid-Open No. 10-2017-0108961 has been disclosed as a method for examining strabismus.

Strabismus patients who have been examined for strabismus as described above can determine the timing of surgical treatment through a moderate evaluation of strabismus. In addition, if the eye displacement occurs with a large frequency, the use of stereoscopic vision and the use of both eyes at the same time may decrease, so the operation time should be proceeded earlier. On the other hand, when the fusion of both eyes is large and the ocular displacement occurs at a low frequency, the timing of the operation can be delayed. In particular, in the case of young children, it is desirable to delay the timing of surgery according to the evaluation of the severity of strabismus in order to tolerate surgical treatment as well as possible.

On the other hand, a method of evaluating the severity of strabismus is performed based on a questionnaire survey of the subject or guardian or by measuring the time when the subject fuses the eyes during treatment. Such an evaluation method has a disadvantage in that the evaluation can be changed according to the inspection situation, so that the moderate evaluation of strabismus is not objective. Accordingly, there is a need for an apparatus and method for evaluating the severity of strabismus by measuring the movement displacement and movement frequency of the eyeball in daily life.

The present invention was created in order to solve the above-described problems, and by measuring the movement displacement and frequency of movement of the eyeball in daily life, and measuring the moderateness of strabismus based on this, strabismus to objectively and accurately evaluate the moderateness of strabismus The purpose is to provide a moderate evaluation device and evaluation method.

The strabismus moderation evaluation apparatus according to the present invention for achieving the above object includes: a pupil photographing unit including a glasses frame and a recognition camera provided in the spectacle frame to photograph both eyes; A pupil movement measurement unit that receives the binocular images photographed by the recognition camera and measures the movement displacement and strabismus frequency of the pupil; And a moderate degree analysis unit for analyzing the moderate degree of strabismus according to the pupil movement displacement and movement frequency measured by the pupil movement measurement unit.

Preferably, the pupil movement measurement unit receives a pupil image captured by the pupil photographing unit and determines a movement displacement of the pupil, and the movement displacement determination unit strabismus based on the movement displacement and movement frequency of the pupil. It may include a strabismus frequency determination unit that determines the frequency.

The movement displacement determining unit of the present invention includes a pupil reference point setting unit for setting the center point of the pupil of both eyes as a pupil reference point, and a pupil reference point distance displacement determining unit for measuring the distance between the pupil reference points of both eyes set by the pupil reference point setting unit. In addition, the strabismus frequency determination unit may determine the strabismus frequency by measuring a frequency when the distance between the pupil reference points measured by the distance displacement determination unit is outside a preset normal range.

Alternatively, the movement displacement determination unit of the present invention includes an eyeglass reference point setting unit for setting a reference point of the center of the glasses as an eyeglass reference point, a pupil reference point setting unit for setting the center point of the pupil of both eyes as a pupil reference point, and the eyeglass reference point and the binocular And a spectacle reference distance displacement determining unit for measuring a value obtained by summing each distance between the pupil reference points of, and the strabismus frequency determining unit includes each of the spectacle reference points calculated by the distance displacement determining unit and the pupil reference points of both eyes. The strabismus frequency can be determined by measuring the frequency when the amount of change in the sum of the distances is out of the preset normal range.

The displacement determination unit of the present invention includes a displacement pupil reference point setting unit that sets the center point of the pupils of both eyes as a pupil reference point, and a rotation angle for calculating a rotation angle at which the pupil reference point set in the displacement pupil reference point setting unit of both eyes is rotated. A calculation unit and an angular displacement determining unit for measuring a bevel angle of both eyes by summing the rotation angles of both eyes calculated by the rotation angle calculation unit, and the strabismus frequency determination unit, the rotation of both eyes calculated by the angular displacement determining unit The strabismus frequency can be determined by measuring the frequency of the case where the amount of change in the angle of deviation of both eyes by adding the angles is out of the preset normal range.

In addition, the moderateness analysis unit may evaluate the moderateness of strabismus based on the strabismus frequency calculated by the strabismus frequency determination unit.

On the other hand, the present invention is a step of wearing glasses for a predetermined period of time to wear a glasses frame provided with a recognition camera for photographing each of both eyes; A pupil photographing step of photographing movements of both eyes through the recognition camera worn in the eyeglass wearing step; A pupil movement measurement step of receiving the pupil image photographed in the pupil photographing step and measuring the movement displacement and strabismus frequency of the pupil; And it is possible to provide a method for evaluating strabismus moderateness including a moderate analysis step of analyzing the moderateness of strabismus according to the movement displacement of the pupil and the strabismus frequency measured in the pupil movement measurement step.

The pupil movement measurement step of the present invention includes a movement displacement determination step of determining a movement displacement of the pupil by receiving a pupil image captured in the pupil photographing step, and a movement displacement and movement frequency of the pupil determined in the movement displacement determination step. And a strabismus frequency determination step of determining the strabismus frequency based on, and in the movement displacement determination step, the center point of the pupil of both eyes is set as a pupil reference point, and the distance displacement between the pupil reference points of both eyes is measured, and the movement displacement of the pupil In the step of determining the strabismus frequency, the strabismus frequency may be determined by measuring a frequency when the distance between the pupil reference points measured by the distance displacement determining unit is outside a preset normal range.

Alternatively, the movement displacement determination step of the present invention includes setting a reference point of the center of the glasses as a reference point of the eyeglasses, setting the center point of the pupil of both eyes as the reference point of the pupil, and summing the distance between the reference point of the eyeglasses and the reference point of the pupils of both eyes You can also judge the displacement of the pupil.

In addition, the movement displacement determination step of the present invention sets the center point of the pupils of both eyes as the pupil reference point, calculates the rotation angle at which the pupil reference points of both eyes rotate, and calculates the angle of angle obtained by summing the rotation angles of both eyes. You can also judge the displacement of the pupil.

According to the strabismus moderate evaluation device and strabismus moderate evaluation method according to the present invention, it is possible to evaluate the strabismus severity according to the movement displacement and movement frequency of the pupil, so that the quantitative measurement of strabismus and the severity can be simultaneously measured. This can be useful to increase the accuracy of strabismus moderate judgment.

In addition, since the movement of the pupil can be photographed while wearing a glasses frame equipped with a recognition camera, it is possible to determine the displacement and frequency of movement of strabismus during daily life, thereby increasing the accuracy of strabismus judgment.

1 is a perspective view schematically showing a perspective moderate evaluation apparatus according to an embodiment of the present invention,
Figure 2 is a configuration diagram of a pupil movement measurement unit of the strabismus moderate degree evaluation device shown in Figure 1,
3 is a configuration diagram of a movement displacement determination unit shown in FIG. 2;
4 is a state diagram showing a motion displacement determination state of the movement displacement determination unit shown in FIG. 3;
5 is a configuration diagram of a movement displacement determination unit according to another embodiment of the present invention;
6 is a state diagram showing a motion displacement determination state of the movement displacement determination unit of FIG. 5;
7 is a configuration diagram of a movement displacement determination unit according to another embodiment of the present invention;
8 is a state diagram showing a motion displacement determination state of the movement displacement determination unit of FIG. 7;
9 is a flowchart of a method for evaluating strabismus moderateness according to an embodiment of the present invention;
10 is a flow chart of the severity analysis step of the method for evaluating the strabismus moderate degree shown in FIG. 9.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so at the time of application, they are equivalent to It should be understood that there may be variations.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the strabismus moderate degree evaluation apparatus 10 according to an embodiment of the present invention includes a pupil photographing unit 100, a pupil movement measurement unit 200, and a moderate degree analysis unit 300. .

The pupil photographing unit 100 is for photographing the pupil of the subject, and includes a wearable eyeglass frame 110 and a recognition camera 120 provided in the eyeglass frame 110. The pupil imaging unit 100 may photograph both eyes of the subject using the recognition camera 120, and may be worn on the subject's eyes by the eyeglass frame 110. Accordingly, the subject lives after wearing the spectacle frame 110 for a preset time, in this case, the pupil imaging unit 100 moves the subject's pupils when performing a work looking away or looking closer. Take pictures continuously.

The pupil movement measurement unit 200 is for measuring the movement of the pupil by receiving the binocular image captured by the recognition camera 120, and using an eye tracking function capable of tracking the eye Movement displacement and movement frequency can be measured. The pupil movement measurement unit 200 may include a movement displacement determination unit 210 and a strabismus frequency determination unit 220.

The movement displacement determination unit 210 is for analyzing the movement displacement of the pupil, and receives a pupil image captured by the pupil photographing unit 100. The movement displacement determination unit 210 may determine the movement displacement of the subject's pupil through the subject's pupil image captured by the pupil imaging unit 100. The movement displacement determining unit 210 includes a displacement pupil reference point setting unit 211a and a pupil reference point distance displacement determining unit 212.

The displacement pupil reference point setting unit 211a sets the center points of the pupils of both eyes as pupil reference points E1 and E2. When the subject wears the eyeglass frame 110, the displacement pupil reference point setting unit 211a recognizes the subject's pupil and sets the center point of the subject's pupil as the pupil reference points E1 and E2.

The pupil reference point distance displacement determination unit 212 determines the movement displacement of the pupil using the pupil reference points E1 and E2. The pupil reference point distance displacement determining unit 212 continuously measures the distance EL between the pupil reference points E1 and E2 of both eyes set by the pupil reference point setting unit 211a, thereby moving the pupils of both eyes. Can judge.

The strabismus frequency determination unit 220 is for analyzing the frequency of occurrence of strabismus of the subject based on the displacement of the pupil.

The strabismus frequency determination unit 220 measures the displacement EL between the pupil reference points E1 and E2 of both eyes, and measures the strabismus frequency according to the distance displacement between the pupil reference points of both eyes. The strabismus frequency determination unit 220 determines that strabismus has occurred when the displacement EL between the pupil reference points E1 and E2 of both eyes is out of the normal range, and measures the strabismus frequency at which strabismus occurs for a certain period of time, Save it. At this time, the normal range and the strabismus range may be set by measuring the distance EL displacement caused by causing strabismus to the subject at the beginning of the examination before the subject wears the spectacle frame 110. In other words, by selectively shielding both eyes of the subject and conducting an alternating occlusion test, by inducing strabismus through dissociation of both eyes, measuring the distance value between the pupil reference points (E1, E2) when strabismus is triggered, You can set the range. Accordingly, the strabismus frequency determination unit 220 may measure and store the strabismus frequency by comparing the distance EL displacement between the preset normal range and the pupil reference points E1 and E2 of both eyes. For example, if the normal distance between the pupil reference points (E1, E2) of both eyes is EL1, the normal range between the pupil reference points (E1, E2) may be referred to as EL1±5%. When the subject moves their gaze while being active, the pupil imaging unit 100 continuously measures the distance EL between the pupil reference points E1 and E2 of the both eyes, and one of the eyes becomes abnormal inward or outward. When the distance between the pupil reference points by moving is out of the normal range, the strabismus frequency determining unit 220 determines that strabismus has occurred and records the number of occurrences of strabismus.

This is repeated for a certain period of time, and the strabismus frequency determining unit 220 measures and stores the strabismus frequency occurring for a certain period of time.

The moderate degree analysis unit 300 determines the moderate degree of strabismus based on the strabismus frequency measured by the strabismus frequency determination unit 220. The severity of strabismus can be determined by the frequency at which strabismus occurs. For example, if the frequency of occurrence of strabismus is less than 20% of the total, it is judged as “need to follow up”, and if the frequency of occurrence of strabismus is 20-50% of the total, it is “mild”, and if it is more than 50% In the case, the severity of strabismus can be determined and provided to the user based on “severe and need for surgery”.

Meanwhile, referring to FIGS. 5 and 6, the movement displacement determination unit 1210 according to another embodiment of the present invention includes an eyeglass reference point setting unit 1213, a displacement pupil reference point setting unit 1211b, and an eyeglass reference distance. It may include a displacement determining unit 1214.

The eyeglass reference point setting unit 1213 sets the center of the eyeglasses as the eyeglass reference point G. The eyeglass reference point setting unit 1213 may set a center of the eyeglasses, which is the center of the eyeglass frame 110, as the eyeglass reference point G.

The displacement pupil reference point setting unit 1211b sets the center points of the pupils of both eyes as pupil reference points E1 and E2. When the subject wears the eyeglass frame 110, the displacement pupil reference point setting unit 1211b recognizes the subject's pupil and sets the center point of the subject's pupil as the pupil reference points E1 and E2.

The eyeglass reference distance displacement determination unit 1214 determines the movement displacement of the pupil using the eyeglass reference point G and the pupil reference points E1 and E2.

The eyeglass reference distance displacement determination unit 1214 calculates the sum of the distances GL1 and GL2 between the pupil reference points E1 and E2 of both eyes set by the displacement pupil reference point setting unit 1211b and the eyeglass reference point G. Can be used to determine the displacement of the pupil.

The eyeglass reference distance displacement determining unit 1214 continues the distances (GL1, GL2) between the pupil reference points E1 and E2 of both eyes set by the pupil reference point setting unit 1211b and the eyeglass reference point G. Measurement is performed, and a value obtained by summing the measured distances GL1 and GL2 is calculated.

The strabismus frequency determination unit 1220 is the sum of the distances GL1 and GL2 between the pupil reference points E1 and E2 of both eyes and the eyeglass reference points G calculated by the eyeglass reference distance displacement determination unit 1214. Based on this, the frequency of occurrence of strabismus in the subject is judged.

The strabismus frequency determination unit 1220 determines that strabismus has occurred when the sum of the distances GL1 and GL2 between the pupil reference points E1 and E2 of both eyes and the eyeglass reference points G is outside the normal range, The strabismus frequency at which strabismus occurs for a certain period of time is measured and stored. At this time, the normal range and the strabismus range may be set by measuring the distance displacement caused by causing strabismus to the subject at the beginning of the examination before the subject wears the spectacle frame 110. In other words, by selectively shielding both eyes of the subject and performing an alternating occlusion test, and by causing strabismus through dissociation of both eyes, the distance between the pupil reference points (E1, E2) and the eyeglass reference points (G) when strabismus is induced ( By measuring the sum value (GL1+GL2) of GL1 and GL2), the normal range and the strabismus range can be set. Accordingly, the strabismus frequency determination unit 220 calculates the sum value (GL1 + GL2) of the preset normal range and the distances GL1 and GL2 between the pupil reference points E1 and E2 of both eyes and the eyeglass reference points G. Compare and measure and store the strabismus frequency. For example, if the normal value of the sum of the distances (GL1, GL2) between the pupil reference points (E1, E2) and the eyeglass reference points (G) of both eyes (GL1 + GL2) is GL3, the pupils of both eyes The normal range of the sum of the distances GL1 and GL2 between the reference points E1 and E2 and the eyeglass reference points G may be said to be GL3±5%. When the examinee moves his gaze while active, the pupil photographing unit 100 photographs the movement of both eyes, and the eyeglass reference distance displacement determination unit 1214 includes the pupil reference points E1 and E2 of both eyes and the eyeglass reference point G. After measuring the distances (GL1, GL2) with ), the sum of these distances (GL1 + GL2) is continuously calculated. The sum of the distances (GL1, GL2) between the pupil reference points (E1, E2) and the spectacle reference points (G) of both eyes (GL1 + GL2) is in the normal range due to the abnormal movement inward or outward. If it deviates from, the strabismus frequency determination unit 1220 determines that strabismus has occurred and records the number of occurrences of strabismus.

This is repeated for a certain period of time, and the strabismus frequency determining unit 1220 measures and stores the strabismus frequency occurring for a certain period of time.

7 and 8, the movement displacement determination unit 2210 of another embodiment of the present invention includes a displacement pupil reference point setting unit 2213, an angle reference point setting unit 2211b, and an angular displacement determining unit 2214. It may include.

The displacement pupil reference point setting unit 2213 sets the center points of the pupils of both eyes as pupil reference points E1 and E2. When the subject wears the eyeglass frame 110, the displacement pupil reference point setting unit 2213 recognizes the subject's pupil and sets the center point of the subject's pupil as the pupil reference points E1 and E2.

The rotation angle calculation unit 2213 is for calculating the rotation angles α and β of both eyes, and the rotation angle of both eyes at which the pupil reference points E1 and E2 set in the displacement pupil reference point setting unit 2213 rotate Calculate (α,β). The rotation angle calculation unit 2213, when the subject wears the glasses frame 110, recognizes the subject's pupil through the recognition camera 120, and the rotation angle of both eyes is displayed as a direction (vector) value, and the horizontal It is possible to calculate the degree of rotation. In other words, the rotation angle calculation unit 2213 determines the rotation angle (α, β) of both eyes, the rotation angle α of the pupil at which the pupil reference point E1 is rotated, and the pupil at which the pupil reference point E2 is rotated. It is calculated by the rotation angle (β) of.

)을 측정한다. 상기 각도변위판단부(2214)는 양안의 회전각도(α,β)를 합산(α+β)하여 동공의 사시각(

)을 측정할 수 있다. 즉 상기 회전각산출부(2213)는, 양안의 회전각도(α,β)를 계속하여 측정하고, 상기 각도변위판단부(2214)는 측정된 회전각도(α,β)의 합산값(α+β)을 사시각(

)으로 산출한다. 예를 들어, 좌안의 동공기준점(E1)이 좌측으로 10도(α) 회전하고, 우안의 동공기준점(E2)이 우측으로 5도(β)회전하면, 양안은 정면을 기준으로 15도가 회전하였다고 판단하여 사시각(

)이 15도인 외편위가 발생했다고 판단할 수 있다.The angle displacement determining unit 2214 is based on the rotation angles α and β of the both eyes at which the pupil reference points E1 and E2 of both eyes calculated by the rotation angle calculating unit 2213 are rotated.

) Is measured. The angular displacement determining unit 2214 adds up (α+β) the rotation angles (α, β) of both eyes, and the oblique angle of the pupil (

) Can be measured. That is, the rotation angle calculation unit 2213 continuously measures the rotation angles (α, β) of both eyes, and the angular displacement determination unit 2214 is the sum of the measured rotation angles (α, β) (α+ β) is the angle of view (

). For example, if the pupil reference point (E1) in the left eye rotates 10 degrees (α) to the left and the pupil reference point (E2) in the right eye rotates 5 degrees (β) to the right, both eyes rotated 15 degrees from the front. Judging the angle of view (

It can be determined that an external deviation of 15 degrees) has occurred.

)에 기초하여 피검자의 사시가 발생하는 빈도를 분석한다. The strabismus frequency determination unit 2220 is the strabismus angle of the both eyes calculated by the angular displacement determination unit 2214 (

), the frequency of occurrence of strabismus in the subject is analyzed.

)의 값이 정상범위를 벗어나는 경우 사시가 발생하였다고 판단하며, 일정시간동안 사시가 발생하는 사시빈도를 측정, 저장한다. 이때 상기 정상범위 및 사시범위는, 피검자가 상기 안경프레임(110)을 착용하기 전 검사 초기에 피검자에게 사시를 유발하여, 발생되는 사시각(

)을 측정함으로써 설정할 수 있다. 즉, 피검자의 양안을 선택적으로 차폐하여 교대 가림검사를 실시하며, 양안의 해리를 통하여 사시를 유발함으로써, 사시가 유발되었을 때의 양안의 회전각도(α,β)의 합산값(α+β)을 측정하여 사시각(

)을 측정하여 정상범위 및 사시범위를 설정할 수 있다. 따라서, 상기 사시빈도 판단부(2220)는 기설정된 상기 정상범위의 사시각(

)과, 발생된 양안의 사시각(

)을 비교하여 사시빈도를 측정, 저장할 수 있다. 예를 들어, 상기 양안의 사시각(

)의 정상값을

1 이라 하는 경우, 상기 양안의 회전각도(α,β)의 합산값(α+β)의 정상범위는

1±5% 라고 할 수 있을 것이다. 피검자가 활동하면서 시선을 움직이면, 상기 동공촬영부(100)는 양안의 움직임을 촬영하고, 상기 사시빈도 판단부(2220)는 양안의 회전각도(α,β)의 합산값(α+β)인 사시각(

)을 연속적으로 측정한다. 양안 중 한 쪽의 눈이 내측 또는 외측으로 비정상으로 이동하여 상기 양안의 양안의 회전각도(α,β)의 합산값(α+β)인 사시각(

)이 정상범위를 벗어나는 경우, 상기 사시빈도 판단부(2220)는 사시가 발생하였다고 판단하고, 사시발생 회수를 기록한다. The strabismus frequency determination unit 2220 is the strabismus angle of the subject (

If the value of) is out of the normal range, it is judged that strabismus has occurred, and the frequency of strabismus occurring for a certain period of time is measured and stored. In this case, the normal range and the strabismus range are the strabismus angle generated by causing strabismus to the subject at the beginning of the examination before the subject wears the spectacle frame 110,

It can be set by measuring ). In other words, by selectively shielding both eyes of the subject to perform alternate occlusion tests, and by causing strabismus through dissociation of both eyes, the sum of the rotation angles (α, β) of both eyes when strabismus is induced (α+β) Measure the angle of view (

) Can be measured to set the normal range and the strabismus range. Therefore, the strabismus frequency determination unit 2220 is a strabismus angle of the preset normal range (

) And the angle of deviation of both eyes (

) Can be compared to measure and store the strabismus frequency. For example, the angle of view of both eyes (

) The normal value of

In the case of 1, the normal range of the sum (α+β) of the rotation angles (α, β) of the both eyes is

It can be said to be 1±5%. When the subject moves their gaze while being active, the pupil photographing unit 100 photographs the movement of both eyes, and the strabismus frequency determination unit 2220 is the sum of the rotation angles α and β of both eyes (α+β). Angle of angle (

) Is measured continuously. The deviation angle (α+β), which is the sum of the rotation angles (α, β) of both eyes of the both eyes (

) Is out of the normal range, the strabismus frequency determination unit 2220 determines that strabismus has occurred and records the number of occurrences of strabismus.

This is repeated for a predetermined period of time, and the strabismus frequency determining unit 2220 measures and stores the strabismus frequency occurring for a predetermined time.

On the other hand, Figure 9 is a flow chart showing the strabismus moderate evaluation method (S10) of the present invention. 9, the strabismus moderateness evaluation method (S10) relates to a method of evaluating the strabismus moderateness using the strabismus moderateness evaluation apparatus 10. Here, the same reference numerals of the strabismus moderation evaluation apparatus 10 are the same members having the same configuration and function, so a repetitive description will be omitted. The strabismus moderate evaluation method (S10) includes wearing glasses (S100), photographing a pupil (S200), measuring pupil movement (S300), and analyzing a moderate degree (S400).

The spectacle wearing step (S100) is a step in which the examinee wears the spectacle frame 110, and in the spectacle wearing step (S100), the spectacle frame 110 is provided with a recognition camera 120 for photographing each of both eyes. By wearing it, it is possible to undergo a strabismus test for a preset time.

In the pupil photographing step (S200), each movement of both eyes is photographed through the recognition camera 120 worn in the eyewear wearing step (S100).

The pupil photographing step (S200) is for photographing the pupil of the subject, and both eyes of the subject may be photographed using the recognition camera 120 worn in the eyeglass wearing step (S100). By living after wearing the eyeglass frame 110 through the pupil photographing step (S200), the examinee may continuously photograph the movement of the pupil of the subject during daily life.

The pupil movement measurement step (S300) is to receive the binocular image captured in the pupil photographing step (S200) and measure the movement of the pupil, and may measure the movement displacement and the movement frequency of the pupil. The pupil movement measurement step (S300) includes a movement displacement determination step (S310) and a strabismus frequency determination step (S320).

The movement displacement determination step (S310) is for analyzing the movement displacement of the pupil, and the pupil image captured in the pupil photographing step (S200) is received. In the movement displacement determination step S310, the movement displacement of the subject's pupil may be determined through the subject's pupil image captured in the pupil photographing step S200.

In an embodiment of the movement displacement determination step (S310), the center point of the pupil of both eyes is set as the pupil reference points (E1, E2), and the distance (EL) displacement between the pupil reference points (E1, E2) of both eyes is measured. You can judge the displacement of the pupil.

In addition, as another embodiment of the movement displacement determination step (S310), the movement displacement determination step (S310) sets the center of the eyeglass frame 110 to the eyeglass reference point (G), and sets the center point of the pupils of both eyes to the pupil. It is possible to determine the displacement of the pupil by setting it as the reference points E1 and E2. That is, in the movement displacement determination step (S310), the displacement of the distances (GL1, GL2) between the eyeglass reference point G and the pupil reference points E1 and E2 of both eyes is summed, and the sum value (GL1 + GL2) is moved to the pupil. The displacement can be judged.

)을 측정함으로써, 동공의 이동변위를 판단할 수 있다. In another embodiment of the movement displacement determination step (S310), the movement displacement determination step (S310) sets the center point of the pupils of both eyes as the pupil reference points (E1, E2), and the pupil reference points (E1, E2) of both eyes Calculate the rotation angles (α, β) of ), and add the rotation angles (α, β) (α+β) to the pupil's oblique angle (

), it is possible to determine the displacement of the pupil.

The strabismus frequency determination step (S320) is for analyzing the frequency of occurrence of strabismus of the pupil, and the frequency of occurrence of strabismus is determined based on the movement displacement of the pupil determined in the movement displacement determination step (S310).

The strabismus frequency determination step (S320) measures the frequency when the distance (EL) between the pupil reference points (E1, E2) of both eyes measured in the movement displacement determination step (S310) deviates from a preset reference value that is a normal range. The strabismus frequency can be judged.

)이 정상범위인 기설정된 기준값을 벗어나는 경우의 빈도를 측정하여 사시빈도를 측정할 수도 있다. In addition, in the strabismus frequency determination step (S320), the sum of the distances between the eyeglass reference points G and the pupil reference points E1 and E2 of both eyes (GL1+GL2) or the rotation angles (α, β) The pupil's deviation angle calculated by summing (α+β) (

The strabismus frequency can also be measured by measuring the frequency when) is out of the preset reference value, which is the normal range.

)을 측정하여 정상범위 및 사시범위를 기설정된 기준값으로 설정할 수 있다. 따라서, 상기 사시빈도 판단단계(S320)는, 기설정된 상기 정상범위와 양안의 이동변위를 비교하여 사시빈도를 측정, 저장할 수 있다. On the other hand, the normal range and the strabismus range may be set by measuring the displacement of the eyeball caused by causing strabismus to the subject at the beginning of the examination before the subject wears the spectacle frame 110. In other words, by selectively shielding both eyes of the subject and conducting an alternate occlusion test, and by causing strabismus through dissociation of both eyes, the distance (EL) between the pupil reference points (E1, E2) when the strabismus is triggered, the pupil reference point (E1) ,E2) and the distance (GL1, GL2) between the eyeglass reference points (G) (GL1 + GL2), and the angle of view of the pupil calculated by summing the rotation angles (α, β) (α + β) (

) Can be measured to set the normal range and the strabismus range as a preset reference value. Accordingly, in the step of determining the strabismus frequency (S320), the strabismus frequency may be measured and stored by comparing the preset normal range with the displacement of both eyes.

According to the strabismus moderate evaluation device and the strabismus moderate evaluation method according to the present invention, the movement of the pupil can be photographed while wearing a glasses frame equipped with a recognition camera, so that the movement displacement and movement frequency of the strabismus can be determined during daily life. By being able to measure strabismus, it is possible to simultaneously measure the severity and quantitative measurement of strabismus, so it is useful to diagnose strabismus and determine the timing of treatment.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: strabismus moderate evaluation device 100: pupil imaging unit
110: glasses frame 120: recognition camera
200: pupil movement measurement unit 210: movement displacement determination unit
220: strabismus frequency determination unit 300: moderate analysis unit

Claims (15)

A pupil photographing unit including a spectacle frame and a recognition camera provided in the spectacle frame to photograph both eyes;
A pupil movement measurement unit that receives the binocular images photographed by the recognition camera and measures the movement displacement and strabismus frequency of the pupil;
A strabismus moderateness evaluation device comprising a moderate degree analysis unit for analyzing the degree of strabismus according to the pupil movement displacement and movement frequency measured by the pupil movement measurement unit. The method according to claim 1,
The pupil movement measurement unit,
A movement displacement determination unit that receives the pupil image photographed by the pupil imaging unit and determines the movement displacement of the pupil;
A strabismus moderation evaluation device including a strabismus frequency determination unit that determines a strabismus frequency based on the movement displacement and movement frequency of the pupil of the movement displacement determination unit. The method according to claim 2,
The movement displacement determination unit,
A pupil reference point setting unit that sets the center point of the pupil of both eyes as the pupil reference point,
A strabismus moderate evaluation device comprising a pupil reference point distance displacement determining unit for measuring a distance between the pupil reference points of both eyes set by the pupil reference point setting unit. The method of claim 3,
The strabismus frequency determination unit,
A strabismus moderate evaluation device for determining a strabismus frequency by measuring a frequency when the distance between the pupil reference points measured by the distance displacement determining unit is outside a preset normal range. The method according to claim 2,
The movement displacement determination unit,
An eyeglass reference point setting unit that sets a reference point of the center of the glasses as an eyeglass reference point,
A pupil reference point setting unit that sets the center point of the pupil of both eyes as the pupil reference point,
A strabismus moderate evaluation apparatus comprising a spectacle reference distance displacement determining unit that measures a value obtained by summing each distance between the spectacle reference point and the pupil reference point of both eyes. The method of claim 5,
The strabismus frequency determination unit,
A strabismus moderate evaluation device for determining the strabismus frequency by measuring the frequency of a case where the amount of change in the sum of the respective distances between the eyeglass reference point and the pupil reference point of both eyes calculated by the distance displacement determination unit is outside a preset normal range.
The method according to claim 2,
The movement displacement determination unit,
A displacement pupil reference point setting unit that sets the center point of the pupils of both eyes as the pupil reference point,
A rotation angle calculation unit for calculating a rotation angle at which the pupil reference point set by the displacement pupil reference point setting unit of both eyes is rotated,
A strabismus moderateness evaluation device comprising an angular displacement determining unit for measuring the angle of deviation of both eyes by summing the rotation angles of both eyes calculated by the rotation angle calculation unit. The method of claim 7,
The strabismus frequency determination unit,
A strabismus moderate evaluation device for determining the strabismus frequency by measuring the frequency when the amount of change in the strabismus angle of both eyes, which is calculated by the angular displacement determination unit, is outside a preset normal range. The method according to claim 2,
The moderate analysis unit,
A strabismus moderateness evaluation device that evaluates the moderateness of strabismus based on the strabismus frequency calculated by the strabismus frequency determination unit. Glasses wearing step of wearing glasses frame provided with recognition cameras for photographing each of both eyes for a predetermined time;
A pupil photographing step of photographing movements of both eyes through the recognition camera worn in the eyeglass wearing step;
A pupil movement measurement step of receiving the pupil image photographed in the pupil photographing step and measuring the movement displacement and strabismus frequency of the pupil; And
A method for evaluating the severity of strabismus, including a moderate analysis step of analyzing the severity of strabismus according to the displacement of the pupil and the strabismus frequency measured in the pupil movement measurement step. The method of claim 10,
The pupil movement measurement step,
A movement displacement determination step of determining a movement displacement of the pupil by receiving the pupil image photographed in the pupil photographing step;
A method for evaluating the severity of strabismus comprising a strabismus frequency determination step of determining a strabismus frequency based on the movement displacement and the movement frequency of the pupil determined in the movement displacement determination step. The method of claim 11,
The moving displacement determining step,
A method for evaluating the strabismus moderate to determine the displacement of the pupil by setting the center point of the pupil of both eyes as the pupil reference point, and measuring the distance displacement between the pupil reference points of both eyes.
The method of claim 12,
The step of determining the strabismus frequency,
A method for evaluating strabismus moderate to determine the strabismus frequency by measuring the frequency of the case where the movement displacement of the pupil determined in the movement displacement determination step is out of a preset normal range. The method of claim 11,
The moving displacement determining step,
The strabismus moderate evaluation method for determining the displacement of the pupil by setting the center of the eyeglass frame as the eyeglass reference point, setting the center point of the pupils of both eyes as the pupil reference point, and summing the distance between the eyeglass reference point and the pupil reference point of both eyes. The method of claim 11,
The moving displacement determining step,
A strabismus moderate evaluation method that determines the displacement of the pupil by setting the center point of the pupil of both eyes as the pupil reference point, calculating the rotation angle at which the pupil reference point of both eyes rotates, and calculating the strabismus angle obtained by summing the rotation angles of both eyes.

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