Compound microlens design for hyperopic peripheral defocus reduction

Abstract

To provide a design for a microlens that furthers the ability and flexibility of dealing with the evolution of myopia, in particular, dealing with defocusing of the periphery that leads to eye elongation or growth.SOLUTION: A spectacle lens is disclosed, comprising compound microlenses arranged in a pattern. A compound microlens includes an on-axis microlenslet and an off-axis sub-lenslet located on the on-axis microlenslet. The off-axis sub-lenslet has a different optical functionality from the on-axis microlenslet. By selecting an appropriate compound microlens design, addition of microlenslets with sub-lenslets around the periphery of the main structure optimizes the spectacle lens for myopia prevention, vertigo prevention, or any other visual related condition.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] The present disclosure is directed to spectacle lenses for the control and prevention of myopia, anti-reflection, and correction of other visual defects of the human eye. More specifically, optical substrates may be incorporated into compound microlenses comprising microlenslets and off-axis sublenslets, where the off-axis sublenslets have a different optical function than the microlenslets. [Background technology]

[0002] The "Background" discussion provided herein is intended to generally set forth the context for the present disclosure. The inventors' presently described work, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are not admitted expressly or impliedly as prior art to the present invention to the extent that they are described in this Background section.

[0003] The progression of the eye toward myopia falls into a category known as emmetropization. This process is guided by visual input, and the mechanisms regulating this process are not fully understood. Emmetropization occurs through an active mechanism in which defocus promotes eye growth, and both genetic factors and emmetropization influence axial growth of the eye. Figure 1 illustrates hyperopic defocus in the eye. It has long been thought that wearing corrective eyeglasses may impede the emmetropization process in young children, a hypothesis supported by animal studies, particularly. However, undercorrection of myopia in humans has been shown to increase the rate of myopia progression. However, it is not yet fully understood for which patient groups, if any, wearing corrective eyeglasses in early childhood actually impedes emmetropization.

[0004] There have been several studies on the causative factors involved in the progression of myopia. In particular, statistics show that prolonged close-up work correlates with the progression of myopia, but whether a causal relationship exists remains unclear. Many hypotheses exist to explain the nature, onset, and progression of myopia, and some specifically address peripheral defocus. Figure 2 illustrates peripheral defocus in the eye. In particular, this hypothesis states that localized hyperopic defocus in the peripheral field of the eye leads to elongation or growth of the eye. This phenomenon occurs even after the eye has been corrected with a single-vision lens device. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] U.S. Patent No. 9,442,308 Summary of the Invention [Problem to be solved by the invention]

[0006] One objective of this disclosure is to present a microlens design that promotes the ability and flexibility to address the progression of myopia, particularly addressing peripheral defocus that leads to eye elongation or growth. [Means for solving the problem]

[0007] A first aspect is an eyeglass lens including a plurality of compound microlenses arranged in a pattern, at least one compound microlens of the plurality of microlenses including an on-axis microlenslet and at least one off-axis sub-lenslet disposed on the on-axis microlenslet, the at least one off-axis sub-lenslet having a different optical function than the on-axis microlenslet.

[0008] Compound microlens designs can have one design for the on-axis microlenslets and several different designs for the off-axis sub-lenslets. The axis is the line or optical axis that passes through the optical center of the microlens, which is the basis for the terms on-axis and off-axis. The optical center of a microlens is the point through which light rays can pass without being deflected.

[0009] In a second embodiment, at least one off-axis sub-lenslet has a different shape than the on-axis microlenslet.

[0010] In a third embodiment, a central portion of the on-axis microlenslets provides optical power, and at least one off-axis sub-lenslet provides peripheral defocus.

[0011] In a fourth embodiment, the on-axis microlenslet is spherical and at least one off-axis sub-lenslet is spherical.

[0012] In a fifth embodiment, the height of the on-axis microlenslets is 2 microns or less.

[0013] In a sixth embodiment, two sub-lenslets of the at least one off-axis sub-lenslet are disposed at the left and right portions, respectively, of the on-axis micro-lenslet.

[0014] In a seventh embodiment, three sublenslets of at least one off-axis sublenslet are arranged at the vertices of a triangular arrangement around the on-axis microlenslet.

[0015] In an eighth embodiment, four of the at least one off-axis sub-lenslet are positioned on different opposite sides of the periphery of the on-axis microlenslet.

[0016] In a ninth embodiment, the on-axis microlenslet is spherical and at least one off-axis sub-lenslet is concave spherical.

[0017] In a tenth embodiment, the on-axis microlenslet is one of spherical, aspherical, prismatic, cylindrical, toric, hemispherical, and semi-cylindrical.

[0018] In an eleventh aspect, at least one off-axis sub-lenslet is one of a convex spherical surface, a concave spherical surface, and a prismatic shape.

[0019] In a twelfth aspect, the plurality of at least one off-axis sub-lenslet has a different shape.

[0020] In a thirteenth aspect, a plurality of compound microlenslets are disposed in one of four quadrants of an eyeglass lens.

[0021] In a fourteenth embodiment, a plurality of compound microlenses are arranged such that the pattern is a ring pattern.

[0022] In a fifteenth embodiment, the ring pattern is a plurality of concentric rings.

[0023] The foregoing general description of exemplary embodiments and the following detailed description thereof are merely exemplary aspects of the teachings of the present disclosure and are not intended to be limiting.

[0024] A more complete understanding of the present disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 1 illustrates hyperopic defocus of the eye. [Figure 2] FIG. 1 illustrates peripheral defocus in the eye. [Figure 3A] FIG. 1 illustrates microlenses arranged on a single vision spectacle lens. [Figure 3B] FIG. 1 illustrates microlenses arranged on a single vision spectacle lens. [Figure 4] 1A and 1B are diagrams illustrating the shape of a compound microlens according to an exemplary embodiment of the present disclosure. [Figure 5] 1 illustrates a profile diagram of an on-axis microlenslet according to an exemplary embodiment of the present disclosure. [Figure 6] 1 illustrates a profile diagram of an off-axis sub-lenslet according to an exemplary embodiment of the present disclosure. [Figure 7A] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7B] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7C] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7D] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7E] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7F] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7G] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7H] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 7I] 1 illustrates a three-dimensional perspective view of an on-axis microlenslet or an off-axis sub-lenslet, according to an exemplary embodiment of the present disclosure. [Figure 8A] 1A and 1B illustrate examples of compound microlenses according to exemplary aspects of the present disclosure. [Figure 8B] 1A and 1B illustrate examples of compound microlenses according to exemplary aspects of the present disclosure. [Figure 8C]1A and 1B illustrate examples of compound microlenses according to exemplary aspects of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0026] In the drawings, like reference numerals indicate identical or corresponding parts throughout the several views. Furthermore, as used herein, the words "a," "an," and the like generally convey the meaning of "one or more" unless otherwise specified. The drawings are generally drawn to scale unless otherwise specified or unless illustrating a schematic structure or flow chart.

[0027] Additionally, the terms "approximately," "approximately," "about," and similar terms generally refer to a range that includes the specified value within a margin of 20%, 10%, or preferably 5%, and any value therebetween.

[0028] The present disclosure relates to the design of compound microlenses that include multi-segmented microstructure-scale features integrated into non-microstructures that comprise optical lenses (non-powered or powered). These compound microlenslets can be integrated directly onto the surface of the optical lens substrate, integrated onto a single film, or integrated into a multi-film-based laminate structure that is integrated as a wafer onto the optical lens. The wafer can be a single design and material that can be used with several optical lens substrate materials. The present disclosure involves the use of off-axis microstructured sub-lenslets arranged on an optical lens with different optical (focus, defocus, convergence power, divergence power, prismatic) functions on either side of the microlenslet's major central axis, which can have different optical power functions.

[0029] A compound microlens design may have one design for the on-axis microlenslets and several different designs for the off-axis sub-lenslets. The axis is the line or optical axis that passes through the optical center of the microlens, which is the basis for the terms on-axis and off-axis. The optical center of a microlens is the point through which light rays can pass without being deflected. In the example shown in FIG. 8A, the on-axis microlenslet 801 is on the axis of the microlens, represented by the dot in the center of the microlenslet 801. The off-axis lenslet 803 is offset from the axis of the microlens.

[0030] The present disclosure relates to light management in optical films, such as those associated with microstructures in applications for myopia control and prevention, anti-reflective surfaces, and addressing other vision-related health disorders. The present disclosure relates to various arrangements of microstructure designs on the surface of a substrate, on a film, or within a laminate structure.

[0031] The microstructure and substrate can be made of either the same material or materials that are compatible with each other to ensure good bonding and optical transparency at the microstructure / substrate interface. Examples of the same material include, but are not limited to, polycarbonate (PC), cycloaliphatic polycarbonate copolymer, poly(methyl methacrylate) (PMMA), polyamide (PA), copolyester, polyester teraphthalate (PET), cellulose triacetate (TAC), thermoplastic polyurethane (TPU), and cyclic olefin copolymer (COC). Examples of unsuitable filament / carrier pairs include, but are not limited to, PMMA / PC, copolyester / PC, polyester alloy / PC, and alicyclic polycarbonate / PC. Non-limiting examples of PMMA include Evonik ACRYLITE®, Arkema Altuglas®, and ChiMei ACRYREX®. Non-limiting examples of copolyesters include Eastman TRITAN™ and SK Chemical Ecozen®. Non-limiting examples of polyester alloys include SabicXYLEX™. Non-limiting examples of alicyclic polycarbonates include Mitsubishi Chemical Corporation's DURABIO™ and Teijin's Planext™. Non-limiting examples of PCs include Sabic Lexan™, Teijin Panlite™, and Covestro Makrolon™.

[0032] Typical examples of laminates include PC / PVA / PC, PC / PET / PC, and TAC / PVA / TAC polarized laminates, PC / PU / PC and PC / TPU / PC photochromic laminates, PC / MOF (multilayer optical film) / PC polarized, and / or blue cut and / or mirror laminates.

[0033] In some embodiments, the laminate structure is a multi-layer polarizing laminate, with two or more layers being different materials. Polarizing laminates include, but are not limited to, polycarbonate (PC) / polyvinyl alcohol (PVA) / PC, polycarbonate (PC) / polyester teraphthalate (PET) / PC, cellulose triacetate (TAC) / PVA / TAC, polyamide (PA) / PVA / PA, cyclic olefin copolymer (COC) / PVA / COC, thermoplastic polyurethane (TPU) / PVA / TPU, and PC / multilayer optical film (MOF) / PC. While the laminates are shown as symmetrical, asymmetric laminates can also be used.

[0034] In some embodiments, the laminate structure is a photochromic laminate of multiple layers, where two or more of the layers are different materials. Photochromatic laminates include, but are not limited to, polycarbonate (PC) / polyurethane (PU) / PC, PC / polyether block amide (PEBA) / PC, cellulose triacetate (TAC) / PU / TAC, TAC / PEBA / TAC, polyamide (PA) / PU / PA, PA / PEBA / PA, cyclic olefin copolymer (COC) / PU / COC, COC / PEBA / COC, and thermoplastic polyurethane (TPU) / PU / TPU, and TPU / PEBA / TPU. While the laminates are shown as symmetrical, asymmetric laminates can also be used.

[0035] In the context of this disclosure, the term "lens" may refer to an uncut optical lens, or an eyeglass lens that has been cut to fit a particular eyeglass frame, or an ophthalmic lens and an optical device adapted to be placed on the ophthalmic lens. The optical device may be placed on the front or back surface of the eyeglass lens. The optical device may be an optical patch. The optical device may be adapted to be removably placed on an ophthalmic lens, such as, for example, clip-on sunglasses configured to clip onto an eyeglass frame containing the ophthalmic lens.

[0036] Minghua Dai's Patent Document 1 describes a multi-element lens for controlling defocus and diopter for the prevention and treatment of myopia and hyperopia. According to Dai, the entire visual field inside the human eye can be divided into a central visual field, an equatorial visual field, and a partial peripheral visual field between the two other fields. The central visual field determines the clear visual acuity of the human eye, while the equatorial visual field has little effect on the clear visual acuity of the human eye, but eye growth and changes in this area have the most significant effect on the size of the eye shaft. Dai's invention then uses the method of optical defocus to design a multi-element lens.

[0037] To ensure complete or non-overcorrection of hyperopia, Dai describes a design that creates optical hyperopic defocus by providing low defocus or focus in the central visual region of the eye, high defocus of the convex lens to a lesser extent than the degree of correction in the equatorial visual region, and moderate defocus in other peripheral visual regions.

[0038] The multi-element lens includes a large convex lens for generating a large defocus, a small concave lens that can be mounted on the large convex lens, and multiple sub-concave lenses. By influencing light on the visual field of the human eye, it can effectively control the growth of the eye shaft, thereby achieving good properties for preventing and treating myopia and hyperopia. In some cases, the user may stop using the glasses once their vision has stabilized.

[0039] When forming a lens for slowing the progression of myopia, the second refractive region can be made of a material that focuses an image at a point in front of the retina of the eye. Therefore, when a patient observes an object using a lens for slowing the progression of myopia, an image of the object is formed on the retina, while an image is formed in front of the retina. That is, while the patient visually perceives the image of the object formed by the first refractive power, the lens slows the progression of myopia by forming an image in front of the retina, which is an effect obtained by a refractive power other than the first refractive power. Figures 3A and 3B show microlenses arranged on a single-vision spectacle lens. The particular spectacle lens has a first refractive region 301 having a first refractive power based on a prescription for correcting myopia, and a second refractive region 303 formed as multiple independent island-shaped regions near the center of the lens.

[0040] An alternative embodiment of this lens is shown in WO 2019 / 166659, which discusses a lens element intended to be worn in front of a person's eye to inhibit or reduce the progression of ocular refractive abnormalities such as myopia or hyperopia. This disclosure goes beyond current approaches that use simple microlens designs (e.g., spherical, aspherical, prismatic) with isotropic refractive power throughout their geometry to complex microlenslet designs and approaches that optimize optical function based on size, placement, and density on the primary optic. For example, having variable refractive power within one sub-lenslet can shorten the accommodative lag distance to prevent rapid elongation of the adolescent eye (myopia prevention).

[0041] The present disclosure relates to the use of compound microlenses arranged on the surface of an optical lens that have different optical functions on the off-axis relative to the central on-axis microlenslet. The compound microlenses can have multiple optical functions, for example, optical power of the central microlenslet portion and off-axis portions of the microlens providing peripheral defocus.

[0042] The sub-lenslet design allows for independent control of off-axis light to either converge or diverge relative to the shape of the back of the eye, while the on-axis portion of the lens focuses light onto the macula (central retina) of the eye, which is responsible for fine detail vision.

[0043] The shape of the microlenslet, the shape of the sublenslet, and the arrangement of one or more sublenslets around the axis of the microlenslet may be asymmetric. Advantageously, these features allow for precise, customized, asymmetric control of the light passing through each portion of the lens.

[0044] Under normal circumstances, an already myopic eye suffers from an average hyperopic defocus of approximately 0.8 diopters. This value represents the mismatch between the position of the already elongated eyeball as opposed to its original position. As a result of this defocus, the eye suffers from significant accommodative lag. The design of additional microlenses in the periphery helps reduce the significant accommodative lag suffered by an already myopic eye wearing corrective monocular vision (SV) lenses. Adding more microlenses to the peripheral, off-axis region of the microlenses and adding adjustable power (anywhere between +1 diopter and +3.5 diopters) can further reduce the lag distance. This additional reduction in lag helps bring the image closer to the eye's retina, ultimately preventing the eye from having to elongate further to accommodate the object, which, under normal circumstances, exacerbates myopia progression.

[0045] Current innovations offer greater freedom to have multiple optical powers within the same microstructure, expanding its potential effectiveness and efficacy.

[0046] Examples of compound microlenses incorporating off-axis microstructured sub-lenslets are shown in Figure 4 (boomerang 401 and compound eye 403). As shown in Figure 4, the off-axis sub-lenslets can be concave 413, convex 423, or flat on the surface of each microlenslet 411, 421.

[0047] A compound microlens design may have one design for the on-axis microlenslets and several different designs for the off-axis sub-lenslets.

[0048] FIG. 5 shows a profile diagram of an on-axis microlenslet according to an exemplary embodiment of the present disclosure. The on-axis microlenslet design can be one of the following shapes: spherical 501, 503, aspheric, prismatic (curved) 505, (conventional) 507, cylindrical, toric, spherotoric, or other known optical designs. FIG. 6 shows a profile diagram of an off-axis sub-lenslet according to an exemplary embodiment of the present disclosure. The off-axis sub-lenslet 423 can be one of any microlenslet shape: spherical 601, angled spherical 603, curved prism 605, spherical prism 607, or conventional prism 609. However, the off-axis sub-lenslets vary in i) position around the on-axis shape (left, right, top, and bottom portions of the on-axis microlenslet from the viewer's perspective viewing the image), ii) shape size, iii) radius of curvature, iv) prism tilt, v) overall quadrant of the eye lens, and other locations. There may be any number of sub-lenslets, and the sub-lenslets may be arranged in pairs (e.g., 2, 4, 6, etc.) or independently (e.g., 1, 3, 5, 7, etc.). The sub-lenslets may be arranged opposite each other on the microlenslet, in a pattern, or randomly.

[0049] 7A-7I show three-dimensional perspective views of on-axis microlenslets or off-axis sublenslets according to exemplary embodiments of the present disclosure. The on-axis microlenslet designs or off-axis sublenslets can be one of the following shapes: spherical 701 in FIG. 7A, partial cylinder 703 in FIG. 7B, aspheric 705 in FIG. 7C, aspheric 717 in FIG. 7H, aspheric 719 in FIG. 7I, prism (curved) 707 in FIG. 7D, prism (traditional) 709 in FIG. 7E, quarter cylinder 711 in FIG. 7F, torus or other known optical designs 715 in FIG. 7G. The microlenslets can have diameters ranging from about 0.25 mm to 2 mm or less and heights ranging from about 1 to 5 microns.

[0050] 8A, 8B, and 8C are diagrams illustrating an example of a compound microlens according to an exemplary embodiment of the present disclosure. The example compound microlens in FIG. 8A has a central on-axis shape 801 that is spherical, and sub-lenslet shapes 803 that are also spherical. Looking at the cross section of this microlens, the off-axis sub-lenslet structures 803 can be convex spherical, concave spherical, prism, or other common optical shapes including spheres, cylinders, tori, prisms, or flat prisms, as well as other geometric shapes, such as parabolas, hyperbolas, pseudospheres, and tractricoidal cones.

[0051] There are many potential causes of dizziness, including inner ear infections, migraines, Meniere's disease, BPPV, etc. Eye care professionals are just beginning to investigate many vision-related health issues; for example, certain light-blocking lenses can help alleviate migraines (in general) and migraine-associated dizziness. Also, patients with dizziness caused by visual stimuli, including shifting, tilting, overuse, and disorientation of the visual field, may be helped by specially adapted lenses that can reduce / eliminate the visual stimuli that trigger the dizziness (e.g., blocking peripheral light, changing direction, or defocusing).

[0052] By choosing the appropriate compound microlens design, the mechanism of myopia prevention, vertigo prevention, or any other visual health related condition can be optimized by adding microstructures to the periphery of the main structure.

[0053] Compound microlenses can be used to create customized lens designs for each wearer by modifying compound microlenses that incorporate off-axis microstructure sub-lens designs and placing them on custom eyewear.

[0054] (1) A spectacle lens comprising a plurality of compound microlenses arranged in a pattern, wherein at least one compound microlens of the plurality of microlenses comprises an on-axis microlenslet and at least one off-axis sub-lenslet disposed on the on-axis microlenslet, and the at least one off-axis sub-lenslet has a different optical function than the on-axis microlenslet.

[0055] (2) The eyeglass lens of (1), wherein at least one off-axis sub-lenslet has a different shape than the on-axis micro-lenslet.

[0056] (3) The eyeglass lens of (1) or (2), wherein a central portion of the on-axis microlenslet provides optical power and at least one off-axis sub-lenslet provides peripheral defocus.

[0057] (4) The spectacle lens according to any one of (1) to (3), wherein the on-axis microlenslet is spherical and at least one off-axis sub-lenslet is spherical.

[0058] (5) The spectacle lens according to any one of (1) to (4), wherein the height of the on-axis microlenslets is 2 microns or less.

[0059] (6) A spectacle lens according to any one of (1) to (5), wherein two sub-lenslets of at least one off-axis sub-lenslet are respectively arranged on the left and right sides of the on-axis micro-lenslet.

[0060] (7) A spectacle lens according to any one of (1) to (6), wherein three sub-lenslets of at least one off-axis sub-lenslet are arranged at the vertices of a triangular arrangement around the on-axis micro-lenslet.

[0061] (8) A spectacle lens according to any one of (1) to (7), wherein four sub-lenslets of at least one off-axis sub-lenslet are arranged on different opposite sides of the periphery of the on-axis micro-lenslet.

[0062] (9) The spectacle lens according to any one of (1) to (8), wherein the on-axis microlenslet is spherical and at least one off-axis sub-lenslet is concave spherical.

[0063] (10) The spectacle lens according to any one of (1) to (9), wherein the on-axis microlenslets are one of spherical, aspherical, prismatic, cylindrical, toric, hemispherical, and semi-cylindrical.

[0064] (11) The spectacle lens according to any one of (1) to (10), wherein at least one off-axis sub-lenslet is one of a convex spherical surface, a concave spherical surface, and a prismatic shape.

[0065] (12) The spectacle lens according to any one of (1) to (11), wherein at least one of the plurality of off-axis sub-lenslets has a different shape.

[0066] (13) A spectacle lens according to any one of (1) to (12), wherein a plurality of composite microlenslets are arranged in one of four quadrants of the spectacle lens.

[0067] (14) The eyeglass lens according to any one of (1) to (13), wherein a plurality of compound microlenses are arranged so that the pattern is a ring pattern.

[0068] (15) The eyeglass lens according to (14), wherein the ring pattern is a plurality of concentric rings.

[0069] Numerous modifications and variations of the present invention are possible in light of the above teachings, and it is therefore to be understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

Claims

1. 1. A spectacle lens comprising a plurality of compound microlenses arranged in a pattern, At least one of the plurality of compound microlenses comprises: On-axis microlenslets, and at least one off-axis sub-lenslet disposed on a surface of the on-axis microlenslet; Including, the at least one off-axis sub-lenslet has a different optical function than the on-axis micro-lenslet; An eyeglass lens, wherein the shape of the sub-lenslets and / or the arrangement of the at least one sub-lenslet around the axis of the on-axis microlenslet are asymmetric, the axis meaning an optical axis passing through the optical center of the compound microlens.

2. The spectacle lens of claim 1 , wherein the at least one off-axis sub-lenslet has a different shape than the on-axis micro-lenslet.

3. The spectacle lens of claim 1 or 2, wherein a central portion of the on-axis microlenslet provides optical power and the at least one off-axis sub-lenslet provides peripheral defocus.

4. The spectacle lens of any one of claims 1 to 3, wherein the on-axis microlenslet is spherical and the at least one off-axis sub-lenslet is spherical.

5. The spectacle lens of any one of claims 1 to 4, wherein the height of the on-axis microlenslets is 2 microns or less.

6. The spectacle lens of any one of claims 1 to 5, wherein two sub-lenslets of the at least one off-axis sub-lenslet are respectively disposed at two different positions on the on-axis micro-lenslet.

7. The spectacle lens of any one of claims 1 to 6, wherein three sub-lenslets of the at least one off-axis sub-lenslet are arranged at the vertices of a triangular arrangement around the on-axis micro-lenslet.

8. The spectacle lens of any one of claims 1 to 7, wherein four of the at least one off-axis sub-lenslet are arranged on different opposite sides of a periphery of the on-axis microlenslet.

9. The spectacle lens of any one of claims 1 to 8, wherein the on-axis microlenslet is spherical and the at least one off-axis sub-lenslet is concave spherical.

10. The spectacle lens of any one of claims 1 to 9, wherein the on-axis microlenslets are one of spherical, aspherical, prismatic, cylindrical, toric, hemispherical, and semi-cylindrical.

11. The spectacle lens of any one of claims 1 to 10, wherein the at least one off-axis sub-lenslet is one of a convex spherical surface, a concave spherical surface, and a prismatic shape.

12. The spectacle lens of any one of claims 1 to 11, wherein the at least one off-axis sub-lenslet comprises at least two off-axis sub-lenslets having different shapes.

13. The spectacle lens according to any one of claims 1 to 12, wherein the plurality of compound microlenses are arranged in one of four quadrants of the spectacle lens.

14. The spectacle lens according to any one of claims 1 to 13, wherein the plurality of compound microlenses are arranged such that the pattern is a ring pattern.

15. The spectacle lens of claim 14 , wherein the ring pattern is a plurality of concentric rings.

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