Stationery

Abstract

The utility model 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 utility model relates to a stationery, in particular to a stationery with a lens and a lens diopter value. Background Art

[0002] Myopia has become the disease with the highest incidence rate that endangers the eye health of teenagers. With the widespread use of electronic products, myopia is becoming more common at a younger age, and some children even develop myopia in kindergarten. At the same time, parents often become aware of the onset of myopia in their children later, resulting in a large number of myopia not being discovered in the early stages, and by the time it is discovered, the myopia has already become very obvious.

[0003] In addition, for some children who have already worn glasses, it is still difficult for them to detect the worsening of myopia. They usually wear a pair of glasses for 1-2 years and only change glasses when myopia worsens again. Wearing glasses with inappropriate refractive power will accelerate the progression of myopia, and children and parents who have already worn glasses are more likely to relax their vigilance against further worsening of myopia, causing the harm of myopia to worsen unknowingly.

[0004] Existing optometry equipment is developed for the use needs of hospitals, optometry centers or optical shops, including lens boxes, mirror strings, comprehensive ophthalmometers, automatic ophthalmometers, etc. At present, the detection of patients' eye refraction problems can only be achieved in hospitals, optical centers and other specialized institutions. There is still a lack of a detection tool on the market that patients can test themselves and dynamically observe the refractive state of their eyes at any time. Utility Model Content

[0005] The utility model aims to provide a simple tool which can be used daily by teenagers and children and is used to discover myopia and identify the change of myopia diopter.

[0006] Stationery is an essential tool for learning for teenagers and children. Combining lenses for ophthalmic testing of eye refraction with stationery and marking the refractive value, or the refractive value and type, on the lenses will make it possible to detect and identify myopia anytime and anywhere.

[0007] The utility model 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 lens is made of 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 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 and combined in one body with the same or different diopter, geometric size, quantity and surface shape; the lenses arranged and combined in one body 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.

[0009] In some embodiments, the perimeter 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 other stationery or the lens combination of stationery described in the utility model 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, the stationery film is further prefabricated onto other stationery described in the present invention. The number of prefabricated stationery films may be 1 layer, 2 layers or more. 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 the present 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 on 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. Figure 1 A is a top view of the measuring ruler. Figure 1 B is the right side view of the measuring ruler. Figure 1 C is a right side view of the split lens coupled to the measuring ruler body. Figure 1 D is a front view of the measuring ruler.

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

[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. Figure 3 A is a top view of the pen cap. Figure 3 B is a right side view of the 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. Figure 4 A is a top view of the stationery film. Figure 4 B is the right side view of the stationery film. Figure 4 C is a front view of the stationery film.

[0023] Figure 5A to Figure 5 C is a schematic diagram showing another embodiment of the stationery in the form of a stationery film. Figure 5 A is a top view of the stationery film. Figure 5 B is the right side view of the stationery film. Figure 5 C is a front view of the stationery film.

[0024] Figure 6A to Figure 6 C is a schematic diagram showing another embodiment of the stationery in the form of a stationery film. Figure 6 A is a top view of the stationery film. Figure 6 B is the right side view of the stationery film. Figure 6 C is a front view of the stationery film.

[0025] Figure 7A to Figure 7C is a schematic diagram showing a fifth embodiment of the stationery according to the utility model, which is a stationery in the form of a combination of a stationery film and a bookmark. Figure 7 A is a top view of the stationery film and bookmark combination. Figure 7 B is the right side view of the stationery film and bookmark combination. Figure 7 C is a front view of the stationery film and bookmark combination. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] In the following description and the appended claims, the terms “including,” “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 utility model. 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 technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[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 of different refractive powers. By placing lenses of different refractive power values ​​in front of the eyes, the patient independently judges the clarity of the sight marks on the eye chart and ultimately determines the refractive power value of the eyes. This process is called subjective optometry.

[0030] Some of the existing stationery items are equipped with magnifying glasses and concave lenses to assist in close reading or working. These lenses are not designed to measure the refractive state of the eyes in the distance vision state, and these lenses are not marked with the diopter value and / or lens type, and it is impossible to achieve quantitative detection of the refractive state of the eyes in the distance vision state.

[0031] The utility model combines the lens for optometry with the necessary stationery for students, so that young children can obtain a simple tool for independently judging the refractive state of the eyes, which will greatly improve their perception of the myopia state of the eyes and help users to take corresponding myopia control measures.

[0032] All lenses combined with the stationery are directly or indirectly marked with their diopter value and / or type, so that the stationery can make qualitative and quantitative judgments on refractive errors. If the diopter value of the lens is not marked on the stationery, no quantitative judgment can be made.

[0033] Direct marking of the diopter value means marking the lens on the stationery in the same way as ophthalmic trial lenses, such as -1.00D, -1.00DC, etc. Indirect marking can use some serial numbers, symbols or graphics to replace the diopter marking method used in ophthalmology, such as -1, -2, -3 to represent -0.50D, -1.00D, -1.50D, or I, II, III, etc. However, indirect marking requires additional explanations in order to let users understand the actual diopter value of the lens, such as the corresponding relationship between the alternative marking method and the actual diopter value in the manual.

[0034] The lens on the stationery of the utility model can be made of a flexible, semi-rigid or rigid transparent polymer material. The transparent polymer material is suitable for molding and injection molding processes, so that the stationery can be mass-produced and used, thereby reducing the cost of the product and improving economic efficiency. The stationery body can be made of the same or different materials as the lens.

[0035] The lens of the stationery in the utility model is integrated with or separated from the stationery body, or part of the lens is separated; the separated lens is coupled to the stationery body through a coupling mechanism. Figure 1 In the embodiment shown, there are multiple lenses on the stationery, all of which are spherical lenses, and different lenses have different diopter values. Five of the lenses are formed integrally with the stationery body, and the last lens is separate from the stationery body. In another embodiment, all the lenses on the stationery are integrally formed with the stationery body. In another embodiment, the stationery body on the stationery is integrally formed, and all the lenses are separate from the stationery body. Figure 5In the embodiments shown in A to 5C, the stationery is a stationery film, the lens of the stationery film is separate from the stationery body, the stationery body is a whole film, and the separate stationery film lens is attached to the stationery body. The separate lens has the best flexibility and is easy to combine with other lenses without being restricted by the stationery body. The cylindrical lens used to detect astigmatism needs to be adjusted axially according to the eyes of each patient, so it can best realize its function by being separated from the stationery body.

[0036] The coupling mechanism in the utility model 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 parts of different stationery, and the coupling mechanism can combine different wholes or parts together to achieve cooperative work. The coupling mechanism can include various types of connection methods, such as mechanical coupling methods such as bolt connection, snap connection, slide rail connection, physical coupling methods such as elastic force, electrostatic adsorption, molecular force, magnetic force, atmospheric pressure, or chemical coupling methods such as chemical molecular bonds of non-permanent adhesives.

[0037] The coupling mechanism can be directly coupled or indirectly coupled. Direct coupling refers to the direct connection between the lens of the stationery and the stationery body, or the whole and / or part of different stationery. Indirect coupling means that the aforementioned objects are not directly connected, but are respectively connected to a same carrier, which connects the two or more objects into a whole. It should be noted that the coupling mechanism is not limited to a specific mechanical structure or connection method, but 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 stationery in the utility model include at least one of spherical lenses, aspherical lenses, cylindrical lenses, prisms and 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 purpose 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 of different stationery or split lenses and one-piece lenses on the same stationery can also be combined in a superimposed manner. Split lenses can be conveniently combined with other one-piece lenses or other split lenses on the stationery body in a superimposed manner to obtain combined lenses with different diopters and functions. The overall diopter value of the combined lens can be obtained by adding the diopter value vectors of different lenses.

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

[0041] The axial marking of astigmatism 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, 90° vertically above and 180° on the left side.

[0042] In such Figure 1 In the embodiment shown, 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 value can be marked on the outer periphery of the astigmatism axis mark on the stationery, and the marking interval of the value ranges from 1° to 180°. Figure 1 In the embodiment shown, the axial value of the 90° position is marked on the outside of the astigmatism axial mark to facilitate the patient to use the tool correctly, and the degree symbol "°" is omitted. Figure 1 In the illustrated embodiment, there are a plurality of astigmatism axial marks on the measuring ruler, and angle values ​​are indicated only outside some of the axial marks, such as outside the first axial mark.

[0045] The cylindrical lens used to detect astigmatism includes a single cylindrical lens and a cross cylindrical lens, 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 find the astigmatism axis position of the user's eyes in combination with the astigmatism axis mark. Therefore, in the utility model, the cylindrical lens can be set as a lens separate from the stationery body.

[0046] Myopia detection requires the use of negative lenses, not positive lenses. Negative lenses are concave lenses or reducing lenses, and their diopter values ​​are indicated by negative values. Accurate detection of myopia requires the use of negative lenses with different diopter values, including negative spherical lenses and negative cylindrical lenses. Negative lenses without diopter value indications cannot achieve quantitative detection of myopia.

[0047] To judge the initial onset of myopia and the further worsening of myopia 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 worsening in most patients within a year usually does not exceed -1.00D. Therefore, lenses with the above refractive values ​​are sufficient to meet the user's needs to track refractive changes.

[0048] The measuring ruler is a stationery commonly used by students. Setting lenses of different diopter values ​​on it and marking the diopter values ​​can allow students to independently judge the refractive state of their eyes. Figure 1 In the embodiments shown in A to 1D, the diopter values ​​of the lenses on the measuring ruler are respectively -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D, and the diopter range spans 1.50D. As shown in the figure, the last -1.50D lens is set as a split lens, and the split lens and 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 6 lenses can be changed into 11 lenses, and the arithmetic progression state is maintained, and the total diopter range spans 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, and the refractive powers of the lenses are respectively -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D, +1.50D, a total of 7 lenses. 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, +0.00D. In this way, the 7 lenses on the same measuring ruler can be changed into lenses with 17 diopters, and have both hyperopia and myopia lenses, which are suitable for refractive observation of patients' eyes during the change process from hyperopia to myopia, and the total range of refractive power reaches 4D. For a patient's self-test of refractive status, 17 lenses include lenses in the range of +1.25D to -2.75D, which is sufficient for quantitative detection and tracking of the patient's refractive status before and in the early stages of myopia. For detection of higher refractive powers, it can be achieved by setting lenses with higher refractive power values ​​on the measuring ruler and marking the refractive power value.

[0049] Bookmarks are a common student stationery. If a negative lens is set on a bookmark, it can be used to evaluate vision when looking far away. In the prior art, there is only an example of setting a positive lens on a bookmark for the magnification function when reading, and there has never been a negative lens set for vision testing. Figure 2 In the illustrated embodiment, four negative lenses are arranged on a bookmark made of a transparent polymer material, and the diopter 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 have already worn 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 diopter value of the current glasses is sufficient. For example, when the user is wearing glasses, he cannot see the sight mark of 1.0 through a -0.25D lens, and can only see the sight mark of 1.0 on the eye chart 5 meters away through a -0.50D lens, which indicates that the user's current myopia progression may be between -0.25D and -0.50D. However, because -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 adjustment, making the sight mark seen by the user 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 for students. Setting a negative lens on the pen can also be used to check and detect the myopia of the user, such as in Figure 3 In the embodiments shown in A and 3B, a lens is provided at the end of the pen cap, and the diopter is marked as -0.50D. When the user has to rely on the lens on the pen to observe the 1.0 sight mark 5 meters away to see clearly, it means that the user has myopia, or the user who has been wearing glasses has a new progress in myopia. The user can go to a medical institution for accurate eye examination and decide whether to change glasses. This is a very simple and effective method for qualitatively judging myopia.

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

[0052] The utility model also provides a stationery film. A negative lens is arranged on the film. The stationery film can be attached to transparent stationery, so that the stationery has the ability to detect the diopter of the eye. For example, if the stationery film is attached to a transparent ruler, the ruler will have the diopter detection function.

[0053] Stationery films are made of flexible polymer materials with a thickness of less than 2mm, generally around 1mm, similar to mobile phone films, and much thinner and lighter than commonly used lenses in ophthalmology. There is currently no precedent for setting lenses on stationery films. Combining the lenses on stationery films with other stationery can simultaneously bring into play the convenience, thinness, and flexibility of the film, which has great advantages over existing trial lenses and can truly realize personalized use for patients.

[0054] When the stationery film is attached to different stationery, it can be achieved by different coupling mechanisms. Figure 5 A to Figure 5 C, Figure 6 A to Figure 6 C, Figure 7 A and Figure 7 In the embodiment shown in C, the stationery film has an electrostatic adsorption force, which allows the stationery film to be adsorbed onto other stationery, or the films can be adsorbed onto each other. In another embodiment, the stationery film can have a layer of transparent non-permanent adhesive as a coupling mechanism, and 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 can realize the replacement of the film. When the refractive power of the patient's eyes changes, the film of the corresponding refractive power can be replaced.

[0055] In the utility model, 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 such Figure 5 In the embodiments shown in A to 5C, all the lenses 2 on the stationery film are separate from the stationery film body 1, and the lenses 2 are attached to the stationery film body 1 in an electrostatic manner. Of the two surfaces of the separate stationery film lens, the surface attached to the stationery body is a plane, which can make the two adhere better, and the other surface is a concave surface when it is a negative lens and a convex surface when it is a positive lens, that is, the two surfaces of the lens are respectively designed to be plano-concave or plano-convex.

[0057] The cylindrical lens used to measure astigmatism has the characteristics of a vector, so the meridian direction of the cylindrical lens of each patient is personalized. Therefore, the cylindrical lens on the stationery film and the stationery film body are separated to meet the personalized needs of patients when using it. The cylindrical lens on the stationery film can be separated from the stationery film body when in use, and attached to the spherical lens of another stationery according to the meridian direction of the patient's own eyes. The two can be combined together to produce the effect of a spherical-cylindrical combined lens.

[0058] In such Figure 6In the embodiments shown in A to 6C, the upper lens 2 and the body 1 of the stationery film are separate, and the two are attached to two layers of flexible protective layer coupling mechanism 4 with electrostatic adsorption force. The flexible protective layer carries and fixes the film to form 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 such Figure 5 In the embodiments shown in A to 5C, the lens 2 on the stationery film is separated from the stationery film body 1, and all lenses 2 are single cylinders, and an astigmatism axis mark is provided around the first cylinder. In another embodiment, all lenses on the film are cross cylinders. In another embodiment, all lenses on the film are spherical cylinder combined lenses.

[0061] The lens of the stationery film can be arbitrarily combined with the lenses of other stationery described in the utility model to achieve changes in diopter and lens function. The design of the functional lens is to superimpose multifocal progressive lenses, microlens arrays, annular lens arrays, or concentric circle arrays of toric lenses on single-focus lenses, such as spherical lenses, which 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 a stationery film is combined with other stationery, it can allow patients to experience different designs and greatly reduce the number of lenses compared to the way the two are formed in one, thereby better realizing personalized use.

[0062] The stationery film can be further prefabricated onto other stationery described in the utility model. The number of prefabricated stationery films can be 1 layer, 2 layers or more. The prefabricated stationery films can be peeled off when needed. Figure 7As shown in A 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 integral 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, and 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°, and the current spherical refractive power value of the combined lens on the combination stationery is the sum of the lens refractive power of the measuring ruler and the lens refractive power on the corresponding stationery film. The astigmatism of the patient's eyes is generally stable, and when myopia deepens by -1.00D, the +1.00D stationery film on the rear surface of the string lens can be torn off, and the spherical refractive power of the measuring ruler itself can be used to continue to detect and monitor the progression of myopia. This combination stationery facilitates personalized testing for patients and is convenient to use.

[0063] Therefore, the utility model invention provides a simple tool that can enable young children to evaluate myopia anytime and anywhere. The combination of stationery and optometry lenses realizes the convenience and accessibility of myopia evaluation. The use of a limited number of low-power negative lenses greatly reduces the complexity of myopia detection, making the implementation of the utility model invention very easy. At the same time, this implementation method also has good economic efficiency and can benefit a large number of young children.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A stationery, comprising a stationery body (1), characterized in that: The stationery comprises at least one lens (2), and the diopter values ​​and / or types (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 integrated or separated, or part of the lens is separated; the separated lens is coupled to the stationery body as a whole through a coupling mechanism (4); 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 one piece with the same or different diopter, geometric dimensions, quantity and surface shape; 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 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: The periphery or outer periphery of the lens on the stationery is marked with an astigmatism axial mark (5).

3. The stationery according to claim 1, characterized in that: An axial value (6) is arranged around the astigmatism axial mark of the stationery.

4. The stationery according to claim 1, characterized in that: The periphery of the cylinder on the stationery is marked with a cylinder axis mark (7).

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, characterized in that: The only minus lenses on the stationery range in power 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, characterized in that: The stationery is a stationery film made of 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 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.

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

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