Stationery

Abstract

Provided is stationery, comprising a stationery body (1). The stationery comprises at least one lens (2), and the stationery is directly or indirectly marked with diopter values and / or types (3) of all the lenses. The lenses are made of a flexible, semi-rigid or rigid transparent high-polymer material. The stationery body and the lenses are integrated or separated, or some of the lenses are separate. By combining ophthalmic lenses for measuring eye refractive power with stationery, and marking the lenses with the diopter values and types thereof, a simple tool for daily use by teenagers and children to detect myopia and identify changes in myopic refractive power.

Description

A stationery Technical Field

[0001] The present invention relates to a stationery, in particular to a stationery with a lens and a lens diopter value. Background Art

[0002] Myopia has become the most common eye disease affecting adolescents. With the widespread use of electronic devices, myopia is occurring at younger ages, with some children even developing it in kindergarten. Furthermore, parents often become unaware of the onset of myopia in their children only after it has developed. This results in a significant number of cases remaining undetected until their symptoms are already very obvious.

[0003] Furthermore, some children who already wear glasses may not notice the worsening of their myopia, and they typically wear a pair of glasses for one to two years, only changing them when the myopia becomes noticeable again. Wearing glasses with inappropriate diopters can accelerate the progression of myopia, and children and parents who already wear glasses are more likely to relax their vigilance against further worsening of myopia, causing the harmful effects of myopia to worsen unnoticed. Technical issues

[0004] Existing optometry equipment, including lens cases, lens strings, phoroptors, and automated refractors, is designed for use in hospitals, optometry centers, and optical shops. Currently, testing for refractive issues requires visits to specialized facilities like hospitals and optometry centers. There is a lack of a tool on the market that allows patients to independently monitor their refractive status over time. Technical Solutions

[0005] The purpose of the present invention is to provide a simple tool for daily use by teenagers and children for detecting myopia and identifying changes in myopia refractive power.

[0006] Stationery is an essential tool for learning for teenagers and children. Combining lenses used by ophthalmologists to detect eye refractive power with stationery and marking the lenses with their refractive power values, or refractive power values ​​and types, will enable the detection and identification of myopia anytime and anywhere.

[0007] The present invention provides a stationery comprising:

[0008] The stationery body is characterized in that the stationery includes at least one lens, and the diopter value and / or type of all lenses are directly or indirectly marked on the stationery; the lenses are made of flexible, semi-rigid or rigid transparent polymer materials; the stationery body and the lenses are integrated or separated, or some lenses are separated; the separated lenses are coupled to the stationery body as a whole through a coupling mechanism. The types of lenses include at least one of spherical lenses, aspherical lenses, cylindrical lenses, prisms and lenses composed of the above-mentioned types of lenses arranged in an integrated manner with the same or different diopter, geometric dimensions, quantity and surface shape; the lenses arranged in an integrated manner include spherical-cylindrical combined lenses, toric lenses, cross-cylinder lenses, spherical-prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, retinal peripheral defocus lenses, multi-point myopia defocus lenses, Fresnel lenses, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, and lenses with reduced peripheral retinal imaging contrast.

[0009] In some embodiments, the periphery or outer periphery of the lens on the stationery is marked with astigmatism axis markings.

[0010] In some embodiments, an axial value is provided around the astigmatism axial mark of the stationery.

[0011] In some embodiments, the perimeter of the cylinder on the stationery is marked with cylinder axis markings.

[0012] In some embodiments, all lenses on the stationery are negative lenses.

[0013] In some embodiments, the only minus lens on the stationery has a diopter range of -0.25D to -1.00D.

[0014] In some embodiments, the stationery is a measuring tape, a bookmark, or a pen.

[0015] In some embodiments, the stationery is a stationery film made of a flexible material.

[0016] In some embodiments, the stationery film or the lens of the stationery film and the stationery or the lens combination of the stationery according to any one of claims 1 to 8 can form different types of combined lenses; the types of combined lenses include spherical lenses, cylindrical lenses, prisms, spherical-cylindrical combined lenses, toric lenses, cross-cylindrical lenses, spherical-prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, retinal peripheral defocus lenses, multi-point myopia defocus lenses, Fresnel lenses, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses.

[0017] In some embodiments, a stationery film is further prefabricated onto the stationery according to any one of claims 1 to 8. The number of prefabricated stationery films may be 1 layer, 2 layers, or multiple layers. The prefabricated stationery films can be peeled off when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] 1A to 1D are schematic diagrams showing a first embodiment of a stationery according to the present invention, which is a stationery in the form of a measuring ruler.

[0020] FIG. 2 is a schematic diagram showing a second embodiment of the stationery according to the present invention, which is a bookmark-type stationery.

[0021] 3A and 3B are schematic diagrams showing a third embodiment of a stationery according to the present invention, which is a stationery in the form of a pen cap.

[0022] 4A to 4C are schematic diagrams showing a fourth embodiment of a stationery according to the present invention, which is a stationery in the form of a stationery film.

[0023] 5A to 5C are schematic diagrams showing another embodiment of a stationery in the form of a stationery film.

[0024] 6A to 6C are schematic diagrams showing another embodiment of a stationery in the form of a stationery film.

[0025] 7A to 7C are schematic diagrams showing a fifth embodiment of a stationery according to the present invention, which is a stationery in the form of a combination of a stationery film and a bookmark. Modes for Carrying Out the Invention

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the following description and the appended claims, the terms "include", "comprising", "having", etc. are used and should be understood to be open-ended and intended to include the listed features but not to exclude the possibility of other features.

[0028] Unless otherwise specifically stated, the relative arrangement and numerical values ​​of the components described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0029] Optometry is a necessary means to determine the refractive power of the eyes of adolescents and children. The most commonly used lenses for optometry are different refractive powers. By placing lenses of different refractive power values ​​in front of the eyes, the patient independently judges the clarity of the visual marks on the eye chart and finally determines the refractive power value of the eyes. This process is called subjective refraction.

[0030] Some existing stationery items come with magnifying glasses and concave lenses to assist with close-up reading or work. These lenses are not designed to measure the eye's refractive state during distance vision. Furthermore, these lenses are not labeled with the diopter value and / or lens type, making it impossible to quantitatively measure the eye's refractive state during distance vision.

[0031] The present invention combines lenses for eye examinations with essential stationery for students, so that young children can obtain a simple tool for independently judging the refractive state of their eyes, which will greatly improve their perception of the myopia state of their eyes and help users to take corresponding myopia control measures.

[0032] All lenses included with the stationery are directly or indirectly marked with their diopter value and / or type. Therefore, the stationery allows for both qualitative and quantitative assessment of refractive error. If the diopter value of the lens is not marked on the stationery, no quantitative assessment can be made.

[0033] Direct marking of diopter values ​​involves labeling lenses on stationery in the same manner as ophthalmic prescription lenses, such as -1.00D, -1.00DC, etc. Indirect marking can use serial numbers, symbols, or graphics to replace the ophthalmic lens diopter markings, such as -1, -2, and -3 representing -0.50D, -1.00D, and -1.50D, respectively, or using I, II, and III. However, indirect marking requires additional explanation to ensure that users understand the actual diopter value of the lens, such as an explanation of the correspondence between the alternative markings and the actual diopter value in the instructions.

[0034] The lens of the stationery item of the present invention can be made of a flexible, semi-rigid, or rigid transparent polymer material. Transparent polymer materials are suitable for compression molding and injection molding processes, enabling mass production and use of this stationery item, thereby reducing product costs and improving economic efficiency. The stationery item body can be made of the same or different materials as the lens.

[0035] The lenses of the stationery in the present invention are either integral with or separate from the stationery body, or some of the lenses are separate; the separate lenses are coupled to the stationery body via a coupling mechanism. In the embodiment shown in Figure 1, the stationery has multiple lenses, all of which are spherical lenses, each with a different refractive power. Five of the lenses are integral with the stationery body, and the last lens is separate from the stationery body. In another embodiment, all lenses on the stationery are integral with the stationery body. In another embodiment, the stationery body is integral with the stationery body, and all lenses are separate from the stationery body. In the embodiments shown in Figures 5A to 5C, the stationery is a stationery film, the lenses of the film are separate from the stationery body, the stationery body is a single film, and the separate lenses of the film are attached to the stationery body. Separate lenses offer the greatest flexibility and are easily combined with other lenses without being restricted by the stationery body. Because the cylindrical lens used to detect astigmatism requires axial adjustment based on each patient's eye, it is best separated from the stationery body to achieve its function.

[0036] The coupling mechanism in the present invention refers to a mechanism that connects the lens and the stationery body of the same stationery item, or a mechanism that connects the entirety and / or parts of different stationery items. The coupling mechanism can combine different entirety or parts to achieve coordinated operation. The coupling mechanism can include various types of connection methods, such as mechanical coupling methods such as bolt connections, snap connections, and slide rail connections; physical coupling methods such as elastic force, electrostatic adsorption, molecular force, magnetism, and atmospheric pressure; and chemical coupling methods such as chemical molecular bonds using non-permanent adhesives.

[0037] The coupling mechanism can be direct or indirect. Direct coupling refers to the direct connection between the lens and the body of a stationery item, or between the entirety and / or parts of different stationery items. Indirect coupling means that the aforementioned objects are not directly connected, but are instead connected to a common carrier, which connects the two or more objects together to form a single unit. It is important to note that the term "coupling mechanism" does not refer to a specific mechanical structure or connection method, but rather refers to a mechanism that connects different objects to each other.

[0038] According to the vector addition principle of lenses, different lenses can be combined to achieve new functions. The types of lenses on the stationery of the present invention include spherical lenses, aspherical lenses, cylindrical lenses, prisms and at least one of the lenses composed of the above-mentioned types of lenses with the same or different refractive powers, geometric dimensions, quantities and surface shapes arranged in one piece; the lenses arranged in one piece include spherical-cylindrical combined lenses, toric lenses, cross-cylindrical lenses, spherical-prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, retinal peripheral defocus lenses, multi-point myopia defocus lenses, Fresnel lenses, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses. The main use of these functional lenses is to correct refractive errors and control myopia. Applying them to detection can allow users to understand the characteristics of different lenses and provide a reference for fitting glasses.

[0039] Lenses from different stationery items, or split and integrated lenses from the same item, can also be combined by stacking. Split lenses can be conveniently combined with other integrated or split lenses on the stationery unit itself, creating combined lenses with varying diopters and functions. The overall diopter value of the combined lens can be determined by summing the diopter values ​​of the different lenses.

[0040] Astigmatism is a very common type of refractive error. Astigmatism has vector characteristics. The detection of astigmatism requires the use of astigmatism axial markers and cylindrical lenses with different refractive values. Both are indispensable.

[0041] The astigmatism axial marking usually adopts the internationally accepted TABO astigmatism marking method. This method defines that when the observer faces the patient, the horizontal position on the right side of the observer is 0°, and increases counterclockwise to 180° on the left side, that is, the vertical upper side is 90° and the horizontal position on the left side is 180°.

[0042] In the embodiment shown in FIG1 , there is a 180-degree astigmatism axial mark on the stationery. In this embodiment, the axial mark has a minimum interval of 5°, and 10° and 30° are marked with line segments of different lengths to distinguish them. In another embodiment, the astigmatism axial mark can also be 360°.

[0043] The astigmatism axial marker makes it possible for patients to have more accurate optometry and refraction testing. For patients who are not sure whether they have astigmatism, the astigmatism axial marker is 100% necessary.

[0044] The astigmatism axis marking on the stationery can be marked with an astigmatism axis value outside the astigmatism axis marking, with the value marking intervals ranging from 1° to 180°. In the embodiment shown in Figure 1, the 90° axis value is marked outside the astigmatism axis marking to facilitate patient use of the tool, and the degree symbol "°" is omitted. In the embodiment shown in Figure 1, the measuring ruler has multiple astigmatism axis markings, and the angle value is only marked outside some of the axis markings, such as outside the first axis marking.

[0045] The lenticular lenses used for astigmatism detection include single lenticular lenses and cross lenticular lenses. The lenticular lens axis must be clearly marked on the lenticular lens sheet. During the detection process, the lenticular lens must be rotated to locate the user's eye's astigmatism axis in conjunction with the astigmatism axis markings. Therefore, in the present invention, the lenticular lens sheet can be configured as a separate lens from the stationery unit.

[0046] Testing for myopia requires the use of negative lenses, not positive lenses. Negative lenses, also known as concave or reducing lenses, have a negative diopter value. Accurately testing for myopia requires the use of negative lenses with varying diopter values, including negative spherical and negative cylindrical lenses. Negative lenses without a diopter value cannot quantitatively detect myopia.

[0047] To judge whether myopia has just occurred or has worsened after wearing glasses, only a few low-power negative lenses are needed, such as -0.25D, -0.50D, -0.75D, and -1.00D. This is because myopia will not change significantly in a short period of time, and the degree of myopia progression in most patients within a year usually does not exceed -1.00D. Therefore, lenses with the above refractive power values ​​are sufficient to meet the user's needs to track refractive power changes.

[0048] A measuring ruler is a common stationery item for students. Placing lenses of different diopter values ​​on it and marking the diopter values ​​allows students to independently determine the refractive state of their eyes. In the embodiment shown in Figures 1A to 1D, the diopter values ​​of the lenses on the measuring ruler are -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, and -1.50D, respectively, with a diopter range of 1.50D. As shown in the figure, if the last -1.50D lens is set as a split lens, this split lens and the other lenses on the measuring ruler can be combined to produce diopter effects of -1.75D, -2.00D, -2.25D, -2.50D, and -2.75D, respectively. The existing six lenses can be transformed into 11 lenses while maintaining an arithmetic progression, with a total diopter range of 2.5D. It is conceivable that by increasing the number of split lenses on the measuring ruler, more diopter values ​​can be combined. For example, in another embodiment, a +1.50D split lens is added to the above-mentioned measuring ruler, and the refractive powers of the lenses are respectively -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D, and +1.50D, for a total of 7 lenses. Then, the +1.50D lens can be further combined with other lenses on the measuring ruler to produce +1.25D, +1.00D, +0.75D, +0.50D, +0.25D, and +0.00D. In this way, the 7 lenses on the same measuring ruler can be changed into lenses with 17 diopters, and both hyperopia and myopia lenses are available, which are suitable for refractive observation of patients' eyes during the process of changing from hyperopia to myopia. The total refractive power range reaches 4D. For a patient's self-assessment of their refractive status, the 17 lenses, covering a range of +1.25D to -2.75D, are sufficient for quantitative detection and tracking of a patient's refractive status before and during the early stages of myopia. Testing for higher refractive powers can be achieved by setting lenses with higher refractive powers and marking the refractive power on the measuring ruler.

[0049] Bookmarks are a commonly used student stationery. If a negative lens is set on a bookmark, the bookmark can be equipped with the function of evaluating vision when looking far away. In the prior art, there are only examples of setting positive lenses on bookmarks for the magnification function when reading, and there has never been a function of setting negative lenses for vision detection. In the embodiment shown in Figure 2, four negative lenses are arranged on a bookmark made of a transparent polymer material. The refractive power values ​​are marked as -0.25D, -0.50D, -0.75D, and -1.00D respectively. This is very helpful for preliminarily judging whether the eye being examined has myopia and the degree of myopia. For teenagers and children who already have glasses, this bookmark can also be used. It is only necessary to stick the lenses on the bookmark to the glasses one by one and observe the sight mark on the eye chart to compare whether the refractive power value of the current glasses is sufficient. For example, if a user cannot see a 1.0 sight mark clearly through a -0.25D lens while wearing glasses, and can only see a 1.0 sight mark on a 5-meter-away vision chart through a -0.50D lens, this indicates that the user's current myopia progression may be between -0.25D and -0.50D. However, since -0.75D and -1.00D lenses increase the negative lens value beyond what the user needs, continuing to observe the sight mark through the lenses will induce the user's accommodation, causing the sight mark seen by the user to become smaller and darker, but the clarity of the sight mark will no longer be significantly improved.

[0050] Student pens are the most commonly used stationery items. Installing a negative lens on a pen can also be used to detect and monitor myopia. For example, in the embodiment shown in Figures 3A and 3B , a lens with a diopter marked -0.50D is located at the end of the pen cap. If the user must rely on the lens to see a 1.0 sight mark at a distance of 5 meters, it indicates that the user is myopic, or if the user already wears glasses, their myopia has progressed. The user can then visit a medical institution for an accurate eye test and decide whether to change glasses. This is a very simple and effective method for qualitatively diagnosing myopia.

[0051] The above three embodiments are only preferred embodiments of the present invention. The negative lens can also be combined with other existing stationery, such as pencil cases, correction tapes, pencil sharpeners, erasers, etc.

[0052] The present invention also provides a stationery film. A negative lens is disposed on the film. The stationery film can be attached to transparent stationery, enabling the stationery to detect eye diopter. For example, attaching the stationery film to a transparent ruler will enable the ruler to detect diopter.

[0053] Stationery screen protectors are made of flexible polymer materials, with a thickness of less than 2mm, typically around 1mm. Similar to cell phone screen protectors, they are significantly thinner and lighter than commonly used ophthalmic lenses. Currently, there's no precedent for attaching lenses to stationery screen protectors. Combining the lenses on these screen protectors with other stationery items allows for the convenience and thinness of screen protectors, combined with the flexibility of the two. This offers significant advantages over existing prescription lenses, enabling truly personalized patient experiences.

[0054] When the stationery film is attached to different stationery, it can be achieved by different coupling mechanisms. In the embodiments shown in Figures 5A to 5C, Figures 6A to 6C, Figures 7A and 7C, the stationery film has an electrostatic adsorption force, which allows the stationery film to be adsorbed onto other stationery, or the films can also be adsorbed onto each other. In another embodiment, the stationery film can have a layer of transparent non-permanent adhesive as a coupling mechanism. The adhesive can allow the film to be attached to other stationery, including other stationery films, and can be peeled off at any time. The non-permanence of these two attachment methods allows the film to be replaced. When the refractive power of the patient's eyes changes, the film of the corresponding refractive power can be replaced.

[0055] In the present invention, the stationery film body and the lens can be made of the same polymer compound material or different polymer compound materials with good optical properties, such as PMMA, PC, PVC, PET, PI, PEEK, polycarbonate, etc.

[0056] In the embodiment shown in Figures 5A to 5C , all lenses 2 on the stationery film are separate from the film body 1, with the lenses 2 attached to the film body 1 electrostatically. Of the two surfaces of the separate stationery film lenses, the surface that adheres to the stationery body is flat, allowing for better adhesion between the two. The other surface is concave for negative lenses and convex for positive lenses, meaning both surfaces are plano-concave or plano-convex, respectively.

[0057] Because the cylindrical lens used to measure astigmatism has vectorial properties, the meridian direction of the cylindrical lens is personalized for each patient. Therefore, the cylindrical lens on the stationery film is separated from the stationery film itself to meet the patient's personalized needs. The cylindrical lens on the stationery film can be separated from the stationery film itself and attached to the spherical lens of another stationery piece according to the patient's eye meridian direction. Together, the two create the effect of a combined spherical and cylindrical lens.

[0058] In the embodiment shown in Figures 6A to 6C, the upper lens 2 and the stationery film body 1 are separate components, both of which are attached to two layers of flexible protective layer coupling mechanism 4 with electrostatic adsorption. The flexible protective layer supports and fixes the film, making it a whole.

[0059] In another embodiment, part of the lens on the stationery film is integrated with the stationery film body, and part is separated, and both are attached to the same protective layer.

[0060] In the embodiment shown in Figures 5A to 5C , the lenses 2 on the stationery film are separate from the film body 1. All lenses 2 are single-cylindrical lenses, with an astigmatism axis marker located around the first lens. In another embodiment, all lenses on the film are cross-cylindrical lenses. In another embodiment, all lenses on the film are spherical-cylindrical lenses.

[0061] The lenses of the stationery film can be arbitrarily combined with the lenses of other stationery items described in claims 1-8 to achieve changes in diopter and lens function. The design of functional lenses is to superimpose multifocal progressive lenses, microlens arrays, annular lens arrays, or concentric arrays of toric lenses on single-focus lenses, such as spherical lenses. They are usually design features of different functional lenses. These superimposed design features can be set separately on the stationery film. The diopter changes of these designs are usually very limited. If such stationery films are combined with other stationery items, it can allow patients to experience different designs and can greatly reduce the number of lenses compared to the way the two are formed into one, thereby better realizing personalized use.

[0062] The stationery film can be further prefabricated onto the stationery described in any one of claims 1 to 8. The number of prefabricated stationery films can be 1 layer, 2 layers, or multiple layers. The prefabricated stationery films can be peeled off when needed. As shown in Figures 7A to 7C, all lenses 2 on a stationery film are cylindrical lenses, and the refractive power of the cylindrical lenses is -1.00DC. It is prefabricated and attached to the front surface of an integrally formed bookmark by electrostatic adsorption, and the axial direction of the cylindrical lenses is 80°. At the same time, a film with a spherical refractive power of +1.00D is prefabricated and attached to the rear surface of the measuring ruler. The three together constitute a combination stationery. The above-mentioned stationery is personalized to adapt to the astigmatism value of the patient's eyes -1.00DCx80°. The current spherical refractive power value of the combined lens on the combination stationery is the sum of the refractive power of the lens on the measuring ruler and the refractive power of the lens on the corresponding stationery film. A patient's astigmatism is generally stable. However, if myopia progresses by -1.00D, the +1.00D stationery film on the back of the lens can be removed, and the spherical refractive power of the measuring ruler can be used to continue testing and monitoring myopia progression. This combination of stationery facilitates personalized testing for patients and is easy to use. Beneficial effects

[0063] Thus, the present invention provides a simple tool that allows adolescents and children to assess myopia anytime and anywhere. The combination of stationery and prescription lenses makes myopia assessment convenient and accessible. The use of a limited number of low-power negative lenses greatly reduces the complexity of myopia testing, making the invention very easy to implement. Furthermore, this implementation method is economical and can benefit a large number of adolescents and children.

Claims

1. A stationery, comprising a stationery body (1), characterized in that, The stationery includes at least one lens (2), and the diopter value and / or type (3) of all lenses are directly or indirectly marked on the stationery; the lens (2) is made of a flexible, semi-rigid or rigid transparent polymer material; the stationery body and the lens are integral or separate, or some lenses are separate; the separate lenses are coupled to the stationery body as a whole through a coupling mechanism (4). The types of lenses include spherical lenses, aspherical lenses, cylindrical lenses, prisms, and at least one of the lenses formed by arranging and combining the above types of lenses in the same or different diopters, geometric dimensions, quantities, and surface shapes; the lenses formed by arranging and combining as a whole include spherocylindrical lenses, toric lenses, crossed cylinders, spherical prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral retinal defocus lenses, multi-point myopia defocus lenses, Fresnel lens sheets, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses.

2. The stationery according to claim 1, wherein, An astigmatic axis mark (5) is marked on the periphery or outer periphery of the lens on the stationery.

3. The stationery according to claim 1, wherein, Axial values (6) are arranged on the outer periphery of the astigmatic axis mark of the stationery.

4. The stationery according to claim 1, characterized in that, A cylindrical lens axis mark (7) is marked on the periphery of the cylindrical lens on the stationery.

5. The stationery according to claim 1, characterized in that, All lenses on the stationery are negative lenses.

6. The stationery according to claim 5, wherein, The diopter range of the only negative lens on the stationery is from -0.25D to -1.00D.

7. The stationery according to claim 1, wherein The stationery is a measuring ruler, a bookmark or a pen.

8. The stationery according to claim 1, characterized in that, The stationery is a stationery film made of a flexible material.

9. The stationery according to claim 8, characterized in that, The stationery film or the lens of the stationery film and the stationery or the lens of the stationery described in any one of claims 1-8 can form different types of combined lenses; the types of combined lenses include spherical lenses, cylindrical lenses, prisms, spherocylindrical lenses, toric lenses, crossed cylinders, spherical prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral retinal defocus lenses, multi-point myopia defocus lenses, Fresnel lens sheets, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses.

10. The stationery according to claim 8, characterized in that, The stationery film is further prefabricated on the stationery described in any one of claims 1-8. The number of prefabricated stationery films can be 1 layer, 2 layers or multiple layers, and the prefabricated stationery film can be peeled off when needed.

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