KR102535860B1 - Intermittent exotropia severity evaluation method and intermittent exotropia severity evaluation device using the same - Google Patents

Abstract

The present invention is a method for evaluating the severity of intermittent exotropia for evaluating the severity of intermittent exotropia, comprising the steps of wearing a spectacle body having a shield capable of adjusting transmittance; a step of gradually reducing the transmittance of the cover provided on the side of the non-main eye of the measurer wearing the spectacle body; A non-focusing eye observation step of observing whether exotropia is induced in the non-focusing eye of the measurer when the transmittance of the non-focusing eye side of the measurer is gradually reduced; And a transmittance measurement step of measuring the transmittance of the occluder when exotropia is induced in the observer's non-visual eye, and measuring the transmittance of the occluder at the time when exotropia is induced in the non-visual eye to evaluate the severity of intermittent exotropia. Provided is an intermittent exotropia severity evaluation method and an intermittent exotropia severity evaluation device using the same.
Therefore, the severity of fusion of both eyes and intermittent exotropia can be objectively measured and evaluated, and the severity of fusion of both eyes and intermittent exotropia can be easily and accurately measured and evaluated in a short time.

Description

Intermittent exotropia severity evaluation method and intermittent exotropia severity evaluation device using the same}

The present invention relates to a method for evaluating the severity of intermittent exotropia and an apparatus for assessing the severity of intermittent exotropia using the same, and more particularly, to a method for objectively evaluating the severity of intermittent exotropia and an apparatus for evaluating the severity of intermittent exotropia used to evaluate the severity of intermittent exotropia. it's about

Strabismus is a condition in which the two eyes are not aligned and looking at different points, and when one eye is looking at the front, the other eye moves inward or outward, or moves up or down, resulting in eyeball displacement. . Among the symptoms of strabismus as described above, latent strabismus (intermittent strabismus or phoria) is a strabismus in which the displacement of the eyeball does not occur when both eyes gaze at the same time, and the displacement appears when one eye is blocked to prevent the fusion of the two eyes. That is, in latent strabismus, eyeball displacement does not normally occur, but when fatigue or a situation in which the fusion of the two eyes is hindered, ocular displacement occurs and the symptoms are complained of.

Therefore, strabismus is tested through the movement displacement of both eyes, and Korean Patent Publication No. 10-2017-0108961 has been disclosed as a method for inspecting strabismus.

Strabismus patients who have been examined for strabismus as described above can determine the timing of surgical treatment in order to evaluate the severity of strabismus. In other words, when ocular displacement occurs with a high frequency, the use of stereopsis and simultaneous use of both eyes may decrease, so the surgical timing should be advanced. On the other hand, if the fusion of both eyes is large and ocular displacement occurs less frequently, the timing of surgery 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 so that they can withstand surgical treatment, if possible.

On the other hand, a method for evaluating the severity of strabismus is performed by measuring the time for the subject to fuse their eyes during medical treatment or based on a questionnaire survey of the subject or guardian. This evaluation method has disadvantages in that evaluation of the severity of strabismus is not objective because the evaluation can be changed depending on the examination situation, and it takes a lot of time while observing and recording both eyes of the subject. Therefore, there is a demand for a method and apparatus capable of objectively and conveniently evaluating the severity of strabismus.

The present invention was created to meet the above situation, and when the transmittance of the shield provided on the side of the non-main eye of the measurer is gradually reduced, it is observed whether exotropia is induced in the gaze of the measurer at the time when exotropia is induced. The purpose is to provide an intermittent exotropia severity evaluation method that can objectively measure the severity of intermittent exotropia by measuring the permeability of the shield and an intermittent exotropia severity evaluation device using the same.

In order to achieve the above object, the present invention provides a method for evaluating the severity of intermittent exotropia for evaluating the severity of intermittent exotropia. a step of gradually reducing the transmittance of the cover provided on the side of the non-main eye of the measurer wearing the spectacle body; A non-focusing eye observation step of observing whether exotropia is induced in the non-focusing eye of the measurer when the transmittance of the non-focusing eye side of the measurer is gradually reduced; And a transmittance measurement step of measuring the transmittance of the occluder when exotropia is induced in the observer's non-visual eye, and measuring the transmittance of the occluder at the time when exotropia is induced in the non-visual eye to evaluate the severity of intermittent exotropia. Provides a method for assessing the severity of intermittent exotropia with

In the method for evaluating the severity of intermittent exotropia according to the present invention, the step of reducing the transmittance of the shield is a step of setting the shield to set the transmittance of the shield to 100%, and gradually reducing the transmittance of the shield by 2% at 1 second intervals. steps may be included.

The shielding unit may be a liquid crystal display (LCD) or polymer dispersed liquid crystal (PDLC) film whose transmittance is controlled by an applied voltage, and the voltage applied to the shielding unit may be controlled by a control unit.

The non-focusing eye observation step includes a non-focusing eye imaging step of photographing the user's non-focusing eye using the vision unit, and an exotropia examination of checking whether exotropia is caused by examining whether the pupil deviate from the set range in the image captured by the vision unit. steps may be included.

The image captured by the vision unit may be transmitted in real time to the control unit, and the control unit may determine whether exotropia is caused by checking whether the pupil of the transmitted image is out of a preset range, and the occlusion in the transmittance measurement step Negative transmittance may be measured by the control unit.

In addition, the present invention is a spectacle body worn by a measurer for measuring the severity of intermittent exotropia; a cover provided on the spectacle body and having transmittance controlled by an applied voltage; a vision unit provided to be spaced apart from the spectacle body and photographing the measurer's non-main eye when the transmittance of the shielding portion on the non-main eye side of the measurer gradually decreases; And adjusting the voltage applied to the occlusion unit, the image captured by the vision unit is transmitted in real time, and checking whether the pupil of the transmitted image is out of a predetermined setting range to determine whether exotropia is caused, and the non-judgment Provided is an intermittent exotropia severity evaluation device including a control unit that measures the severity of intermittent exotropia by measuring the transmittance of the shield at the time point when exotropia is induced in the cyan.

In the intermittent exotropia severity evaluation device according to the present invention, the shielding portion may be a liquid crystal display (LCD) or polymer dispersed liquid crystal (PDLC) film whose transmittance is adjusted by an applied voltage.

The control unit may set the transmittance of the shielding unit to 100% and then gradually decrease it by 2% at intervals of 1 second.

The method for evaluating the severity of intermittent exotropia and the severity evaluation device for intermittent exotropia using the same according to the present invention can objectively measure and evaluate the severity of fusion of both eyes and intermittent exotropia, and can quickly and conveniently measure the severity of fusion of both eyes and intermittent exotropia. It can be measured and evaluated accurately, and by using the measured data, it is possible to determine whether and when to undergo surgery.

1 is a flow chart illustrating a sequence of a method for evaluating the severity of intermittent exotropia according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a detailed sequence of the step of reducing transmittance of the shield shown in FIG. 1 .
FIG. 3 is a flowchart illustrating a detailed sequence of the non-focus eye observation step shown in FIG. 1 .
4 is a diagram schematically illustrating the configuration of an apparatus for assessing severity of intermittent exotropia according to another embodiment of the present invention.
FIG. 5 is a diagram schematically illustrating a process of photographing a non-focusing eye in a state in which transmittance of an occluder on the side of the non-focusing eye is reduced in the apparatus for assessing the severity of intermittent exotropia shown in FIG. 4 .
6 is a diagram schematically illustrating a process in which the control unit determines whether exotropia is induced in the non-visual eye.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventor appropriately uses the concept of terms in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on a definable principle.

Referring to FIG. 1, the method for evaluating the severity of intermittent exotropia according to an embodiment of the present invention includes wearing a glasses body (S10), reducing permeability of the chin portion (S20), observing a non-focused eye (S30), and measuring transmittance Step (S40) is included.

1 and 4, in the step of wearing the glasses body (S10), the glasses body 110 equipped with a shield 120 capable of adjusting the transmittance by the voltage applied by the measurer for measuring the severity of intermittent exotropia This is the stage of wearing.

The glasses body 110 is provided with a pair of insertion holes 112 into which the cover part 120 is inserted, and the glasses body 110 is provided with a pair of leg parts 114 seated on the ears of the measurer. Preferably, the transmittance of the covering portion 120 inserted into the insertion hole 112 is adjusted by an externally applied voltage, and the covering portion 120 is LCD (Liquid Crystal Display) or PDLC (polymer dispersed liquid crystal) A film is preferably used.

Referring to FIGS. 1, 2, and 4, after the wearing of the glasses body (S10), a step (S20) of reducing transmittance of the shielding unit is performed, and the step of reducing the transmittance of the shielding unit (S20) ) is a step of gradually reducing the transmittance of the covering part 120 provided on the side of the non-focusing eye of the measurer wearing the .

The step of reducing the transmittance of the shielding unit (S20) includes setting the shielding unit (S21) and gradually reducing the shielding unit (S22). The shield setting step (S21) is a step of setting the transmittance of the shield 120 to be 100%. is applied to set the transmittance of the shielding portion 120 provided on the side of the measurer's non-focusing eye to be 100%.

After passing through the shield setting step (S21), a gradual reduction of the shielding unit (S22) is performed. This is a gradual decrease.

As the voltage applied by the control unit 140 is changed, the transmittance of the covering part 120 provided on the non-maintenance side of the measurer is changed, so that the image of the object visible to the measurer on which the cover part 120 is mounted is changed. and the transmittance decreases as the intensity of the applied voltage decreases. It is preferable that the transmittance of the shielding unit 120 provided on the non-main eye side of the measurer by the control unit 140 is reduced by 2% at intervals of 1 second, but is not limited thereto, and transmittance by 1% at intervals of 1 second can be reduced, and the transmittance reduction rate is preferably adjusted to increase or decrease the accuracy of the evaluation.

Referring to FIGS. 1 and 3, after the occluder reduction step (S20), a non-main sight observation step (S30) is performed. ) is a step to observe whether exotropia is induced in the eyes of the observer when the permeability of ) is gradually reduced.

Referring to FIGS. 3 and 5 , the non-focus eye observation step (S30) includes a non-focus eye imaging step (S31) and an exotropia examination step (S32). The non-focusing eye photographing step (S31) is a step of capturing the measurer's non-focusing eye using the vision unit 130, and the vision unit 130 tilts the pupil at a position where the visual axis is not covered by the glasses body 110. It is provided to be able to observe, and the vision unit 130 includes a first vision 131 and a second vision 132 . The first vision 131 is provided in the cover part 120 on one side provided in the glasses body 110 and the second vision 132 is provided in the cover part 120 on the other side, and the glasses body ( 110), the main eye and the non-focus eye can be changed according to the measurer wearing the first vision 131 or the second vision 132 when the transmittance of the non-focus eye is gradually reduced, and the first vision 131 or the second vision 132 captures and captures the non-focus eye of the measurer. One image is transmitted to the controller 140 .

3 and 6, after the main eye photographing step (S31), an exotropia test step (S32) is performed. In the exotropia test step (S32), the control unit 140 is This is a step of checking whether exotropia is caused by examining whether the pupil (P) deviate from the virtual set range (A) in the photographed image.

The pupil (P) image of the measurer photographed by the vision unit 130 is transmitted in real time to the controller 140, and the controller 140 transmits the image of the pupil (P) photographed by the vision unit 130 to the pupil. It is examined whether exotropia is induced by checking whether or not it has deviated to the outside of the virtual setting range (A) set in a circular shape on the outside of (P). In addition, whether or not exotropia is caused is determined by the deviation of the pupil of the non-focusing eye captured by the vision unit 130 to the outside of the preset virtual setting range, even if the pupil of the main eye and the pupil of the non-focusing eye move at the same time. When this is far away, it can be judged that exotropia has been induced in the non-visual eye.

Referring to FIG. 1, after passing through the non-focusing eye observation step (S30), a transmittance measuring step (S40) is performed, and the transmittance measuring step (S40) is an exotropia in the non-focusing eye of the measurer in the non-focusing eye observation step (S30). is a step of measuring the transmittance of the shielding portion 120 that gradually covers the non-focusing eye of the measurer when induced, and the transmittance of the shielding portion 120 on the non-focusing eye side is measured by the control unit 140, The degree of severity of intermittent exotropia is objectively evaluated by measuring the permeability of the occluder 120 on the side of the observer's non-focusing eye at the time point of induction and, conversely, evaluating the ability to suppress intermittent exotropia.

Referring to FIG. 4 , the apparatus 100 for assessing the severity of intermittent exotropia according to the present invention includes a glasses body 110, a shielding unit 120, a vision unit 130, and a control unit 140.

The glasses body 110 is worn by a measurer to measure the severity of intermittent exotropia, and the glasses body 110 is a pair into which a shield 120 to be described below is inserted to blur the image of an object visible to the measurer. It includes an insertion hole 112 and a pair of leg parts 114 provided to correspond to both ends of the glasses body 110, and the glasses body 110 is a general bar, and detailed description thereof to omit

A covering portion 120 is provided at the insertion hole 112 of the eyeglass body 110, and a liquid crystal display (LCD) or polymer dispersed liquid crystal (PDLC) film is preferably used as the covering portion 120.

4 and 5, a vision unit 130 is provided on one side of the shield 120, and the transmittance of the vision unit 130 provided on the side of the measurer's non-main eye is When it gradually decreases, it plays a role in capturing the non-focusing eye of the measurer. The vision unit 130 is provided on the glasses body 110 so as to obliquely observe the pupil at a position where the visual axis is not covered, and the vision unit 130 has a first vision 131 and a second vision 132 includes The first vision 131 is provided in the cover part 120 on one side provided in the glasses body 110 and the second vision 132 is provided in the cover part 120 on the other side, and the glasses body ( 110), the main eye and the non-focus eye can be changed according to the measurer wearing the first vision 131 or the second vision 132 when the transmittance of the non-focus eye is gradually reduced, and the first vision 131 or the second vision 132 captures and captures the non-focus eye of the measurer. One image is transmitted to the controller 140 .

4 to 6, the control unit 140 adjusts the voltage applied to the shielding unit 120 and analyzes the image transmitted from the vision unit 130 to measure and evaluate the severity of intermittent exotropia play a role

The control unit 140 sets the transmittance of the cover part 120 provided on the non-main eye side of the measurer to be 100%, and then as the intensity of the voltage applied to the cover part 120 gradually decreases, the non-main eye The transmittance of the shielding portion 120 that covers the is gradually reduced. It is preferable that the control unit 140 applies a voltage such that the transmittance of the shielding unit 120 provided on the non-main eye side of the measurer is reduced by 2% at intervals of 1 second, but is not limited thereto. Voltage may be applied so that the transmittance decreases by %, and the transmittance decrease rate may be adjusted to increase or decrease the accuracy of the evaluation.

The image captured by the vision unit 130 is transmitted in real time to the controller 140, and the controller 140 inspects whether the pupil P of the transmitted image deviates from the preset range A It is confirmed whether exotropia is caused, and the severity of intermittent exotropia is measured and evaluated by measuring the permeability of the shield at the time point when exotropia is induced in the non-visual eye.

Therefore, the severity of fusion of both eyes and intermittent exotropia can be objectively measured and evaluated, and the severity of fusion of both eyes and intermittent exotropia can be easily and accurately measured and evaluated in a short time. and time can be determined.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand 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.

100: Intermittent exotropia severity evaluation device 110: Glasses body
120: shading part 130: non-visible part
140: control unit

Claims (9)

In the method for evaluating the severity of intermittent exotropia for evaluating the severity of intermittent exotropia,
A spectacle body wearing step in which a measurer wears a spectacle body having a shielding portion capable of adjusting transmittance;
a step of gradually reducing the transmittance of the shield provided on the side of the non-main eye of the measurer wearing the glasses body while adjusting the voltage applied to the shield by the control unit;
A non-focusing eye observation step of observing whether exotropia is induced in the non-focusing eye of the measurer when the transmittance of the non-focusing eye side of the measurer is gradually reduced; and
Including a transmittance measuring step of measuring the transmittance of the shield by the control unit when exotropia is induced in the observer's eyes,
Evaluate the severity of intermittent exotropia by measuring the permeability of the occluder at the time when exotropia is induced in the non-visual eye,
In the non-focusing observation step,
A non-focusing eye photographing step of photographing a user's non-focusing eye using a vision unit;
Intermittent exotropia severity evaluation method comprising an exotropia examination step of checking whether the pupil has deviated from the set range in the image taken by the vision unit to determine whether exotropia is caused.
The method of claim 1,
In the step of reducing the permeability of the shielding portion,
A shielding unit setting step of setting the transmittance of the shielding unit to 100%;
A method for assessing the severity of intermittent exotropia including a gradual reduction of the shield by 2% at 1-second intervals.
The method of claim 2,
Intermittent exotropia severity evaluation method, characterized in that the cover portion is a LCD (Liquid Crystal Display) or PDLC (polymer dispersed liquid crystal) film whose transmittance is adjusted by the applied voltage.
delete The method of claim 1,
The image captured by the non-vision unit is transmitted in real time to the control unit, and the control unit checks whether the pupil of the transmitted image is out of a predetermined setting range to determine whether exotropia is caused.
The method of claim 1,
Intermittent exotropia severity evaluation method, characterized in that in the transmittance measuring step, the transmittance of the shielding portion is measured by the control unit.
Glasses body worn by a measurer to measure the severity of intermittent exotropia;
a cover provided on the spectacle body and having transmittance controlled by an applied voltage;
a vision unit provided to be spaced apart from the spectacle body and photographing the measurer's non-main eye when the transmittance of the shielding portion on the non-main eye side of the measurer gradually decreases; and
The voltage applied to the occluder is adjusted, the image captured by the vision unit is transmitted in real time, and whether the pupil included in the transmitted image is out of a preset setting range is checked to determine whether exotropia is caused, Intermittent exotropia severity evaluation device comprising a control unit for measuring the severity of intermittent exotropia by measuring the transmittance of the shielding portion at the time point when exotropia is induced in the non-visual eye.
The method of claim 7,
Intermittent exotropia severity evaluation device, characterized in that the screen portion is a LCD (Liquid Crystal Display) or PDLC (polymer dispersed liquid crystal) film whose transmittance is adjusted by the applied voltage.
The method of claim 7,
The control unit sets the transmittance of the shield to 100% and then gradually reduces it by 2% at intervals of 1 second. Intermittent exotropia severity evaluation device.

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