Stationery

Abstract

The invention discloses stationery. The stationery comprises a stationery body, at least one lens is arranged on the stationery, and diopter values and / or types of all the lenses are directly or indirectly marked on the stationery. The lens is made of a flexible, semi-rigid or rigid transparent high polymer material; the stationery body and the lens are integrated or split, or part of the lens is split; and the split lens is coupled with the stationery body into a whole through the coupling mechanism. The lens for detecting the eye diopter in the ophthalmology department is combined with stationery, the diopter value or the diopter value and the type of the lens are marked on the lens, and a simple tool which can be daily used by teenagers and children and is used for finding myopia and recognizing myopia diopter changes is provided.

Description

Technical Field

[0001] The present invention relates to a stationery item, and more particularly to a stationery item with a lens and a lens diopter value. Background Art

[0002] Myopia has become the disease with the highest incidence rate endangering the eye health of teenagers at present. With the widespread use of electronic products, the trend of myopia onset at a younger age is obvious, and some children even start to be nearsighted in kindergarten. At the same time, parents are often unaware of their children's myopia onset, resulting in a large number of myopias not being detected in the early stage. By the time it is discovered, the myopia has become very obvious.

[0003] In addition, for some children who have already worn glasses, it is still very difficult for them to notice the deepening of myopia. A pair of glasses usually needs to be worn for 1 - 2 years, and they will only change the glasses when the deepening of myopia becomes obvious again. Wearing glasses with an inappropriate diopter will accelerate the progression of myopia, and children and parents who have already worn glasses are prone to relax their vigilance about the further deepening of myopia psychologically, resulting in the harm of myopia increasing unconsciously.

[0004] Existing optometry examination equipment is developed for the use needs of institutions such as hospitals, optometry centers or eyewear stores, including equipment such as lens boxes, streak retinoscopes, comprehensive optometers, autorefractors, etc. The detection of patients' eye refractive problems currently requires going to specialized institutions such as hospitals and eyewear fitting centers. There is still a lack of a detection tool on the market that allows patients to independently detect and dynamically observe the refractive state of the eyes at any time. Summary of the Invention

[0005] The purpose of the present invention is to provide a simple tool for teenagers and children to use daily to detect myopia and identify changes in myopia diopter.

[0006] Stationery is an essential tool for teenagers and children to study. Combining the lens for ophthalmic detection of eye diopter with stationery and marking the diopter value, or the diopter value and type, of the lens will enable the functions of detecting myopia and identifying myopia at any time and place.

[0007] The present invention provides a stationery, comprising: a stationery body, 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 lens is made of a flexible, semi-rigid or rigid transparent polymer material; the stationery body and the lens are integrated or separated, or some lenses are separated; the separated lenses are coupled to the stationery body through a coupling mechanism to form an integral body. 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 integral arrangement and combination include spherocylindrical lenses, toric lenses, crossed cylinders, spherical prism combination lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral retinal defocus lenses, multi-point myopia defocus lenses, Fresnel lens sheets, microlens array lenses, concentric zone cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses.

[0008] In some embodiments, astigmatism axis marks are marked on the periphery or the outer periphery of the lens on the stationery.

[0009] In some embodiments, axial values are arranged on the outer periphery of the astigmatism axis marks of the stationery.

[0010] In some embodiments, cylindrical lens axis marks are marked on the periphery of the cylindrical lens on the stationery.

[0011] In some embodiments, all lenses on the stationery are negative lenses.

[0012] In some embodiments, the diopter range of the only negative lens on the stationery is from -0.25D to -1.00D.

[0013] In some embodiments, the stationery is a measuring ruler, a bookmark or a pen.

[0014] In some embodiments, the stationery is a stationery film made of a flexible material.

[0015] In some embodiments, the lens of the stationery film or 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 combination lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral retinal defocus lenses, multi-point myopia defocus lenses, Fresnel lens sheets, microlens array lenses, concentric zone cylindrical lenses, highly aspherical microlenses, and peripheral retinal imaging contrast reduction lenses.

[0016] In some embodiments, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The illustrative 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:

[0018] Figs. 1A to 1D are schematic views showing a first embodiment of the stationery according to the present invention, which is a stationery in the form of a measuring ruler.

[0019] Fig. 2 is a schematic view showing a second embodiment of the stationery according to the present invention, which is a stationery in the form of a bookmark.

[0020] Figs. 3A and 3B are schematic views showing a third embodiment of the stationery according to the present invention, which is a stationery in the form of a pen cap.

[0021] Figs. 4A to 4C are schematic views showing a fourth embodiment of the stationery according to the present invention, which is a stationery in the form of a stationery film.

[0022] Figs. 5A to Figure 5 C are schematic views showing another embodiment of the stationery in the form of a stationery film.

[0023] Figs. 6A to Figure 6 C are schematic views showing another embodiment of the stationery in the form of a stationery film.

[0024] Figs. 7A to Figure 7 C are schematic views showing a fifth embodiment of the stationery according to the present invention, which is a stationery in the form of a combination of a stationery film and a bookmark. DETAILED DESCRIPTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] In the following description and the appended claims, the terms "comprising", "including", "having", etc. are used, and these terms should be understood as open-ended, intended to include the listed features, but not excluding the possibility of the existence of other features.

[0027] 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 the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] Refraction measurement is a necessary means to determine the refractive power of the eyes of adolescents and children. The most commonly used lenses for refraction measurement are lenses with different refractive powers. By placing lenses with different refractive power values in front of the eyes and having the patient independently judge the clarity of the visual targets on the visual acuity chart, the refractive power value of the eyes is finally determined. This process is called subjective refraction measurement.

[0029] Among existing stationery, some are provided with magnifying glasses and concave lenses for assisting in close-range reading or work. These lenses are not set for measuring the refractive state of the eyes at a distance, and moreover, these lenses do not indicate the refractive power value and / or lens type at all, and simply cannot achieve quantitative detection of the refractive state of the eyes when looking at a distance.

[0030] The present invention combines the lenses for refraction measurement with the stationery necessary for students, enabling adolescents and children to obtain a simple tool for independently judging the refractive state of their eyes, which will greatly improve their perception of the myopic state of the eyes and help the user to take corresponding myopia control measures.

[0031] All lenses combined with the stationery directly or indirectly indicate their refractive power values and / or types. Therefore, this stationery can achieve qualitative and quantitative judgments of refractive errors. If the refractive power value of the lens is not marked on the stationery, no quantitative judgment can be achieved.

[0032] The direct marking of diopter values means marking the lenses on stationery in the same way as ophthalmic optometry lenses, such as -1.00D, -1.00DC, etc. The indirect marking method can use some serial numbers, symbols or graphics to replace the diopter marking method of lenses used in ophthalmology. For example, -1, -2, -3 are used to represent -0.50D, -1.00D, -1.50D respectively, or I, II, III, etc. are used. However, for the indirect marking method to enable users to understand the actual diopter value of the lens, additional explanations are required, such as explaining the correspondence between the alternative marking method and the actual diopter value in the manual.

[0033] The lenses on the stationery in the present invention can be made of flexible, semi-rigid or rigid transparent polymer materials. The transparent polymer materials are suitable for molding and injection molding processes, enabling mass production and use of such stationery, thereby reducing the product cost and improving economy. The stationery body can be made of the same or different materials as the lens.

[0034] The lens of the stationery in the present invention is integral with or separated from the stationery body, or some of the lenses are separated; the separated lenses are coupled to the stationery body through a coupling mechanism to form an integral body. In the embodiments as Figure 1 shown, there are multiple lenses on the stationery, all of which are spherical lenses, and different lenses have different diopter values. Among them, 5 lenses are integrally formed with the stationery body, and the last lens is separated from the stationery body. In another embodiment, all the lenses on the stationery are integral with the stationery body. In another embodiment, the stationery body on the stationery is integral, and all the lenses and the stationery body are separated. In the embodiments as Figure 5 shown in FIGS. A to 5C, the stationery is a stationery film, the lens of the stationery film is separated from the stationery body, the stationery body is a whole film, and the separated lens of the stationery film is attached to the stationery body. The separated lens has the best flexibility and is easy to combine with other lenses without being restricted by the stationery body. The cylindrical lens used for detecting astigmatism needs to be adjusted axially according to each patient's eyes, so it can best achieve its function when separated from the stationery body.

[0035] The coupling mechanism in the present invention refers to a mechanism for connecting the lens and the stationery body of the same stationery, or a mechanism for connecting the whole and / or part of different stationeries. The coupling mechanism can combine different wholes or parts together to achieve coordinated work. The coupling mechanism can include various different types of connection methods, such as mechanical coupling methods like bolt connection, snap connection, slide rail connection, etc., physical coupling methods like elastic force, electrostatic adsorption, molecular force, magnetic force, atmospheric pressure, etc., or chemical coupling methods like chemical molecular bonds of non-permanent adhesives.

[0036] The coupling method of the coupling mechanism can be direct coupling or indirect coupling. Direct coupling means that there is a direct connection between the lens of the stationery and the stationery body, or between the whole and / or part of different stationery. Indirect coupling means that the aforementioned objects are not directly connected, but are respectively connected to the same carrier, which makes the two or more objects become an integral whole after being connected. It should be noted that the coupling mechanism is not limited to a specific mechanical structure or connection method, but refers to a mechanism for connecting different objects to each other.

[0037] According to the principle of vector addition of lenses, different lenses can be combined to achieve new functions. The types of lenses on the stationery in the present invention 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 an integrated manner with the same or different diopters, geometric dimensions, quantities, and surface shapes; the lenses formed by integrated arrangement and combination include spherocylindrical lenses, toric lenses, crossed cylinders, spherical lens prism combinations, 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. The main uses of these functional lenses are for the correction of refractive errors and the control of myopia. Applying them to detection can allow users to understand the characteristics of different lenses and provide references for glasses fitting.

[0038] The lenses of different stationery or the split lenses and integrated lenses on the same stationery can also be combined in a superimposed manner. The split lenses are convenient to be combined with other integrated lenses or other split lenses on the stationery body in a superimposed manner, so as to obtain combined lenses with different diopters and functions. The overall diopter value of the combined lens can be known by vector addition of the diopter values of different lenses.

[0039] Astigmatism is a very common type of refractive error. Astigmatism has the characteristic of a vector. The detection of astigmatism requires the use of an astigmatic axis marker and cylindrical lenses with different diopter values, and neither of them can be missing.

[0040] The astigmatic axis marker usually adopts the internationally common 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 it increases counterclockwise to 180° at the left horizontal position, that is, the vertical upward is 90°, and the left horizontal position is 180°.

[0041] In the embodiment as Figure 1 shown, there is an astigmatic axis marker of 180 degrees on the stationery. In this embodiment, the axial marker has a minimum interval of 5°, and 10° and 30° are marked with line segments of different lengths for distinction; in another embodiment, the astigmatic axis marker can also be 360°.

[0042] The astigmatism axis mark makes it possible for patients to have more accurate optometry and refractive detection. For patients who are not yet sure whether they have astigmatism, the astigmatism axis mark is 100% necessary.

[0043] The periphery of the astigmatism axis mark on the stationery can be marked with the astigmatism axis value, and the marking interval range of the value is 1° - 180°. In the Figure 1 embodiment shown, the axial value at the 90° position is marked outside the astigmatism axis mark to facilitate the patient to correctly use the tool, and the degree symbol "°" is omitted. In the Figure 1 embodiment shown, there are multiple astigmatism axis marks on the measuring ruler, and the angular values are marked only outside some of the axial marks, such as outside the first axial mark.

[0044] The cylindrical lenses used for detecting astigmatism include single cylindrical lenses and crossed cylindrical lenses, and the axis position of the cylindrical lens needs to be clearly marked on the cylindrical lens. The cylindrical lens needs to be rotated during the detection process to combine with the astigmatism axis mark to find the astigmatism axis position of the user's eyes. Therefore, in the present invention, the cylindrical lens can be set as a lens separated from the stationery body.

[0045] For the detection of myopia, negative lenses are required instead of positive lenses. Negative lenses are concave lenses or reducing lenses, and the marked diopter value is represented by a negative value. For the precise detection of myopia, negative lenses with different diopter values are required, including negative spherical lenses and negative cylindrical lenses. A negative lens without a marked diopter value cannot achieve quantitative detection of myopia.

[0046] The judgment of the initial onset of myopia and the deepening of myopia after glasses fitting only requires a few low-degree negative lenses, such as -0.25D, -0.50D, -0.75D, -1.00D, because myopia does not change significantly in a short period of time, and the degree of myopia deepening of most patients usually does not exceed -1.00D within one year. Therefore, the lenses with the above diopter values are sufficient to meet the needs of users to track the change of diopter.

[0047] The measuring ruler is a commonly used stationery for students. Setting lenses with different diopter values on it and marking the diopter values can allow students to independently judge the refractive state of their eyes. In the Figure 1In the embodiments shown in A to 1D, the diopter values of the lenses on the measuring ruler are -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D respectively, and the range span of the diopter is 1.50D. As shown in the figure, if the last -1.50D lens is set as a split lens, then the 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, -2.75D respectively. The existing 6 lenses can be changed into 11 lenses, and they remain in an arithmetic progression state. The total range span of the diopters reaches 2.5D. It can be imagined that if the number of split lenses on the measuring ruler is increased, more diopter values can be combined. For example, in another embodiment, a +1.50D split lens is added to the above-mentioned measuring ruler. The diopters of the lenses are -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D, +1.50D, a total of 7 lenses. Then the +1.50D lens can be further combined with the other lenses on the measuring ruler to produce +1.25D, +1.00D, +0.75D, +0.50D, +0.25D, +0.00D. In this way, the 7 lenses on the same measuring ruler can be changed into 17 diopter lenses, and both hyperopic and myopic lenses are available, which is suitable for refractive observation during the change of the patient's eyes from hyperopia to myopia. The total range span of the diopters reaches 4D. For a patient to self-test the refractive state, the 17 lenses include the lenses in the range from +1.25D to -2.75D, which is sufficient for the quantitative detection and tracking of the refractive state before and in the early stage of myopia in the patient. For the detection of higher diopters, it can be achieved by setting lenses with higher diopter values and marking the diopter values on the measuring ruler.

[0048] A bookmark is a commonly used stationery for students. By setting a negative lens on the bookmark, the bookmark can be made to have the function of evaluating eyesight when looking at a distance. In the prior art, there are only examples of setting a positive lens on the bookmark for the magnifying function when reading, and there has never been a function of setting a negative lens for eyesight detection. As Figure 2In the illustrated embodiment, four negative lenses are arranged on a bookmark integrally made of a transparent polymer material, and the diopter values are marked as -0.25D, -0.50D, -0.75D, and -1.00D respectively, which is very helpful for initially judging whether the eye to be examined has myopia and the degree of myopia. For teenagers and children who have already worn glasses, this kind of bookmark can also be used. Just attach the lenses on the bookmark to the spectacle lenses one by one and observe the visual acuity chart to compare whether the current diopter value of the glasses is sufficient. For example, if the user cannot see the visual acuity of 1.0 through the -0.25D lens when wearing glasses, and can only see the visual acuity of 1.0 on the visual acuity chart 5 meters away through the -0.50D lens, it indicates that the current myopia progression of the user may be between -0.25D and -0.50D. Since the -0.75D and -1.00D lenses increase the negative lens value beyond what the user needs, continuing to observe the visual acuity through the lenses will induce the user's accommodation, making the visual acuity seen by the user smaller and darker, but the clarity of the visual acuity cannot be significantly improved anymore.

[0049] Student pens are the most commonly used stationery by students. Negative lenses can also be set on the pens to check and detect the myopia of users. For example, in the embodiments shown in Figure 3 Figures A and 3B, there is 1 lens arranged at the end of the pen cap of the user, and the diopter is marked as -0.50D. When the user must rely on the lens on the pen to observe the visual acuity of 1.0 5 meters away to see clearly, it means that the user has myopia, or the myopia of the user who has already worn glasses has a new progression. The user can then go to a medical institution for accurate optometry and decide whether to change glasses. This is a very simple and effective method for qualitatively judging myopia.

[0050] The above 3 embodiments are only the preferred embodiments of the present invention patent. Negative lenses can also be combined with other existing stationery, such as pencil cases, correction tapes, pencil sharpeners, erasers, etc.

[0051] The present invention also provides a stationery film. Negative lenses are arranged on the film. The stationery film can be attached to a transparent stationery to enable the stationery to have the ability to detect the eye diopter. For example, when this kind of stationery film is attached to a transparent ruler, the ruler will have the diopter detection function.

[0052] The stationery film is made of a flexible polymer material, with a thickness less than 2mm, generally about 1mm, similar to a mobile phone film, and much thinner and lighter than the lenses commonly used in ophthalmology. There is no precedent for setting lenses on stationery films at present. Combining the lenses on the stationery film with other stationery can simultaneously bring out the convenience, thinness and lightness of the film, and the flexibility of the combination of the two, which has great advantages compared with the existing optometry lenses and can truly realize the personalized use of patients.

[0053] When the stationery film is attached to different stationery, it can be realized by different coupling mechanisms. For example, in Figure 5 A to Figure 5 C, Figure 6 A to Figure 6 C, Figure 7 A and Figure 7 C shown in the embodiments, the stationery film has an electrostatic adsorption force, which can make the stationery film adsorbed to other stationery, or the films can also be adsorbed to each other. In another embodiment, the stationery film can have a layer of transparent non-permanent adhesive as a coupling mechanism. The adhesive can make the film attached to other stationery, including other stationery films, and can be peeled off at any time. The non-permanence of these two attachment methods enables the replacement of the film. When the refractive power of the patient's eyes changes, the corresponding refractive power film can be replaced.

[0054] 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.

[0055] In the embodiments shown in Figure 5 A to 5C, all the lenses 2 on the stationery film and the stationery film body 1 are separate. The lens 2 is attached to the stationery film body 1 electrostatically. The surface of the two surfaces of the separate stationery film lens that adheres to the stationery body is a plane, which can make the two adhere better. The other surface is concave in the case of a negative lens and convex in the case of a positive lens, that is, the two surfaces of the lens are respectively plano-concave or plano-convex designs.

[0056] Since the cylindrical lens used to measure astigmatism has the characteristic of a vector, the meridian direction of the cylindrical lens for each patient is personalized. Therefore, the separate design of the cylindrical lens on the stationery film and the stationery film body can facilitate the personalized needs of patients during use. The cylindrical lens on the stationery film can be separated from the stationery film body during use and attached to the spherical lens of another stationery according to the meridian direction of the patient's own eyes, and the two can jointly combine the effect of a spherical-cylindrical combined lens.

[0057] In the embodiments shown in Figure 6 A to 6C, the lens 2 on the stationery film and the stationery film body 1 are separate, and the two are jointly attached to the two-layer flexible protective layer coupling mechanism 4 with electrostatic adsorption force. The flexible protective layer carries and fixes the film, making it a whole.

[0058] In another embodiment, some of the lenses on the stationery film and the stationery film body are integrated, and some are separate, and the two are jointly attached to the same protective layer.

[0059] In the embodiments shown in Figure 5In the embodiments shown in FIGS. A to 5C, the lenses 2 on the stationery film and the stationery film body 1 are both separate. All the lenses 2 are single cylindrical lenses, and an astigmatic axis mark is provided around the first cylindrical lens. In another embodiment, all the lenses on the film are crossed cylindrical lenses. In another embodiment, all the lenses on the film are spherical-cylindrical combined lenses.

[0060] The lenses of the stationery film can be arbitrarily combined with the lenses of other stationery described in claims 1-8 to achieve changes in diopter and lens functions. The design of the functional lens is to superimpose a multifocal progressive lens, a microlens array, an annular lens array, or a toric lens concentric circle array, etc. on a single-focus lens such as a spherical lens. They are usually the design features of different functional lenses. These superimposed design features can be separately set on the stationery film. The change in diopter of these designs is usually very limited. If such a stationery film is combined with other stationery, it can not only allow patients to experience different designs, but also greatly reduce the number of lenses compared to the integrated form of the two, so as to better achieve personalized use.

[0061] The stationery film can be further prefabricated on any of the stationery described in 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. As Figure 7 As shown in FIGS. A to 7C, all the lenses 2 on a stationery film are cylindrical lenses, and the diopter of the cylindrical lenses is -1.00DC. It is prefabricated and attached to the front surface of a bookmark formed integrally by electrostatic adsorption. The axis directions of the cylindrical lenses are all 80°. At the same time, a film with a spherical lens diopter of +1.00D on its surface is prefabricated and attached to the rear surface of the measuring ruler. The three together form a combined stationery. The above stationery is personalized to fit the patient's eye astigmatism value of -1.00DCx80°. The current spherical lens diopter value of the combined lens on the combined stationery is the sum of the diopter of the lens of the measuring ruler and the diopter of the lens on the corresponding stationery film. Generally, the astigmatism of the patient's eyes is stable. When the myopia deepens by -1.00D, the +1.00D stationery film on the rear surface of the crossed cylinder can be torn off, and the spherical lens diopter of the measuring ruler itself can be used to continue to detect and monitor the progress of myopia. This combined stationery facilitates the personalized detection of patients and is convenient to use.

[0062] Therefore, the present invention provides a simple tool that can enable teenagers and children to evaluate myopia anytime and anywhere. Combining stationery and optometry lenses realizes the convenience and accessibility of myopia evaluation. The use of a limited number of low-degree negative lenses greatly reduces the complexity of myopia detection and makes the implementation of the present invention very easy. At the same time, this implementation method also has good economy and can benefit a large group of teenagers and children.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

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 the 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 of the 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 include spherocylindrical lenses, toric lenses, crossed cylinders, spherical prism combination 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, characterized in that, An astigmatism axis mark (5) is marked on the periphery or the outer periphery of the lens on the stationery.

3. The stationery according to claim 1, characterized in that, Axial values (6) are arranged on the outer periphery of the astigmatism axis mark of the stationery.

4. The stationery according to claim 1, wherein, 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 the 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, characterized in that, The stationery is a measuring ruler, a bookmark or a pen.

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

9. The stationery according to claim 8, wherein The stationery film or the lenses of the stationery film and the stationery or the lenses 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 combination 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, wherein, 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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