Eyelid Tension Measuring Device, Eyelid Tension Data Processing System, and Eyelid Tension Data Processing Method

Abstract

An eyelid tension measuring device according to an embodiment of the present disclosure may include: an eyelid retractor configured to widen the palpebral fissure between the upper eyelid and the lower eyelid; an eyelid tension measuring sensor attached to one side of the eyelid retractor and configured to measure the eyelid tension of an object and output eyelid tension data; a position sensor configured to measure the distance between the upper eyelid and the lower eyelid; and a communication module configured to transmit the eyelid tension data to an analysis device.

Description

Technical Field

[0001] The present disclosure relates to an eyelid tension measuring device, an eyelid tension data processing system, and an eyelid tension data processing method. Background Art

[0002] The eyeball has an internal pressure that resists the external atmosphere. This internal pressure is called intraocular pressure. The shape of the eyeball can be maintained by the intraocular pressure. For example, the eyeball can have a spherical shape. The cornea surrounds the front part of the eyeball. When the cornea has a uniform thickness, the shape of the cornea can be maintained. Additionally, even if the thickness of the cornea changes slightly due to refractive surgery, as long as the cornea can sufficiently resist the intraocular pressure, there is no problem in maintaining the shape of the cornea. However, when the intraocular pressure rises excessively or the resistance of the eyeball (especially the cornea) weakens due to various factors, the eyeball may deform. For example, keratoconus is a symptom in which a part of the cornea protrudes in a conical shape, accompanied by various inconveniences such as decreased vision and eye pain.

[0003] In fact, the force applied to the eyeball through the upper eyelid rather than the lower eyelid is considered to be a more important factor. However, the degree of influence may vary depending on the characteristics of the individual eyelids. Therefore, since eyelid tension has a direct impact on the eyeball, eyelid tension can be regarded as an important factor in corneal-related refractive surgery or the treatment of corneal-related diseases. Eyelid tension may also increase the pressure applied to the eyeball, resulting in an increase in intraocular pressure. However, devices capable of objectively measuring eyelid tension have not been fully developed. Therefore, it is necessary to study how to use the measured value of eyelid tension. Summary of the Invention

[0004] Keratoconus is the most serious complication that occurs during LASIK / LASEK surgery. In order to prevent keratoconus, the thickness of the cornea during surgery should be ensured to be relatively thick. In addition, when less corneal tissue is removed, this is also to reduce the risk of keratoconus. Therefore, in order to predict the possibility of postoperative keratoconus in advance, it is necessary to measure the eyelid tension of all patients considering LASIK / LASEK surgery.

[0005] The developed eyelid tension measuring devices are quite large and complex. When there is a slight error in the initial setting, the possibility of an error in the measured value is very high, and doctors need to spend a lot of time and effort in the treatment process to measure the eyelid tension.

[0006] Various embodiments of the present disclosure provide an eyelid tension measuring device that can measure the eyelid tension of a user by installing a sensor in an eyelid retractor. Various embodiments of the present disclosure provide an eyelid tension data processing system including the above eyelid tension measuring device. Various embodiments of the present disclosure provide a method for processing eyelid tension data measured by the eyelid tension measuring device.

[0007] An eyelid tension measuring device according to an embodiment of the present disclosure includes: an eyelid retractor configured to widen the interval between the upper eyelid and the lower eyelid; an eyelid tension measuring sensor attached to one side of the eyelid retractor and configured to measure the eyelid tension of a person to be measured and output eyelid tension data; a position sensor configured to measure the interval between the upper eyelid and the lower eyelid; and a communication module configured to transmit the eyelid tension data to an analysis device.

[0008] In one embodiment, the eyelid retractor may include: two arms having a shape symmetric to each other with respect to a central axis; two linkages respectively rotatably connected to the two arms and symmetrically arranged with respect to the central axis; a connecting member configured to rotatably connect the two linkages to each other; a frame rotatably connected to one end of each of the two arms; a screw threadedly coupled to the frame, one end of the screw being coupled to the connecting member; a first base and a second base respectively coupled to the other end of each of the two arms and configured to respectively support the upper eyelid and the lower eyelid.

[0009] In one embodiment, the eyelid tension measuring sensor may be mounted in at least one of the first base and the second base and may be configured to measure the pressure applied to the first base and the second base.

[0010] In one embodiment, the eyelid tension measuring sensor may be mounted on at least one of the two arms and may be configured to measure the elastic strain of the arm.

[0011] In one embodiment, the eyelid tension measuring sensor may be mounted at the screw and may be configured to measure the torque applied to the screw.

[0012] In one embodiment, the position sensor may be mounted on at least one of the first base and the second base and may measure the interval between the first base and the second base.

[0013] In one embodiment, the eyelid retractor may include: a first arm connected to the first base; a second arm connected to the second base; and a joint connecting the first arm and the second arm to each other.

[0014] In one embodiment, the eyelid tension measuring sensor may be mounted on at least one of the first arm and the second arm and may be configured to measure the displacement of the first arm or the second arm.

[0015] In one embodiment, an eyelid retractor may include: a body; a first arm and a second arm movably coupled to the body and having a predetermined interval therebetween; a first leg and a second leg respectively coupled to the first arm and the second arm; and a first base and a second base respectively coupled to the first leg and the second leg.

[0016] In one embodiment, an eyelid tension measurement sensor may be installed in each of the first base and the second base and may be configured to measure the pressure applied to the first base and the second base.

[0017] In one embodiment, the eyelid retractor may further include a distance indicator configured to indicate the distance between the first arm and the second arm.

[0018] In one embodiment, the body may include a display configured to display eyelid tension data.

[0019] In one embodiment, the device may further include a mounting portion on which the eyelid retractor is mounted to move vertically or laterally.

[0020] An eyelid tension data processing system according to an embodiment of the present disclosure includes: an eyelid tension measurement device configured to measure the eyelid tension of a person to be measured and output measurement data; and an analysis device configured to compare the measurement data with pre-stored reference data to determine the eye state of the person to be measured.

[0021] An eyelid tension data processing method according to an embodiment of the present disclosure includes: inputting preset reference data into an analysis device; measuring the eyelid tension of a person to be measured using an eyelid tension measurement device and outputting the measured eyelid tension as measurement data; comparing the measurement data with the reference data through the analysis device; and determining the eyelid state of the person to be measured according to the difference between the measurement data and the reference data.

[0022] In one embodiment, the reference data may be calculated based on the measurement data of a plurality of persons to be measured measured at preset intervals.

[0023] According to an embodiment of the present disclosure, in order to overcome the problems of the above conventional methods, the eyelid tension may be evaluated by measuring the magnitude of the force required during the process of opening the eyelid, and the eyelid tension includes the blinking force of the orbicularis oculi muscle constituting the eyelid and the muscle tension in a substantially static state.

[0024] According to an embodiment of the present disclosure, the process of installing the eyelid tension measurement device on the eye is very simple. Regardless of how the patient's head or body moves, the problem that the eyelid tension measured by the traditional method only reflects a part of the eyelid can be solved. The reproducibility or reliability of the eyelid tension measurement value can be significantly improved.

[0025] According to an embodiment of the present disclosure, since the eyelid tension can be objectively evaluated, the effectiveness of the diagnosis and treatment of keratoconus, corneal ectasia, regular and irregular astigmatism, which are greatly affected by eyelid tension, can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view showing an eyelid tension measuring device according to an embodiment of the present disclosure.

[0027] Figure 2 is a perspective view showing an eyelid tension measuring device according to an embodiment of the present disclosure.

[0028] Figure 3 is a perspective view showing an eyelid tension measuring device according to an embodiment of the present disclosure.

[0029] Figure 4 is a perspective view showing an eyelid tension measuring device according to an embodiment of the present disclosure.

[0030] Figure 5 is a perspective view showing an eyelid tension measuring device according to an embodiment of the present disclosure.

[0031] Figure 6 shows Figure 5 a perspective view of the measuring unit of the eyelid tension measuring device shown.

[0032] Figure 7 is a schematic structural diagram showing an eyelid tension measuring system according to an embodiment of the present disclosure.

[0033] Figure 8 is a flowchart for describing an eyelid tension data processing method according to an embodiment of the present disclosure.

[0034] Figure 9 is a table for describing an eyelid tension data processing method according to an embodiment of the present disclosure.

[0035] Figure 10 is a chart showing eyelid tension data according to an embodiment of the present disclosure.

[0036] Figure 11 is a chart showing eyelid tension data according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] Embodiments of the present disclosure are used to explain the technical idea of the present disclosure. The scope of rights according to the present disclosure is not limited to the embodiments presented below or the detailed descriptions of these embodiments.

[0038] Unless otherwise defined, all technical and scientific terms used in this disclosure have the meanings commonly understood by those of ordinary skill in the art to which this disclosure pertains. All terms used in this disclosure are for the purpose of more clearly describing this disclosure and are not intended to limit the scope of the rights under this disclosure.

[0039] Expressions such as "including", "comprising", "having", etc. used in this disclosure should be understood as open - ended terms that have the possibility of including other embodiments, unless otherwise mentioned in the phrase or sentence containing such expressions.

[0040] Unless otherwise stated, the singular expressions described in this disclosure may include plural expressions, and this will also apply to the singular expressions in the claims.

[0041] Expressions such as "first", "second", etc. shown in this disclosure are used to distinguish multiple elements from each other and are not intended to limit the order or importance of the corresponding elements.

[0042] The expression "based on" used herein is used to describe one or more factors that affect an action of a decision, determination, or operation described in a phrase or sentence including the relevant expression, and this expression does not exclude additional factors that affect the action of the decision, determination, or operation.

[0043] When a certain component is described herein as being "coupled to" or "connected to" another component, this should be understood to mean that the certain component can be directly coupled or connected to the other component, or the certain component can be coupled or connected to the other component through a new intermediate component.

[0044] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the drawings, the same or related components are denoted by the same reference numerals. In the following description of the embodiments, repeated descriptions of the same or related components will be omitted. However, even if the description of a component is omitted, it is not intended to exclude such a component from the embodiments.

[0045] Figure 1 is a perspective view showing an eyelid tension measuring device 1 according to an embodiment of the present disclosure.

[0046] The eyelid tension measuring device 1 may include an eyelid retractor 10 and a pressure sensor 100 attached to the eyelid retractor 10. The pressure sensor 100 may have a pad - like shape. The pressure sensor 100 may be in direct contact with the lower end of the upper eyelid to measure the eyelid tension exerted by the upper eyelid on the eyelid retractor 10. The eyelid retractor 10 may include arms 20, linkages 30, connection members 45, a frame 60, and screws 40.

[0047] The two arms 20 can be configured to have shapes that are symmetric with respect to each other about the central axis M. One end of the arm 20 can be rotatably connected to the end of the frame 60. The base 50 for supporting the eyelid of the arm can be fixed to the other end of the arm 20. The arm 20 can include a connecting arm 21 connected to the link 30 and a load arm 22 having a strength less than that of the connecting arm 21 and fixed to the base 50.

[0048] One end of the link 30 is rotatably connected to the connecting arm 21, while the other end of the link 30 is rotatably connected to the connecting member 45. The connecting member 45 can be connected to the screw 40 such that the front end of the screw 40 is fixed. Accordingly, the two arms 20 can be connected to the connecting member 45 through the two links 30 to form a linkage structure.

[0049] The external thread of the screw 40 can engage with the internal thread formed in the opening 61 of the frame 60. When the user rotates the head 41 of the screw 40, the screw 40 can move relative to the frame 60. Additionally, when the screw 40 moves, the connecting member 45 can move, and the connecting member 45 can move the link 30 through the movement of the screw 40. As a result, the arm 20 can move. That is, the interval between the two arms 20 can be adjusted by the screw 40.

[0050] The base 50 can include a first base 51 and a second base 52. The pressure sensor 100 can be disposed in the first base 51. The interval L between the first base 51 and the second base 52 can be adjusted by the screw 40. The pressure sensor 100 can be in contact with the lower end of the upper eyelid of the person to be measured. The pressure sensor 100 can include, for example, a piezoelectric element.

[0051] The wireless communication module 85 can be attached to the arm 20 to transmit the measured value measured by the pressure sensor 100 to a diagnostic device (not shown). The wireless communication module 85 can be connected to the pressure sensor 100 to transmit the output value measured by the pressure sensor 100 to an external analysis device (not shown). Accordingly, even if the pressure sensor 100 and the analysis device (not shown) are not directly connected by wires, the eyelid tension can be measured.

[0052] When the pressure sensor 100 is strongly pressed by the upper eyelid, a high output value (e.g., voltage) can be output. On the other hand, when the pressure sensor 100 is relatively weakly pressed by the upper eyelid, the pressure sensor 100 can output a low output value (e.g., voltage).

[0053] In one embodiment, the eyelid tension measuring device 1 may automatically measure the eyelid tension of a person to be measured. To this end, the eyelid tension measuring device 1 may include a position sensor 70 and an actuator 80. The position sensor 70 may be attached to the lower side of the first base 51 to measure the interval L between the first base 51 and the first base 52. In addition, the actuator 80 may rotate the screw 40. The actuator 80 may be provided as a motor, for example.

[0054] In a state where the person to be measured wears the eyelid tension measuring device 1, the actuator 80 may rotate the screw 40 forward or backward. In such a process, the position sensor 70 measures the interval L, and the pressure sensor 100 outputs an output value corresponding to each interval L. For measurement accuracy, the actuator 80 may rotate the screw 40 forward or backward several times, and may calculate the output values according to each case as an average value.

[0055] In one embodiment, the pressure sensor 100 may operate the actuator 80 to adjust the interval L to 3 mm, 6 mm, 9 mm, 12 mm, 15 mm, 18 mm, 21 mm, etc., and measure the eyelid tension as an output value corresponding to each interval L.

[0056] In one embodiment, the pressure sensor 100 may operate the actuator 80 to continuously adjust the interval L from 0 mm to 20 mm and measure the eyelid tension as an output value in the form of a curve corresponding to the interval L.

[0057] Figure 2 FIG. is a perspective view of an eyelid tension measuring device 2 according to an embodiment of the present disclosure. Descriptions of components that are the same as those described in the above embodiments will be omitted.

[0058] The eyelid tension measuring device 2 may include an eyelid retractor 10 and a strain sensor 200. The strain sensor 200 may be provided as a strain gauge, for example. The strain sensor 200 may be configured to measure the elastic strain of the load arm 22 connected to the first base 51.

[0059] In two cases with the same interval L, when the eyelid tension of the person to be measured is large, the load arm 22 may be deformed more, and the strain sensor 200 may output a larger output value (e.g., voltage). Conversely, when the eyelid tension of the person to be measured is small, the deformation of the load arm 22 is small, and the strain sensor 200 may output a smaller output value (e.g., voltage).

[0060] In one embodiment, the eyelid tension measuring device 2 can automatically measure the eyelid tension of a person to be measured. To this end, the eyelid tension measuring device 2 can include a position sensor 70 and an actuator 80. The position sensor 70 can be attached to the lower side of the first base 51 to measure the interval L between the first base 51 and the first base 52.

[0061] In one embodiment, the strain sensor 200 can operate the actuator 80 to adjust the interval L to 3 mm, 6 mm, 9 mm, 12 mm, 15 mm, 18 mm, 21 mm, etc., and measure the eyelid tension as an output value corresponding to each interval L.

[0062] In one embodiment, the strain sensor 200 can operate the actuator 80 to continuously adjust the interval L from 0 mm to 20 mm, and measure the eyelid tension as an output value in the form of a curve corresponding to the interval L.

[0063] Figure 3 FIG. 10 is a perspective view showing an eyelid tension measuring device 3 according to an embodiment of the present disclosure. Descriptions of components that are repeated with those described in the above embodiments will be omitted.

[0064] The eyelid tension measuring device 3 can include an eyelid retractor 10 and a torque sensor 300. The torque sensor 300 can measure the torque transmitted when the rotating shaft actually moves. The torque sensor 300 can be, for example, a magnetostrictive torque sensor, a strain gauge torque sensor, a phase difference detection type torque sensor, etc. The torque sensor 300 can be configured to measure the torque applied to the screw 40 when the actuator 80 rotates the screw 40.

[0065] In two cases where the interval L is the same, when the eyelid tension of the person to be measured is large, the actuator 80 applies a large torque to the screw 40, causing the screw 40 to rotate. As a result, the torque sensor 300 can output a large output value (e.g., voltage). On the contrary, when the eyelid tension of the person to be measured is small, the actuator 80 applies a small torque to the screw 40, causing the screw 40 to rotate. As a result, the torque sensor 300 can output a small output value (e.g., voltage).

[0066] In one embodiment, the eyelid tension measuring device 3 can automatically measure the eyelid tension of a person to be measured. To this end, the eyelid tension measuring device 3 can include a position sensor 70 and an actuator 80. The position sensor 70 can be attached to the lower side of the first base 51 to measure the interval L between the first base 51 and the first base 52.

[0067] In one embodiment, the torque sensor 300 may operate the actuator 80 to adjust the spacing L to 3 mm, 6 mm, 9 mm, 12 mm, 15 mm, 18 mm, 21 mm, etc., and measure the eyelid tension as an output value corresponding to each spacing L.

[0068] In one embodiment, the torque sensor 300 may operate the actuator 80 to continuously adjust the spacing L from 0 mm to 20 mm and measure the eyelid tension as an output value in the form of a curve corresponding to the spacing L.

[0069] Figure 4 is a perspective view showing an eyelid tension measuring device 4 according to an embodiment of the present disclosure. Descriptions of components that are repetitive with those described in the above embodiments will be omitted.

[0070] The eyelid tension measuring device 4 may include an eyelid retractor 90 and a displacement sensor 400. The eyelid retractor 90 may include a first arm 25, a second arm 27, a joint 26 for connecting the first arm 25 and the second arm 27, and a base 55 including a first base 56 and a second base 57. The first base 56 may be connected to the front end of the first arm 25. The second base 57 may be connected to the front end 27 of the second arm. The displacement sensor 400 may be attached to the side surface of the first arm 25.

[0071] In this embodiment, the displacement sensor 400 may measure an eyelid tension. Here, an eyelid tension refers to the eyelid tension corresponding to the initial spacing between the first base 56 and the second base 57 before the person to be measured wears the eyelid retractor 90. That is, in this embodiment, different from the above embodiment, the eyelid retractor 90 has a structure in which the user cannot pre-adjust the spacing between the first base 56 and the second base 57. In this case, it may be difficult for the user to measure the eyelid tension corresponding to each spacing while adjusting the spacing between the first base 56 and the second base 57.

[0072] Therefore, in the state where the person to be measured wears the eyelid tension measuring device 4, the eyelid tension can be measured only using the output value itself output by the displacement sensor 400. When the eyelid tension of the person to be measured is large, the displacement sensor 400 may output a large output value. When the eyelid tension of the person to be measured is small, the displacement sensor 400 may output a small output value.

[0073] Figure 5 is a perspective view showing an eyelid tension measuring device 5 according to an embodiment of the present disclosure. Figure 6 is a view showing Figure 5 a perspective view of the measuring unit 500 of the eyelid tension measuring device 5 shown. Descriptions of components that are repetitive with those described in the above embodiments will be omitted.

[0074] The eyelid tension measuring device 5 may include a measuring unit 500 and a mounting part 520 on which the measuring unit 500 is mounted. The measuring unit 500 may be mounted on the mounting part 520 and may move vertically or laterally. The face of the person to be measured may be placed on the mounting part 520. For example, the mounting part 520 may have a shape similar to a part of a slit lamp microscope for fixing the patient's face.

[0075] The mounting part 520 may include two struts 521 spaced apart from each other by a predetermined interval, an upper frame 524 mounted on the upper sides of the two struts 521, and a lower frame 522 mounted on the lower sides of the two struts 521. The lower frame 522 may include a chin rest 523 for supporting the chin of the person to be measured.

[0076] A first rail 525 configured to vertically move the measuring unit 500 may be mounted on each of the two struts 521. The first rail 525 may be formed in a portion between the upper frame 524 and the lower frame 522. Accordingly, a doctor may vertically move the measuring unit 500 along the first rail 525 according to the eye height of the person to be measured in the vertical direction.

[0077] The measuring unit 500 may be mounted on a second rail 526. That is, the measuring unit 500 may move laterally along the second rail 526. Accordingly, a doctor may laterally move the measuring unit 500 along the second rail 526 to match the eye position according to the face width of the person to be measured in the lateral direction. At the same time, the second rail 526 may be mounted on the first rail 525. Accordingly, the second rail 526 on which the measuring unit 500 is mounted may vertically move along the first rail 525.

[0078] As described above, the measuring unit 500 may move laterally along the second rail 526, thereby minimizing the situation where the measured value of the eyelid tension is affected when the person to be measured turns his or her head left and right.

[0079] The eyelid tension measuring device 5 may be used upright in a direction perpendicular to the ground like an ordinary slit lamp microscope. In the case of ordinary ophthalmic treatment, since the mounting part 520 is of a type that stands upright perpendicular to the ground (i.e., fixed type), when a doctor needs a corresponding treatment method, the mounting part 520 may be set to the fixed type to measure the eyelid tension.

[0080] As another example, the eyelid tension measuring device 5 may be used in a lying state parallel to the ground. In this case, the eyelid tension measuring device 5 is of a type that moves to match the posture of the person to be measured in a lying state (i.e., movable type), thereby further improving the convenience of the person to be measured.

[0081] The measurement unit 500 may include a main body 501 mounted on the second rail 526. The measurement unit 500 may be configured in the form of, for example, an eyelid retractor. The communication module 85 may be mounted on one side of the main body 501. The switch 503 may be mounted on the lower side of the main body 501 to turn on / off the measurement unit 500. The first arm 505 and the second arm 508 may be movably coupled to the other side of the main body 501 with a predetermined interval therebetween.

[0082] Each of the first arm 505 and the second arm 508 may move upward or downward in a state of being coupled to the main body 501. For example, a rail (not shown) may be mounted on the other side of the main body 501. Each of the first arm 505 and the second arm 508 may move upward or downward along the rail (not shown).

[0083] The first leg 506 may be connected to the front end of the first arm 505, and the second leg 509 may be connected to the front end of the second arm 508. In addition, the first base 507 may be connected to the first leg 506, and the second base 510 may be connected to the second leg 509. Meanwhile, the pressure sensor 100 may be installed in each of the first base 507 and the second base 510. The pressure sensor 100 installed in the first base 507 may be configured to measure the eyelid tension of the upper eyelid. In addition, the pressure sensor 100 installed in the second base 510 may be configured to measure the eyelid tension of the lower eyelid.

[0084] The distance indicator 504 may be installed between the main body 501 and the first arm 505 and the second arm 508. The distance indicator 504 may be marked with, for example, millimeter scales. Thus, a doctor may visually identify the interval between the first arm 505 and the second arm 508 during the use of the measurement unit 500.

[0085] The main body 501 may include a display 502 configured to display the eyelid tension measurement data. The distance indicator 504 may transmit data regarding the interval between the first arm 505 and the second arm 508 to the display 502. The display 502 may display the interval. In addition, the eyelid tension data of the upper eyelid measured by the pressure sensor 100 installed in the first base 507 may be transmitted to the display 502, and the display 502 may display the eyelid tension data. In addition, the eyelid tension data of the lower eyelid measured by the pressure sensor 100 installed in the second base 510 may be transmitted to the display 502, and the display 502 may display the eyelid tension data.

[0086] Figure 7 is a schematic structural diagram showing an eyelid tension measurement system 1000 according to an embodiment of the present disclosure.

[0087] The eyelid tension measurement system 1000 may include an eyelid tension measurement device 1100 and an analysis device 1200. The eyelid tension measurement device 1100 may transmit eyelid tension data to the analysis device 1200 in a wired or wireless manner. Figures 1 - 5 The eyelid tension measurement devices 1, 2, 3, 4, 5 shown in

[0088] may be used as the eyelid tension measurement device 1100. However, the eyelid tension measurement device 1100 is not limited to the above embodiment, and other types of configurations may be used.

[0089] Based on the eyelid tension data, the computer 1220 may classify the eye state of the person to be measured into multiple levels, such as three levels, for example, a weak level corresponding to weak eyelid tension, a normal level with an average eyelid tension, and a strong level corresponding to strong eyelid tension. For another example, the eye state of the person to be measured may be classified into a total of 10 levels, where the level with the relatively weakest eyelid tension is the first level and the level with the relatively strongest eyelid tension is the tenth level. As described above, there may be various presentation methods for the classification method of the eyelid state, and it is not limited to the above examples.

[0090] The display 1230 displays the pre-stored eyelid tension data, the measured eyelid tension data, and the eyelid state information. Based on the above data, a doctor may give advice to the person to be measured (i.e., the patient) or may diagnose the possibility of LASIK / LASEK surgery.

[0091] Figure 8 is a flowchart for describing an eyelid tension data processing method S1500 according to an embodiment of the present disclosure.

[0092] The eyelid tension data processing method S1500 may include inputting preset reference data into the analysis device (S1510), measuring the eyelid tension of the person to be measured using the eyelid tension measurement device, and outputting the measured eyelid tension as measurement data (S1520), the analysis device comparing the measurement data with the reference data (S1530), and the analysis device determining the eyelid state of the person to be measured based on the difference between the measurement data and the reference data (S1540).

[0093] Figure 9 is a table 2000 for describing an eyelid tension data processing method S1500 according to an embodiment of the present disclosure.

[0094] ReferenceFigure 9 , the table 2000 may include a classification criterion 2050, reference data 2100, measurement data 2200, and an eyelid state 2300. The classification criterion 2050 may be the reference Figures 1 to 3 described interval L. The unit of the interval may be millimeters.

[0095] The reference data 2100 may be an average value calculated based on the measurement data of multiple patients measured according to each interval. The reference data 2100 may include a reference output voltage (unit: V) and a reference eyelid tension (unit: N). For example, when the interval is 3 mm, the reference output voltage may be V R1 , and the reference eyelid tension may be T R1 . Each reference output voltage and its corresponding reference eyelid tension may be determined according to the preset characteristics of each sensor that outputs the reference output voltage.

[0096] The measurement data 2200 may be the measurement data of an individual patient actually measured according to each interval. The measurement data 2200 may include a measurement output voltage (unit: V) and a measurement eyelid tension (unit: N). For example, when the interval is 3 mm, the measurement output voltage may be V M1 , and the measurement eyelid tension may be T M1 .

[0097] The eyelid state 2300 may refer to data determined by comparing the reference eyelid tension of the reference data 2100 with the measurement eyelid tension of the measurement data 2200. For example, when the eyelid state is classified into three grades (weak grade, medium grade, and strong grade), the following eyelid state may be determined. When the measurement eyelid tension of the measurement data 2200 is within the range of +20% to -20% of the reference eyelid tension of the reference data 2100, it may be determined that the eyelid state 2300 is the medium grade. In addition, when the measurement eyelid tension of the measurement data 2200 is less than -20% of the reference eyelid tension of the reference data 2100, it may be determined that the eyelid state 2300 is the weak grade. In addition, when the measurement eyelid tension of the measurement data 2200 exceeds +20% of the reference eyelid tension of the reference data 2100, it may be determined that the eyelid state 2300 is the strong grade.

[0098] Hereinafter, exemplary eyelid tension data measured by an eyelid tension measuring device according to an embodiment of the present disclosure will be described. For convenience of description, reference will be made to Figures 1 to 3 the eyelid tension measuring devices 1, 2, and 3 shown. In addition, for convenience of description, three grades, namely, the weak grade, the medium grade, and the strong grade, are described, but the grades may be further subdivided according to the classification method of the grades.

[0099] Figure 10 is a graph showing eyelid tension data according to an embodiment of the present disclosure.

[0100] The X-axis may represent the interval L (unit: mm), and the Y-axis may represent the measured eyelid tension (unit: N). The measured value indicated by "A" indicates the measured value of the weak level corresponding to the weak eyelid tension of the person to be measured. The measured value indicated by "B" indicates the measured value of the medium level corresponding to the medium eyelid tension of the person to be measured. The measured value indicated by "C" indicates the measured value of the strong level corresponding to the strong eyelid tension of the person to be measured. For example, it can be made according to Figure 9 the table shown Figure 10 a graph. In addition, Figure 10 the graph shown Figure 7 can be displayed on the

[0101] Figure 11 display 1230 shown.

[0102] In Figure 11 the graph shown, the eyelid tension continuously measured by continuously increasing the interval L is shown in the form of a curve. The measured value indicated by "A" indicates the measured value of the weak level corresponding to the weak eyelid tension of the person to be measured. The measured value indicated by "B" indicates the measured value of the medium level corresponding to the medium eyelid tension of the person to be measured. The measured value indicated by "C" indicates the measured value of the strong level corresponding to the strong eyelid tension of the person to be measured.

[0103] Figure 11 the graph shown in Figure 7 can be displayed on the Figure 11 display 1230 shown. Referring to the graph shown in

[0104] Although the present disclosure has been described with reference to some embodiments and examples shown in the drawings, it should be noted that those skilled in the art to which the present invention pertains can understand that various substitutions, modifications, and variations can exist without departing from the technical idea and scope of the present invention. In addition, such substitutions, modifications, and variations should be construed as falling within the scope of the appended claims.

Claims

1. An eyelid tension measuring device, comprising: An eyelid retractor configured to widen the space between the upper eyelid and the lower eyelid; An eyelid tension measuring sensor attached to one side of the eyelid retractor and configured to measure the eyelid tension of a person to be measured and output eyelid tension data; A position sensor configured to measure the space between the upper eyelid and the lower eyelid; And A communication module configured to transmit the eyelid tension data to an analysis device, wherein the eyelid retractor comprises: Two arms having shapes symmetric with respect to a central axis; Two linkages respectively rotatably connected to the two arms and symmetrically arranged with respect to the central axis; A connecting member configured to rotatably connect the two linkages to each other; A frame rotatably connected to one end of each of the two arms; and A screw threadedly coupled to the frame, one end of the screw being coupled to the connecting member, and wherein the eyelid tension measuring sensor is mounted at the screw and configured to measure the torque applied to the screw.

2. The eyelid tension measuring device according to claim 1, wherein the eyelid retractor further comprises: A first base and a second base respectively coupled to the other end of each of the two arms and configured to respectively support the upper eyelid and the lower eyelid.

3. The eyelid tension measuring device according to claim 2, wherein, The position sensor is mounted on at least one of the first base and the second base and measures the space between the first base and the second base.

4. An eyelid tension data processing system, comprising: The eyelid tension measuring device according to any one of claims 1 to 3; And An analysis device configured to compare the measurement data with pre-stored reference data to determine the eye state of the person to be measured.

5. An eyelid tension data processing method, comprising: Inputting preset reference data into the analysis device; Measuring the eyelid tension of the person to be measured using the eyelid tension measuring device according to any one of claims 1 to 3 and outputting the measured eyelid tension as measurement data; Comparing the measurement data with the reference data by the analysis device; And Determining the eyelid state of the person to be measured based on the difference between the measurement data and the reference data.

6. The eyelid tension data processing method according to claim 5, wherein, The reference data is calculated based on the measurement data of multiple persons to be measured measured at preset intervals.

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