KR100787039B1 - Ocularangle deviation measuring indication and Heterophoria measture method using that - Google Patents

Abstract

The present invention relates to an eye deflection measurement timetable and a method for measuring a position using the same, and more particularly, to measure eye and horizontal deviation, and to accurately measure the degree of adaptation of a latent vertical and vertical prism. It relates to a table and a method for measuring the same using the same.

Eye deviation measurement indicator and measuring method of the present invention for achieving the above object, the horizontal measurement line is displayed horizontally in order to measure the vertical inclination and deviation of the eye, the vertical perpendicular to the lower side from the center of the horizontal measurement line The measurement line is displayed, and the vertical measurement line is composed of a vertical deviation measurement unit consisting of a vertical measurement scale that checks the measured vertical deviation by displaying a scale and a value at intervals of 1 prism diopter (Δ). .

Horizontal, vertical, prism diopter, vertical prism adaptation, vertical latency

Description

Ocularangle deviation measuring indication and Heterophoria measture method using that}

1A is a front view of a preferred embodiment according to the present invention,

1b is a rear view of a preferred embodiment according to the present invention;

Figure 2 is an embodiment showing a measurement example of a normal person by applying the separation prism of 6 prism diopter to the eye of an embodiment according to the present invention,

Figure 3 is an embodiment showing a measurement example vertically biased by applying the separation prism of the six prism diopter to the eye of an embodiment according to the present invention.

Detailed description of the main parts of the drawings

10: Eye deviation measurement table

20: horizontal measuring unit 21a, 21b: guidelines

22a, 22b: Horizontal Slope Scale 23: Horizontal Deviation Indicator

30: vertical deviation measurement unit 31a: horizontal measurement line

32: vertical measurement line 33: vertical measurement scale

61: character time 62: cross time

63: near vision table 64: numerical group table

The present invention relates to an eye deflection measurement timetable and a method for measuring a position using the same, and more particularly, to measure eye and horizontal deviation, and to accurately measure the degree of adaptation of a latent vertical and vertical prism. It relates to a table and a method for measuring the same using the same.

In general, when the eyes are open, the eyes of both eyes are directed to the subject at the same time as the normal person, but the eyes are separated or the prism or other methods are used to separate the left and right eyes. When you look at it, it is a state of safety in which the eye returns to a comfortable direction such as left / right, up / down or inclined direction.

The son-in-law, unlike the strabismus, is said to be latent sacral because of latent bias.

This son-in-law does not appear in appearance, but if the angle is too severe, eye fatigue easily and sometimes the double view of the object appears.

As a method for measuring the above-mentioned inclination, various methods such as a method by Madox rod, a Von Graefe, and a polarization schedule have been used.

However, these methods have been a problem in using the measurement results in clinical practice because they are measured in a different environment from real life as well as the need to add a prism amount or to measure in a dark room to match left and right eyes.

In addition, by using Howell's sonar card developed by Professor Edwin Howell of the University of New South Wales, Australia, eyeball horizontal measurements are conveniently measured.

In the measuring method using the Howell sock card, the Howell sock card is placed in front of the subject's eyes, and then placed in front of the right eye with the basal direction of the separation prism downward.

At this time, check that the horizontal position measurement part is divided up and down, and then check the horizontal deviation indicator of the horizontal level measurement part of the separated upper part to indicate which value of the horizontal level reading of the separated lower part is measured. It becomes the horizontal level.

In the above cases, the eye deviation of the patient with horizontal oblique angle can be measured, but in the case of the patient with vertical deviation, there is no way to confirm the separation of the target even with the separating prism. have.

In addition, the measurement itself was not possible for patients with complex upper / lower left and right / right eyeballs, and if the horizontal sonor was measured only in the complex son-in-law, correction by eyeglasses or time-training was performed. This eliminates the possibility of adversely affecting the results because the vertical son-in-law is excluded.

The present invention has been devised to reduce the problems described above, and to measure the vertical position and deviation of the eye to improve the reliability in the orthodontic treatment by allowing the examinee to directly check the amount of deviation in addition to the horizontal position measurement. The purpose is to make it possible.

In addition, another object of the present invention is to allow a variety of eye function measurement by the design of the vertically shaped, horizontally shaped, letter, cross-stitch, near-field vision table and the number group indicator to the portable card-type targets The purpose is to make it.

In addition, another object of the present invention is to present a basic optical refractive index of the separation prism necessary for the measurement of the inclination with the vertical deviation measurement unit, and at the same time presenting the measurement distance between the target and the eye, more convenient and convenient eyeball measurement is Its purpose is to make it possible.

In addition, another object of the present invention is to measure the amount of vertical and prism, the latent vertical, horizontal horizontal by measuring in accordance with the selective measurement method of the eye through the eye deviation measurement table.

In addition, another object of the present invention is to use a separate prism to make a variety of accurate measurements, such as vertical vertical, prism adaptation, latent vertical vertical, using the result of the spectacles prescribed by the spectacles or not Its purpose is to help you judge.

Eye deviation measurement indicator and measuring method of the present invention for achieving the above object, the horizontal measurement line is displayed horizontally in order to measure the vertical inclination and deviation of the eye, the vertical perpendicular to the lower side from the center of the horizontal measurement line The measurement line is displayed, and the vertical measurement line is composed of a vertical deviation measurement unit consisting of a vertical measurement scale that checks the measured vertical deviation by displaying a scale and a value at intervals of 1 prism diopter (Δ). .

The vertical position measurement unit and the horizontal position measurement unit for measuring the horizontal position of the eyeballs respectively formed on the front so that the display, and the character display unit to display the letter to determine the degree of correction of the eyeball, and self-adjustment Cross-pointing unit for the reaction or presbyopia test, and near-field numeric vision table for measuring myopia using numbers, and numerical group indicators for measuring visual acuity, control response, control, and relative control It is done.

Spaced vertical deviation measurement unit a certain distance on the horizontal line of the subject's eyes,

Inserting a separation prism, which is a reference to the subject, in the test frame so that the maximum declination is observed in the eye to be measured in either the right eye or the left eye;

When the measurement target eye is looking at the horizontal measurement line in the vertical deviation measurement unit projected through the maximum polarization of the separation prism, the horizontal measurement line and the vertical measurement line which are virtually separated are displayed on the vertical measurement scale;

Measuring a value deviating from the reference value by the declination angle of the separation prism of the virtual vertical measurement line displayed on the vertical measurement scale;

Calculating the vertical deviation value of the subject's eye by using the prism adaptive amount obtained by subtracting the change of the virtual measurement horizontal and vertical measurement lines represented by the declination value as the default value of the reference value applied to the separated prism as the reference. Wow,

Charging so that the minimum polarization of the separation prism as a reference to the test frame of the eye to be measured is observed;

The numerical value of the vertical subdeviation of the eye to be measured as the remaining change subtracted from the reference value by the declination of the imaginary horizontal measurement line and the vertical measurement line, the horizontal measurement line of which the horizontal measurement line is separated through the minimum polarization of the separation prism. Measuring the

Comprising a step of calculating a total measurement value of the vertical deviation and the vertical deviation in the measurement target eye based on the vertical upper deviation numerical value and the vertical lower deviation numerical value.

The reference prism uses 6 prism diopters (Δ), and the distance between the subject's eyes and the eye deviation measurement table should be 40 cm, and the standard deviation reference value is normal to the value of 6 prism diopters (Δ). The virtual horizontal measurement line and the vertical measurement line are characterized in that the measurement is displayed on the vertical measurement scale of 6.

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

In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

Figure 1a shows a front view of the eye deviation measurement table according to an embodiment of the present invention, Figure 1b shows a rear view of the eye deviation measurement table according to an embodiment of the present invention.

As shown in Figure 1a, the eye deviation measurement table of the present invention, the horizontal position measuring unit 20 is displayed on one side so as to measure the vertical or horizontal position and deviation state of the eye, the vertical position on the lower side The deviation measurement unit 30 is formed to be displayed on the front.

The horizontal measuring unit 20 is spaced apart at regular intervals up and down to display the guide lines 21a and 21b, and are divided into left and right sides at the centers of the guide lines 21a and 21b, respectively. An odd number is displayed on the right side of the numerical value so that the horizontal interdigital scales 22a and 22b are displayed, and the horizontal deviation indicator 23 is made to be erected in the lower direction in the center of the lower guide line 21b.

The horizontal measuring unit 20 is for measuring how far the eyeball is horizontally.

In addition, the numerical values of the horizontal quarter scales 22a and 22b are displayed at intervals of one prism diopter.

Since the horizontal measuring unit 20 described above is already known technology, it will be briefly described and omitted.

The vertical deviation measurement unit 30 is located at the bottom of the horizontal measurement unit 20, the horizontal measurement line 31 is displayed horizontally to measure the vertical inclination and deviation of the eye, the horizontal measurement line 31 The vertical measurement line 32 is displayed at the center of the vertical direction in the lower direction, and the vertical measurement line 32 is displayed at a value of 1 prism diopter interval to form a vertical measurement scale 33.

The definition of the 1 prism diopter (Δ) is expressed as 1 prism diopter (Δ) the amount of deflection by 1 cm per 1m, the unit display is Δ (prism diopter).

In addition, as shown in FIG. 1B, the character sheet 61 of a short sentence is displayed on the rear side of the eye deviation measurement table 10 so as to confirm the correction frequency at a short distance (40 cm), and the eye deviation is shown. In the center of the measurement table 10, a cross indicator 62 for measuring subjective control response or presbyopia degree test is displayed, and the visual acuity can be checked at a short distance (40 cm) on the left side of the cross indicator 62. A short-range numeric visual acuity table 63 is displayed, and numbers are displayed in a lozenge below the cross-tab 62, and a number of the numerical sizes (0.3, 0.5, 0.8) are variously displayed, so Numerical group indicator 64 is displayed to measure, controllability, control response, controllability, and relative control.

As described above, the card-shaped eye deviation measurement table 10 is formed to be easy to carry and to various measurements.

Referring to the measurement method using the eye deviation measurement table of the present invention described above are as follows.

The measuring method for calculating the vertical vertical deviation numerical value using the eye deviation measurement table 10, the eye deviation measurement table 10 in which the vertical deviation measurement unit 30 is displayed a certain distance on the horizontal line of the subject's eyes. In the step of spaced apart, the next step is to put a separation prism that is a reference to the subject to the test frame, so that the maximum declination can be observed in the eye to be measured in any one of the right eye or left eye, the next, the measurement target When the eye observes the horizontal measurement line 31 in the vertical deviation measurement unit 30 projected through the maximum declination of the separation prism, the horizontal measurement line 31 and the vertical measurement line 32 which are virtually separated are vertical. It is a step displayed on the measurement scale 33, and next, the virtual horizontal measurement line 31 and the vertical measurement line 32 displayed on the vertical measurement scale 33 deviate from the reference value by the declination of the separation prism. To measure the value Next, the measurement of the subject by the prism adaptation amount obtained by subtracting the change of the virtual horizontal measurement line 31 and the vertical measurement line 32 indicated by the default declination value of the reference value applied to the separation prism as the reference This is a step of measuring the numerical value of the vertical deviation of the target eye.

A method for measuring the numerical value of the vertical deviation of the eye using the eye deviation measurement timetable 10 is as follows.

In the step of wearing a separation prism that is the reference to the eye to be measured so that the minimum declination can be observed on the test frame, thereafter, the horizontal measurement line 31 is separated through the minimum declination of the separation prism It is a step of measuring the numerical value of the vertically lower deviation of the eye to be measured by using the change value subtracted from the reference value by the declination angle of the separating prism as the reference between the horizontal measurement line 31 and the vertical measurement line 32.

Comprising a step of calculating a comprehensive measurement value of the vertical deviation and the vertical deviation in the eye to be measured based on the numerical value of the vertical and vertical deviation values.

The measurement example in which the vertical deviation (prism adaptive amount) of the left and right eyes is measured using the measurement method using the above-described eye deviation measurement table 10 will be described as follows.

As shown in FIG. 2, when the object in front of the object is observed through a conventional separation prism, the actual light source is “a” below the eye by the distance “A” of FIG. As the distance is imaged, the subject looks as if it is up.

As shown in FIG. 3, the prism of the six prism diopters is disposed in the direction of the least polarization (BD), and then the eye deviation measurement table 10 is spaced 40 cm apart from the eye of the examinee. The horizontal measurement line 31 of the table 10 may be in line with the eyeball.

In this case, when the test condition is set to normal, the virtual horizontal measuring line 31 and the vertical measuring line 32 are imaged in the lower part of the eye, and the horizontal measuring line 31 is observed as much as 6 prism diopter deflection angle of the prism. The vertical deviation measurement unit 30 appears to be above.

The same as the six prism diopter of the separation prism to which the vertical measurement scale 33 of the virtual vertical deviation measurement unit 30 located above is based on the horizontal measurement line 31 of the actual vertical deviation measurement unit 30. The vertical measurement scale 33 on which the 6-diopter scale is displayed coincides with the horizontal measurement line 31 of the actual vertical deviation measurement unit 30.

This may turn out to be normal if the value of the prism diopter of the separating prism is equal to the virtual vertical measurement scale 33 moving by that value.

In addition, in the case of measurement of the eyeball with a four-sided, as shown in Figure 4, the virtual vertical measurement scale 33 is moved by the vertical measurement scale 33 represented by 6 diopters by the value of the six prism diopter of the applied separation prism. It should be noted, however, that the 4-diopter vertical measurement scale 33 does not match the 6-diopter vertical measurement scale 33 and is aligned with the actual horizontal measurement line 31, so that the virtual 4-diopter vertical measurement is performed at 6 prism diopters of the applied prism amount. 2 diopters, which is a value subtracted from the scale 33, becomes the measured deviation value of the examinee.

 In other words, the amount of distance from the center of the retina to the focus is reduced, the image deviation is reduced.

In addition, it is preferable that the examiner grasps and measures the eye deflection measurement timetable 10, and more ideally, it is preferable to attach the eye deflection measurement timetable 10 to a wall surface or to be fixed.

In addition, the separation prism has been described so that the wider side of the angle is directed toward the lower side at the maximum declination, and the narrower side of the other side is directed downward to the lower side at the minimum declination angle.

In addition, it is possible to measure not only the prism but also the vertical displacement by the method described above.

The method of calculating the vertical amount of the eye is to measure the left eye and the right eye separately, and the measured value obtained by subtracting the measured value of the left eye from the measured value of the right eye based on the measured value is the vertical amount.

Therefore, the measured amount of the left and right eyes obtained through the bias measurement table 10 can measure the vertical amount, prism adaptation, and vertical deviation by various measurement formulas.

As described above, the eye deviation measurement table and the measuring method of the preferred embodiment according to the present invention have the following effects.

The present invention can measure the vertical position and the deviation of the eye using the eye deviation measurement table, it is possible to check the amount of deviation directly by the examinee in addition to the horizontal position measurement has the advantage of improving the reliability in the orthodontic treatment.

In addition, the present invention has the advantage that a variety of eye function measurement is possible by the design of the vertical deviation, horizontal death, character, cross, the near vision table and the number group in the card-shaped eye deviation measurement table of the portable type There is this.

In addition, the present invention by presenting the basic optical refraction of the separation prism required for the measurement of the position with the vertical position measurement measurement unit by presenting the measurement distance of the eye deviation measurement table and the eyeball more convenient and simple eye position measurement There are possible advantages.

In addition, the present invention has the advantage of measuring a variety of vertical and amount of prism, the latent vertical, horizontal horizontal by measuring in accordance with the selective eye measurement method through the eye deviation measurement table.

In addition, the present invention can use a separate prism to make various accurate measurements, such as vertical, prism adaptation, latent vertical, and can determine whether the prescription of the spectacles and the adaptation of the glasses by using the results. There is an advantage.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the spirit of the present invention. It will be apparent to those of ordinary knowledge.

Claims (4)

In the eye deviation measurement table using the Howell swiss card, a horizontal measurement line is displayed horizontally to measure vertical inclination and deviation of the eye, and a vertical measurement line is displayed to be upright from the center of the horizontal measurement line. The vertical measurement line is an eye deviation measurement table, characterized in that it consists of a vertical deviation measurement unit consisting of a vertical measurement scale that checks the measured amount of vertical deviation by displaying a scale and a value at intervals of 1 prism diopter (Δ). The method of claim 1, The vertical position measurement unit and the horizontal position measurement unit for measuring the horizontal position of the eyeballs respectively formed on the front so that the display, and the character display unit to display the letter to determine the degree of correction of the eyeball, and self-adjustment Cross-pointing unit for the reaction or presbyopia test, and near-field numeric vision table for measuring myopia using numbers, and numerical group indicators for measuring visual acuity, control response, control, and relative control Eye deviation measurement table. Spaced vertical deviation measurement unit a certain distance on the horizontal line of the subject's eyes, Inserting a separation prism, which is a reference to the subject, in the test frame so that the maximum declination is observed in the eye to be measured in either the right eye or the left eye; When the measurement target eye is looking at the horizontal measurement line in the vertical deviation measurement unit projected through the maximum polarization of the separation prism, the horizontal measurement line and the vertical measurement line which are virtually separated are displayed on the vertical measurement scale; Measuring a value deviating from the reference value by the declination angle of the separation prism of the virtual vertical measurement line displayed on the vertical measurement scale; Calculating the vertical deviation value of the subject's eye by using the prism adaptive amount obtained by subtracting the change of the virtual measurement horizontal and vertical measurement lines represented by the declination value as the default value of the reference value applied to the separated prism as the reference. Wow, Charging so that the minimum polarization of the separation prism as a reference to the test frame of the eye to be measured is observed; The numerical value of the vertical subdeviation of the eye to be measured as the remaining change subtracted from the reference value by the declination of the imaginary horizontal measurement line and the vertical measurement line, the horizontal measurement line of which the horizontal measurement line is separated through the minimum polarization of the separation prism. Measuring the Comprising a step of calculating the total measurement value of the vertical and vertical deviation in the object to be measured based on the numerical value of the vertical and vertical vertical deviation, and eyeball measurement measurement table comprising the same. The method of claim 3, wherein The reference prism uses 6 prism diopters (Δ), and the distance between the subject's eyes and the eye deviation measurement table should be 40 cm, and the standard deviation reference value is normal to the value of 6 prism diopters (Δ). An eye deviation measurement table and a method for measuring obstruction using the same, wherein the virtual horizontal measurement line and the vertical measurement line are displayed on the vertical measurement scale of 6.

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