Glasses lens supply system, glasses lens supply method, and program for glasses lens supply system

Abstract

The present invention provides an eyeglasses lens supply system and a technique related thereto, the eyeglasses lens supply system comprising a display unit that displays a relationship selected on the basis of at least one of relationships 1-3, the colors of the glasses lens corresponding to a plurality of spectral transmittances respectively are set according to the solar radiation intensity of a region where the glasses lens is used and the spectral transmittances of eyes of a wearer of the glasses lens.

Description

TECHNICAL FIELD

[0001] The present application relates to a spectacle lens supply system, a spectacle lens supply method, and a program for a spectacle lens supply system. BACKGROUND

[0002] In Non-Patent Literature 1, a research result on a symptom, a disease, or the like due to abnormality of lens epithelial cells, such as secondary cataract, is disclosed. Note that the secondary cataract refers to the following.

[0003] Treatment of a patient after onset of cataract includes cataract surgery. Generally, a cloudy lens is removed from an incised lens capsule (ultrasonic phacoemulsification), and an intraocular lens is inserted into the lens capsule as a substitute. The intraocular lens is covered with the partially incised lens capsule.

[0004] Complications occur after surgery. As one of them, after surgery, lens epithelial cells and the like remaining in the lens capsule proliferate in a gap between the posterior surface of the intraocular lens (the surface on the inner side of the eye, the surface in the direction opposite to the object side in the front of the eye) and the lens capsule, thereby causing the lens capsule to become cloudy (posterior capsule opacification), and further development causes the light transmittance into the eye to decrease, thereby causing the visual function to decrease, which is called secondary cataract. In this case, a representative treatment method is to remove the cloudiness using a YAG laser.

[0005] In Japan, around 2020, about 30% of the number of cataract surgeries (lens repair surgeries) is surgeries for treating secondary cataract, which is considered to be a problem. Also, it is considered that abnormality of lens epithelial cells is also related to other lens-related symptoms and diseases.

[0006] Regarding the lens epithelial cells as one cause of secondary cataract, Non-Patent Literature 1 considers that it is very meaningful to understand whether or how the lens epithelial cells change in the living environment of a person (hereinafter referred to as a subject), that is, what kind of light is incident on the eye of the subject.

[0007] Based on the above viewpoint, in Non-Patent Literature 1, a research result of the influence of the wavelength and the irradiance of light on the lens epithelial cells is disclosed. This research result shows that depending on the wavelength and the irradiance of light, the lens epithelial cells change in shape, become irregular in shape, and further decrease in migration ability.

[0008] As the research result of Non-Patent Literature 1 Figure 1 is the irradiance (vertical axis: unit is W / m2 A graph in which the state of the morphological change of the lens epithelial cells and the state of the change in the migration ability are indicated together in relation to the wavelength (horizontal axis: unit, nm) is shown in FIG. 1. In the graph, the sunlight is also indicated as a reference.

[0009] In the non-patent literature 1, it is considered that, in Figure 1 , the single-dot chain line sets the boundary of the small effect and the middle effect, the broken line sets the boundary of the middle effect and the large effect, and the solid line sets the boundary of the presence or absence of the abnormality in the cell morphology. From Figure 1 , it is known that the light of the low irradiance has a tendency to decrease the motility in the range of 400 to 520 nm compared to the sunlight. Also, the decrease in the migration ability is more significant under the condition of the short wavelength and the high irradiance, and thus it is considered that the filter design having the correlation of the exponential function is appropriate.

[0010] Figure 2 is a graph indicating the shielding characteristics of the optical filter that suppresses the large effect and the middle effect, derived from the boundary line of Figure 1 , and is a graph of the transmittance (vertical axis: unit, %) in relation to the wavelength (horizontal axis: unit, nm).

[0011] Prior art document

[0012] Non-patent literature

[0013] Non-patent literature 1: “Evaluation of the effect of light irradiation in a wound healing model for preventing secondary cataract” (Akihiro Nishida, Masataka Tomita, Yuki Tani, Hiroe Yoshida) (33rd Bio Frontier Seminar of the Japan Society of Mechanical Engineers (December 17-18, 2022) 1C-09) SUMMARY

[0014] PROBLEMS TO BE SOLVED BY THE INVENTION

[0015] In view of the non-patent literature 1, the present inventors have conducted careful studies, and as a result, the following viewpoints have been clarified.

[0016] In the Figure 1 and Figure 2 disclosed in the non-patent literature 1, the range of the irradiance is set only on the basis of the approximate irradiance of the sunlight (AM1.5) at the anterior surface of the lens. As for the approximate irradiance, the half-width of each band-pass filter is calculated as the wavelength width on the basis of the spectral irradiance of the sunlight (AM1.5) at the anterior surface of the lens.

[0017] AM is called air mass, and is a ratio of a path of sunlight when the sunlight is taken as a reference in a case where the sunlight is vertically incident with respect to the ground surface (AM1), and for the latitude of Japan, AM1.5 is generally used.

[0018] On the other hand, the radiation intensity (irradiance) of light greatly differs depending on the region on the earth. For example, simply put, as shown in the following website (https: / / documentsl.worldbank.org / curated / en / 529431592893043403 / pdf / Global-Solar-Atlas-2-0-Technical-Report.pdf), the solar irradiance greatly differs in the world.

[0019] Also, for example, even within the United States of America, the annual average of the solar irradiance in Florida is 1.25 times that in Massachusetts (https: / / www.nrel.gov / gis / solar-resource-maps.html).

[0020] In addition, in the case of a region where snow is much, the reflection of short-wavelength light caused by snow is also about 2 to 3 times that of the reflection of short-wavelength light caused by soil (https: / / pdfs.semanticscholar.org / 5fa8 / 86d72e792fdd0c5e8818e3025b3354db4372.pdf).

[0021] As a new finding by the present inventors, it can be mentioned that the spectral transmittance of the eye of a wearer of a spectacle lens greatly differs depending on the wearer. For example, in the case where an intraocular lens has been transplanted in the lens capsule of a wearer, the spectral transmittance of the intraocular lens needs to be considered to reconstruct the above-described Figure 2 .

[0022] Note that Non-Patent Literature 1 also describes the following.

[0023] - It is reported that in the case where porcine retinal pigment epithelial cells are irradiated with light of 415 to 455 nm, which is the same degree of irradiance as sunlight, the cell survival rate decreases.

[0024] - This region coincides with the range of large effect of the action spectrum obtained in the present study.

[0025] - It is thus considered that the wavelength-irradiance band of large effect has an adverse effect on retinal pigment epithelial cells, and is a region that should be shielded.

[0026] Based on the above, it is a new finding that the above viewpoint is applicable to cells other than lens epithelial cells (hereinafter referred to as ocular cells) that are associated with the eye.

[0027] The inventors of the present application set the following as a first stage of the problem as one embodiment of the present application. That is, to provide a spectacle lens that takes countermeasures against phototoxicity to ocular cells as a first stage of the problem.

[0028] The inventors of the present application further studied the above first stage of the problem. As a result, the following was found as a second stage of the problem.

[0029] Although a spectacle lens that takes countermeasures against phototoxicity to ocular cells is provided, it was found that whether or not the purchaser is satisfied with the visual effect when the spectacle lens is seen at an optical shop is another problem.

[0030] For example, there is a case where a spectacle lens that takes countermeasures against phototoxicity is colored yellow, for example, in relation to a prescribed spectral transmittance. In this case, there is a possibility that a purchaser who has not seen the spectacle lens in the state of being colored in advance is not satisfied with the spectacle lens when actually seeing the real thing. In this case, customer satisfaction is greatly reduced.

[0031] An object of one embodiment of the present application is to provide a technology related to improving customer satisfaction of a purchaser when a spectacle lens that takes countermeasures against phototoxicity to ocular cells is provided.

[0032] Technical Solution for Solving Technical Problem

[0033] A first embodiment of the present application is a spectacle lens providing system including a display portion that displays colors of spectacle lenses corresponding to a plurality of spectral transmittances respectively set in accordance with a solar radiation intensity of a region in which the spectacle lenses are used and a spectral transmittance of an eye of a wearer of the spectacle lenses, based on a relationship selected from at least any one of the following relationships,

[0034] (1) a relationship 1 of wavelengths and irradiance of light that distinguishes whether or not the light causes a morphological change of ocular cells of the wearer of the spectacle lenses, corresponding to a range 1 required for the morphological change of the ocular cells,

[0035] (2) a relationship 2 of wavelengths and irradiance of light that distinguishes whether or not the light changes a migration ability of ocular cells of the wearer of the spectacle lenses, corresponding to a range 2 required for the migration ability of the ocular cells,

[0036] (3) a relationship 3 between the wavelength and the irradiance of light that distinguishes whether or not the invasiveness of the ocular cells changes, corresponding to a range 3 required for the invasiveness of the ocular cells of the wearer of the spectacle lens.

[0037] A second embodiment of the present application is a supply system of a spectacle lens according to the first embodiment, provided with an input section having a function of inputting characteristics of the wearer of the spectacle lens, and the wearer of the spectacle lens preselects a favorite color of the spectacle lens, and the selection content is inputted.

[0038] A third embodiment of the present application is a supply system of a spectacle lens according to the first or second embodiment, in which a plurality of spectral transmittances of the spectacle lens are set based on the characteristics of the wearer of the spectacle lens, in addition to the solar radiation intensity of the region where the spectacle lens is used and the spectral transmittance of the eye of the wearer of the spectacle lens.

[0039] A fourth embodiment of the present application is a supply system of a spectacle lens according to any one of the first to third embodiments, in which the plurality of spectral transmittances are set based on the relationships 1 to 3.

[0040] In the following embodiments, the above embodiments can be combined.

[0041] A fifth embodiment of the present application is a supply method of a spectacle lens, having a display step of displaying colors of the spectacle lens respectively corresponding to a plurality of spectral transmittances set based on a relationship selected from at least any one of the following relationships, according to the solar radiation intensity of the region where the spectacle lens is used and the spectral transmittance of the eye of the wearer of the spectacle lens,

[0042] (1) a relationship 1 between the wavelength and the irradiance of light that distinguishes whether or not the morphological change of the ocular cells occurs, corresponding to a range 1 required for the morphological change of the ocular cells of the wearer of the spectacle lens,

[0043] (2) a relationship 2 between the wavelength and the irradiance of light that distinguishes whether or not the migration ability of the ocular cells changes, corresponding to a range 2 required for the migration ability of the ocular cells of the wearer of the spectacle lens,

[0044] (3) a relationship 3 between the wavelength and the irradiance of light that distinguishes whether or not the invasiveness of the ocular cells changes, corresponding to a range 3 required for the invasiveness of the ocular cells of the wearer of the spectacle lens.

[0045] The sixth embodiment of the present invention is a program for a spectacle lens supply system, which enables a computer to function as a display unit. This display unit shows the colors of the spectacle lenses corresponding to multiple spectral transmittances, each set based on a relation selected from at least one of the following: the solar radiation intensity of the region where the spectacle lenses are used and the spectral transmittance of the wearer's eye.

[0046] (1) The relationship between wavelength of light and irradiance that corresponds to the range of morphological changes in the eye cells of the wearer of the spectacle lens, and whether or not the changes in the morphology of the eye cells are caused.

[0047] (2) The relationship between wavelength of light and irradiance that corresponds to the range 2 required for the migration ability of eye cells in the wearer of the spectacle lens, distinguishing whether the migration ability of eye cells is altered.

[0048] (3) The relationship between wavelength of light and irradiance that distinguishes whether the infiltration of eye cells changes, corresponding to the range required for the infiltration of eye cells by the wearer of the eyeglass lens.

[0049] The effects of the invention

[0050] According to one embodiment of the present invention, it is possible to provide technology related to improving customer satisfaction when providing eyeglass lenses that have taken precautions against phototoxicity to eye cells. Attached Figure Description

[0051] Figure 1 The irradiance at the location of the object illuminated by each light source (10nm half-width) used in the experiment (vertical axis: unit W / m²) 2 The graph shows the relationship between wavelength (horizontal axis: unit is nm) and lens epithelial cells, along with changes in their morphology and migration ability. Sunlight is also included as a reference in this graph.

[0052] Figure 2 From Figure 1 The graph derived from the boundary line represents the shielding characteristics of optical filters that suppress large and middle effects. It is a graph showing the relationship between transmittance (vertical axis: in %) and wavelength (horizontal axis: in nm).

[0053] Figure 3A This is a graph showing the relationship between transmittance (vertical axis: in %) and wavelength (horizontal axis: in nm) with FT11(λ) (left), FT21(λ) (middle), and FT31(λ) (right).

[0054] Figure 3Bis a graph of FT11(λ), FT21(λ), FT31(λ), FT32(λ), FT22'(λ), FT21(λ) in the relationship between transmittance (vertical axis: unit, %) and wavelength (horizontal axis: unit, nm).

[0055] Figure 4 is a graph in Example 1, in which the horizontal axis (unit: nm) is wavelength and the vertical axis is "relative value of user individual data to reference value", and is a graph of relative luminance to the reference solar irradiance in the user environment as individual data indicated by a two-dot chain line, and relative transmittance of the in-eye lens implanted eye to the standard eye for the wearer J indicated by a single dot chain line.

[0056] Figure 5 is a graph in Example 1, in which the vertical axis is spectral transmittance (unit: %) and the horizontal axis is wavelength (unit: nm), and the dotted line indicates the upper limit value of the spectral transmittance suitable for the wearer J under the reference condition (AM 1.5), the broken line indicates the upper limit value of the spectral transmittance suitable for the wearer J in the use region of the spectacle lens, and the solid line indicates the spectral transmittance of the spectacle lens.

[0057] Figure 6 is a graph in Example 1, in which the vertical axis is spectral transmittance (unit: %) and the horizontal axis is wavelength (unit: nm), and the broken line indicates the spectral transmittance of the lens substrate, the dotted line indicates the spectral transmittance of the functional film, and the solid line indicates the spectral transmittance of the spectacle lens.

[0058] Figure 7 is a graph in Example 2, in which the horizontal axis is wavelength (unit: nm) and the vertical axis is "relative value of user individual data to reference value", and is a graph of relative luminance to the reference solar irradiance in the user environment as individual data indicated by a two-dot chain line, and relative transmittance of the in-eye lens implanted eye to the standard eye for the wearer K indicated by a single dot chain line.

[0059] Figure 8 is a graph in Example 2, in which the vertical axis is spectral transmittance (unit: %) and the horizontal axis is wavelength (unit: nm), and the dotted line indicates the upper limit value of the spectral transmittance suitable for the wearer K under the reference condition (AM 1.5), the broken line indicates the upper limit value of the spectral transmittance suitable for the wearer K in the use region of the spectacle lens, and the solid line indicates the spectral transmittance of the spectacle lens.

[0060] Figure 9is a graph in which the spectral transmittance (unit: %) is the vertical axis and the wavelength (unit: nm) is the horizontal axis in Example 2, the broken line indicates the spectral transmittance of the lens substrate, the dotted line indicates the spectral transmittance of the functional film, and the solid line indicates the spectral transmittance of the spectacle lens.

[0061] Figure 10 is a schematic diagram of a configuration module of a supply system of a spectacle lens as one embodiment of the present application.

[0062] Figure 11 is a flowchart of a supply system of a spectacle lens as one embodiment of the present application. DETAILED DESCRIPTION

[0063] Hereinafter, one embodiment of the present application will be described. In the present specification, "~" means a value equal to or greater than the prescribed value and equal to or less than the prescribed value. The following contents not described below can all cite the contents of Non-Patent Literature 1. If the received light is discussed (there is an object to which light is irradiated), the expression of radiant exposure is used, and the expression of radiant intensity is used except for this.

[0064] The "object side surface" of the spectacle lens means the surface located on the object side when the wearer wears the spectacle having the spectacle lens, and the "eyeball side surface" means the surface opposite thereto, i.e., the surface located on the eyeball side when the wearer wears the spectacle having the spectacle lens. This relationship is also applicable to the lens substrate that becomes the basis of the spectacle lens. That is, the lens substrate also has the object side surface and the eyeball side surface.

[0065] The "spectral transmittance" in the present specification means the spectral transmittance in the case where light is perpendicularly incident from the object side surface in the vicinity of the lens center of the spectacle lens. Note that in the case where the thickness of the peripheral portion of the spectacle lens is small, the spectral transmittance at the peripheral portion is managed so as to further suppress the risk of phototoxicity, as described later in one embodiment of the present application, in the same manner as in the case of the lens center.

[0066] The "transmittance" varies depending on the position of the spectacle, the incident angle to the spectacle, but for safety, the value in the case where light is perpendicularly incident to the eye point is managed as the highest transmittance.

[0067] The "eye point" is the position through which the line of sight passes when the wearer looks toward a prescribed position (for example, the front) while wearing the spectacle lens. In the case of a progressive power lens having a refractive power that gradually changes from a distance use to a near use, the prescribed distance use eye point of each lens can be used, and in the case of the following intermediate near lens, it can be the position through which the line of sight passes when looking toward an object located at an intermediate distance (1 m to 40 cm).

[0068] In a case where the transmittance becomes high or the illuminance after the transmission becomes high when the light passes through a position other than the eye point (the position of the sun, etc.), the transmittance at the position can be managed.

[0069] Also, the transmittance can be reduced in a region such as the lower part of the lens where the sunlight is not likely to enter the eye. Effects such as making it easier to read a book or the like from below, and improving the appearance by gradual change can be expected.

[0070] The spectacle lens of one aspect of the present application can be a single-vision lens or a progressive power lens. In the case of a progressive power lens, it can be an intermediate-near lens that deals with an object distance in an intermediate distance (1 m to 40 cm) or a near distance (40 cm to 10 cm), a near-near lens that deals with a near distance within the above near distance, or a far-near lens that deals with a far distance (for example, 2 m to infinity) and the above near distance.

[0071] <Setting principle of spectral transmittance of spectacle lens>

[0072] The supply system of the spectacle lens of one aspect of the present application can have the following configuration.

[0073] "A supply system of a spectacle lens, comprising a spectral transmittance setting section that sets a spectral transmittance of a spectacle lens based on a relationship selected from at least any one of the following relationships, according to a solar radiation intensity of a region where the spectacle lens is used and a spectral transmittance of an eye of a wearer of the spectacle lens.

[0074] (1) a relationship 1 of a wavelength and a radiation intensity of light that distinguishes whether or not it causes a morphological change of an ocular cell of a wearer of the spectacle lens, corresponding to a range 1 required for the morphological change of the ocular cell,

[0075] (2) a relationship 2 of a wavelength and a radiation intensity of light that distinguishes whether or not it changes a migration ability of an ocular cell of a wearer of the spectacle lens, corresponding to a range 2 required for the migration ability of the ocular cell,

[0076] (3) a relationship 3 of a wavelength and a radiation intensity of light that distinguishes whether or not it changes an infiltrative property of an ocular cell of a wearer of the spectacle lens, corresponding to a range 3 required for the infiltrative property of the ocular cell.

[0077] The relationship 1 of a wavelength and a radiation intensity of light that distinguishes whether or not it causes a morphological change of an ocular cell (in the following example, a lens epithelial cell) of a wearer of the spectacle lens can be a curve that distinguishes whether or not it causes a morphological change of the ocular cell in a relationship of a wavelength and a radiation intensity of light Figure 1 ( Figure 1 , Figure 2 of the ocular cell).

[0078] The relationship 2 between the wavelength of light and the irradiance that distinguishes whether the migration ability of the eye cells of the wearer of the spectacle lens is changed can be a curve that distinguishes whether the migration ability of the eye cells is changed (for example, decreased) in the relationship between the wavelength of light and the irradiance. Figure 2 .

[0079] The curve Figure 2 one (indicated as "Curve 1") is Figure 2 , Figure 1 , Figure 2 dotted line that distinguishes the rate of decrease in the migration speed that exceeds 75% (left side of the line) and is less than 75% (right side of the line). The other one (indicated as "Curve 2") of the curves Figure 2 is Figure 1 , Figure 2 a single-dot line that distinguishes the rate of decrease in the migration speed that exceeds 35% (left side of the line) and is less than 35% (right side of the line).

[0080] The relationship 3 between the wavelength of light and the irradiance that distinguishes whether the invasiveness of the eye cells of the wearer of the spectacle lens is changed can be a curve that distinguishes whether the invasiveness of the eye cells is changed (for example, increased) in the relationship between the wavelength of light and the irradiance. In view of the possibility that the occurrence of secondary cataract due to the invasiveness of the lens epithelial cells is increased, as with the above relationships 1 and 2, the change in the invasiveness is regulated as the relationship 3 in one aspect of the present application.

[0081] The relationships 1, 2, and 3 are not limited to the form of being embodied as a graph, and can be obtained as data.

[0082] The "solar irradiance of the region where the spectacle lens is used" can adopt the annual average level of the solar irradiance of the region where the spectacle lens is used. In addition to the annual average level of the solar irradiance, in Japan, the "total solar radiation (monthly average, annual average, etc.) provided by the Meteorological Agency" can also be adopted. The "solar irradiance" refers to the amount of radiant energy received from the sun per unit area per unit time (irradiance), and the unit is usually kilowatts per square meter (kW / m 2 ) or watts per square meter (W / m 2 ). In particular, the solar radiation from all directions in the sky is called total solar radiation, and the total solar radiation energy per unit area received on the horizontal plane is called total solar radiation. The solar radiation refers to the radiation in the wavelength range of 0.29 to 3 μιη that accounts for about 97% of all energy in the solar radiation with the sun as the source at a surface temperature of about 6000 K and at a high temperature.

[0083] The "spectral transmittance of the eye of the wearer of the spectacle lens" refers to the spectral transmittance of the entire eye including the intraocular lens in the case where the wearer uses the intraocular lens. The "spectral transmittance" in this specification refers to a spectrum (or a graph) in which the vertical axis is the transmittance (unit: %) and the horizontal axis is the wavelength (unit: nm). The spectral transmittance is also referred to as the spectral transmittance characteristic.

[0084] Note that the spectral transmittance of the eye in the case where the wearer does not use the intraocular lens refers to the spectral transmittance of the eye. The spectral transmittance of the eye can be measured for each wearer, or a typical spectral transmittance corresponding to the age, race, and the like can be prepared in advance, and the spectral transmittance can be selected according to the characteristics of the wearer. In the case of the intraocular lens wearer, a value estimated on the basis of the catalog value of the intraocular lens can be used.

[0085] Examples of setting the spectral transmittance of the spectacle lens on the basis of the solar radiation intensity of the region in which the spectacle lens is used and the spectral transmittance of the eye of the wearer of the spectacle lens according to the relationship selected from at least any one of the above relationships 1, 2, and 3 are shown below. For the convenience of explanation, in the following examples, the case where the secondary cataract is assumed to be an element that hinders health, and the eye cell is assumed to be the lens epithelial cell.

[0086] A database related to the following relationship disclosed in Non-Patent Literature 1 is used.

[0087] - Relationship 1 of the threshold value of the irradiance that causes a change in the morphology of the lens epithelial cell and the wavelength (ACTI1(λ))

[0088] - Relationship 2 of the threshold value of the irradiance that causes a change in the migration ability of the lens epithelial cell and the wavelength (ACTI2(λ), ACTI3(λ)).

[0089] ACTI2 refers to a slight decrease in the migration ability (a decrease rate of 30% or more and less than 70%), and ACTI3 refers to a significant decrease in the migration ability (a decrease rate of 70% or more).

[0090] Note that a database related to Relationship 3 of the threshold value of the irradiance that causes a change in the invasiveness of the lens epithelial cell and the wavelength can be used, but the description is omitted hereinafter.

[0091] Note that the change in the morphology of the lens epithelial cell can become a major cause of inducing the secondary cataract. Therefore, with respect to Relationship 1, it is preferable to select a relationship (curve Figure 1 on the right side) that does not cause a change in the morphology of the lens epithelial cell.

[0092] As the spectral transmittance for not more than each threshold value, the required spectral transmittance FTx of the spectacle lens in the case where the spectral radiant illuminance ATOM of the sun or the like is used is as follows. In the following formula, x corresponds to the numbers 1 to 3 in ACTI1 to 3.

[0093] FTx (λ) x ATOM (λ) x P (λ) ≤ ACTIx (λ)... (Formula 1)

[0094] P (λ) is a coefficient indicating the degree of attenuation of the radiant intensity (radiant illuminance) of light incident into the eye according to the physiological characteristics. P (λ) can also be a coefficient corresponding to the area of the pupil diameter (unit: mm 2 ). In this case, the pupil also changes according to the wavelength of the incident light, so the wavelength λ is set as a variable.

[0095] P (λ) can also adopt other known data. In the case where the physiological characteristics of each person are considered, a certain characteristic reference is specified, the coefficient under the condition is determined from the measurement data of the human body, the reference P (λ), and the characteristic measurement of each person is a relative value with respect to the reference, and the P (λ) of each person can be determined by multiplying the relative value by the reference P (λ).

[0096] Note that P (λ) can also be a function related to the pupil diameter and the spectral transmittance of the iris. This function can also be referred to as a "pupil diameter function" in this specification. Note that P (λ) can be a number including 0 to 1. The pupil diameter is generally changed due to the important reasons described in the following website (https: / / acuvuevision.jp / eyelife / vol18), on the other hand, it is also changed due to the spectral shape.

[0097] ATOM (λ) is the spectral irradiance (converted value) characteristic of the environment, which is the radiant intensity (converted value) at each wavelength. ACTI (λ) is the transmittance spectrum when the characteristics of the cells are changed due to phototoxicity, which corresponds to Figure 1 、 Figure 2 the solid line, the dotted line, and the single-dot chain line.

[0098] In the case where the equality holds in the above Formula 1, FTx (λ) is the maximum value. The case where the spectral transmittance becomes the maximum is preferable for the wearer of the spectacle lens because the outside world is bright, and on the other hand, the case where the inequality holds in the above Formula 1 is also to be allowed. It is meaningful for the margin as a necessary condition required for other filters, such as the important reasons that affect the phototoxicity to the eye of the wearer, the spectral radiant intensity, the irradiation time, and the like.

[0099] Therefore, an adjustment coefficient B (λ) can also be used for the above Formula 1, forming the following Formula 2.

[0100] FTx (λ) x ATOM (λ) x P (λ) = ACTIx (λ) x B (λ)... (Formula 2)

[0101] B (λ) is used when adjustment is required according to the above important reasons and / or the above necessary conditions. As a specific value, it can be determined to be between 0 and 1 according to the degree of the above important reasons and / or the above necessary conditions. B can be a value according to the wavelength, or can be a simple constant. For example, in the case of a person who has a tendency to have ptosis, light is blocked above the position of the narrow pupil diameter, so the risk is low, and there is a tendency to be difficult to see, so 0.7 is multiplied by the degree of ptosis.

[0102] Also, in the case where the above ACTI1 to 3 are not present in the database, one aspect of the present application can also be implemented. For example, in the case where the upper limit value of the spectral transmittance FTx (λ)'is present in the database, a reference irradiance ATOM' (λ) and a reference pupil diameter P' (λ) can be used instead of ATOM (λ). The reference irradiance ATOM' (λ) refers to the ratio of the reference solar irradiance of the region where the eyeglass lens is used, for example, AM1.5, to the region (for example, Tokyo). The reference pupil diameter P' (λ) refers to the ratio of the reference pupil diameter P0 (λ) of the region where the eyeglass lens is used, for example, AM1.5, to the region (for example, Tokyo). In this case, the following formula can be used.

[0103] FTx (λ) ≤ {FTx (λ)'x ATOM (λ)'x P (λ) '} ÷ {ATOM (λ) x P (λ)}... (Formula 3)

[0104] Formula 3 is transformed as follows.

[0105] FTx (λ) ≤ [FTx (λ)'÷ {ATOM (λ) / ATOM (λ) '}] ÷ {P (λ) / P (λ) '}... (Formula 4)

[0106] The first bracket on the right side of Formula 4 corresponds to ACTIx ÷ ATOM.

[0107] A reference to the data disclosed in Non-Patent Literature 1

[0108] - ACTI1 in which relatively severe phototoxicity occurs (here, the "phototoxicity" referred to means a condition in which abnormal changes in cell morphology occur in 20% or more of all cells) through a 24 to 30 hour continuous light irradiation experiment.

[0109] - Changes in cell migration ability were observed (a significant decrease in migration speed), but the extent was approximately 30-70% of the decrease in ACTI2.

[0110] - ATCTI3, which has strong phototoxicity relative to its migration ability, has a velocity reduction of less than 30%.

[0111] The database.

[0112] Using this database and by employing either Equation 1 or Equation 2 above, ACTI1 (the aforementioned curve) is obtained. Figure 1 ), ACTI2 (the above curve) Figure 2 ), ACTI3 (as shown in Figure 3 above), through which the spectral transmission characteristics of the spectacle lens relative to the ambient light (ATOM1(λ)) of the region where the spectacle lens is used are obtained. These are referred to as FT11(λ), ​​FT21(λ), ​​and FT31(λ).

[0113] Regarding ATOM1(λ), ​​to compare irradiance, the irradiance of each wavelength of AM1.5 sunlight incident on the eye and reaching the lens is converted to a half-width of 10 nm to become a point value. ACTx(λ) is the value when using light with a half-width of approximately 10 nm relative to its respective center wavelength.

[0114] To take into account the characteristics of ambient light in the area where the eyeglass lens is used, the following implementation method can be adopted. As a transmission characteristic of the eyeglass lens provided by one embodiment of the present invention, firstly, the characteristic with the lowest transmittance (also called the filtering characteristic) can be calculated by assuming the ambient light with the highest intensity. Then, if there is an intensity of ambient light, the desired filtering characteristic is obtained by multiplying it by the ratio r(λ) = ATOM1(λ) / ATOMy(λ) of the spectral irradiance 1 (ATOM1) of the reference environment to the spectral irradiance y (ATOMy) of the living environment in the area where the eyeglass lens is used. This ratio r(λ), when considering the irradiation time, becomes the aforementioned adjustment coefficient B1(λ).

[0115] FT31(λ) represents the filtering property with the lowest transmittance among FT11(λ), ​​FT21(λ), ​​and FT31(λ). Light passing through a spectacle lens with FT31(λ) filtering properties will not alter the migration ability of lens epithelial cells, making it the safest for the cells of the eye.

[0116] On the other hand, as a basic function of the eye, it becomes difficult to see objects and to recognize their colors. Seeing objects is called "object recognition," and recognizing their colors is called "color discrimination."

[0117] Also, when the intensity of the ambient light is weak, the light is excessively filtered, and the recognition of objects, color discrimination further becomes difficult.

[0118] On the contrary, it is also considered to multiply FT11(λ) by the above r(λ), and to enhance the filtering characteristics considering the light environment level. In this case, the safety to the cells is improved. However, in the case where the light environment level is low, the recognition, color discrimination becomes difficult to perform.

[0119] Therefore, it is also possible to determine the final filtering characteristics considering the irradiance of the ambient light of the eye and the time of exposure to the light. Note that it is not necessary to make the transmittance lower than FT31(λ), and from the viewpoint of recognition, it is not desirable to lower the transmittance, and therefore, FT31(λ) can also be used as the lower limit value of the transmittance.

[0120] FT21(λ) among FT11(λ), FT21(λ), FT31(λ) is a filtering characteristic for the purpose of preventing abnormality in the migration ability of the lens epithelial cells.

[0121] In the case where the filtering characteristics are lower than FT21(λ), the reduction of the migration speed, which is an index of the change in the migration ability, is suppressed to 30% or less. Also, even under light weaker than sunlight, it is suppressed to the same reduction rate or less. In reality, the time spent under the direct sunlight of the sun is not so long for many people, and therefore, it is considered that the influence on the migration ability is less, and when considering the cells of the lens, from the viewpoint of recognition, color discrimination, it is a characteristic that is realistically useful for many people.

[0122] FT11(λ) among FT11(λ), FT21(λ), FT31(λ) is a filtering characteristic for the purpose of preventing abnormality in the morphology of the lens epithelial cells. Among the three filtering characteristics, FT11(λ) is the filtering characteristic with the highest transmittance. Therefore, when FT11(λ) is adopted, the recognition of objects, color discrimination, which is the basic function of the eye, becomes easy to perform. On the other hand, if exposed to high-intensity ambient light, there is a possibility of causing an adverse effect on the cells of the eye. However, if it is the time when the ambient light is attenuated when used as a spectacle lens, even with the filtering characteristics of FT11(λ), there is a possibility that the influence on the migration ability is suppressed within a limited range.

[0123] On the contrary, it is also considered to multiply FT11(λ) by the above r(λ), and to enhance the filtering characteristics considering the light environment level. In this case, the safety to the cells is improved. However, in the case where the light environment is not suppressed to the assumed level, the recognition, color discrimination becomes difficult to perform.

[0124] Therefore, the final filter characteristic can be determined in consideration of the radiation intensity of the ambient light of the eye and the time of exposure to light. Note that in the case where there is no problem in the recognition of the object, color discrimination, etc., it is not necessary to make the transmittance higher than FT11(λ), and from the viewpoint of the effect on cells, it is not desirable to increase the transmittance, and therefore FT11(λ) can be the upper limit value of the transmittance.

[0125] Figure 3A is a graph of FT11(λ) (left, legend O), FT21(λ) (middle, legend Δ), and FT31(λ) (right, legend O) in the relationship between the transmittance (vertical axis: %) and the wavelength (horizontal axis: nm).

[0126] As the range of the transmittance of the filter that is practically effective, the value between FT31(λ) and FT11(λ) set as the boundary with the value of FT21(λ) as the reference can be considered.

[0127] More specifically, the boundary on the side of the low transmittance sets the transmittance of FT31(λ) as a whole to 2 times to set FT32(λ). In the life of the wearer of the eyeglass lens, under sunlight, the amount of irradiation is reduced by the constriction of the pupil, and therefore, it is considered that the irradiation intensity is assumed to be halved on average to affect the migration ability.

[0128] Further, the boundary on the side of the high transmittance compares the transmittance with each wavelength between FT11(λ) and FT22(λ) that sets the transmittance of FT21(λ) to 2 times, and sets the lower side as FT22'(λ).

[0129] Figure 3B is a graph of FT11(λ), FT21(λ), FT31(λ), FT32(λ), FT22'(λ), and FT21(λ) in the relationship between the transmittance (vertical axis: %) and the wavelength (horizontal axis: nm).

[0130] If the obtained effect (expression of phototoxicity) and the manufacturing cost of the filter are considered, a filter lens having a filter characteristic in which the transmittance between FT22'(λ) and FT32(λ) is provided is realistic, and is therefore preferable. Figure 3B In the filter lens, the transmittance between FT22'(λ) and FT32(λ) is realistic, and is therefore preferable.

[0131] Further, since the cells that are directly exposed to sunlight in the pupil become unable to migrate, the idea of averaging the amount of irradiation in FT11(λ) is not applicable in one embodiment of the present application.

[0132] As conditions for minimizing the influence on the cell while ensuring the optical filter characteristic of a good field of view for the wearer of the spectacle lens, first, the range of the transmittance of the practical and effective optical filter satisfying the above is listed. In addition to this, the following conditions are listed.

[0133] That is, the range of the spectral radiance irradiance IRRA(λ) of the lens surface is set to be the minimum between the wavelength integration of IRRA1(λ) and -IRRA2(λ) each of the visible light, and the wavelength integration of the spectral radiance irradiance IRRA(λ) and the standard spectral luminous efficiency V(λ) (photopic vision) is set to be the maximum. Regarding this, refer to JIS Z 8785:2019 "ISO 23539:2005 (CIE S 010:2004) Photometry - CIE Physical Photometric System".

[0134] Note that the following formula is obtained by considering AM1.5 sunlight as a reference.

[0135] IRRA1(λ) = ATOM1 x FT(λ)22'... (Formula 5)

[0136] IRRA2(λ) = ATOM1 x FT(λ)32... (Formula 6)

[0137] The integrated value of IRRA(λ) x V(λ) in the visible light region (390 nm to 720 nm) is the maximum, and the range of IRRA(λ) in which the spectacle lens adopts the integrated value of IRRA(λ) is sufficient.

[0138] <Specific Spectacle Lens Configuration for Implementing the Principle>

[0139] There is no limitation on the specific implementation means of the spectacle lens having the spectral transmittance exemplified in Figure 3A , Figure 3B

[0140] For example, the filter characteristic can be implemented by mixing a colorant in the lens base material that becomes the main body of the spectacle lens. A plurality of types of colorants can also be mixed in the lens base material. As the expression of a plurality of types of colorants, an expression such as a material A that reduces the transmittance of a prescribed wavelength range S and a material B that reduces the transmittance of another prescribed wavelength range T can be listed.

[0141] There is no limitation on the composition of the lens base material, and it can be a resin, and it can be glass. As the resin, it can be a thermosetting resin, it can be a photo-curable resin, or it can be another resin.

[0142] ​Further, the spectral transmittance of the spectacle lens can be achieved by the functional film provided on each of the object side and the eyeball side of the lens substrate. In the functional film, a primer film provided immediately above the lens substrate, a hard coat film provided thereon, an anti-reflection film, a stain-proof film, and the like can be included. The functional film can also be expressed as a material A that reduces the transmittance of a prescribed wavelength range S and a material B that reduces the transmittance of another prescribed wavelength range T.

[0143] Further, an optical material can be used in at least either of the lens substrate and the functional film. With the function of the optical material, the amount of light of the sunlight incident to the eye of the wearer of the spectacle lens can be set to be substantially constant regardless of the intensity of the solar radiation (sunlight).

[0144] Further, the lens substrate and the functional film can share the task of achieving the spectral transmittance of the spectacle lens. At this time, the lens substrate corresponds to the material A described above, and the functional film corresponds to the material B described above. This configuration is preferable for the following reasons. Details will be described below.

[0145] The range of the morphological change of the lens epithelial cells and the range of the migration ability are set. On this basis, the spectral transmittance required for the spectacle lens is set in correspondence with at least either of the use region of the spectacle lens, the use environment of the spectacle lens, and the condition of the eye of the wearer of the spectacle lens (for example, the presence or absence of an intraocular lens, and the color of the lens in the case of the presence of the lens), and preferably the condition of the eye and the use region and / or the use environment of the spectacle lens. Note that the use region of the spectacle lens and the use environment of the spectacle lens are also described later (specific examples and preferable examples of the supply system of the spectacle lens).

[0146] In order to set the spectral transmittance required for the spectacle lens, it is preferable to construct a structure that allows the spectral transmittance required for the spectacle lens to be easily customized. The spectral transmittance can be easily customized by the lens substrate or the functional film.

[0147] For example, while the functional film of the spectacle lens provided to each wearer is made common, the spectral transmittance of the spectacle lens required for each wearer can be customized by the lens substrate, and the lenses can be dip-dyed (usually dyed) by dipping the lens base (substrate) in a dye. Thus, if various lens substrates can be prepared, the film forming process of the functional film can be performed simultaneously with respect to the various lens substrates, and the work efficiency is good.

[0148] On the contrary, while generalizing the lens substrate of the spectacle lens to be provided to each wearer, the spectral transmittance of the spectacle lens required for each wearer can be customized using the functional film. More specifically, in the case where the functional film is a hard coat film, a prescribed dye can be mixed in a raw material liquid of the hard coat film, and the spectral transmittance of the spectacle lens can be achieved in cooperation with the lens substrate, or a lens to which the hard coat film is attached can be dipped in a dye, and the hard coat of the lens with the hard coat film can be tie-dyed (dyeable hard coat).

[0149] In the case where the functional film is an antireflection film, the composition of the raw material of the antireflection film and the multilayer structure (stacked structure of low reflection film and high reflection film) can be cooperated with the lens substrate to achieve the spectral transmittance of the spectacle lens.

[0150] Further, the functional film can be a film having a dynamic transmittance characteristic such as a light control film or an electronic light control film in addition to a film having a static transmittance characteristic such as an antireflection film or a band pass film. By series of both, the former can be recommended to a user who wears the spectacle lens during the day or outdoors, and the latter can be recommended to a user who uses the spectacle lens during the night or indoors. In the case of selection from a plurality of light control films, selection can be made considering the transmittance, color rendering, response time, and the like.

[0151] Generally, film formation of the functional film can be performed simultaneously with respect to a plurality of lens substrates in terms of work efficiency. On the other hand, in one embodiment of the present application, each lens substrate (or at least a part of the lens substrate on which the functional film is formed) is dyed with a dye prescribed in accordance with the spectral transmittance of the spectacle lens required for each wearer in terms of customization of the spectral transmittance of the spectacle lens required for each wearer. This is a different work content from the film formation of the functional film at present.

[0152] Customization of the spectral transmittance using the above-described dyeing has the following advantages.

[0153] First, when the range of the morphological change of the lens epithelial cells and the range of the migration ability of the lens epithelial cells are set, as shown in Figure 1 and Figure 2 It is preferable to have an optical filter characteristic (FT31(λ)) that minimally allows no morphological change of the lens epithelial cells. Therefore, the light of the wavelength that should be shielded in common to the spectacle lens provided by one embodiment of the present application is shielded using a hard coat film, an antireflection film, or the like.

[0154] On this basis, each lens substrate (or at least a part of the lens substrate on which the functional film is formed) is dyed to satisfy the optical filter characteristic corresponding to the range of the optical filter characteristic (between FT31(λ) and FT11(λ)) that achieves the decrease in the migration ability of the lens epithelial cells while making the spectral transmittance sufficiently high.

[0155] For example, each lens substrate (or at least a part of the lens substrate on which the functional film is formed) can be imparted with a property that the spectral transmittance is sufficiently high at a wavelength at which a maximum value is taken in the transmission spectrum of FT21(λ) that is achieved Figure 3A On the contrary, it is also possible to perform dyeing to have at least one such absorption spectrum that avoids the wavelength. The maximum value.

[0156] As other examples, it is possible to satisfy the light filtering property that achieves the range (range 3) of the invasiveness of the lens epithelial cells, by dyeing the functional film or the lens substrate and / or the functional film, while satisfying the light filtering property that achieves the range (range 1, 2) of the morphological change and the migration ability of the lens epithelial cells, by the lens substrate.

[0157] For example, the morphological change is generated only in the case of high-intensity light. Similarly, a large change in the migration ability is generated only in the case of high-intensity light irradiation. On the other hand, a change in the invasiveness and a small change in the migration ability are generated in the case of non-high-intensity light. In view of such a situation, for the morphological change and the large change in the migration ability that can be achieved by the film formation of the functional film in order to avoid the necessary minimum risk, and for the change in the invasiveness and the small change in the migration ability, it is possible to achieve by the dyeing process that is small in lot size and excellent in flexibility.

[0158] If the above-described dyeing is adopted, it is also possible to insert the dyeing process to each lens substrate (or at least a part of the lens substrate on which the functional film is formed) in the gap of the process of mass-producing many spectacle lenses. As a result, it is possible to customize the spectral transmittance at low cost, and also improve the work efficiency.

[0159] It is also possible to use a light-adjusting material instead of the dyeing. For example, it is possible to set in a manner that has at least one such absorption spectrum that avoids the wavelength at which the maximum value is taken in the transmission spectrum.

[0160] The spectral transmittance of the dyeing material, the functional film is a minimum value at the wavelength at which the spectral transmittance of the spectacle lens takes a maximum value, or the shape of the spectral transmittance curve is convex downward. Thus, under the condition that the shielding effect due to the dyeing material, the functional film is sufficiently exerted, the shielding effect at the aforementioned wavelength is further enhanced, and the maximum value is eliminated.

[0161] For example, in the case where the dyeing material of the lens substrate satisfies the aforementioned condition, the shielding effect is enhanced in the upper and lower parts of the lens where the lens thickness increases, corresponding to the lengthening of the light passing length, and is more significant particularly at the aforementioned wavelength. Thus, it is possible to effectively prevent the risk of sunlight from the upper part and the reflection from the ground, while maintaining the maximum value in the central part of the lens, and ensuring the lightness and the chroma.

[0162] Also, the wavelength band that is convex downward is different from the wavelength band that is convex upward, and thus, the configuration having an arbitrary spectral transmittance distribution can be easily formed. In particular, the risk of a lens that unexpectedly gives a wearer a transmittance exceeding a threshold value due to an error in adjusting the transmittance during manufacturing can be reduced.

[0163]

[0164] Up to this point, the principle of setting the spectral transmittance of a spectacle lens and a specific means for realizing the principle have been described. Hereinafter, one specific example of these contents will be listed. The present application is not limited to the following one specific example.

[0165] First, a database regarding the above-described ACTI1 to 3 is prepared. It is assumed that a wearer who uses ACTI2. In the following example, the above-described Equation 3 and Equation 4 are used.

[0166] As Example 1, an environment in which the intensity of radiation is 20% stronger than the intensity of radiation of sunlight serving as a reference is assumed to be the environment of a region in which a wearer J uses a spectacle lens.

[0167] As Example 2, the same environment as Example 1, on the other hand, it is assumed that a wearer K has implanted a yellow transparent intraocular lens.

[0168] Figure 4 In Example 1, a graph in which the horizontal axis (unit: nm) is the wavelength and the vertical axis is the "relative value of user-specific data with respect to the reference value", is a graph in which the relative illuminance with respect to the reference solar irradiance under the user's environment is indicated by a double-dot chain line as the specific data, and the relative transmittance of the spectral transmittance of the intraocular lens implanted eye with respect to the standard eye for the wearer J is indicated by a single-dot chain line.

[0169] Figure 5 In Example 1, a graph in which the vertical axis is the spectral transmittance (unit: %) and the horizontal axis is the wavelength (unit: nm), the dotted line indicates the upper limit value of the spectral transmittance suitable for the wearer J in the case of the reference condition (AM1.5), the dashed line indicates the upper limit value of the spectral transmittance suitable for the wearer J within the region of use of the spectacle lens, and the solid line indicates the spectral transmittance of the spectacle lens.

[0170] Figure 6 In Example 1, a graph in which the vertical axis is the spectral transmittance (unit: %) and the horizontal axis is the wavelength (unit: nm), the dashed line indicates the spectral transmittance of the lens substrate, the dotted line indicates the spectral transmittance of the functional film, and the solid line indicates the spectral transmittance of the spectacle lens.

[0171] Figure 7 ​is a graph in which the horizontal axis is wavelength (unit: nm) and the vertical axis is "relative value of user individual data to reference value" in Example 2, and is a graph in which the double-dot chain line indicates relative luminance to reference solar irradiance in the user environment as individual data, and the single-dot chain line indicates relative transmittance of the in-eye lens implanted eye to the standard eye for the wearer K as relative transmittance of the spectral transmittance.

[0172] Figure 8 is a graph in which the vertical axis is spectral transmittance (unit: %) and the horizontal axis is wavelength (unit: nm) in Example 2, and the dotted line indicates an upper limit value of the spectral transmittance suitable for the wearer K in the reference condition (AM1.5), the dashed line indicates an upper limit value of the spectral transmittance suitable for the wearer K in the use region of the spectacle lens, and the solid line indicates the spectral transmittance of the spectacle lens.

[0173] Figure 9 is a graph in which the vertical axis is spectral transmittance (unit: %) and the horizontal axis is wavelength (unit: nm) in Example 2, and the dashed line indicates the spectral transmittance of the lens substrate, the dotted line indicates the spectral transmittance of the functional film, and the solid line indicates the spectral transmittance of the spectacle lens.

[0174] In the present embodiment, a coloring agent is contained in the lens substrate, and the functional film is also dyed.

[0175] Hereinafter, the process from the above-described relational databases 1 and 2 to the spectacle lens or the eyeglasses will be described in detail. A system that realizes the above-described description is as follows.

[0176] <Supply system of spectacle lens>

[0177] Figure 10 is a schematic diagram of a configuration module of the supply system of the spectacle lens as one embodiment of the present application.

[0178] Figure 11 is a flowchart of the supply system of the spectacle lens as one embodiment of the present application.

[0179] The supply system of the spectacle lens of one aspect of the present application has the following configuration.

[0180] "A supply system of a spectacle lens, comprising a display unit that displays a color of a spectacle lens corresponding to each of a plurality of spectral transmittances set based on a relationship selected from at least any one of the following relationships, according to a solar radiation intensity of a region in which the spectacle lens is used and a spectral transmittance of an eye of a wearer of the spectacle lens.

[0181] (1) Relationship 1 between wavelength and irradiation intensity of light that distinguishes whether or not the light causes a change in morphology of ocular cells of a wearer of the spectacle lens, corresponding to a range 1 required for the change in morphology of the ocular cells,

[0182] (2) Relationship 2 between wavelength and irradiation intensity of light that distinguishes whether or not the light causes a change in migration ability of ocular cells of a wearer of the spectacle lens, corresponding to a range 2 required for the change in migration ability of the ocular cells,

[0183] (3) Relationship 3 between wavelength and irradiation intensity of light that distinguishes whether or not the light causes a change in invasiveness of ocular cells of a wearer of the spectacle lens, corresponding to a range 3 required for the change in invasiveness of the ocular cells.

[0184] According to one embodiment of the present application, it is possible to prevent a situation in which a purchaser is dissatisfied with the color of the spectacle lens when the purchaser sees the spectacle lens at an optical shop, and to improve customer satisfaction. In addition to this configuration, it is preferable that the spectacle lens supply system have the input unit described above. The spectacle lens supply system of this configuration does not need to have the spectral transmittance setting unit, and data on the color of the spectacle lens corresponding to each of the plurality of spectral transmittances of the spectacle lens set by the spectral transmittance setting unit can be provided by the spectacle lens supply system.

[0185] (Database on relationships 1 and 2)

[0186] The database in one embodiment of the present application contains the relationships between the change in morphology and migration ability of ocular cells and the wavelength of light described in Non-Patent Literature 1 (i.e., relationships 1 and 2, for example: Figure 1 (transmission spectrum), and Figure 2 (spectral transmittance)), so-called big data. Of course, it is also possible to prepare big data on relationship 3.

[0187] (Specific example and preferable example of spectacle lens supply system)

[0188] Hereinafter, a specific example and preferable example of the spectacle lens supply system in one embodiment of the present application will be described. The spectacle lens supply system in one embodiment of the present application has the following configuration as an example.

[0189] The optical shop computer of the optical shop side can also have the following configuration.

[0190] - Input unit

[0191] - Display unit

[0192] The control computer of the control side can also have the following configuration.

[0193] - a database recording section relating to the relationship between the morphological change of the ocular cells and the change in the migration ability and the change in the invasiveness and the wavelength of light

[0194] - a spectral transmittance setting section

[0195] - a spectral transmittance setting section

[0196] The control party can also be the manufacturer of the spectacle lens. This will be illustrated later.

[0197] The input section has a function of inputting the characteristics of the purchaser of the spectacle lens (future wearer of the spectacle lens). The characteristics include the prescribed region of use of the spectacle lens (in general, the residence of the purchaser). In addition, the use season, the purpose of use (use in the mountains in the snow, use in the mountains in the summer, use on the street, etc.), and the use time (the length of the time of use outdoors after sunrise, before sunset, the time period of the time of outdoor work during the day) are listed. In the present specification, as the expression including at least any one of the prescribed region of use of the spectacle lens, the use season, the purpose of use, and the use time, "use environment" (may also be referred to as "living environment") is used. That is, in the characteristics, the region of use of the spectacle lens and the use environment of the spectacle lens can be included. Furthermore, if the color discrimination becomes important due to the presence or absence of color vision abnormalities, occupation, hobby, preference, etc., such information can also be included in the characteristics.

[0198] Furthermore, as information related to the characteristics based on specific examples, the following is listed. The risk of phototoxicity of a patient who has undergone an ophthalmic surgery increases. Therefore, the date of the surgery can also be input as information. Furthermore, based on the proximity of the date of the surgery from the date of setting the spectral transmittance according to one embodiment of the present application, a safety margin with respect to the transmittance can be ensured.

[0199] Note that the purpose of use can also be automatically determined in correspondence with the product number of the lens. For example, in the case of intermediate near lenses, it is assumed that the use outdoors during the day is less.

[0200] The "characteristics" can include at least any one of the various information listed in this paragraph, and the various information can be appropriately combined according to the situation. Preferably, at least the use environment is included in the characteristics.

[0201] In summary, preferably, the aforementioned spectral transmittance setting section sets the spectral transmittance of the spectacle lens in accordance with the characteristics of the wearer of the spectacle lens in addition to the solar radiation intensity of the region in which the spectacle lens is used and the spectral transmittance of the eye of the wearer of the spectacle lens.

[0202] Input using the input section ( Figure 11 The content of S1 is sent to the control computer of the controller. At the controller, based on this content, while referring to the database recording unit (S2), the spectral transmittance is set using the spectral transmittance setting unit (S3). Here, the term "set" is used for good reason.

[0203] Based on the information input using the input unit, and while referring to the database record unit, the most suitable spectral transmittance for the buyer is determined, which is also included in the "Settings" section of this manual. However, in this case, the color of the eyeglass lens with this determined spectral transmittance is naturally one. Thus, when the eyeglass lens manufactured (dyed) by the factory is delivered to an optical shop, the buyer may be dissatisfied with the color of the eyeglass lens when they see it at the optical shop.

[0204] Therefore, in the spectral transmittance setting unit of the control computer, it is preferable to set multiple spectral transmittances of different colors of eyeglass lenses as selection options within the range 1 of morphological changes in eye cells and the range 2 of migration ability changes required by the buyer. For the sake of including this situation, it is referred to as "setting" of spectral transmittance in this specification. In the embodiment described in this paragraph, in an optical shop, multiple eyeglass lenses of different colors are displayed on a display unit (S4, display process). The buyer selects one of these eyeglass lenses (S5). The input of this selection result and its transmission to the factory via network X can be performed through the input unit described above.

[0205] The task of selecting the material A (e.g., lens substrate) that reduces the transmittance of a specified wavelength range S and the material B (e.g., a functional film other than the lens substrate) that reduces the transmittance of another specified wavelength range T can be shared by the content determination unit of the control computer (S6).

[0206] As described in the preceding paragraph, while effectively utilizing the function of the content determination unit, even when multiple spectral transmittance settings are configured in the spectral transmittance setting unit of the control computer, it is preferable to display eyeglass lenses of different colors corresponding to each spectral transmittance on the display unit of the optical shop computer (S4). Furthermore, it is preferable that the purchaser pre-selects a preferred color of eyeglass lens and inputs their selection using the aforementioned input unit of the optical shop computer (S5).

[0207] Note that a simulation image of the visual effect on the appearance from a third person, the visual field through the lens from the wearer, and the like can be displayed on the display section. A rendering function for displaying the visual effect on the appearance from an arbitrary angle and an angle changing interface can also be provided. A visual field that takes into account the change in color vision when the intraocular lens is worn and the color vision abnormality of the wearer can also be displayed. By adopting this configuration, a third person other than the color vision abnormality (for example, a person with normal color vision who serves as an assistant to the color vision abnormality) can grasp the change in color vision when participating in the purchase of the eyeglass lens of one embodiment of the present application, thereby serving as an assistant.

[0208] A tablet terminal in which the input section is integrated with the display section described later can also be used as the eyeglass shop computer.

[0209] The database recording section can or can not be included in the configuration of the mold management system. For example, the database recording section can be provided in the control computer, in the factory computer, or in a server on a network.

[0210] The control computer section has a function as a computer device that performs information processing instructed by a prescribed program, and is specifically configured by a combination of a CPU (Central Processing Unit), an HDD (Hard Disk Drive), a ROM (Read Only Memory), a RAM (Random Access Memory), an external interface (I / F), and the like.

[0211] The eyeglass lens is manufactured based on the content selected by the purchaser and the content shared by the purchaser (S7). The specific operation content of the manufacture of the eyeglass lens can be performed using a publicly known operation. As a method for realizing the relationship of the selection described above, as described in the above-described "Principle of Setting Spectral Transmittance of Eyeglass Lens" and "Specific Configuration of Eyeglass Lens for Realizing the Principle", the material of the lens base material can contain a coloring agent, and the lens base material and / or the functional film can be dyed. The eyeglass lens thus manufactured is delivered to the eyeglass shop, and is delivered to the purchaser at the eyeglass shop (S8).

[0212] <Program for Eyeglass Lens Supply System>

[0213] The technical idea of the eyeglass lens supply system of one embodiment of the present application can be applied to a program for an eyeglass lens supply system. The specific configurations of the respective inventions are described below.

[0214] A program for a supply system of an eyeglass lens, which causes a computer to function as a display section that displays colors of the eyeglass lens corresponding to a plurality of spectral transmittances respectively set in accordance with a solar radiation intensity of a region in which the eyeglass lens is used and a spectral transmittance of an eye of a wearer of the eyeglass lens, based on a relationship selected from at least any one of the following relationships,

[0215] (1) a relationship 1 of the wavelength and the irradiance of light that distinguishes whether or not the light causes a morphological change of ocular cells of the wearer of the eyeglass lens, corresponding to a range 1 required for the morphological change of the ocular cells,

[0216] (2) a relationship 2 of the wavelength and the irradiance of light that distinguishes whether or not the light causes a change in a migration ability of ocular cells of the wearer of the eyeglass lens, corresponding to a range 2 required for the migration ability of the ocular cells,

[0217] (3) a relationship 3 of the wavelength and the irradiance of light that distinguishes whether or not the light causes a change in an invasiveness of ocular cells of the wearer of the eyeglass lens, corresponding to a range 3 required for the invasiveness of the ocular cells.

[0218] <Other>

[0219] The technical scope of the present application is not limited to the above-described embodiments, and includes various modifications and improvements within a range in which a specific effect obtained by the configuration elements of the present application and combinations thereof can be deduced.

[0220] The aforementioned ocular cells can be lens epithelial cells, retinal pigment epithelial cells, corneal endothelial cells, corneal epithelial stem cells, or subconjunctival fibroblasts. Among them, the lens epithelial cells have a high light toxicity sensitivity, and as a result, the effects of the present application can be particularly remarkably obtained.

[0221] The present application is applicable not only to eyeglass lenses and eyeglasses, but also to contact lenses and goggles. In the present specification, as described above, in relation to the "spectral transmittance of the eye of the wearer of the eyeglass lens", a case in which an intraocular lens is not worn is also assumed. The present application can also be applicable to a case in which an intraocular lens is required for a person who does not wear an intraocular lens. That is, the present application is also applicable to an intraocular lens.

Claims

1. A system for supplying eyeglass lenses, characterized in that, The display section displays a color of the eyeglass lens corresponding to each of a plurality of spectral transmittances set in accordance with a solar radiation intensity of a region in which the eyeglass lens is used and a spectral transmittance of an eye of a wearer of the eyeglass lens based on a relationship selected from at least one of the following relationships, (1) a relationship 1 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a morphological change of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 1 required for the morphological change of the ocular cell, (2) a relationship 2 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a change in a migration ability of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 2 required for the migration ability of the ocular cell, (3) a relationship 3 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a change in an infiltrative property of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 3 required for the infiltrative property of the ocular cell.

2. The eyeglass lens supply system according to claim 1, characterized in that the input section has a function of inputting a characteristic of the wearer of the eyeglass lens, and the wearer of the eyeglass lens preselects an eyeglass lens of a favorite color, and the selection is input.

3. The eyeglass lens supply system according to claim 1, characterized in that the plurality of spectral transmittances of the eyeglass lens are set in accordance with a characteristic of the wearer of the eyeglass lens in addition to the solar radiation intensity of the region in which the eyeglass lens is used and the spectral transmittance of the eye of the wearer of the eyeglass lens.

4. The eyeglass lens supply system according to any one of claims 1 to 3, characterized in that the plurality of spectral transmittances are set based on the relationships 1 to 3.

5. An eyeglass lens supply method, characterized by having a display step of displaying a color of an eyeglass lens corresponding to each of a plurality of spectral transmittances set in accordance with a solar radiation intensity of a region in which the eyeglass lens is used and a spectral transmittance of an eye of a wearer of the eyeglass lens based on a relationship selected from at least one of the following relationships, (1) a relationship 1 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a morphological change of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 1 required for the morphological change of the ocular cell, (2) a relationship 2 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a change in a migration ability of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 2 required for the migration ability of the ocular cell, (3) a relationship 3 between a wavelength and an irradiation intensity of light that distinguishes whether or not the light causes a change in an infiltrative property of an ocular cell of the wearer of the eyeglass lens, corresponding to a range 3 required for the infiltrative property of the ocular cell.

6. A program for an eyeglass lens supply system, characterized by causing a computer to function as a display section that displays a color of an eyeglass lens corresponding to each of a plurality of spectral transmittances set in accordance with a solar radiation intensity of a region in which the eyeglass lens is used and a spectral transmittance of an eye of a wearer of the eyeglass lens based on a relationship selected from at least one of the following relationships, (1) Relationship 1 between wavelength and irradiance of light that distinguishes whether or not it causes a change in the morphology of ocular cells, corresponding to Range 1 required for a change in the morphology of ocular cells of a wearer of eyeglasses lenses, (2) Relationship 2 between wavelength and irradiance of light that distinguishes whether or not it causes a change in the migration ability of ocular cells, corresponding to Range 2 required for the migration ability of ocular cells of a wearer of eyeglasses lenses, (3) Relationship 3 between wavelength and irradiance of light that distinguishes whether or not it causes a change in the invasiveness of ocular cells, corresponding to Range 3 required for the invasiveness of ocular cells of a wearer of eyeglasses lenses.

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