Eye slack evaluation method, eye slack evaluation device, and program

Abstract

To find a factor causing apparent sagging around eyes, and to evaluate the sagging around the eyes based on the found factor.SOLUTION: A method according to an aspect of the present invention includes acquiring information on a three dimensional shape of an eye area including an upper cheek portion of a subject when the subject is in a horizontal position and information on a three dimensional shape of the eye area including the upper cheek portion of the subject when the subject is in a vertical position, evaluating at least one of bulging of the eye area and drooping of the upper cheek portion based on the three dimensional shape of the eye area including the upper cheek portion of the subject when the subject is in the horizontal position and the three dimensional shape of the eye area including the upper cheek portion of the subject when the subject is in the vertical position, and evaluating sagging of the eye area based on at least one of the bulging of the eye area and the drooping of the upper cheek portion.SELECTED DRAWING: Figure 22

Description

[Technical Field]

[0001] The present invention relates to a method for determining the reason for a change in eye sagging, an apparatus for determining the reason for a change in eye sagging, and a program, and a method for evaluating eye sagging, an apparatus for evaluating eye sagging, and a program. [Background technology]

[0002] Conventionally, there are known methods for evaluating the effects of cosmetics, beauty treatments, etc. For example, Patent Document 1 discloses a method in which coordinates representing the degree of swelling around the eyes after a massage or aesthetic treatment are subtracted from coordinates representing the degree of swelling around the eyes before the treatment, and if the subtraction result is positive, the image is displayed brighter, and if the result is zero or negative, the image is displayed darker according to the degree of swelling.

[0003] There are also known methods for evaluating sagging around the eyes. For example, Non-Patent Document 1 reports a method for visually evaluating sagging around the eyes on a 7-point scale from 0 to 6. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3853720 [Non-patent literature]

[0005] [Non-Patent Document 1] T. Ezure et. al., Skin Res. Tech., 17, 510-515(2011) Summary of the Invention [Problem to be solved by the invention]

[0006] However, Patent Document 1 merely displays the subtraction results of coordinates that indicate the degree of swelling around the eyes, and is unable to determine the reason for changes in sagging around the eyes. Therefore, it has been desired to be able to determine the reason for changes in sagging around the eyes.

[0007] Furthermore, it has not been fully elucidated why the skin around the eyes appears saggy, and therefore there has been a demand for an evaluation based on what factors cause the appearance of saggy skin.

[0008] Therefore, an object of the present invention is to determine the reason for changes in sagging around the eyes.

[0009] Another object of the present invention is to find factors that cause the appearance of sagging around the eyes, and to evaluate the sagging around the eyes based on the found factors. [Means for solving the problem]

[0010] A method according to one aspect of the present invention includes acquiring information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before a change in sagging around the eyes occurs, and information on the three-dimensional shape of the subject's eyes when the subject is in an upright position after a change in sagging around the eyes occurs, and determining a reason for the change in sagging around the eyes based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before a change in sagging around the eyes occurs and the three-dimensional shape of the subject's eyes when the subject is in an upright position after a change in sagging around the eyes occurs.

[0011] A method according to one aspect of the present invention includes acquiring information on the three-dimensional shape of the subject's eyes, including the upper cheeks, when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes, including the upper cheeks, when the subject is in a vertical position; evaluating at least one of puffiness of the eyes and sagging of the upper cheeks based on the difference between the three-dimensional shape of the eyes, including the upper cheeks, when the subject is in a horizontal position, and the three-dimensional shape of the eyes, including the upper cheeks, when the subject is in a vertical position; and evaluating sagging of the eyes based on at least one of puffiness of the eyes and sagging of the upper cheeks. [Effects of the Invention]

[0012] According to the present invention, it is possible to determine the reason for changes in sagging around the eyes.

[0013] Furthermore, it is possible to find factors that cause the appearance of sagging around the eyes, and to evaluate sagging around the eyes based on the found factors. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 10 is a diagram for explaining a shape-up improvement type and a pump-up improvement type according to one embodiment of the present invention. [Figure 2] FIG. 1 is a diagram for explaining the shape-up improvement type and pump-up improvement type achieved by daily skin care using a basic cosmetic product according to one embodiment of the present invention. [Figure 3] FIG. 1 is a diagram for explaining the shape-up improvement type and the pump-up improvement type obtained by performing a scalp massage according to one embodiment of the present invention on a daily basis. [Figure 4] FIG. 1 is a diagram for explaining the shape-up improvement type and pump-up improvement type achieved by daily skin care using an RF / EMS facial beauty device according to one embodiment of the present invention. [Figure 5] 1 is a configuration diagram of a system for determining the reason for change in sagging eyes according to an embodiment of the present invention. [Figure 6]1 is a functional block diagram of an eye sagging change reason determination device according to an embodiment of the present invention; [Figure 7] FIG. 10 is a sequence diagram of a process for determining the reason for a change in sagging around the eyes according to an embodiment of the present invention. [Figure 8] 10 is a flowchart of a process for determining the reason for a change in sagging around the eyes according to an embodiment of the present invention. [Figure 9] This is an example in which a correlation is generated between the reasons for changes in sagging around the eyes determined for multiple subjects according to one embodiment of the present invention and the responses of those multiple subjects to a predetermined questionnaire, and the correlation is used to estimate the reasons for changes in sagging around the eyes from the responses to the predetermined questionnaire. [Figure 10] FIG. 10 is a diagram for explaining the puffiness around the eyes. [Figure 11] FIG. 10 is a diagram for explaining the puffiness around the eyes. [Figure 12] FIG. 10 is a diagram showing the relationship between eye sagging scores and age. [Figure 13] FIG. 10 is a diagram illustrating drooping of the upper cheek. [Figure 14] FIG. 10 is a diagram showing the relationship between sagging scores around the eyes and drooping of the upper cheeks. [Figure 15] 1 is a graph and a regression equation showing the relationship between age and the amount of ptosis of the upper cheek, and the relationship between the amount of ptosis of the upper cheek and the sagging score around the eyes. [Figure 16] FIG. 10 is a diagram showing the relationship between the eye sagging score and the puffiness around the eyes and drooping of the upper cheeks. [Figure 17] FIG. 10 is a diagram for explaining how the amount of sagging of the upper cheeks can be estimated from either or both of age and eye sagging score. [Figure 18] FIG. 1 is a diagram illustrating sagging skin around the eyes and dark circles around the eyes. [Figure 19] 1 is a configuration diagram of an eye sagging evaluation system according to an embodiment of the present invention. [Figure 20] 1 is a functional block diagram of an eye sagging evaluation device according to an embodiment of the present invention. [Figure 21]FIG. 10 is a sequence diagram of an eye sagging evaluation process according to an embodiment of the present invention. [Figure 22] 10 is a flowchart of an eye sagging evaluation process according to an embodiment of the present invention. [Figure 23] 1 is a block diagram showing an example of a hardware configuration of an eye sagging change reason determination device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] <Terminology> In this specification, "eye area" refers to the area of ​​the face defined by the area between the lower eyelid at the upper limit and the cheekbone at the lower limit, and laterally between the nose and the sideburns or ears, and refers to the two areas on either side of the nose. In this specification, the term "horizontal position" refers to a state in which the midline of the face is stationary and perpendicular to the direction of gravity. In this specification, the term "vertical position" refers to a state in which the midline of the face is held stationary and parallel to the direction of gravity. In this specification, "change in sagging around the eyes" refers to a change in the condition of the eyes. For example, a change in sagging around the eyes is an improvement in sagging around the eyes.

[0017] [Types of changes in sagging around the eyes] Hereinafter, types of changes in sagging around the eyes will be described with reference to FIGS.

[0018] FIG. 1 is a diagram for explaining an improved shape-up type and an improved pump-up type according to one embodiment of the present invention.

[0019] For multiple subjects whose eye sagging has changed (specifically, whose eye sagging has improved), the difference (i.e., change) between the three-dimensional shape of the subject's eyes when the subject is in a vertical position before the change in eye sagging and the three-dimensional shape of the subject's eyes when the subject is in a vertical position after the change in eye sagging was investigated.The subjects were then divided into three groups: those whose eye volume was smaller after the change in eye sagging than before (upper part of Figure 1, hereinafter also referred to as "shape-up improved type"); those whose eye volume was larger after the change in eye sagging than before (lower part of Figure 1, hereinafter also referred to as "pump-up improved type"); and those whose eye volume was the same before and after the change in eye sagging (hereinafter also referred to as "dark circle improved type").

[0020] The shape-up improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to the elimination of edema. The pump-up improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to the generation of firmness. The dark circle improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to a change in skin color around the eyes, including at least one of dark circles and pigmentation (hereinafter also referred to as dark circles and pigmentation).

[0021] Figure 2 is a diagram illustrating the shape-up and pump-up improvement effects of skincare products according to one embodiment of the present invention. For subjects (Nos. 1 to 5) whose eye sagging changed due to skincare products, "upper cheek ptosis (VC eye)" was investigated before and after the change (2 weeks after the change). Note that upper cheek ptosis refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0022] As shown in the graph in the upper left of Figure 2, all subjects (No. 1-5) had less upper cheek ptosis after the change than before the change. In addition, the amount of reduction in upper cheek ptosis for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) is shown in the graph in the lower left of Figure 2. The subjects were divided into those with improved shape-up (No. 1-3) and those with improved pump-up (No. 4-5).

[0023] 3 is a diagram illustrating the shape-up improvement type and pump-up improvement type by scalp massage according to one embodiment of the present invention. For subjects ((a) to (c)) whose eye sagging changed due to scalp massage, "upper cheek ptosis (VCeye)" was investigated before and after the change (2 weeks after the change). The upper cheek ptosis is the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0024] As shown in the graph in the upper left of Figure 3, all subjects ((a) to (c)) had less upper cheek ptosis after the change than before the change. In addition, the amount of reduction in upper cheek ptosis for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) is shown in the graph in the lower left of Figure 3. The subjects were divided into those with improved shape-up ((a)) and those with improved pump-up ((b) to (c)).

[0025] Figure 4 is a diagram illustrating the shape-up and pump-up improvement types using an RF (radio frequency) / EMS (electrical stimulation) facial beauty device according to one embodiment of the present invention. For subjects ((A) to (C)) whose eye sagging was changed by the RF / EMS facial beauty device, "upper cheek ptosis (VCeye)" was investigated before and after the change (one week after the change). Note that upper cheek ptosis refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0026] As shown in the graph in the upper left of Figure 4, all subjects (A to C) experienced a reduction in upper cheek ptosis after the change compared to before the change. Furthermore, the amount of reduction in upper cheek ptosis for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) was as shown in the graph in the lower left of Figure 4. Subjects were divided into those with improved shape-up (A) and those with improved pump-up (B to C).

[0027] As such, from the results of the investigation shown in Figures 1 to 4, it was found that the reason for the change in sagging around the eyes can be determined based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in sagging around the eyes and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in sagging around the eyes.

[0028] [Determining the cause of changes in sagging around the eyes] Hereinafter, the determination of the reason for the change in sagging around the eyes of a subject (a person whose reason for the change in sagging around the eyes is being determined) will be described with reference to Figures 5 to 8. Specifically, the determination of the reason for the change in sagging around the eyes will be described based on whether the volume around the eyes is smaller after the change in sagging around the eyes than before the change, or whether the volume around the eyes is larger after the change in sagging around the eyes than before the change, or whether the volume around the eyes before the change in sagging around the eyes is the same as the volume around the eyes after the change in sagging around the eyes.

[0029] <Overall composition> 5 is a configuration diagram of an eye sagging change reason determination system 1 according to one embodiment of the present invention. The eye sagging change reason determination system 1 includes an eye sagging change reason determination device 10 and a three-dimensional shape measurement device 20. Each of these will be described below.

[0030] The eye sagging change reason determination device 10 is a computer (e.g., a personal computer, tablet, smartphone, server, etc.) for determining the reason for change in eye sagging. Specifically, the eye sagging change reason determination device 10 determines the reason for change in eye sagging based on the difference (i.e., change) between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in eye sagging and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in eye sagging. For example, the day on which the three-dimensional shape of the subject's eyes before the change in eye sagging is measured is different from the day on which the three-dimensional shape of the subject's eyes after the change in eye sagging is measured. The eye sagging change reason determination device 10 will be described in detail below with reference to FIG. 6.

[0031] 5, the eye sagging change reason determination device 10 is described as a single computer, but it may be implemented as multiple computers (for example, a terminal such as a smartphone used by the subject, and a server capable of sending and receiving data to and from the terminal). For example, a terminal such as a smartphone used by the subject may transmit information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before and after a change in the sagging around the eyes to a server, and the server may receive from the server the results of its determination of the reason for the change in the sagging around the eyes.

[0032] The three-dimensional shape measuring device 20 is a device for measuring the three-dimensional shape of the subject's eyes. The three-dimensional shape measuring device 20 can generate images representing the three-dimensional shape of the subject's face, including at least the eyes. Specifically, the three-dimensional shape measuring device 20 generates an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before changes in sagging around the eyes occur, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after changes in sagging around the eyes occur.

[0033] <Function block> 6 is a functional block diagram of an eye sagging change reason determination device 10 according to one embodiment of the present invention. The eye sagging change reason determination device 10 can include a three-dimensional shape information acquisition unit 101, a determination unit 102, and a presentation unit 103. Furthermore, by executing a program, the eye sagging change reason determination device 10 can function as the three-dimensional shape information acquisition unit 101, the determination unit 102, and the presentation unit 103. Each of these will be described below.

[0034] The three-dimensional shape information acquisition unit 101 acquires information about the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and information about the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. For example, the three-dimensional shape information acquisition unit 101 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. The three-dimensional shape information acquisition unit 101 stores the acquired three-dimensional shape information of the subject's eyes in memory so that the determination unit 102 can refer to it.

[0035] The determination unit 102 determines the reason for the change in sagging around the eyes of the subject based on the information on the three-dimensional shape of the subject's eyes acquired by the three-dimensional shape information acquisition unit 111. Specifically, the determination unit 102 determines the reason for the change in sagging around the eyes based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in sagging around the eyes occurs and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in sagging around the eyes occurs. Three reasons are explained below.

[0036] <Shape-up improvement type> If the volume of the eyes after the change in the sagging around the eyes is smaller than before the change, the determination unit 102 determines that the change in the sagging around the eyes is due to the disappearance of edema that was originally present in the subject and was a cause of the sagging around the eyes.

[0037] <Pump-up improvement type> If the volume of the eyes after the sagging around the eyes has changed is larger than that before the change, the determination unit 102 determines that the change in the sagging around the eyes has been caused by an improvement in the lack of firmness that was originally present in the subject and that was a cause of the sagging around the eyes.

[0038] <Bear improvement type> When the determination unit 102 cannot determine whether the volume of the eyes before the change in sagging around the eyes and the volume of the eyes after the change in sagging around the eyes have increased or decreased, it determines that the change in sagging around the eyes has been caused by a change in the skin color around the eyes, including dark circles and pigmentation, which were originally present in the subject and were factors causing the sagging around the eyes.

[0039] The presentation unit 103 can present the result of the determination made by the determination unit 102 (for example, by displaying it on the display means of the eye sagging change reason determination device 10 or another device).

[0040] <Method> Hereinafter, a method for determining the cause of changes in sagging around the eyes will be described with reference to FIGS.

[0041] FIG. 7 is a sequence diagram of the process for determining the reason for change in sagging around the eyes according to one embodiment of the present invention.

[0042] In step 11 (S11), the three-dimensional shape measuring device 20 generates an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0043] In step 12 (S12), the device 10 for determining the reason for change in sagging eyes acquires from the three-dimensional shape measuring device 20 an image (image generated in S11) representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image (image generated in S11) representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0044] In step 13 (S13), the device 10 for determining the reason for change in sagging around the eyes of the subject determines the reason for change in sagging around the eyes of the subject based on the information on the three-dimensional shape of the eyes of the subject acquired in S12.

[0045] FIG. 8 is a flowchart of a process for determining the reason for a change in eye sagging according to one embodiment of the present invention.

[0046] In step 101 (S101), the three-dimensional shape information acquisition unit 101 of the eye sagging change reason determination device 10 acquires information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and information on the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. For example, the three-dimensional shape information acquisition unit 101 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0047] In step 102 (S102), the judgment unit 102 of the device 10 for determining the reason for a change in eye sagging judges the reason for the change in eye sagging based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in eye sagging, acquired in S101, and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in eye sagging.

[0048] Specifically, if the volume around the eyes is smaller after the change in sagging around the eyes than before the change, the determination unit 102 determines that the change in sagging around the eyes is due to the disappearance of edema. Also, if the volume around the eyes is larger after the change in sagging around the eyes than before the change in sagging around the eyes, the determination unit 102 determines that the change in sagging around the eyes is due to the generation of firmness. Also, if the volume around the eyes before the change in sagging around the eyes and the volume around the eyes after the change in sagging around the eyes are the same, the determination unit 102 determines that the change in sagging around the eyes is due to the disappearance of dark circles.

[0049] <Other embodiments> In one embodiment of the present invention, a correlation is generated between the reasons for changes in eye sagging determined for multiple subjects and the responses of the multiple subjects to a predetermined questionnaire (e.g., a questionnaire regarding eye sagging), and the correlation can be used to estimate the reasons for changes in eye sagging from the responses to the predetermined questionnaire. Specifically, the eye sagging change reason determination device 10 acquires the responses to the predetermined questionnaire from a person whose reasons for changes in eye sagging are to be estimated, and can use the correlation to estimate the reasons for changes in eye sagging from the responses to the predetermined questionnaire.

[0050] 9 shows an example in which a correlation is generated between the reasons for changes in eye sagging determined for multiple subjects and the responses of the multiple subjects to a predetermined questionnaire, and the reasons for changes in eye sagging are estimated from the responses to the predetermined questionnaire using the correlation. In the example, a questionnaire was administered to those (Nos. 1 to 5) shown in FIG. 2 whose eye sagging changed due to skincare products, regarding their skin concerns before the change.

[0051] The bottom of Figure 9 is an algorithm chart that uses the results of the skin concern questionnaire and the actual reasons for the change in eye sagging as training data to estimate the reasons for the change in eye sagging as actually determined from the skin concern questionnaire before the change.By using the algorithm, it is possible to estimate the reasons for the change in eye sagging caused by daily skin care using basic cosmetics before the change, simply by having people other than those whose eye sagging changed due to skin care products (No. 1 to 5) answer the skin concern questionnaire before the change.

[0052] <Effects> In the present invention, the reason (factor) for the change (e.g., improvement) in sagging around the eyes can be determined by comparing the volume of the eyes before the change in sagging around the eyes (e.g., before the improvement in sagging around the eyes) with the volume of the eyes after the change in sagging around the eyes (e.g., after the improvement in sagging around the eyes).

[0053] An example of a method for determining whether or not the sagging around the eyes of a subject has changed (for example, improved) will be described below. In one embodiment of the present invention, it is possible to determine whether or not the sagging around the eyes of a subject has changed using the method for evaluating sagging around the eyes described with reference to Figures 10 to 22.

[0054] [Factors that cause the appearance of sagging around the eyes] Hereinafter, factors that cause apparent sagging around the eyes will be described with reference to FIGS.

[0055] <Eye puffiness> First, we will explain "eye bulge" with reference to Figures 10 and 11. "Eye bulge" refers to the area that bulges more when the subject is in a vertical position than when the subject is in a horizontal position.

[0056] Fig. 10 is a diagram for explaining puffiness around the eyes. When 53 subjects in their 20s to 60s were examined for the presence or absence of puffiness around the eyes, the results shown in Fig. 10 were obtained.

[0057] The boxplot on the left side of Figure 10 shows the ages of those without eye puffiness ("no eye puffiness") and those with eye puffiness ("eye puffiness"). Those without eye puffiness ("no eye puffiness") are mainly distributed between the ages of 25 and 50, while those with eye puffiness ("eye puffiness") are mainly distributed between the ages of 40 and 60.

[0058] The bar graph on the right side of Figure 10 shows the number of people by age group who do not have eye puffiness ("no eye puffiness") and the number of people by age group who have eye puffiness ("eye puffiness"). In people in their 50s and 60s, there are more people with eye puffiness than those without. Furthermore, 62 percent of the total people do not have eye puffiness, while 38 percent have eye puffiness.

[0059] The results shown in FIG. 10 reveal that among people in their 50s and 60s, some have puffiness around the eyes and some do not.

[0060] Fig. 11 is a diagram for explaining puffiness around the eyes. The presence or absence of puffiness around the eyes of 33 subjects in their 50s and 60s was examined, and the results shown in Fig. 11 were obtained.

[0061] The box plot at the bottom right of Figure 11 shows the sagging scores of those without eye puffiness ("no eye puffiness") and those with eye puffiness ("eye puffiness"). Those without eye puffiness ("no eye puffiness") generally range from a sagging score of 2 to a sagging score of 3, while those with eye puffiness ("eye puffiness") generally range from a sagging score of 3 to a sagging score of 5.

[0062] Here, we will explain the "eye sagging score (also called the visual score (SSeye))." The "eye sagging score (SSeye)" is a numerical value (on a 7-point scale from 0 to 6; the higher the number, the more saggy the eyes appear) based on the visual evaluation of sagging around the eyes. 0: No sagging. The area shows a smooth shape. 1: Minor sagging. A slight bulge is visible near the lower eyelid. A slight depression is also visible near the inner corner of the eye. 2: Mild sagging. Bulges and depressions are clearly visible. 3: Moderate sagging. The bulge expands and the depression reaches the midpoint between the inner and outer canthus. 4: Severe sagging. The bulge expands and the depression extends beyond the midpoint between the medial and lateral canthi. 5: Significant sagging. The swelling extends to the entire area and the depression reaches the outer canthus. 6: Very pronounced sagging, with a bag-like bulge.

[0063] Based on a photograph of the face of the person being evaluated for sagging eyes taken at a 45-degree angle to the left or right, the evaluator determines which of the criteria 0 to 6 the eyes of the person being evaluated for sagging eyes most closely match, and an eye sagging score (visual score (SSeye)) is calculated from the result of the determination. If there are multiple evaluators, a representative value of the scores calculated by each evaluator is used. Representative values ​​include the average, mode, and median. The eye sagging score (visual score (SSeye)) of the person being evaluated for sagging eyes may be calculated using a trained model generated by machine learning using as training data images of the face on which the eye sagging score (visual score (SSeye)) has been determined.

[0064] The results shown in Figure 11 show that people in their 50s or older with a sagging score (visual score (SSeye)) of 4 or higher have puffiness around the eyes, which makes the area around the eyes appear sagging.

[0065] Here, the distribution of eye sagging scores (visual score (SSeye)) and age will be explained.

[0066] Fig. 12 is a diagram showing the relationship between eye sagging score and age. As shown in Fig. 12, the eye sagging score (visual score (SSeye)) increases with age (i.e., the eyes appear more saggy). Fig. 11 shows that people in their 50s or older with an eye sagging score (visual score (SSeye)) of 4 or higher have puffiness around the eyes, which makes the eyes appear saggy.

[0067] Below, we will explain the results of an analysis of why the eyes appear saggy for people in their 20s to 60s with an eye sagging score (visual score (SSeye)) of 4 or less.

[0068] <Upper cheek drooping> First, "upper cheek ptosis" will be described with reference to Figures 13 to 15. "Upper cheek ptosis" refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position (for example, the area surrounded by the dotted line in Figure 13). The volume (cc) of the depression when the subject is in a vertical position than when the subject is in a horizontal position is referred to as VCeye.

[0069] Fig. 14 is a diagram showing the relationship between the sagging score around the eyes and drooping of the upper cheeks. As shown in Fig. 14, the larger VCeye was, the higher the sagging score around the eyes (visual score (SSeye)).

[0070] Figure 15 shows the relationship between age and the amount of ptosis in the upper cheek (VCeye), and the relationship between the amount of ptosis in the upper cheek (VCeye) and the sagging score around the eyes. The VCeye and sagging score around the eyes (visual score (SSeye)) were measured for 53 subjects in their 20s to 60s.

[0071] The left side of Figure 15 shows the relationship between age and the amount of ptosis of the upper cheek (VCeye). As shown in the graph, the older the age, the greater the amount of ptosis of the upper cheek (VCeye).

[0072] The right side of Figure 15 shows the relationship between the amount of ptosis in the upper cheek (VCeye) and the sagging score around the eyes. As shown in the graph, the greater the amount of ptosis in the upper cheek (VCeye), the higher the sagging score around the eyes.

[0073] The results shown in Figs. 13 to 15 reveal that drooping of the upper cheeks contributes to the appearance of sagging around the eyes.

[0074] <Swelling around the eyes and sagging upper cheeks> FIG. 16 is a diagram showing the relationship between the eye sagging score and the degree of eye puffiness and upper cheek ptosis. As shown in FIG. 16, the higher the eye sagging score (visual score (SSeye)), the more both eye puffiness and upper cheek ptosis were present. Furthermore, the higher the eye sagging score (visual score (SSeye)), the greater the amount of eye puffiness (i.e., the greater the difference between the shape of the puffy part in the horizontal position and the shape in the vertical position) when the face was in the vertical position than when the face was in the horizontal position. Furthermore, the higher the eye sagging score (visual score (SSeye)), the greater the amount of upper cheek ptosis (i.e., the greater the difference between the shape of the concave part in the horizontal position and the shape in the vertical position) when the face was in the vertical position than when the face was in the horizontal position.

[0075] In this way, two factors that make up the appearance of sagging around the eyes were discovered (namely, "eye fullness (protrusion of the eye socket)" and "upper cheek drooping"). Specifically, it was found that people who have both the factors "eye fullness" and "upper cheek drooping" have skin that looks sagging around the eyes. Furthermore, it was found that in people who have both the factors "eye fullness" and "upper cheek drooping," the greater the amount of eye fullness, the more sagging their eyes appear. Furthermore, it was found that in people who have both the factors "eye fullness" and "upper cheek drooping," the greater the amount of upper cheek drooping, the more sagging their eyes appear.

[0076] <Estimation of the amount of ptosis in the upper cheek (VCeye)> FIG. 17 is a diagram for explaining the estimation of the amount of upper cheek ptosis (VCeye). The upper left side of FIG. 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from age, utilizing the fact that there is a good correlation between age and the amount of upper cheek ptosis (VCeye). The regression equation for estimating the amount of upper cheek ptosis (VCeye) from age was obtained from a regression line using the coordinates in the upper left side of FIG. 17. The upper right side of FIG. 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from the eye sagging score (visual score (SSeye)) by utilizing the fact that there is a good correlation between the eye sagging score (visual score (SSeye)) and the amount of upper cheek ptosis (VCeye). The regression equation for estimating the amount of upper cheek ptosis (VCeye) from the eye sagging score (visual score (SSeye)) was obtained from a regression line using the coordinates in the upper right side of FIG. 17. The lower part of Figure 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from age and the eye sagging score (visual score (SSeye)), taking advantage of the good correlation between age and the eye sagging score (visual score (SSeye)), and the multiple regression equation used to make this estimation. The coefficients and regression statistics of the multiple regression equation for estimating the amount of upper cheek ptosis (VCeye) from age and the eye sagging score (visual score (SSeye)) were obtained by multiple regression analysis from the coordinates in the upper left and upper right parts of Figure 17.

[0077] <Dark circles and pigmentation around the eyes> Apart from the two factors that make up the appearance of sagging around the eyes (i.e., "eye puffiness (protrusion of the eye socket)" and "upper cheek drooping (upper cheek drooping)"), the skin color around the eyes, including dark circles and pigmentation, also affects the eye sagging score (visual score (SSeye)).

[0078] Figure 18 is a diagram explaining how the eye sagging score (visual score (SSeye)) is affected by the skin color around the eyes, including dark circles and pigmentation. A questionnaire was given to 63 subjects in their 20s to 40s asking whether they felt they had dark circles around their eyes, and the results shown at the top of Figure 18 were obtained. The eye sagging score (visual score (SSeye)) of those who answered "I feel dark circles around my eyes" was significantly higher than the eye sagging score (visual score (SSeye)) of those who answered "I feel some dark circles around my eyes." This shows that the eye sagging score (visual score (SSeye)) is evaluated higher depending on the skin color around the eyes, including dark circles and pigmentation.

[0079] The bottom of Figure 18 shows the results of comparing the eye sagging score (visual score (SSeye)) estimated from VCeye with the eye sagging score (visual score (SSeye)), taking advantage of the fact that the eye sagging score (visual score (SSeye)) is evaluated higher depending on the skin color around the eyes, including dark circles and pigmentation. In the bottom of Figure 18, based on vector 1 perpendicular to line 1 (definition formula 1), the results are divided into three groups: a group (black triangles) in which the actual sagging score is higher than the eye sagging score (visual score (SSeye)) estimated from VCeye, a group (white squares) in which the actual sagging score is similar to the eye sagging score (visual score (SSeye)) estimated from VCeye, and a group (black circles) in which the actual sagging score is lower than the eye sagging score (visual score (SSeye)) estimated from VCeye.

[0080] For the group (black triangles) whose actual sagging score is greater than the eye sagging score (visual score (SSeye)) estimated by VCeye, the sagging score is highly evaluated due to the skin color around the eyes, including dark circles and pigmentation. Therefore, it is possible to recommend treatments that will improve not only the two factors that make up the apparent sagging around the eyes (i.e., "puffiness around the eyes (protrusion of the eye sockets)" and "upper cheek ptosis (upper cheek ptosis)"), but also the skin color around the eyes, including dark circles and pigmentation.

[0081] The group (black circles) whose actual sagging score is smaller than the eye sagging score (visual score (SSeye)) estimated by VCeye is not noticeable from the appearance of sagging around the eyes, but because they have a large amount of "upper cheek droop" that makes up the appearance of sagging around the eyes, it is possible to recommend treatment to improve the "upper cheek droop" that makes up the appearance of sagging around the eyes before the symptoms worsen and become apparent.

[0082] [Evaluation of sagging around the eyes] The evaluation of sagging around the eyes of a subject (a person whose sagging around the eyes is evaluated) will be described below with reference to Figures 19 to 22. Specifically, the evaluation of sagging around the eyes will be described using two factors: "sagging around the eyes," which is more swollen when the subject is in a vertical position than when the subject is in a horizontal position, and "sagging of the upper cheeks," which is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0083] <Overall composition> 19 is a configuration diagram of an eye sagging evaluation system 2 according to one embodiment of the present invention. The eye sagging evaluation system 2 includes an eye sagging evaluation device 11 and a three-dimensional shape measurement device 20. Each of these will be described below.

[0084] The eye sagging evaluation device 11 is a computer (e.g., a personal computer, tablet, smartphone, server, etc.) for evaluating eye sagging. Specifically, the eye sagging evaluation device 11 evaluates at least one of eye fullness and upper cheek drooping based on the difference (i.e., change) between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and the three-dimensional shape of the subject's eyes when the subject is in a vertical position, and evaluates eye sagging based on at least one of the eye fullness and upper cheek drooping. Note that the eye sagging evaluation device 11 may be implemented on the same computer as the eye sagging change reason determination device 10. The eye sagging evaluation device 11 will be described in detail later with reference to FIG. 20.

[0085] 19, the eye sagging evaluation device 11 is described as one computer, but it may be implemented as multiple computers (for example, a terminal such as a smartphone used by the subject, and a server capable of transmitting and receiving data to and from the terminal). For example, the terminal such as a smartphone used by the subject may transmit information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and a vertical position to a server, and the server may receive the results of its evaluation of eye sagging from the server.

[0086] The three-dimensional shape measuring device 20 is a device that measures the three-dimensional shape of the subject's eyes. The three-dimensional shape measuring device 20 can generate images that represent the three-dimensional shape of the subject's face, including at least the eyes. Specifically, the three-dimensional shape measuring device 20 generates images that represent the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position (specifically, when the midline of the face is held still perpendicular to the direction of gravity) and when the subject is in a vertical position (specifically, when the midline of the face is held still parallel to the direction of gravity).

[0087] <Function block> 20 is a functional block diagram of an eye sagging evaluation device 11 according to one embodiment of the present invention. The eye sagging evaluation device 11 can include a three-dimensional shape information acquisition unit 111, an evaluation unit 112, and a presentation unit 113. Furthermore, by executing a program, the eye sagging evaluation device 11 can function as the three-dimensional shape information acquisition unit 111, the evaluation unit 112, and the presentation unit 113. Each of these will be described below.

[0088] The three-dimensional shape information acquisition unit 111 acquires information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position. For example, the three-dimensional shape information acquisition unit 111 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a horizontal position, and an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a vertical position. The three-dimensional shape information acquisition unit 111 stores the acquired three-dimensional shape information of the subject's eyes in memory so that the evaluation unit 112 can refer to it.

[0089] The evaluation unit 112 evaluates sagging around the eyes of the subject based on the information on the three-dimensional shape of the eyes of the subject acquired by the three-dimensional shape information acquisition unit 111. Below, the evaluation will be explained separately into evaluation of puffiness around the eyes and drooping of the upper cheeks, and evaluation of sagging around the eyes based on puffiness around the eyes and drooping of the upper cheeks.

[0090] <<Evaluation of puffiness around the eyes and sagging of the upper cheeks>> The evaluation unit 112 evaluates at least one of the puffiness of the eyes and the sagging of the upper cheeks based on the difference between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and the three-dimensional shape of the subject's eyes when the subject is in a vertical position.

[0091] Specifically, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject is in the vertical position than when the subject is in the horizontal position as the amount of bulging around the eyes. The evaluation unit 112 also calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is dented more when the subject is in the vertical position than when the subject is in the horizontal position as the amount of sagging of the upper cheeks.

[0092] <<Evaluation of sagging around the eyes>> The evaluation unit 112 evaluates sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks.

[0093] Specifically, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of eye swelling. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of upper cheek drooping.

[0094] The presentation unit 113 presents cosmetics or beauty methods according to the evaluation of sagging around the eyes by the evaluation unit 112 (for example, by displaying them on the display means of the eye sagging evaluation device 11 or another device). The presentation unit 113 can also present the results of the evaluation by the evaluation unit 112 (for example, by displaying them on the display means of the eye sagging evaluation device 11 or another device). The presentation unit 103 can also present an image in which the results of the evaluation of sagging around the eyes are superimposed on a photograph of the subject's face.

[0095] <Method> Hereinafter, the method for evaluating sagging around the eyes will be described with reference to FIGS.

[0096] FIG. 21 is a sequence diagram of the process of evaluating sagging around the eyes according to one embodiment of the present invention.

[0097] In step 21 (S21), the three-dimensional shape measuring device 20 generates images representing the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position (specifically, when the midline of the face is held still perpendicular to the direction of gravity) and when the subject is in a vertical position (specifically, when the midline of the face is held still parallel to the direction of gravity).

[0098] In step 22 (S22), the eye sagging evaluation device 11 acquires from the three-dimensional shape measurement device 20 images (images generated in S21) representing the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position and when the subject is in a vertical position.

[0099] In step 23 (S23), the eye sagging evaluation device 11 evaluates the eye sagging of the subject based on the information on the three-dimensional shape of the subject's eyes acquired in S22.

[0100] In step 24 (S24), the eye sagging evaluation device 11 presents cosmetics or beauty methods according to the evaluation of eye sagging in S23 (for example, displays on the display means of the eye sagging evaluation device 11 or another device).

[0101] FIG. 22 is a flowchart of the process for evaluating sagging around the eyes according to one embodiment of the present invention.

[0102] In step 201 (S201), the three-dimensional shape information acquisition unit 111 of the eye sagging evaluation device 11 acquires information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position. For example, the three-dimensional shape information acquisition unit 111 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a horizontal position, and an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a vertical position.

[0103] In step 202 (S202), the evaluation unit 112 of the eye sagging evaluation device 11 evaluates at least one of the puffiness around the eyes and the sagging of the upper cheeks based on the difference between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position, obtained in S201, and the three-dimensional shape of the subject's eyes when the subject is in a vertical position.

[0104] Specifically, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject of S201 is in the vertical position than when the subject is in the horizontal position as the amount of bulging around the eyes. Also, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is dented more when the subject of S201 is in the vertical position than when the subject is in the horizontal position as the amount of sagging of the upper cheeks.

[0105] In step 203 (S203), the evaluation unit 112 of the eye sagging evaluation device 11 evaluates the eye sagging based on at least one of the eye swelling and upper cheek drooping in S202.

[0106] Specifically, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of eye swelling. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of upper cheek drooping.

[0107] In step 204 (S204), the presentation unit 113 of the eye sagging evaluation device 11 presents cosmetics or beauty methods according to the evaluation of eye sagging in S203 (for example, displays on the display means of the eye sagging evaluation device 11).

[0108] <Effects> In the present invention, sagging around the eyes can be evaluated using two factors: "eye fullness," which is greater when the subject is in a vertical position than when the subject is in a horizontal position, and "upper cheek drooping," which is greater when the subject is in a vertical position than when the subject is in a horizontal position. This allows for a more objective evaluation than visual evaluation.

[0109] <Hardware configuration> 23 is a block diagram showing an example of the hardware configuration of the eye sagging change reason determination device 10 and eye sagging evaluation device 11 according to one embodiment of the present invention. The eye sagging change reason determination device 10 and eye sagging evaluation device 11 have a CPU (Central Processing Unit) 1001, ROM (Read Only Memory) 1002, and RAM (Random Access Memory) 1003. The CPU 1001, ROM 1002, and RAM 1003 form a so-called computer.

[0110] The device 10 for determining the reason for a change in eye sagging and the device 11 for evaluating eye sagging can also include an auxiliary storage device 1004, a display device 1005, an operation device 1006, an I / F (Interface) device 1007, and a drive device 1008. The hardware components of the device 10 for determining the reason for a change in eye sagging and the device 11 for evaluating eye sagging are connected to each other via a bus B.

[0111] The CPU 1001 is a computing device that executes various programs installed in the auxiliary storage device 1004 .

[0112] The ROM 1002 is a non-volatile memory. The ROM 1002 functions as a main storage device that stores various programs, data, etc. required for the CPU 1001 to execute various programs installed in the auxiliary storage device 1004. Specifically, the ROM 1002 functions as a main storage device that stores boot programs such as a BIOS (Basic Input / Output System) and an EFI (Extensible Firmware Interface).

[0113] The RAM 1003 is a volatile memory such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). The RAM 1003 functions as a main storage device that provides a working area in which various programs installed in the auxiliary storage device 1004 are expanded when the CPU 1001 executes them.

[0114] The auxiliary storage device 1004 is an auxiliary storage device that stores various programs and information used when the various programs are executed.

[0115] The display device 1005 is a display device that displays the internal state of the eye sagging change reason determination device 10 and the eye sagging evaluation device 11, etc.

[0116] The operation device 1006 is an input device through which an administrator of the eye sagging change reason determining device 10 and the eye sagging evaluation device 11 inputs various instructions to the eye sagging change reason determining device 10 and the eye sagging evaluation device 11 .

[0117] The I / F device 1007 is a communication device that connects to a network and communicates with other devices.

[0118] Drive device 1008 is a device for loading storage medium 1009. The storage medium 1009 here includes media that record information optically, electrically, or magnetically, such as CD-ROMs, flexible disks, and magneto-optical disks. Storage medium 1009 may also include semiconductor memories that record information electrically, such as EPROMs (Erasable Programmable Read Only Memory) and flash memories.

[0119] The various programs to be installed in the auxiliary storage device 1004 are installed, for example, by setting the distributed storage medium 1009 in the drive device 1008 and reading out the various programs recorded on the storage medium 1009 by the drive device 1008. Alternatively, the various programs to be installed in the auxiliary storage device 1004 may be installed by being downloaded from a network via the I / F device 1007.

[0120] Although the examples of the present invention have been described in detail above, the present invention is not limited to the specific embodiments described above, and various modifications and variations are possible within the scope of the gist of the present invention as set forth in the claims.

[0121] This international application claims priority based on Japanese Patent Application No. 2021-107017 filed on June 28, 2021, and Japanese Patent Application No. 2021-107018 filed on June 28, 2021, the entire contents of which are hereby incorporated by reference into this international application. [Explanation of symbols]

[0122] 1. System for determining the reason for changes in eye sagging 10. Device for determining the reason for changes in eye sagging 20 Three-dimensional shape measuring device 101 3D shape information acquisition unit 102 Judgment section 103 Presentation section 2 Eye bag evaluation system 11 Eye bag evaluation device 111 3D shape information acquisition unit 112 Evaluation Department 113 Presentation section 1001 CPU 1002 ROM 1003 RAM 1004 Auxiliary storage device 1005 Display device 1006 Operating device 1007 I / F device 1008 Drive device 1009 Storage medium

Claims

1. Acquiring information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; Evaluating at least one of the fullness of the eyes and the drooping of the upper cheeks based on a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; Evaluating sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks; A method for evaluating sagging around the eyes, including:

2. Acquiring information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; Evaluating both the fullness of the eyes and the drooping of the upper cheeks based on a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; When both the swelling around the eyes and the drooping of the upper cheeks are present around the eyes, the area around the eyes is evaluated as sagging. A method for evaluating sagging around the eyes, including:

3. The amount of bulging around the eyes is the difference between the shape in a horizontal position and the shape in a vertical position at a part that is bulging more when the subject is in a vertical position than when the subject is in a horizontal position, The method for evaluating sagging around the eyes according to claim 1 or 2, wherein the eyes are evaluated as being more sagging as the amount of swelling around the eyes increases.

4. The amount of drooping of the upper cheek is the difference between the shape in the horizontal position and the shape in the vertical position of a part that is more concave when the subject is in the vertical position than when the subject is in the horizontal position, The method for evaluating sagging around the eyes according to claim 1 or 2, wherein the greater the amount of drooping of the upper cheek, the more sagging the area around the eyes is evaluated to be.

5. 2. The method for evaluating sagging around the eyes according to claim 1, wherein the amount of sagging of the upper cheek (VCeye) is estimated from age, taking advantage of the correlation between age and the amount of sagging of the upper cheek (VCeye).

6. 2. The method for evaluating sagging around the eyes according to claim 1, wherein the amount of sagging of the upper cheeks (VCeye) is estimated from the sagging score around the eyes, taking advantage of the correlation between the sagging score around the eyes and the amount of sagging of the upper cheeks (VCeye).

7. 2. The method for evaluating sagging around the eyes according to claim 1, wherein the amount of sagging around the upper cheek (VCeye) is estimated from both the eye sagging score and age, taking advantage of the correlation between age and the amount of sagging around the upper cheek (VCeye) and the correlation between the eye sagging score and the amount of sagging around the upper cheek (VCeye).

8. 2. The method for evaluating sagging around the eyes according to claim 1, comprising evaluating that the eyes appear to be sagging due to skin color around the eyes including at least one of dark circles and pigmentation when the actual sagging around the eyes score (visual score (SSeye)) is higher than the sagging around the eyes score (visual score (SSeye)) estimated from the amount of drooping of the upper cheek (VCeye).

9. 2. The method for evaluating sagging around the eyes according to claim 1, comprising evaluating that the sagging around the upper cheeks is greater than the apparent sagging around the eyes when the actual sagging around the eyes score (visual score (SSeye)) is lower than the sagging around the eyes score (visual score (SSeye)) estimated from the amount of sagging around the upper cheeks (VCeye).

10. The method for evaluating sagging around the eyes according to claim 1 , further comprising suggesting a cosmetic product or beauty treatment in accordance with the evaluation of the sagging around the eyes.

11. The method for evaluating sagging around the eyes according to claim 1 , further comprising: presenting an image in which the results of the evaluation of sagging around the eyes are superimposed on a photograph of the subject's face.

12. a three-dimensional shape information acquisition unit that acquires information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; evaluate at least one of the swelling of the eyes and the drooping of the upper cheeks based on a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; an evaluation unit that evaluates sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks; and The eye sagging evaluation device is provided with:

13. Eye sagging evaluation device a three-dimensional shape information acquisition unit that acquires information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; evaluate at least one of the swelling of the eyes and the drooping of the upper cheeks based on a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; an evaluation unit that evaluates the sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks. A program to function as a

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