Ophthalmic lens for slowing myopia progression

Abstract

The present invention relates to an ophthalmic lens comprising one or more annular focusing structures or one or more annular diffusing structures, each annular focusing structure or annular diffusing structure having a respective width and at least one additional feature of the following set of features: (i) a central clear region, the central clear area has a central clear area width in the range of 6 mm to 9.4 mm, and the width is equal to or less than 0.7 mm; (ii) the width of less than 0.5 mm; (iii) for the width in the range of 0.6 mm to 0.7 mm, a surface-based fill factor greater than 17% and equal to or less than 70%; (iv) a surface-based fill factor greater than 15% and equal to or less than 60% for the width in the range of 0.5 mm to 0.6 mm; (v) for said width less than 0.5 mm, a surface-based fill factor greater than 6% and equal to or less than 50%.

Description

Technical Field

[0001] The present invention relates to an eyeglass lens for slowing down the progression of myopia. Background Art

[0002] The increasing prevalence of myopia in Southeast Asian countries may not only be a potential cost factor for the healthcare system, but also imposes significant costs on the economy and individuals due to the expenditure on corrective devices. In principle, existing myopia can be corrected by the use of spectacles, contact lenses, intraocular lenses, or also by refractive interventions. However, studies have shown that this corrects the refractive error itself, but in many cases, especially in children, a rapid progression of the spherical component of the refractive error has been reported. It is mainly known from clinical data that refractive errors of -6 diopters or more lead to chorioretinal changes at the level of the retina. Research activities to slow the progression of myopia have examined different modes of action of interventions, and clinical trials have shown varying effectiveness. In the case of spectacle lenses with continuously increasing effectiveness in the peripheral direction along all meridians (e.g., spectacle lenses offered by Carl Zeiss Vision Group under the trade name MyoVision), an efficiency of 30% in slowing down axial length growth can be demonstrated in a defined group of test subjects (Sankaridurg, P., Donovan, L., Varnas, S., Ho, A., Chen, X., Martinez, A., Fisher, S., Lin, Z., Smith, E.L., 3rd, Ge, J., and Holden, B. Spectacle lenses designed to reduce progression of myopia: 12-month results. Optom Vis Sci, 87(9), 631-641). Using other optical interventions together with spectacle lenses can demonstrate much higher effectiveness of up to 70% in clinical studies (see, for example, Bao J, Yang A, Huang Y, Li X, Pan Y, Ding C, Lim EW, Zheng J, Spiegel DP, Drobe B, Lu F, Chen H. One-year myopia control efficacy of spectacle lenses with aspherical lenslets. Br J Ophthalmol. 2021: 318367).

[0003] In particular, in the case of spectacles-based interventions, not only good effectiveness is important, but also aesthetics and good wearability. After all, it has been shown that wearing spectacles for extended periods during the day makes it more effective to slow down the progression of myopia.

[0004] In the case of ophthalmic lens interventions, the following mechanisms of action can in principle be considered

[0005] 1. Insufficient regulation or delayed regulation

[0006] 2. Peripheral blur

[0007] 3. Simultaneous and alternating blur

[0008] Thus, the last two mechanisms of action are used synergistically to a certain extent, but the considerations according to the present invention are mainly focused on point 3 below.

[0009] EP 3561578 A1 discloses in Figures 14a and 14b and describes in paragraph

[0102] a universal ophthalmic lens having a clear zone and cylindrical concentric rings. This document does not disclose any dimensions of the cylindrical concentric rings. Paragraph

[0161] discloses a preferred embodiment, characterized in that, in each circular zone having a radius ranging from 2 mm to 4 mm and a geometric center located at a distance greater than or equal to the radius + 5 mm from the optical center of the ophthalmic lens, the ratio between the sum of the areas of the cylindrical concentric rings located within the circular zone and the area of ​​the circular zone lies in the range of 20% to 70%. According to EP 3561578 A1, the ratio is an identification number.

[0010] WO 2019166659 A1 in Figure 11 a and Figure 11 14a and 14b of EP 3561578 A1 and described in paragraph

[0102] , is shown in FIG. 14b and described on page 20, lines 10 to 12. According to WO 2019166659 A1, page 28, lines 13 to 18, it is described that the identification number, defined in the same manner as indicated above with respect to EP 3561578 A1, can be in the range of 20% to 70%, or 30% to 60%, or 40% to 50%.

[0011] Neither EP 3561578 A1 nor WO 2019166659 A1 discloses the specific dimensions of the cylindrical concentric rings as described above.

[0012] Furthermore, it has been found that several wearers of the ophthalmic lenses with cylindrical concentric rings described above with reference to EP 3561578 A1 and WO 2019166659 A1, respectively, complain of discomfort.

[0013] Apart from Figure 11 a and Figure 11 In addition to the variant of the concentric ring spectacle lens shown in (b), WO2019166659 A1 discloses a spectacle lens having multiple concentric rings with annularly arranged, continuously connected lenslets. According to page 17, line 25, to page 19, line 8, the lenslets have a diameter of at least 0.8 mm. The identification number defined on page 19 of the document (i.e., the ratio of the sum of the areas of the cylindrical concentric rings within the circular zone to the area of ​​the circular zone) is targeted to be within the range of 20% to 70%, or 30% to 60%, or 40% to 50%.

[0014] The present invention is based on CN111103701 B Figure 3 A spectacle lens having a central optical zone is disclosed. The central optical zone is a circular region within a specified radius in the range of 5 mm to 10 mm. Outside the central optical zone, cylindrical microstructures are arranged in an annular pattern. The radial width of the cylindrical microstructures is specified to be in the range of 0.5 mm to 2 mm. The spacing between different annular cylindrical microstructures is in the range of 0.5 mm to 3 mm.

[0015] Some wearers of spectacle lenses with large lens diameters for small lenses have reported optical discomfort. Utility Model Content

[0016] The object of the present invention is therefore to propose an ophthalmic lens of the above-mentioned type which provides greater comfort to the wearer.

[0017] This problem is solved by the ophthalmic lens according to the invention.

[0018] The ophthalmic lens according to the present invention comprises: one or more annular focusing structures or one or more annular diffusing structures, each annular focusing structure or annular diffusing structure having a corresponding width; and at least one additional feature from the following group of features:

[0019] (i) a central clear area having a central clear area width in the range of 6 mm to 9.4 mm, and said width being equal to or less than 0.7 mm;

[0020] (ii) the width is less than 0.5 mm;

[0021] (iii) a surface-based fill factor, the surface-based fill factor being defined as the ratio of the surface areas of the innermost annular focusing structure of the one or more annular focusing structures or the innermost annular diffusing structure of the one or more annular diffusing structures to the surface area of ​​the innermost one or more annular focusing structures or the innermost one or more annular diffusing structures and the area of ​​a peripheral clear zone, wherein for the width of the one or more annular structures or the one or more annular diffusing structures in the range of 0.6 mm to 0.7 mm, the surface-based fill factor is greater than 17% and equal to or less than 70%;

[0022] (iv) a surface-based fill factor, the surface-based fill factor being defined as the ratio of the surface area of ​​the innermost annular focusing structure of the one or more annular focusing structures or the innermost annular diffusing structure of the one or more annular diffusing structures to the surface area of ​​the innermost one or more annular focusing structures or the innermost one or more annular diffusing structures and the area of ​​a peripheral clear zone, wherein for the width of the one or more annular structures or the one or more annular diffusing structures in the range of 0.5 mm to 0.6 mm, the surface-based fill factor is greater than 15% and equal to or less than 60%;

[0023] (v) a surface-based filling factor, which is defined as the ratio of the surface areas of the innermost annular focusing structure of the one or more annular focusing structures or the innermost annular diffusing structure of the one or more annular diffusing structures to the surface area of ​​the innermost one or more annular focusing structures or the innermost one or more annular diffusing structures and the area of ​​the peripheral clear zone, and for the width of the one or more annular structures or the one or more annular diffusing structures being less than 0.5 mm, the surface-based filling factor is greater than 6% and equal to or less than 50%.

[0024] In the context of the present invention, a spectacle lens is an ophthalmic lens that is worn in front of the eye but does not come into contact with the eye (DIN ISO 13666:2019, section 3.5.2), wherein an ophthalmic lens is a lens intended for measuring, correcting and / or protecting the eye, or for changing its appearance (DIN ISO 13666:2019, section 3.5.1).

[0025] A structure shall be considered circular if it surrounds an unstructured area and there exists a path within the structure that extends from a starting point within the structure, around the unstructured area and back to the starting point again.

[0026] In the context of this specification, the term "annular focusing structure" applies to structures providing an annular focal line and structures comprising a plurality of small lenses which are adjacent to each other such that the small lenses form a ring of successively connected small lenses and provide a plurality of (e.g. equidistantly arranged, preferably mainly linear or point-shaped) focal points along the annular line.

[0027] The structure for providing an annular focal line is shown in, for example, FIG. 14 a and FIG. 14 b of EP 3561578 A1 and described in paragraph

[102] and in WO 2019166659 A1. Figure 11 a and Figure 11 b and described in lines 10 to 12 on page 20. Other variations of such structures providing annular focal lines are disclosed in CN 111103701 B Figure 1 、US2019 / 0227342A1 Figure 5 A and Figure 5 In B.

[0028] In front view, i.e. if viewed perpendicularly to the front surface of the spectacle lens, the ring need not be circular, but may also be non-circular, in particular an elliptical or other curved ring (such as that of CN 213659117U). Figure 1 shown).

[0029] As described below, the lenslet need not be a circular lenslet when viewed from the front. For example, such an annular focusing structure may include, for example, the lenslet as shown in WO 2019166659 A1, page 17, line 25 to page 19, line 8. Figure 1 Structures similar to those described.

[0030] In the context of the present invention, the term "small lens" refers to a small convex structure of a lens that is approximately spherical, ellipsoidal, sinusoidal or similarly shaped, which is arranged on the surface of the lens and has a lateral dimension that is several orders of magnitude smaller than the dimension of the lens itself, or refers to a small area with a refractive index distribution arranged in the body of the lens, wherein the refractive index distribution has a lateral dimension that is at least several orders of magnitude smaller than the dimension of the lens itself.

[0031] In the case of a small convex structure, the small lenses are considered to be adjacent to each other if there is a path between the centers of the two small lenses that does not pass through an area having only the shape of the surface on which the small lenses are formed. In the case of a refractive index distribution, the small lenses are considered to be adjacent to each other if there is a path between the centers of the two small lenses that does not pass through an area having the refractive index of the spectacle lens body.

[0032] In optics, a diffusing structure (also called a light diffuser or optical diffuser) constitutes an optical element made of any material that diffuses or scatters light in some way, thereby transmitting soft light. Scattered light can be easily obtained by reflecting light from a white surface, while more compact diffusing structures can use translucent materials, including frosted glass, Teflon, holographic materials, opal glass, and gray glass. Scattering can be achieved by scattering centers, which can be point-shaped, examples of which are disclosed in WO 2010 / 075319 A2, WO 2018 / 026697 A1, WO 2019 / 152438 A1, and WO 2020 / 014613 A1, respectively.

[0033] The term "width of the annular focusing structure" denotes the extension of the annular focusing structure perpendicular to its circumferential direction measured from the inner and outer starting points of the annular focusing structure. Similarly, the "width of the annular diffusing structure" denotes the extension of the annular diffusing structure perpendicular to its circumferential direction measured from the inner and outer starting points of the annular diffusing structure. The term "starting point" denotes the first measurable position of the annular focusing structure or the annular diffusing structure on the surface of the ophthalmic lens. In other words, the term "starting point" denotes the position on the surface of the ophthalmic lens at which, in the case of a focusing structure, the shape of the surface begins to deviate from the shape of the base lens surface; or, in the case of a diffusing structure, at which the contrast reduction characteristics of the lens change relative to the base lens. An exemplary embodiment for determining the starting point is Figure 2 、 Figure 4 and Figure 6 Further, the term "inner starting point" designates the starting point of a structure toward the center of the lens, and the term "outer starting point" designates the starting point of a structure away from the lens toward the periphery.

[0034] In the context of this specification, the term "clear zone" applies to the unstructured area of ​​a spectacle lens. The clear zone is designed so that, when the spectacle lens is positioned according to its designated wearing position, it provides neither myopic defocus nor diffuse reflections in foveal vision when the wearer looks through it. Furthermore, the clear zone allows a focused image to be achieved on the fovea with the aid of accommodation, if desired.

[0035] The central clear area is a structure-free area that is adjacent to and surrounded by the annular focusing structure.

[0036] The optical center of a single-vision lens (DIN ISO 13666:2019, section 3.2.15) is usually located in the central clear zone. Progressive ophthalmic lenses can include more than one, in particular two, central clear zones, for example, in the near vision portion (DIN ISO 13666:2019, section 3.15.3) and the distance vision portion (DIN ISO 13666:2019, section 3.15.1).

[0037] The "clear zone width" is the maximum extension of the starting point of the innermost annular focusing structure, or optionally the maximum extension of the starting point of the innermost annular diffusing structure.

[0038] The advantage of a central clear zone width within the range of 6 mm to 9.4 mm is that a smaller clear zone (e.g., 6 mm) increases the potential efficacy of the spectacle lens in slowing down the progression of myopia in the wearer. At the same time, the smaller clear zone may reduce the wearer's acceptance of the spectacle lens due to reduced wearability. A larger clear zone (e.g., 9.4 mm) may reduce the potential efficacy of the spectacle lens in slowing down the progression of myopia in the wearer. At the same time, the larger clear zone may increase the wearer's acceptance of the spectacle lens due to improved wearability.

[0039] The term "fill factor" must be subdivided into "length-based fill factor" and "surface-based fill factor." The length-based fill factor is used to determine the fill factor of circular focusing or diffusing structures. The surface-based fill factor is used to determine the fill factor of annular focusing or diffusing structures.

[0040] The length-based fill factor is defined as the ratio of the width of the inner circular focusing structure adjacent to the clear region (“width”) and the radial distance between the inner circular focusing structure and the adjacent circular focusing structures (“pitch”):

[0041]

[0042] The "pitch" is the distance between the starting points of two adjacent circular focusing or diffusing structures.

[0043] The advantage of a length-based fill factor is that it defines a balance between wearability and manufacturing of the spectacle lenses of the present invention, including circular focusing or diffusing structures. A length-based fill factor of more than 60% results in a reduced comfortable wearability of the spectacle lens, but increases the potential efficacy of the spectacle lens in slowing the progression of myopia in the wearer. A length-based fill factor of less than 40% results in a reduced potential efficacy of the spectacle lens in slowing the progression of myopia in the wearer, but increases the comfortable wearability of the spectacle lens. In other words, a well-defined balance between wearability and manufacturing of the spectacle lenses of the present invention is achieved by a length-based fill factor in the range of 40% to 60%. In particular, a length-based fill factor of 50% is preferred.

[0044] The surface-based fill factor is determined by the surface area ratio of the innermost annular focusing structure(s) or innermost annular diffusing structure(s) to the surface area of ​​the innermost annular focusing structure(s) or innermost annular diffusing structure(s) plus the surface area of ​​the peripheral clearing zone. The term "innermost" describes the annular focusing structure(s) or annular diffusing structure(s) closest to the central clearing zone. The term "peripheral clearing zone" refers to the first clearing zone adjacent to the central clearing zone.

[0045] The surface area of ​​the innermost annular focusing structures or the innermost annular diffusing structures is determined by the inner starting point line and the outer starting point line of the innermost annular focusing structures or the innermost annular diffusing structures. The inner starting point line passes along the inner starting point of the innermost annular focusing structures or the innermost annular diffusing structures, and the inner starting point line surrounds the central clear area. The outer starting point line passes along the outer starting point of the innermost annular focusing structures or the innermost one or more annular diffusing structures, and the outer starting point line is surrounded by the peripheral clear area. The inner starting point line and the outer starting point line of the innermost annular focusing structures or the innermost one or more annular diffusing structures enclose a surface area along the surface of the base eyeglass without structure, and the surface area is the surface area of ​​the innermost annular focusing structures or the innermost one or more annular diffusing structures.

[0046] The surface area of ​​the peripheral clear zone is determined by the outer starting point line of the innermost one or more annular focusing structures or the innermost one or more annular diffusing structures and the inner starting point line of the adjacent one or more annular focusing structures or the adjacent one or more annular diffusing structures. The inner starting point line of the adjacent one or more annular focusing structures or the adjacent one or more annular diffusing structures passes along the inner starting point of the adjacent one or more annular focusing structures or the adjacent one or more annular diffusing structures, and the inner starting point line surrounds the peripheral clear zone.

[0047] The outer starting point line of the innermost one or more annular focusing structures or the innermost one or more annular diffusing structures and the inner starting point line of the adjacent one or more annular focusing structures or the adjacent one or more annular diffusing structures enclose a surface area along the lens, and the surface area is the surface area of ​​the peripheral clear zone.

[0048] The advantage of the surface-based fill factor is that it defines a balance between wearability and manufacturing of the spectacle lenses of the present invention that include annular focusing or diffusing structures. A surface-based fill factor of more than 59.2% results in a reduced comfortable wearability of the spectacle lens, but increases the potential efficacy of the spectacle lens in slowing down the progression of myopia in the wearer. A surface-based fill factor of less than 56.1% results in a reduced potential efficacy of the spectacle lens in slowing down the progression of myopia in the wearer, but increases the comfortable wearability of the spectacle lens. In other words, a well-defined balance between wearability and manufacturing of the spectacle lenses of the present invention is achieved by a surface-based fill factor in the range of 34.6% to 59.2%. In particular, a surface-based fill factor of 46.4% to 47.7% is preferred.

[0049] The above problems are completely solved by the spectacle lens as described above. Since the intended wearers are children, a high level of comfort and wearability will prevent children from removing the spectacle lens.

[0050] A preferred embodiment of the spectacle lens designed according to the present invention may be characterized in that the width of the annular focusing structure or the annular diffusing structure is within at least one range of the following group of ranges:

[0051] (i) the width is greater than 0.2 mm and equal to or less than 0.7 mm;

[0052] (ii) the width is greater than 0.3 mm and equal to or less than 0.7 mm;

[0053] (iii) the width is equal to or less than 0.6 mm;

[0054] (iv) the width is greater than 0.2 mm and equal to or less than 0.6 mm;

[0055] (v) the width is greater than 0.3 mm and equal to or less than 0.6 mm;

[0056] (vi) the width is equal to or less than 0.5 mm;

[0057] (vii) the width is greater than 0.2 mm and equal to or less than 0.5 mm;

[0058] (viii) The width is greater than 0.3 mm and equal to or less than 0.5 mm.

[0059] The advantage lies in a well-defined balance between wearability and manufacturing of the spectacle lens according to the invention. A reduction in the width of the annular structure makes the spectacle lens more comfortable to wear. An increase in the width of the annular structure makes it easier to manufacture the spectacle lens.

[0060] In another preferred embodiment of the present invention, the ophthalmic lens is characterized in that the central clear zone width is within at least one of the following group of ranges:

[0061] (i) the width of the central clear area is greater than 6 mm and less than or equal to 7 mm;

[0062] (ii) The width of the central clear area is greater than 7 mm and less than or equal to 9.4 mm.

[0063] The advantage of a central clear zone width within the range of 6 mm to 7 mm is that a small clear zone (e.g., 6 mm) increases the potential efficacy of the spectacle lens in slowing down the progression of myopia in the wearer. At the same time, the small clear zone may reduce the wearer's acceptance of the spectacle lens due to reduced wearability comfort. The advantage of a central clear zone width within the range of 7 mm to 9.4 mm is that a large clear zone (e.g., 9.4 mm) increases the wearer's acceptance of the spectacle lens due to improved wearability comfort.

[0064] A further advantageous embodiment of the ophthalmic lens according to the invention is characterized in that the one or more annular focusing structures provide, compared to the central clear zone, a lower addition within at least one range from the group of the following ranges:

[0065] (i) the lower addition is greater than 6 diopters and equal to or less than 12 diopters;

[0066] (ii) the lower addition is greater than 7 diopters and equal to or less than 11 diopters;

[0067] (iii) The lower added light is greater than 8 diopters and equal to or less than 10 diopters.

[0068] In the context of this specification, the term "lower add" applies to an optical power added to the optical power of a spectacle lens in at least one meridian, wherein the optical power of the spectacle lens, with the aid of accommodation, will provide a focused image on the fovea and, when added to the optical power of the spectacle lens, provides myopic defocus. Lower add is not to be confused with the lower add of a progressive addition lens.

[0069] The term "optical power" is a collective term for the spherical vertex power of a spectacle lens, which brings a paraxial parallel beam to a single focus and is usually considered in prescriptions with the "sphere" value or the abbreviation "sph", and the cylindrical vertex power, which brings a paraxial parallel beam to two separate focal lines at right angles to each other (DIN ISO 13666:2019, section 3.10.2), and is usually considered in prescriptions with the "cylinder" value or the abbreviation "cyl".

[0070] This further advantageous embodiment has the advantage of defining a balance between wearability and manufacturing of the spectacle lens of the present invention. A lower addition of between 10 and 12 diopters increases the potential effectiveness of the spectacle lens in slowing the progression of myopia in the wearer. A lower addition of between 6 and 8 diopters increases the comfortable wearability of the spectacle lens. In other words, a well-defined balance between wearability and manufacturing of the spectacle lens of the present invention is achieved by a lower addition in the range of 6 to 8 diopters. In particular, a lower addition of 10 diopters is preferred.

[0071] The ophthalmic lens according to the invention may be in the form of computer-readable instructions for the production of the ophthalmic lens stored on a computer-readable data carrier.

[0072] The ophthalmic lens designed according to the principles of the present invention may also be implemented in the form of computer-readable data stored on a computer-readable data carrier.

[0073] The ophthalmic lens according to the invention may be in the form of computer-readable instructions for the production of the ophthalmic lens converted into a data carrier signal.

[0074] The eyeglasses designed according to the principles of the present invention can also be implemented in the form of a data carrier signal.

[0075] The ophthalmic lens according to the invention may be in the form of a digital data set.

[0076] The ophthalmic lens according to the invention may be in the form of a data signal transmitting a digital data set.

[0077] The ophthalmic lens according to the invention may be in the form of a data carrier storing a digital data set. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] The present invention will be described exemplarily below with reference to the accompanying drawings.

[0079] Figure 1 A single vision lens having a plurality of annular focusing structures according to a first embodiment of the present invention is shown.

[0080] Figure 2 Shown according to Figure 1A cross-sectional view of a single vision lens is provided to illustrate how to determine the width of the annular focusing structure, the pitch between two adjacent annular focusing structures, and the central clear zone width.

[0081] Figure 3 A coated single vision lens having a plurality of annular focusing structures according to a second embodiment of the present invention is shown.

[0082] Figure 4 Shown according to Figure 3 Cross-sectional view of a single vision lens in order to demonstrate how to determine the width of the annular focusing structure, the pitch of two adjacent annular focusing structures, and the central clear area in the presence of a coating.

[0083] Figure 5 A single vision lens having a plurality of annular diffusion structures according to a third embodiment of the present invention is shown.

[0084] Figure 6 Shown according to Figure 5 A cross-sectional view of a single vision lens is provided to illustrate how to determine the width of the annular diffusion structure, the pitch between two adjacent annular diffusion structures, and the central clear area width.

[0085] Figure 7 A single vision lens having a plurality of annular focusing structures according to a fourth embodiment of the present invention is shown.

[0086] Figure 8 A single vision lens having a plurality of annular focusing structures according to a fifth embodiment of the present invention is shown.

[0087] Figure 9 A single vision lens having a plurality of annular focusing structures according to a sixth embodiment of the present invention is shown.

[0088] Figure 10 A progressive ophthalmic lens having a plurality of annular focusing structures according to the present invention is shown.

[0089] Figure 11 A single vision lens with multiple annular focusing structures according to another embodiment of the present invention is shown, wherein the focusing structures are composed of multiple small lenses connected in series. DETAILED DESCRIPTION

[0090] about Figure 1 and Figure 2A first exemplary embodiment of the present invention is described, and the figures show a single-vision lens 100. Single-vision lens 100 includes a central clear zone 110. In this embodiment, central clear zone 110 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 100 also includes five circular focusing structures 101 to 105 of equal cross-section. Circular refers to a ring-shaped shape with a circular outline in front view.

[0091] The circular focusing structures 101 to 105 are formed so as to provide an additional optical power of 12 diopters compared to the optical power of the central clear zone 110. This additional optical power is perceived by the wearer as blur and is presented, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0092] Figure 1 and Figure 2 The diameter of the single vision lens 100 shown is 7 cm. Figure 1 The lens 100 needs to undergo an edging process in order to be fitted into a corresponding spectacle frame. The single-vision lens 100 includes five circular focusing structures 101 to 105. The circular focusing structures 101 to 105 are arranged concentrically toward the optical center of the single-vision lens 100. In addition, the circular focusing structure 101 surrounds a central clear area 110, and the circular central clear area width cw110 of the central clear area is 7.0 mm. The width w101 of the circular focusing structure 101 is 0.5 mm. The adjacent circular structures 102 are arranged concentrically with the inner circular structure 101 surrounding the circular central clear area 110, with a pitch p101 of 1.0 mm. The ratio of the width w101 to the pitch p101 results in a length-based filling factor of 50.0% and a surface-based filling factor of 46.9%.

[0093] Figure 2A cross-sectional view of a single-vision lens 100 is shown. The front surface 131 and the back surface 133 of the single-vision lens 100 are spherical. Within the scope of the present invention, the shapes of the front surface 131 and the back surface 133 of the single-vision lens 100 are not limited to spherical shapes and may also be aspherical, toric, non-toric, or even free-form surfaces to suit the wearer's individual needs.

[0094] Figure 2 It shows how to determine the inner starting point io101 of the circular focusing structure 101 and the outer starting point oo101 of the circular focusing structure 101, the widths w101 to w103 of the circular focusing structure, the pitch p101 of two adjacent circular focusing structures, and the central clear area width cw110. Figure 1 Compared with the five circular focusing structures 101 to 105 shown, Figure 2 Only three circular focusing structures 101 to 103 are shown.

[0095] The determination of the inner and outer starting points of the circular focusing structure 101 is explained as an example. The inner starting point io101 of the circular focusing structure 101 is a point directly adjacent to the central clear area 110. The outer starting point oo101 of the circular focusing structure 101 is a point radially arranged from the inner starting point io101 and directly adjacent to the peripheral clear area 120.

[0096] The width w101 of the circular focusing structure 101 is the radial distance between the inner starting point io101 and the outer starting point oo101. Correspondingly, the widths w102 and w103 are determined using the inner starting points io102, io103 and the outer starting points oo102, oo103.

[0097] The pitch p101 of the circular focusing structure 101 is the radial distance between the inner starting point io101 of the circular focusing structure 101 and the inner starting point io102 of the circular focusing structure 102. Accordingly, the pitch w102 is determined using the inner starting points io102 and io103.

[0098] The central clear zone width cw110 of the single vision lens 100 is the diameter of the central clear zone 110 .

[0099] according to Figure 1 and Figure 2 The single vision lens 100 of the first embodiment discloses a central clear zone width cw110 that provides a better wearer acceptance response compared to the prior art. Furthermore, the length-based fill factor lf101 and pitch p101 are designed to achieve better wearer comfort and acceptance response compared to the prior art.

[0100] about Figure 3 and Figure 4 A second exemplary embodiment of the present invention is described, and these figures show a coated single-vision lens 200. Coated single-vision lens 200 includes a coated central clear zone 210. In this embodiment, coated central clear zone 210 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, coated single-vision lens 200 includes five additional coated circular focusing structures 201 to 205 of equal cross-section. Circular refers to a ring shape having a circular outline when viewed from the front.

[0101] The coated circular focusing structures 201 to 205 are formed to provide an additional optical power of 12 diopters compared to the optical power of the coated central clear zone 210. This additional optical power is perceived by the wearer as blur and is demonstrated, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0102] Figure 3 and Figure 4 The diameter of the coated single vision lens 200 shown is 7 cm. Figure 3 The lens 200 requires an edging process in order to fit into a corresponding spectacle frame. The coated single-vision lens 200 includes five coated circular focusing structures 201 to 205. These coated circular focusing structures 201 to 205 are arranged concentrically toward the optical center of the coated single-vision lens 200. Furthermore, the coated circular focusing structures 201 surround a coated central clear zone 210, which has a coated circular central clear zone width cw210 of 7.0 mm. The coated circular focusing structures 201 have a width w201 of 0.5 mm. Adjacent coated circular structures 202 are arranged concentrically with the coated inner circular structures 201 surrounding the coated circular central clear zone 210, with a pitch p201 of 1.0 mm. The ratio of the width w201 to the pitch p201 results in a length-based fill factor of 50.0% and a surface-based fill factor of 46.9%.

[0103] Figure 4 A cross-sectional view of a coated single-vision lens 200 is shown. The coated front surface 231 and back surface 233 of the single-vision lens 200 are spherical in shape. Within the scope of the present invention, the shapes of the coated front surface 231 and back surface 233 of the coated single-vision lens 200 are not limited to spherical shapes and may also be aspherical, toric, or even free-form surfaces to suit the wearer's individual needs.

[0104] Figure 4 It shows how to determine the inner starting point io201 of the coated circular focusing structure 201 and the outer starting point oo201 of the coated circular focusing structure 201, the widths w201 to w203 of the coated circular focusing structure, the pitch p201 of two adjacent circular focusing structures, and the central clear area width cw210. Figure 3 Compared to the five coated circular focusing structures 201 to 205 shown, Figure 4 Only three coated circular focusing structures 201 to 203 are shown.

[0105] For the coated circular focusing structure 201, the determination of the inner starting point and the outer starting point of the coated circular focusing structure is explained as an example. The inner starting point io201 of the coated circular focusing structure 201 represents the first measurable inner position of the coated annular focusing structure 201 on the surface of the eyeglass lens (measured from the optical center of the eyeglass lens). In other words, the inner starting point io201 represents the position on the surface of the eyeglass lens where the surface shape of the coated focusing structure begins to deviate from the shape of the base lens surface. Figure 4 , the first deviation and therefore the inner starting point io201 is located at the point where the coating 237 is no longer parallel to the shape of the front surface 231.

[0106] The outer starting point oo201 of the coated circular focusing structure 201 represents the first measurable outer position of the coated annular focusing structure 201 on the surface of the ophthalmic lens (measured from the optical center of the ophthalmic lens). In other words, the outer starting point oo201 represents the position on the surface of the ophthalmic lens where the surface shape of the coated focusing structure begins to deviate from the shape of the base lens surface. Figure 4 , the first deviation and therefore also the outer starting point oo201 is located at the point where the coating 237 is parallel to the shape of the front surface 231.

[0107] The width w201 of the coated circular focusing structure 201 is the radial distance between the inner starting point io201 and the outer starting point oo201. Accordingly, the widths w202 and w203 are determined using the inner starting points io202, io203 and the outer starting points oo202, oo203.

[0108] The pitch p201 of the coated circular focusing structure 201 is the radial distance between the inner starting point io201 of the coated circular focusing structure 201 and the inner starting point io202 of the coated circular focusing structure 202. Accordingly, the pitch w202 is determined using the inner starting points io202 and io203.

[0109] The central clear zone width cw210 of the coated single vision lens 200 is the diameter of the coated central clear zone 210 .

[0110] according to Figure 3 and Figure 4 The coated single-vision lens 200 of the first embodiment discloses a central clear zone width cw210 that provides a better wearer acceptance response compared to the prior art. Furthermore, the length-based fill factor lf201 and pitch p201 are designed to achieve better wearer comfort and acceptance response compared to the prior art.

[0111] about Figure 5 and Figure 6 A third exemplary embodiment of the present invention is described, and these figures show a single-vision lens 300. Single-vision lens 300 includes a central clear zone 310. In this embodiment, central clear zone 310 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 300 includes five additional circular diffusing structures 301 to 305 of equal cross-section. Circular refers to a ring-shaped structure with a circular outline when viewed from the front.

[0112] The circular diffusing structures 301 to 305 are formed so as to reduce the visual acuity of the wearer by 0.1 to 0.2 log MAR. Thus, the circular diffusing structures 301 to 305 cause diffusion and / or scattering of light.

[0113] Figure 5 and Figure 6 The diameter of the single vision lens 300 shown is 7 cm. Figure 5The lens 300 requires an edging process in order to fit into a corresponding spectacle frame. The single-vision lens 300 includes five circular diffusing structures 301 to 305. The circular diffusing structures 301 to 305 are arranged concentrically toward the optical center of the single-vision lens 300. Furthermore, the circular diffusing structures 301 surround a central clear area 310, which has a circular central clear area width cw310 of 7.0 mm. The width w301 of the circular diffusing structures 301 is 0.5 mm. Adjacent circular structures 302 are arranged concentrically with the inner circular structures 301 surrounding the circular central clear area 310, with a pitch p301 of 1.0 mm. The ratio of width w301 to pitch p301 results in a length-based fill factor of 50.0% and a surface-based fill factor of 46.9%.

[0114] Figure 6 A cross-sectional view of a single-vision lens 300 is shown. The front surface 331 and the back surface 333 of the single-vision lens 300 are spherical. Within the scope of the present invention, the shapes of the front surface 331 and the back surface 333 of the single-vision lens 300 are not limited to spherical shapes and can also be aspherical, toric, non-toric, or even free-form surfaces to meet the individual needs of the wearer.

[0115] Figure 6 It shows how to determine the inner starting point io301 of the circular diffusion structure 301 and the outer starting point oo301 of the circular diffusion structure 301, the widths w301 to w303 of the circular diffusion structure, the pitch p301 of two adjacent circular diffusion structures, and the central clear area width cw310. Figure 5 Compared with the five circular diffusion structures 301 to 305 shown, Figure 6 Only three circular diffusing structures 301 to 303 are shown.

[0116] The determination of the inner and outer starting points of the circular diffusing structure 301 is exemplarily explained. The inner starting point io301 of the circular diffusing structure 301 is a point directly adjacent to the central clear area 310. The outer starting point oo301 of the circular diffusing structure 301 is a point radially arranged from the inner starting point io301 and directly adjacent to the peripheral clear area 320.

[0117] The width w301 of the circular diffusion structure 301 is the radial distance between the inner starting point io301 and the outer starting point oo301. Correspondingly, the widths w302 and w303 are determined using the inner starting points io302, io303 and the outer starting points oo302, oo303.

[0118] The pitch p301 of the circular diffusing structure 301 is the radial distance between the inner starting point io301 of the circular diffusing structure 301 and the inner starting point io302 of the circular diffusing structure 302. Accordingly, the pitch w302 is determined using the inner starting points io302 and io303.

[0119] The central clear zone width cw310 of the single vision lens 300 is the diameter of the central clear zone 310 .

[0120] according to Figure 5 and Figure 6 The single vision lens 300 of the third embodiment discloses a central clear zone width cw310 that provides a better wearer acceptance response compared to the prior art. Furthermore, the length-based fill factor lf301 and pitch p301 are designed to achieve better wearer comfort and acceptance response compared to the prior art.

[0121] about Figure 7 A fourth exemplary embodiment of the present invention is described, showing a single-vision lens 400. Single-vision lens 400 includes a central clear zone 410. In this embodiment, central clear zone 410 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 400 includes five additional circular focusing structures 401 to 405 of equal cross-section. Circular refers to a ring-shaped shape with a circular outline when viewed from the front.

[0122] The circular focusing structures 401 to 405 are formed so as to provide an additional optical power of 8 diopters compared to the optical power of the central clear zone 410. This additional optical power is perceived by the wearer as blur and is presented, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0123] Figure 7 The diameter of the single vision lens 400 shown is 7 cm. Figure 7The lens 400 needs to undergo an edging process in order to be fitted into a corresponding spectacle frame. The single-vision lens 400 includes five circular focusing structures 401 to 405. The circular focusing structures 401 to 405 are arranged concentrically toward the optical center of the single-vision lens 400. In addition, the circular focusing structures 401 surround a central clear area 410, the circular central clear area width cw410 of which is 9.4 mm. The width w401 of the circular focusing structure 401 is 0.5 mm. The adjacent circular structures 402 are arranged concentrically with the inner circular structure 401 surrounding the circular central clear area 410, with a pitch p401 of 1.2 mm. The ratio of the width w401 to the pitch p401 results in a length-based filling factor of 41.7% and a surface-based filling factor of 38.9%.

[0124] according to Figure 7 The fourth embodiment of the single vision lens 400 discloses Figure 1 The central clear zone width cw410 is wider than the central clear zone width cw110 of the first embodiment, which makes the wearer's acceptance response better. In addition, the length-based filling factor lf401 and the pitch p401 are designed so that Figure 1 Compared with the first embodiment, better comfort and acceptance response of the wearer are achieved.

[0125] about Figure 8 A fifth exemplary embodiment of the present invention is described, showing a single-vision lens 500. Single-vision lens 500 includes a central clear zone 510. In this embodiment, central clear zone 510 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 500 includes five additional circular focusing structures 501 to 505 of equal cross-section. Circular refers to a ring-shaped shape with a circular outline when viewed from the front.

[0126] The circular focusing structures 501 to 505 are formed so as to provide an additional optical power of 10 diopters compared to the optical power of the central clear zone 510. This additional optical power is perceived by the wearer as blur and is presented, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0127] Figure 8 The diameter of the single vision lens 500 shown is 7 cm. Figure 8 The lens 500 requires an edging process in order to be fitted into a corresponding spectacle frame. The single-vision lens 500 includes five circular focusing structures 501 to 505. The circular focusing structures 501 to 505 are arranged concentrically toward the optical center of the single-vision lens 500. In addition, the circular focusing structures 501 surround a central clear area 510, which has a circular central clear area width cw510 of 9.4 mm. The width w501 of the circular focusing structure 501 is 0.5 mm. The adjacent circular structures 502 are arranged concentrically with the inner circular structure 501 surrounding the circular central clear area 510, with a pitch p501 of 1.5 mm. The ratio of the width w501 to the pitch p501 results in a length-based fill factor of 33.3% and a surface-based fill factor of 30.3%.

[0128] according to Figure 8 The fourth embodiment of the single vision lens 500 discloses Figure 1 The central clear zone width cw510 is wider than the central clear zone width cw110 of the first embodiment, which makes the wearer's acceptance response better. In addition, the length-based filling factor lf501 and the pitch p501 are designed so that Figure 8 Compared with the first embodiment, better comfort and acceptance response of the wearer are achieved.

[0129] about Figure 9 A sixth exemplary embodiment of the present invention is described, showing a single-vision lens 600. Single-vision lens 600 includes a central clear zone 610. In this embodiment, central clear zone 610 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 600 includes five additional circular focusing structures 601 to 605 of equal cross-section. Circular refers to a ring-shaped shape with a circular outline when viewed from the front.

[0130] The circular focusing structures 601 to 605 are formed to provide an additional optical power of 12 diopters compared to the optical power of the central clear zone 610. This additional optical power is perceived by the wearer as blur and is presented, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0131] Figure 9 The diameter of the single vision lens 600 shown is 7 cm. Figure 9 The lens 600 needs to undergo an edging process in order to be fitted into a corresponding spectacle frame. The single-vision lens 600 includes five circular focusing structures 601 to 605. The circular focusing structures 601 to 605 are arranged concentrically toward the optical center of the single-vision lens 600. In addition, the circular focusing structures 601 surround a central clear area 610, which has a circular central clear area width cw610 of 6.0 mm. The width w601 of the circular focusing structure 601 is 0.5 mm. The adjacent circular structures 602 are arranged concentrically with the inner circular structure 601 surrounding the circular central clear area 610, with a pitch p601 of 1.7 mm. The ratio of the width w601 to the pitch p601 results in a length-based fill factor of 29.4% and a surface-based fill factor of 25.8%.

[0132] according to Figure 9 The fourth embodiment of the single vision lens 600 discloses Figure 1 The central clear area width cw610 is narrower than the central clear area width cw110 of the first embodiment, which makes the area for myopia correction smaller. However, the length-based filling factor lf601 and the pitch p601 are designed so that Figure 1 Compared with the first embodiment, better comfort and acceptance response of the wearer are achieved.

[0133] Combine Figure 10 Another exemplary embodiment of the present invention is depicted, the figure showing a progressive ophthalmic lens 700. The progressive ophthalmic lens 700 comprises a distance vision portion 750, a corridor 760 and a near vision portion 770. Figure 10Circular focusing structures 701 to 705 in the distance portion 750 and circular focusing structures 711 and 712 in the near portion 770 are shown.

[0134] The distance vision portion 750 includes four circular focusing structures 701 to 704. These structures are arranged concentrically with respect to a distance vision reference point 751. The distance vision reference point 751 is the point on the front surface of the spectacle lens to which the verification power 753 of the distance vision portion 750 applies (DIN ISO 13666:2019, Section 3.2.20). The verification power 753 is the refractive power specifically calculated by the manufacturer of the lens and provided as a verification reference (DIN ISO 13666:2019, Section 3.10.15). Furthermore, the circular structures 701 surround a central clear zone 710 having a central clear zone width cw710 of 7.0 mm. The width w701 of the circular structures 701 corresponds to 0.5 mm. Adjacent circular structures 702 are arranged concentrically with the circular structures 701, with a pitch p701 of 1.5 mm. Pitch p701 is the distance from the inner starting point of circular structure 701 to the inner starting point of circular structure 702. The ratio of width w701 and pitch p701 is such that the length-based fill factor lf701 is 33.3% and the surface-based fill factor is 29.4%.

[0135] The near vision portion 770 includes two circular focusing structures 711 and 712. The structures are arranged concentrically toward a near vision reference point 771. The near vision reference point 771 is the point on the front surface of the spectacle lens to which the verification power 753 of the near vision portion 770 applies (DIN ISO 13666:2019, Section 3.2.21). The verification power 753 is the refractive power of the lens specifically calculated by the manufacturer and provided as a verification reference (DIN ISO 13666:2019, Section 3.10.15). In addition, the circular structure 701 surrounds a central clear zone 720, the central clear zone width cw711 of which is 6.0 mm. The width w711 of the circular structure 711 corresponds to 0.5 mm. The adjacent circular structure 712 is arranged concentrically with the circular structure 711, with a pitch p711 of 1.1 mm. Pitch p711 is the distance from the inner starting point of circular structure 711 to the inner starting point of circular structure 712. The ratio of width w711 and pitch p711 is such that the length-based fill factor lf711 is 45.5% and the surface-based fill factor is 41.6%.

[0136] about Figure 11Another exemplary embodiment of the present invention is depicted, showing a single-vision lens 800. Single-vision lens 800 includes a central clear zone 810. In this embodiment, central clear zone 810 has an optical power designed to correct the wearer's existing myopia. In this exemplary embodiment, single-vision lens 800 includes five additional circular focusing structures 801-805. "Circular" refers to a ring-shaped shape with a circular outline when viewed from the front. In this embodiment, circular focusing structures 801-805 include individual small lenses connected to one another within a circular focusing structure 801-805.

[0137] The circular focusing structures 801 to 805 are formed to provide an additional optical power of 12 diopters compared to the optical power of the central clear zone 810. This additional optical power is perceived by the wearer as blur and is presented, for example, in Li X, Ding C, Li Y, Lim EW, Gao Y, Fermigier B, Yang A, Chen H, Bao J, Influence of Lenslet Configuration on Short-Term Visual Performance in Myopia Control Spectacle Lenses. Frontiers in Neuroscience, 2021. This additional optical power slows the progression of myopia in the wearer.

[0138] Figure 11 The diameter of the single vision lens 800 shown is 7 cm. Figure 11 The lens 800 needs to undergo an edging process in order to be fitted into a corresponding spectacle frame. The single-vision lens 800 includes five circular focusing structures 801 to 805. The circular focusing structures 801 to 805 are arranged concentrically toward the optical center of the single-vision lens 800. In addition, the circular focusing structures 801 surround a central clear area 810, which has a circular central clear area width cw810 of 6.0 mm. The width w801 of the circular focusing structure 801 is 0.5 mm. The adjacent circular structures 802 are arranged concentrically with the inner circular structure 801 surrounding the circular central clear area 810, with a pitch p801 of 1.7 mm. The ratio of the width w801 to the pitch p801 results in a length-based fill factor lf801 of 29.4% and a surface-based fill factor of 24.8%.

[0139] Table 1 below shows various design features of the present spectacle lenses, ranked by wearer satisfaction with wearability. Study subjects evaluated the design features on a scale of 1 to 10, where 10 equates to the best possible wearability of the spectacle lens (e.g., a single-vision lens with a length-based fill factor of 0%) and 1 equates to the worst possible wearability of the spectacle lens (e.g., a single-vision lens with a length-based fill factor of 100%). A wearability satisfaction rating of 4.0 or greater is considered adequate, indicating that children are likely to accept such lenses with this wearability satisfaction rating and are unlikely to be inclined to reject the spectacle lenses.

[0140] Therefore, lenses 1 to 9 in Table 1 are further examples of the spectacle lenses of the present invention, and lenses 10 to 16 are regarded as reference lenses of lenses 1 to 9 with respect to wearability satisfaction.

[0141] Table 1. Design features and wearer satisfaction of selected lenses with specific characterizations and visual acuity when viewing through the periphery of the lens.

[0142]

Claims

1. A spectacle lens (100 to 800) for slowing down the progression of myopia, characterized in that The ophthalmic lens comprises one or more annular focusing structures (101, 102, 103, ...) or one or more annular diffusing structures (301, 302, 303, ...), each annular focusing structure or annular diffusing structure having a corresponding width (w101, w102, w103, ...; w301, w302, w303, ...), and at least one additional feature from the following group of features: (i) a central clear area (110, 210, 310, ...) having a central clear area width (cw110, cw210, cw310, ...) in the range of 6 mm to 9.4 mm, and the width (w101, w102, w103, ...; w301, w302, w303, ...) being equal to or less than 0.7 mm; (ii) the widths (w101, w102, w103, ...; w301, w302, w303, ...) are less than 0.5 mm; (iii) a surface-based filling factor (sf101, sf201) defined as the ratio of the surface area of ​​the innermost annular focusing structure of the one or more annular focusing structures (101, 102, 103, ...) or the innermost annular diffusing structure of the one or more annular diffusing structures (301, 302, 303, ...) to the surface area of ​​the innermost one or more annular focusing structures (101, 102, 103, ...) or the innermost one or more annular diffusing structures (301, 302, 303, ...) , for the widths (w101, w102, w103, ...; w301, w302, w303, ...) of the one or more annular structures (101, 102, 103, ...) or the one or more annular diffusing structures (301, 302, 303, ...) in the range of 0.6 mm to 0.7 mm, the surface-based filling factors (sf101, sf201) are greater than 17% and equal to or less than 70%; (iv) a surface-based filling factor (sf101, sf201) defined as the ratio of the surface area of ​​the innermost annular focusing structure of the one or more annular focusing structures (101, 102, 103, ...) or the innermost annular diffusing structure of the one or more annular diffusing structures (301, 302, 303, ...) to the surface area of ​​the innermost one or more annular focusing structures (101, 102, 103, ...) or the innermost one or more annular diffusing structures (301, 302, 303, ...) , for the widths (w101, w102, w103, ...; w301, w302, w303, ...) of the one or more annular structures (101, 102, 103, ...) or the one or more annular diffusing structures (301, 302, 303, ...) in the range of 0.5 mm to 0.6 mm, the surface-based filling factors (sf101, sf201) are greater than 15% and equal to or less than 60%; (v) a surface-based filling factor (sf101, sf201) defined as the ratio of the surface area of ​​the innermost annular focusing structure of the one or more annular focusing structures (101, 102, 103, ...) or the innermost annular diffusing structure of the one or more annular diffusing structures (301, 302, 303, ...) to the surface area of ​​the innermost one or more annular focusing structures (101, 102, 103, ...) or the innermost one or more annular diffusing structures (301, 302, 303, ...) The sum of the surface area of ​​the one or more annular structures (101, 102, 103, ...) and the area of ​​the peripheral clear zone (110, 210, 310, ...), for the width (w101, w102, w103, ...; w301, w302, w303, ...) less than 0.5 mm of the one or more annular structures (101, 102, 103, ...) or the one or more annular diffusing structures (301, 302, 303, ...), the surface-based filling factor (sf101, sf201) is greater than 6% and equal to or less than 50%.

2. The spectacle lens (100 to 800) for slowing down the progression of myopia according to claim 1, characterized in that The widths (w101, w102, w103, ...; w201, w202, w103, ...) are within at least one range of the following range group: (i) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.2 mm and equal to or less than 0.7 mm; (ii) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.3 mm and equal to or less than 0.7 mm; (iii) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are equal to or less than 0.6 mm; (iv) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.2 mm and equal to or less than 0.6 mm; (v) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.3 mm and equal to or less than 0.6 mm; (vi) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are equal to or less than 0.5 mm; (vii) the widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.2 mm and equal to or less than 0.5 mm; (viii) The widths (w101, w102, w103, ...; w201, w202, w103, ...) are greater than 0.3 mm and equal to or less than 0.5 mm.

3. The spectacle lens (100 to 800) for slowing down the progression of myopia according to claim 1 or 2, characterized in that: The central clear area width (cw110, cw210, cw310, ...) is within at least one range of the following range group: (i) the width of the central clear area (cw110, cw210, cw310, ...) is greater than 6 mm and less than or equal to 7 mm; (ii) The central clear area width (cw110, cw210, cw310, ...) is greater than 7 mm and less than or equal to 9.4 mm.

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