Optometry tool

Abstract

The invention discloses an optometry tool. The optometry tool comprises a lens frame body and at least one lens, and the edge of the lens and / or the lens frame body are / is provided with astigmatism axial marks; the lens is made of a flexible, semi-rigid or rigid transparent high polymer material; the lens and the lens frame body are integrated or split, or part of the lens is split; and the split lenses are coupled with the lens frame body into a whole through the coupling mechanism. By combining the lens and the astigmatism axial mark, a refractive error detection and correction tool which can be used autonomously, individually and flexibly is provided for a patient, so that the patient can find refractive error in time and track and correct the change of the refractive error in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of optometry, and particularly relates to an optometry tool that can perform optometry. Background Art

[0002] Currently, the myopia incidence rate among teenagers and children remains high, the trend of myopia at a younger age is obvious, and the incidence rate of high myopia has been increasing year by year, posing a severe challenge to human eye health. Myopia prevention and control has been listed as a public health issue by the country. Early detection of myopia and continuous follow-up of refractive changes are of great significance for the myopia prevention and control of teenagers and children. At the same time, the number of people suffering from presbyopia is increasing day by day. Presbyopia also has the characteristic of continuous dynamic refractive changes and requires continuous observation and detection.

[0003] Subjective optometry means that the patient judges the refractive state of the eye being examined subjectively according to the clarity of the visual target on the visual acuity chart through lenses with different refractive powers. Generally, the refractive power of the lens used to see the visual target of 1.0 on the visual acuity chart is taken as the optometry result. Subjective optometry enables the patient to independently examine and judge the refractive state of the eye.

[0004] Existing refractive examination devices are all developed for the use needs of institutions such as hospitals, optometry centers, or optical stores, including equipment such as lens boxes, streak retinoscopes, comprehensive optometry instruments, and autorefractors. At present, the detection of patients' eye refractive problems can only be achieved in specialized institutions such as hospitals and optometry 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 refractive error detection and correction tool that can be used independently, personalized, and flexibly by patients, so that patients can timely detect refractive errors and perform real-time tracking and correction of their changes.

[0006] The present invention provides an optometry tool, comprising: a lens frame and at least one lens, characterized in that at least one lens edge and / or the lens frame is provided with an astigmatic axis mark; the lens is made of a flexible, semi-rigid or rigid transparent polymer material; the lens and the lens frame are integral or separable, or some lenses are separable; the separable lenses are coupled to the lens frame 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 integrally arranging and combining the above types of lenses with the same or different diopters, geometric dimensions, quantities, and surface shapes; the integrally arranged and combined lenses 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.

[0007] In some embodiments, the optometry tool made of a semi-rigid or rigid transparent polymer material is a streak lens.

[0008] In some embodiments, the optometry tool made of a semi-rigid or rigid transparent polymer material is a measuring ruler.

[0009] In some embodiments, the optometry tool made of a semi-rigid or rigid transparent polymer material is a card.

[0010] In some embodiments, the card is a bookmark or a business card.

[0011] In some embodiments, the optometry tool made of a semi-rigid or rigid transparent polymer material is an independent lens with a coupling mechanism; two or more independent lenses can be coupled through the coupling mechanism, and the coupled independent lenses can be separated at any time.

[0012] In some embodiments, the lens of the independent lens can be coupled to the lens of the optometry tool described in any one of claims 2 or 3 through the coupling mechanism.

[0013] In some embodiments, the optometry tool made of a flexible transparent polymer material is a film lens.

[0014] In some embodiments, the lens of the film lens can be attached to the lens of the optometry tool described in any one of claims 1-6.

[0015] In some embodiments, the film lens is further prefabricated on a spectacle lens, and the number of prefabricated film lenses can be 1 layer, 2 layers, or multiple layers. Description of the Drawings

[0016] The accompanying 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.

[0017] Figure 1 is a schematic diagram showing a first embodiment of an optometry tool according to the present invention.

[0018] Figure 2 A to 2D are schematic diagrams showing a second embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a streak retinoscope.

[0019] Figure 3 is a schematic diagram showing a third embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a measuring ruler.

[0020] Figure 4 is a schematic diagram showing a fourth embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a bookmark.

[0021] Figure 5 is a schematic diagram showing a fifth embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a bookmark.

[0022] Figure 6 A to Figure 6 C are schematic diagrams showing a sixth embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of an independent lens.

[0023] Figure 7 is a schematic diagram showing a seventh embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a combination of independent lenses.

[0024] Figure 8 A to Figure 8 C are schematic diagrams showing an eighth embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a film-coated lens.

[0025] Figure 9 A to Figure 9 C are schematic diagrams showing another embodiment of an optometry tool in the form of a film-coated lens.

[0026] Figure 10 A to Figure 10 C are schematic diagrams showing another embodiment of an optometry tool in the form of a film-coated lens.

[0027] Figure 11 A to Figure 11 C are schematic diagrams showing a ninth embodiment of an optometry tool according to the present invention, and this embodiment is an optometry tool in the form of a combination of a film-coated lens and a streak retinoscope.

[0028] Figure 12 A and 12B are schematic diagrams showing the 10th embodiment of the optometry tool according to the present invention, which is an optometry tool in the form of a combination of a film lens and an eyeglass lens. Specific implementation method

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 limits 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 shall fall within the scope of protection of the present invention.

[0030] In the following description and the appended claims, terms such as "including", "comprising", "having", etc. are used, and it should be understood that these terms are open-ended and are intended to include the listed features, but do not exclude the possibility of the existence of other features.

[0031] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth 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 description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] The upper and lower surfaces of the optometry tool refer to the two largest surfaces among the six surfaces of the optometry tool, which are formed in pairs. The upper surface refers to the largest surface at the upper part when the optometry tool is placed horizontally, and the lower surface is the opposite surface at the lower part. The length of the optometry tool refers to its longest side, the width is the second longest side, and the height or thickness is the distance between the upper and lower surfaces of the optometry tool.

[0033] The diopter of a lens has the characteristics of a vector, with both magnitude and direction. The diopters and directions of two or more lenses can be vectorially added, which is the principle of vector addition of lenses. The principle of vector addition simplifies the optometry process, enables the combination and use of lenses of different properties, increases the flexibility of optometry and the diopter range, and significantly reduces the number of lenses required for optometry. Among the lenses commonly used in ophthalmology, the spherical lens has the same diopter in all meridian directions, while the cylindrical lens and the prism have directionality. The diopter of the cylindrical lens varies in different meridian directions, and the prism has only one diopter, but different base orientations determine different prism effects.

[0034] Spherical lenses are the most commonly used lens type in the optometry process for patients, used to determine whether the refractive error of the patient is myopia, hyperopia or presbyopia. Cylindrical lenses and prisms are used to detect astigmatism and the eye position of the patient respectively. The above three types of lenses are basic lens types. Through permutation and combination, numerous functional lenses can be obtained according to different functional requirements, such as spherical-cylindrical combined lenses, toric lenses, cross cylinders, spherical prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral retinal defocus lenses, multi-point myopia defocus lenses, Fresnel lenses, microlens array lenses, concentric annular cylindrical lenses, highly aspherical microlenses, lenses with reduced peripheral retinal imaging contrast, and so on. The optical effects of functional lenses all conform to the principle of vector addition of basic lenses. However, these functional lenses are the types of lenses that patients actually wear after glasses are prescribed. Before glasses are prescribed, patients cannot directly experience their effects, which often brings discomfort to patients when wearing glasses. Using the principle of vector addition of lenses can solve this problem. For example, place the functional characteristics of the functional lens on one lens, which usually has only a few different diopters, and place the spherical lens on another lens, which has a larger number of diopters of the spherical lens, and then combine the two for use. The combination of the two has obvious flexibility compared to the integrated lens of the two, and can significantly reduce the number of lenses.

[0035] Patients' needs for optometry are personalized. Taking myopia as an example, the refractive state and the myopia progression speed of each patient are different, so everyone has personalized needs. At the same time, the myopia progression speed of a patient within one year is limited, usually not exceeding -1.00D, and optometry lenses are usually at intervals of 0.25D. Therefore, the number of lenses required for a patient to track and measure within one year is very limited, which is also a convenient condition for realizing personalized measurement. However, these personalized needs have not been fully met by existing products.

[0036] In order to realize an optometry tool for detecting refractive errors that can be used independently, personalized and flexibly by patients, the present invention provides an optometry tool.

[0037] The present invention provides an optometry tool, comprising a lens frame and at least one lens, characterized in that at least one lens edge and / or the lens frame is provided with an astigmatic axis mark.

[0038] Astigmatism is a very important type of refractive error. The proportion of patients with astigmatism greater than or equal to 0.50D in the population is about 60%. For astigmatism greater than 0.50D, clinical correction is necessary.

[0039] Astigmatism has the characteristics of a vector, that is, it has both the magnitude of the refractive power and the meridian direction where the refractive power is located. Therefore, the detection of astigmatism requires determining both the magnitude and direction of the astigmatic refractive power. In the process of astigmatism detection, it is essential to use a cylindrical lens and an axial mark indicating the astigmatic direction. During use, the axis of the cylindrical lens needs to be rotated to the direction of the weak refractive power principal meridian of the patient's eye.

[0040] The TABO astigmatic marking method is an internationally recognized standard astigmatic axis marking method. When the observer faces the patient, the horizontal position on the observer's right side is defined as 0°, increasing counterclockwise to 180° at the left horizontal position, that is, directly above is 90°, and the left horizontal position is 180°.

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

[0042] The astigmatic 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 astigmatic axis mark is 100% needed.

[0043] The periphery of the astigmatic axis mark on the optometry tool can be marked with the astigmatic sub-axis values, and the marking interval range of the values is 1° - 180°. In the embodiment as Figure 2 shown, the axial value at the 90° position is marked outside the axial mark to facilitate the correct use of the tool by the patient, and the degree symbol "°" is omitted. In the embodiment as Figure 2 shown, there are multiple astigmatic axis marks on the streak lens, and the angular values are only marked outside some of the axial marks, such as the first axial mark.

[0044] The lens on the optometry tool in the present invention is made of a flexible, semi-rigid or rigid transparent polymer material. The transparent polymer material is suitable for molding and injection molding processes, enabling this optometry tool to be mass-produced and used, thereby reducing the product cost and improving the economy. The lens frame can be made of the same or different materials as the lens.

[0045] The lens and the lens frame of the optometry tool in the present invention are integrated or separated, or some lenses are separated; the separated lenses are coupled to the lens frame through a coupling mechanism to form an integral body. In the embodiment as Figure 2 shown, there are multiple lenses on the optometry tool, all of which are spherical lenses. Different lenses have different diopters, and the astigmatism axis marks are set on the periphery of each lens. Among them, 5 lenses and the lens frame are integrally formed, and the last lens and the lens frame are separated. In another embodiment, all the lenses and the lens frame on the optometry tool are integrated. In another embodiment, the lens frame on the optometry tool is integrated, and all the lenses and the lens frame are separated. In the embodiment as Figure 9 shown, the optometry tool is a film lens. The lens and the lens frame of the film lens are separated. The film lens frame is a whole piece of film, and the separated film lens is attached to the film lens frame. The separated lens is easy to combine with other lenses without being restricted by the lens frame. Since the cylindrical lens used for testing astigmatism needs to be adjusted axially according to each patient's eyes, the separated design from the lens frame is most convenient for realizing its function.

[0046] The coupling mechanism in the present invention refers to a mechanism for connecting the lens and the lens frame of the same optometry tool, or a mechanism for connecting the whole and / or part of different optometry tools. The coupling mechanism can combine different wholes or parts together to achieve collaborative 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.

[0047] 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 and the lens frame of the optometry tool, or between the whole and / or part of different optometry tools. Indirect coupling means that the aforementioned objects are not directly connected, but are respectively connected to a same carrier, and this carrier makes the two or more objects become an integral body after connection. 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.

[0048] In the present invention, according to the principle of vector addition, for patients who need to independently observe the continuous change of eye refractive power, at least one of a spherical lens, an aspherical lens, a cylindrical lens, a prism, and a lens formed by integrally arranging and combining the above types of lenses with the same or different refractive powers, geometric dimensions, quantities, and surface shapes is set on an optometry tool, and different lens functions can be achieved. For example, a spherical lens and a cylindrical lens can integrally form a spherocylindrical lens or a toric lens, and two cylindrical lenses with orthogonal principal meridians of refractive power can integrally form a cross cylinder. By analogy, a spherical prism combined lens, a bifocal lens, a multifocal lens, a progressive multifocal lens, a peripheral defocus lens for retina, a multi-point myopic defocus lens, a Fresnel lens, a microlens array lens, a concentric annular zone cylindrical lens, a highly aspherical microlens, a lens for reducing the imaging contrast of peripheral retina, and other functional lenses can be formed.

[0049] Similarly, according to the principle of vector addition, two or more different optometry tools can also be combined and used. For example, a cylindrical lens is set on one optometry tool, and a spherical lens is set on another optometry tool, and the combination of the two can achieve the effect of a spherocylindrical lens. Similarly, a microlens array lens with a power of +3.00D is set on one optometry tool, and multiple spherical lenses with different refractive powers are set on another optometry tool. The microlens array lens can be combined with different spherical lenses respectively, and it is not necessary to form each spherical lens and the microlens array lens into one body. Therefore, one microlens array lens can meet the combination requirements.

[0050] There are various ways to implement the optometry tool. Preferably, it is set on a flat object, which is easy to implement the arrangement of lenses with different quantities, different types, and different refractive powers.

[0051] The present invention also provides a streak lens. The streak lens is a commonly used optometry tool in ophthalmology and can be used to quickly screen the vision of patients. The streak lens connects multiple lenses with different refractive powers in series on the same whole, which avoids the trouble of repeatedly taking single lenses and has a certain degree of convenience. However, the streak lens used clinically does not have the function of detecting astigmatism. Adding an astigmatism axis mark around the lens of the streak lens can enable the streak lens to have the necessary conditions for detecting astigmatism. The streak lens used clinically is usually a single glass lens embedded in a wooden or plastic frame body, which is large in size and not suitable for portable use by patients. Using transparent polymer materials to mold or inject the lens and the lens frame body of the streak lens is easy to achieve mass production, thereby reducing the product cost and having obvious economic efficiency. Figure 2In the embodiments shown in FIGS. A to 2D, the diopter values of the lenses on the serial lens 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 this split lens and the other lenses on the serial lens can be stacked and combined respectively to produce diopter effects of -1.75D, -2.00D, -2.25D, -2.50D, -2.75D. The existing 6 lenses can be changed into 11 lenses, and maintain an arithmetic progression state. The total range span of the diopter reaches 2.5D. It can be imagined that if the number of split lenses on the serial lens is increased, more diopter values can be combined. For example, in another embodiment, a +1.50D split lens is added to the above serial lens. 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 serial lens to produce +1.25D, +1.00D, +0.75D, +0.50D, +0.25D, +0.00D. In this way, the 7 lenses on the same serial lens can be changed into 17 diopter lenses, and both hyperopic and myopic lenses are available, which is suitable for refractive observation during the process of the patient's eyes changing from hyperopia to myopia. The total range span of the diopter reaches 4D. For a patient to self-test the refractive state, 17 lenses include the lenses in the range from +1.25D to -2.75D, which is sufficient to observe the refractive state of the patient before and in the early stage of myopia.

[0052] In the embodiments shown in FIGS. Figure 2 A to 2D, there are a total of 6 lens positions on the serial lens. Among them, 5 lenses 2 and the lens frame 1 are partially integrated, and the 6th lens position is a hole that penetrates through the upper and lower surfaces. This hole can be used as part of the coupling mechanism to embed the protruding part of the split lens. In another embodiment, all 6 lens positions on the serial lens body can be holes, and the lens frames of the 6 lenses are integrated. The 6 split lenses can be combined with the serial lens body through the coupling mechanism and can be separated at any time. For example, all 6 lenses are independent lenses as shown in FIGS. Figure 6 A to 6C. The frame part 1 of the independent lens is provided with magnetic stickers as the coupling mechanism 4, which can be coupled with the magnetic sticker coupling mechanism 4 on the serial lens as shown in FIGS. Figure 2 A to 2D.

[0053] In some embodiments, the coupling mechanism of the serial lens can rotate relative to each other in the coupled state. As shown in FIGS. Figure 2In the embodiments shown in FIGS. A to 2D, the coupling between the integrally formed part of the string lens and the separate lens is achieved by magnetic force. There are two magnetic sticker coupling mechanisms 4 each on the upper and lower sides along the length direction of the string lens, and there is a circular magnetic sticker coupling mechanism 4 on the lens edge of the separate lens. Therefore, the two can be adsorbed and rotated. As part of the coupling mechanism, in order to increase the rotational stability of the detachable lens relative to the measuring scale body, one of the lens edge positions on the string lens and the lens edge position of the separate lens is concave and the other is convex. The convex lens edge can just be embedded into the concave lens edge. Therefore, during the relative rotation process, the optical centers of the two coupled lenses can always be aligned. In another embodiment, two string lenses of equal length are hinged together by a coupling member at one end, and the two can rotate around the coupling position. This design can reduce the length of the optometry tool.

[0054] The present invention also provides a measuring scale, such as Figure 3 the measuring scale shown, on which a plurality of lenses are provided, and astigmatic axis marks are provided around the lenses. By providing lenses on the measuring scale, the functions of both the string lens and the traditional measuring scale can be achieved simultaneously, and it is convenient for students to use at any time.

[0055] The present invention also provides a card made of a polymer material, on which lenses can also be provided. Such as Figure 4 the bookmark shown, and such as Figure 5 the business card shown are both provided with integrally formed lenses.

[0056] The present invention also provides an optometry tool made of a semi-rigid or rigid transparent polymer material, which is an independent lens with a coupling mechanism, such as Figure 6 shown in FIGS. A to 6C; two or more independent lenses can be coupled through the coupling mechanism 4 on the body, and the coupled independent lenses can be separated at any time, such as Figure 7 shown, two independent lenses as shown in Figure 6 FIGS. A to 6C are combined together through the magnetic sticker coupling mechanism 4 respectively provided on the lens frame 1; The independent lens has the greatest flexibility and can be conveniently combined with other lenses for use. The independent lens with the magnetic sticker coupling mechanism 4 as shown in Figure 6 FIGS. A to 6C and the Figure 2 string lens in can be combined.

[0057] The independent lens may include a horizontal coupling mechanism and a vertical coupling mechanism. The horizontal coupling mechanism can connect multiple film lenses in series as a whole, while the vertical coupling mechanism can vectorially superimpose the film lenses on each other. In another embodiment, multiple independent lenses are formed into a whole along the horizontal direction by a bearing coupling mechanism 4. At the same time, this coupling mechanism can achieve the function of serpentine folding of the lens. Through folding, the vector addition effect of a specific lens combination can also be achieved, and the shape of the lens combination can be changed from planar to three-dimensional, which can be convenient for carrying and reduce wear in certain cases.

[0058] The present invention also provides an optometry tool made of a flexible transparent polymer material, which is a film lens.

[0059] The film lens is a plastic film lens used in ophthalmology, made of a flexible polymer material, with a thickness less than 2 mm, generally about 1 mm, similar to a mobile phone film, and much thinner and lighter than the lenses commonly used in ophthalmology. The current usage method of the film lens is limited to attaching a single film lens to a spectacle lens for combined use to correct the refractive error of the patient. However, there is currently no precedent for using the film lens in the patient's optometry process. In fact, by combining the film lens with other lenses, the convenience, thinness, and flexibility of the combination of the two can be simultaneously exerted, which has great advantages compared with the existing optometry lenses and can truly achieve personalized use by the patient.

[0060] When the film lens is attached to different objects, it can be achieved by different coupling mechanisms. In the embodiments shown in Figure 9 A to Figure 9 C, Figure 10 A to Figure 10 C, Figure 11 A to Figure 11 C, Figure 12 A and Figure 12 B, the film lens has an electrostatic adsorption force, which can make the film adsorb to an object, or the film lenses can also adsorb to each other. In another embodiment, the film lens can have a transparent non-permanent adhesive as a coupling mechanism. The adhesive can make the film attach to other optometry tools, including other film lenses, 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 film can be replaced.

[0061] In the present invention, the lens and the lens frame of the film 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.

[0062] In Figure 8In the embodiments shown in FIGS. A to 8C, all the lenses 2 and lens frames 1 on the film-attached lens are separate, and the lenses 2 are electrostatically attached to the lens frames 1.

[0063] Since the cylindrical lenses used to measure astigmatism have vector characteristics and the meridian direction of the cylindrical lens for each patient is personalized, separating the design of the cylindrical lens and the cylindrical lens frame on the film-attached lens can facilitate the personalized needs of patients during use. When in use, the cylindrical lens can be separated from the cylindrical lens frame and attached to the lens of another optometry tool according to the meridian direction of the patient's own eye, such as Figure 2 On the spherical lenses of the cross cylinder shown in FIGS. A to 2D, the two can jointly combine to produce the effect of a spherical-cylindrical combined lens.

[0064] In such as Figure 9 In the embodiments shown in FIGS. A to 9C, the lens 2 and the lens frame 1 on the film-attached lens 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 bears and fixes the film, making it an integral whole.

[0065] In another embodiment, some of the lenses and lens frames on the film-attached lens are integral and some are separate, and the two are jointly attached to the same protective layer.

[0066] In such as Figure 9 In the embodiments shown in FIGS. A to 9C, the lens 2 and the lens frame 1 on the film-attached lens are both separate, all the lenses 2 are single cylindrical lenses, and an astigmatism axis mark is provided around each cylindrical lens. The surface of the two surfaces of the separate film-attached lens lens that adheres to the film-attached lens frame is a plane, which can make the two adhere better. 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 as plano-concave or plano-convex. In another embodiment, all the lenses on the film are crossed cylinders. In another embodiment, all the lenses on the film are spherical-cylindrical combined lenses.

[0067] The design of the functional lens is a multi-focal progressive lens, a microlens array, an annular lens array, or an toric lens concentric circle array, etc. of lenses superimposed on a single-focus lens, and they are usually the design features of different functional lenses. These superimposed design features can be separately set on the film-attached lens. The changes in these designs are usually very limited. If such a film-attached lens is combined with other optometry tools, it can not only allow patients to experience different designs, but also greatly reduce the number of lenses, so as to better achieve personalized use.

[0068] The lenses of the film-attached lens can be arbitrarily combined with the lenses of other optometry tools described in claims 1-6 to achieve changes in diopter and lens function. Such as Figure 11As shown in FIGS. A to 11C, a film lens, all the lenses on which are cylindrical lenses, and the diopter of all the cylindrical lenses 2 is -1.00DC. It is attached to the front surface of an integrally formed streak retinoscopy tool by electrostatic adsorption, and the axial directions of the cylindrical lenses are all 80°. At the same time, a film lens with a spherical diopter of +1.00D on each of its surfaces is attached to the rear surface of the streak retinoscopy tool. The three together constitute a combined retinoscopy tool. The above tool is customized according to the patient's eye astigmatism of -1.00DCx80°. The current spherical diopter value is the sum of the diopter values of the streak retinoscopy and the spherical lens of the corresponding film lens. Generally, the astigmatism of the patient's eyes is stable. After the myopia increases by -1.00D, the film lens on the rear surface of the streak retinoscopy can be torn off, and the spherical diopter of the streak retinoscopy itself can be used to continue monitoring the myopia progression. This combined retinoscopy tool facilitates the personalized detection and monitoring of patients and is convenient to use.

[0069] The film lens provided in the present invention can be prefabricated onto the spectacle lens.

[0070] As Figure 12 As shown in FIGS. A and 12B, two different film lenses are prefabricated and attached to the front and rear surfaces of a spectacle lens respectively. The diopter of the spectacle lens is -4.00D, and the diopter of both film lenses 2 is +0.25D. The current actual combined diopter of the spectacle lens and the film lens is -3.50D. When the patient's myopia increases by -0.25D, one layer of the film lens can be torn off, and the diopter becomes -3.75D. When the myopia increases by another -0.25D, another layer can be torn off, and at this time the diopter becomes -4.00D. This prefabrication method avoids the trouble and economic expenditure of frequently replacing spectacle lenses. At the same time, the deepening of the patient's myopia is corrected in a timely manner, avoiding the acceleration of myopia progression caused by some patients' spectacle lenses not being replaced in time after the myopia deepens.

[0071] To make it more convenient for patients to self-test, some auxiliary marking lines can be added to the retinoscopy tool. In addition to the axial markings necessary for astigmatism detection, some optical markings of the lens also need to be marked, such as the optical center of the lens, the central optical zone range of the peripheral defocus lens, etc.; arrow markings for the lens usage sequence, which usually point from the positive lens direction to the negative lens for myopia detection, and usually point from the positive lens with a lower diopter to the positive lens with a higher diopter for hyperopia detection; the cylindrical lens usually needs to be rotated 180° to find the appropriate axial direction during the determination of the axis position, and the start and end markings for rotation can be designed; length markings can be used to assist patients to use according to their own interpupillary distance, and can also show the length characteristics of the lens, such as the diameter size; different diameter pupil reference circles can also be set to evaluate the pupil size of the patient.

[0072] The characteristics of the lens itself on the optometry tool also need to be marked, or marked using some abbreviation and / or code. For example, in ophthalmology, "D" is commonly used to mark the unit of diopter, which is the abbreviation of the English word "diopter"; "DC" is often used to represent the diopter of the cylindrical lens. The axis position of the cylindrical lens also needs to be marked on the cylindrical lens. Usually, black short line segments are used to represent positive cylindrical lenses and red short line segments are used to represent negative cylindrical lenses on the periphery of the cylindrical lens; the magnitude of the diopter can be composed of "+", "-" signs and specific numerical values. The "+" sign represents hyperopic / presbyopic lenses, and the "-" sign represents myopic lenses. "▲" is used to represent prism diopter; there are many types of lenses combined by spherical lenses, cylindrical lenses, and prisms in different ways, which can be represented by specific letters and / or codes. Since the diopters of bifocal lenses, progressive multifocal lenses, and some peripheral defocus lenses have differences in the up-down and even left-right directions, special auxiliary marks are needed to be prompted on the film. The center of the lens is also an important characteristic point of the lens. A breath mark can be added at the center of the lens to avoid the influence of colored marks on vision.

[0073] As Figure 2 shown in A, there are a pupil reference mark circle 7, a marking line 8 indicating the axis position of the cylindrical lens, an arrow mark 9 for the lens usage order, and a lens diopter value 10 on the cross cylinder. For functional lenses, targeted settings can be made according to specific functions.

[0074] In the measuring ruler embodiment as Figure 3 shown, there is a length mark 11 indicating the distance. This length mark can measure the pupil distance of the patient and can also mark the diameter of the lens on the measuring ruler, the distance between adjacent optical centers, and other lens characteristics. In another embodiment, the length mark can also be longer to achieve more measurement functions.

[0075] The arrangement of the diopter values of the lenses on the optometry tool in this invention patent is arbitrary, including arithmetic progressions, geometric progressions, and the paired arrangement of positive and negative lenses with the sum of the diopter values being zero.

[0076] In the case as Figure 2In the embodiments shown in A to 2D, the arrangement of the diopter values of the upper lens of the series lens is an arithmetic progression, and the diopter difference is -0.25D. When the split lens with -1.50D is combined with other lenses on the series lens, the combined lens is still a set of arithmetic progressions. In another embodiment, the lenses on the film lens can be in a geometric progression. For example, the diopter values of the lenses on a film lens are +4.00D, +2.00D, +1.00D, +0.50D, +0.25D, -0.25D, -0.50D, -1.00D, -2.00D, -4.00D. The ratio of the positive diopters decreases by 2 times from left to right, and the ratio of the negative diopters increases by 2 times from left to right. This design is conducive to quickly judging whether the patient is nearsighted and locating the specific interval of the refractive state. For example, between -2.00D and -4.00D. This design improves the detection efficiency. In another embodiment, there are pairs of lenses with the sum of diopter values being zero arranged on the film lens, such as -1.00D, +1.00D, -1.50D, +1.50D, -2.00D, +2.00D. This design is suitable for training the accommodation response of the patient's eyes one by one for each eye. This arrangement is a characteristic of the commonly used flipper lens in ophthalmology for training the accommodation flexibility of the eyes and has a certain effect on preventing myopia. In another embodiment, there are 4 lenses on the bookmark, and the centers of the lenses are distributed at the 4 vertices of a square, with diopters of +2.00D, -2.00D, +2.00D, -2.00D respectively. The diopters of the lenses at the two diagonal positions are the same. This design is suitable for simultaneous flipper training of both eyes. By further attaching pairs of film lenses with the same diopter to the flipper lenses with the above-mentioned flipper characteristics, the diopter of the flipper lens can be changed. For example, two film lenses with +0.50D and two film lenses with -0.50D are respectively attached to the bookmark lenses with +2.00D and -2.00D, then their diopters become +2.50D and -2.50D respectively. In this way, the training range of the flipper is expanded, and a progressive training process of diopters can be achieved.

[0077] The distribution of the upper lenses on the optometry tool in this invention patent is arbitrary. In the series lens shown in Figure 2 A, all the lenses are arranged in a straight line. In other embodiments, the distribution of the lenses can be in the form of a regular polygon arrangement, a circular arrangement, a matrix arrangement, etc.

[0078] Therefore, according to the present invention, by combining and applying the astigmatism axis mark and the refractive detection lens in different ways, it is possible for patients to independently, individually, and flexibly perform refractive error detection and correction. The purpose of enabling patients to timely discover refractive errors and track and correct their changes in real time is achieved. At the same time, the optometry tool provided by the present invention has good economy in manufacturing cost, can be realized by large-scale manufacturing methods, and can benefit a large number of patients.

[0079] 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. An optometry tool, comprising a lens frame (1) and at least one lens (2), characterized in that At least one lens edge and / or lens frame is provided with an astigmatic axis mark (3); the lens (2) is made of a flexible, semi-rigid or rigid transparent polymer material; the lens and the lens frame are integrated or separate, or part of the lens is separate; the separate lenses are coupled to the lens frame 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 the above types of lenses in an integrated manner with the same or different diopters, geometric dimensions, quantities, and surface shapes; the lenses arranged and combined integrally include spherocylindrical lenses, toric lenses, crossed cylinders, spherical prism combined lenses, bifocal lenses, multifocal lenses, progressive multifocal lenses, peripheral defocus lenses for the retina, multi-point myopia defocus lenses, Fresnel lens sheets, microlens array lenses, concentric annular zone cylindrical lenses, highly aspherical microlenses, and lenses with reduced peripheral retinal imaging contrast.

2. The optometry tool according to claim 1, characterized in that The optometry tool made of semi-rigid or rigid transparent polymer material is a streak retinoscope.

3. The optometry tool according to claim 1, characterized in that, The optometry tool made of semi-rigid or rigid transparent polymer material is a measuring scale.

4. The optometry tool according to claim 1, wherein, The optometry tool made of semi-rigid or rigid transparent polymer material is a card.

5. The optometry tool according to claim 4, characterized in that, The card is a bookmark or a business card.

6. The optometry tool according to claim 1, wherein The optometry tool made of semi-rigid or rigid transparent polymer material is an independent lens with a coupling mechanism; two or more independent lenses can be coupled through the coupling mechanism, and the coupled independent lenses can be separated at any time.

7. The optometry tool according to claim 6, wherein The lens of the independent lens can be coupled to the lens of the optometry tool according to any one of claims 2 or 3 through the coupling mechanism.

8. The optometry tool according to claim 1, characterized in that, The optometry tool made of flexible transparent polymer material is a film lens.

9. The optometry tool according to claim 8, wherein, The lens of the film lens can be attached to the lens of the optometry tool according to any one of claims 1-6.

10. The optometry tool according to claim 8, characterized in that, The film lens is further prefabricated on an eyeglass lens, and the number of prefabricated film lenses can be 1 layer, 2 layers or multiple layers.

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