CN115728964A - Soft contact lens with wave crests and wave troughs - Google Patents
Soft contact lens with wave crests and wave troughs Download PDFInfo
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- CN115728964A CN115728964A CN202211506456.6A CN202211506456A CN115728964A CN 115728964 A CN115728964 A CN 115728964A CN 202211506456 A CN202211506456 A CN 202211506456A CN 115728964 A CN115728964 A CN 115728964A
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Abstract
The invention provides a soft contact lens with wave crests and wave troughs, which comprises a central correction area and an annular correction area, wherein a user can obtain a clear object image through the central correction area, and meanwhile, light rays focus the object image on the front side of a retina through the annular correction area so as to guide glasses to adjust and achieve the purpose of treating myopia. Meanwhile, the annular bulge and the circular area are in smooth transition, the formation of the degree range is avoided, and the comfort degree of eyes of a user after wearing the glasses is better.
Description
Technical Field
The invention relates to the technical field of contact lenses, in particular to a soft contact lens with wave crests and wave troughs.
Background
Myopia is a common refractive disorder problem of the human eye and typically develops when the size/length of the eye grows beyond the focal length of the optical portion of the eye, in which case the optical image is formed in front of the retina with a positive defocus, known as myopic defocus. The human eye has a feedback mechanism that regulates eye growth to achieve an optimal balance between eye size/length and focal length of the optical portion of the eye, which is called emmetropization. When myopic defocus decreases, emmetropization mechanisms operate to retard eye growth in size until the retina coincides with the optical image position. The existing optical therapeutic lenses in the market utilize an orthographic mechanism, and an auxiliary correction area and a correction area are arranged in the lenses, so that the correction area can enable images to be correctly mapped on retinas, and a user can watch the images clearly; the auxiliary correction area is used for forming an image in front of the retina and inducing the growth of the glasses to realize vision correction.
However, the conventional auxiliary correction area adopts a fresnel lens structure, and a user feels discomfort after wearing the auxiliary correction area.
Disclosure of Invention
The invention mainly aims to provide a soft contact lens with wave crests and wave troughs, and aims to solve the problem that the existing contact lens adopts a Fresnel lens structure, so that a user feels uncomfortable when wearing the contact lens.
To achieve the above object, the present invention provides a soft contact lens having peaks and valleys, comprising:
a substrate comprising an outer convex surface;
the annular protrusions are coaxially arranged on the outer convex surface, and a certain interval is kept between every two annular protrusions;
the annular protrusion and the circular area inside the annular protrusion form a vision correction area, and the vision correction area comprises a central correction area and an auxiliary correction area;
the central correction area comprises the circular area and at least one circle of annular bulge arranged close to the circular area, and the area where the annular bulge outside the central correction area is located forms an auxiliary correction area;
the outer diameter of the central correction area is 2.5-5mm, and the central correction area has at least more than one degree difference.
In one embodiment, the difference in the number of degrees ranges from 200 to 350 degrees.
In one embodiment, the auxiliary correction zone has an outer diameter of 8-10mm.
In one embodiment, the diameter of the substrate is 13.8-15mm.
In one embodiment, annular grooves are formed between the annular protrusions, peaks are formed at the tops of the annular protrusions, valleys are formed at the bottoms of the annular grooves, and the distance between adjacent peaks ranges from 0.2 mm to 2.4mm.
In one embodiment, the distance from the peak to the valley to which it is immediately attached is in the range of 0.12-2mm.
In one embodiment, the distance between two adjacent peaks is the same as the distance between two adjacent valleys.
In one embodiment, the groove width of the annular groove increases in a direction from the center to the outside.
In one embodiment, the groove width of the annular groove decreases in a direction from the center to the outside.
In one embodiment, the circular region and the annular protrusion have a smooth transition therebetween, and the annular protrusion and the annular groove have a smooth transition therebetween.
According to the technical scheme, the soft contact lens with the wave crests and the wave troughs is arranged, so that a user can obtain a clear object image through the central correction area, and meanwhile, the object image is focused on the front side of the retina through the auxiliary correction area by light rays so as to guide the glasses to adjust. The periphery of the circular area of the central correction area is provided with at least one circle of annular bulges, so that the central correction area has at least one degree difference, and a certain myopia correction effect can be achieved. Meanwhile, the annular bulge and the circular area are in smooth transition, the formation of the degree range is avoided, and the comfort degree of eyes of a user after wearing the glasses is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of an embodiment of a soft contact lens with peaks and valleys according to the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
22 | |
| 11 | |
23 | |
| 21 | Circular area |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a soft contact lens with wave crests and wave troughs, referring to fig. 1, the soft contact lens with wave crests and wave troughs comprises:
a substrate 10 comprising an outer convex surface 11;
the annular protrusion 23 and its inner circular area 21 form a vision correction zone comprising a central correction zone and an auxiliary correction zone;
the central correction zone comprises the circular area 21 and at least one ring of annular bulges 23 arranged close to the circular area 21, and the area of the annular bulges 23 outside the central correction zone forms an auxiliary correction zone;
the outer diameter of the central correction area is 2.5-5mm, and the central correction area has at least more than one degree difference.
In the present embodiment, the substrate 10 is made of resin or glass, a plurality of annular protrusions 23 may be disposed on the optical surface of the substrate 10, the circular region 21 in the center of the substrate 10 and at least one ring of annular protrusions 23 disposed near the circular region 21 constitute a central correction region, and the region where the annular protrusions 23 outside the central correction region are disposed constitutes an auxiliary correction region, so that the central correction region and the auxiliary correction region form a concentric lens structure. When the user wears the structure, the concentric circle structure is attached to the pupil position of the eyeball. At least one ring of annular protrusions 23 at the periphery of the circular area 21 is used as a part of the central correction zone, so that the central correction zone comprises at least one degree difference, and the outer diameter range of the central correction zone is limited, so that the at least one ring of annular protrusions 23 can be used for vision correction and forms virtual focus scattering in front of the retina.
Conventional monofocal lenses have only one power, and objects viewed through the lens can be clearly imaged on the retina, while objects viewed through the periphery of the lens are imaged behind the retina, forming a peripheral hyperopic defocus, although the middle can be clearly seen. Because human eyes have a self-control mechanism of 'seeing clearly objects', the eyeballs are stretched backwards to eliminate peripheral hyperopic defocus so as to achieve peripheral imaging on retinas, and as a result, the myopia degree is deepened. Therefore, the traditional spectacles are only worn clearly, and the optical design of the traditional spectacles does not achieve the effect of well controlling the increase of the myopia degree. If the periphery can be imaged on the retina or in front of the retina through the lens to form focusing or peripheral myopic defocusing, the motive force of eyeball lengthening is cut off, the stimulation signal for promoting the lengthening of the axis of the eye is eliminated, and the aim of inhibiting the myopic deepening is fulfilled. Thus, the ideal optical control, in effect, would resemble the following figure: the central area should be clear and the peripheral image should fall a little before the retina, allowing the retina to move as far inward as possible without extending backward. It can be understood that, for a myopic user, the focus of the optical structure of the eye is positioned in front of the retina of the eye, and the phenomenon of myopic defocus occurs, so that the user cannot see the picture clearly. The utility model provides a soft contact lens with crest trough, just can see clearly the image at the supplementary user, induce the benign growth of user's eyes, concretely, soft contact lens with crest trough includes central correction zone, central correction zone is located the centre of the soft contact lens with crest trough, thereby pupil and central correction zone roughly set up relatively when user looks far, the diopter of central correction zone is corresponding with user's myopia ametropia's degree, mostly negative, in order to project the image clearly on user's retina, make the user can clearly see clearly the image when looking far, the periphery in central correction zone is overlapped alternately and is equipped with annular and annular correction zone, annular correction zone can form the image before user's interval area retina, so set up, because the image of defocusing this moment is located before user's retina, just can restrain user's axis of the eye extension, in order to avoid user's myopia to deepen, until user's eyeball's focus is unanimous with user's retina position, realize the vision correction to the user.
In the present embodiment, the smoother the transition between the annular protrusion 23 and the annular groove 22, the smaller the range of the degree, and the better the user's appearance when wearing and using.
In one embodiment, referring to fig. 1, if the user's myopia degree is 500 degrees, it is recorded as "-5D", the central correction zone has at least one or more degree differences, and the degree difference ranges from 200 to 350 degrees. In this embodiment, the degree of the central correction area is generally set to-150 to-100 degrees, the degree of the annular protrusion 23 is 50 to 300 degrees, and the degree of the annular protrusion 23 is in the range of 50 to 300 degrees. The degree of the annular bulge 23 can be consistent or can be sequentially increased from inside to outside, and the increment can be specifically set between 20 and 50 degrees. The increments are of a consistent size and may be inconsistent.
In this embodiment, the central correction zone has an outer diameter of 2.5 to 5mm, the auxiliary correction zone has an outer diameter of 8 to 10mm, and the substrate 10 has a diameter of 13.8 to 15mm. In this embodiment, the pupil diameter of an adult is generally about 6 mm. The outer diameter of the central correction zone is controlled to be within the range of 2.5-5mm to ensure that the central correction zone is smaller than the pupil diameter. Meanwhile, the auxiliary correction area can focus the light rays entering the pupil, so that the light rays are scattered in front of the retina. In addition, the diameter of the base material 10 is set to be 13.8-15mm, so that the release mirror can cover the pupil and is attached to the eyeball.
In one embodiment, referring to fig. 1, the wavy line includes peaks and valleys, and the distance between adjacent peaks ranges from 0.2 mm to 2.4mm. The distance from the peak to the valley connected with the peak ranges from 0.12 mm to 2mm. In this embodiment, the groove width of the annular groove 22 is gradually increased or decreased from the center to the outside, and may be kept consistent, and when the width of the annular groove 22 is consistent, the wavy line is a sine wave line. According to the invention, by arranging the soft contact lens with wave crests and wave troughs, which comprises the central correction area and the auxiliary correction area, a user can obtain a clear object image through the central correction area, and meanwhile, light rays focus the object image on the front side of the retina through the auxiliary correction area so as to guide the glasses to adjust, thereby achieving the purpose of myopia treatment. Meanwhile, the distances and the shapes among the annular bulges 23, the annular grooves 22 and the annular bulges 23 are adjusted, so that the joints of the annular bulges 23, the annular grooves 22 and the annular bulges 23 are smooth, the extremely poor degree is avoided, and the comfort degree of eyes of a user after wearing the glasses is better.
1. The central correction area is 2.5-5mm, the center has at least more than one degree difference (the degree difference is between 200 degrees and 350 degrees), the degrees are gradually enlarged or reduced,
the peak and the trough of the power, namely at least one peak and trough of the power are displayed under a high-resolution power distribution instrument and a wave front aberration analyzer of the optical analyzer. The non-central area is 8-10mm. The whole is 13.8-15mm.
2. The plane distance of the soft lens products between the wave crests of two adjacent degrees or the wave troughs of two adjacent degrees is 0.25-2.4mm, the plane distances of the soft lens products between the two adjacent wave crests and wave troughs can be the same or different, the plane distance value of the minimum soft lens product is 0.25mm, and the plane distance value of the maximum soft lens product is 2.4mm.
3. The peaks or the valleys are connected smoothly, and each peak to valley and then peak are gradually increased or decreased in power.
4. The distance from each peak to the immediately adjacent first trough may be between 0.12 and 2mm, and the planar distance from each trough to the immediately adjacent first peak may be between 0.12 and 2mm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A soft contact lens having peaks and valleys, comprising:
a substrate comprising an outer convex surface;
the annular protrusions are coaxially arranged on the outer convex surface, and a certain interval is kept between every two annular protrusions;
the annular protrusion and the circular area inside the annular protrusion form a vision correction area, and the vision correction area comprises a central correction area and an auxiliary correction area;
the central correction area comprises the circular area and at least one circle of annular bulge arranged close to the circular area, and the area where the annular bulge outside the central correction area is located forms an auxiliary correction area;
the outer diameter of the central correction area is 2.5-5mm, and the central correction area has at least more than one degree difference.
2. A soft contact lens having peaks and valleys according to claim 1 ， The range of the degree difference is 200350 degrees.
3. A soft contact lens having peaks and valleys according to claim 1, wherein the outer diameter of the auxiliary correction zone is 8-10mm.
4. A soft contact lens having peaks and valleys according to claim 1, wherein said substrate has a diameter of 13.8-15mm.
5. A soft contact lens having peaks and valleys according to claim 1, wherein annular grooves are formed between the annular protrusions, peaks are formed at the tops of the annular protrusions, valleys are formed at the bottoms of the annular grooves, and the distance between adjacent peaks ranges from 0.2 mm to 2.4mm.
6. A soft contact lens having peaks and valleys according to claim 5, wherein the distance from said peak to said valley immediately adjacent thereto is in the range of 0.12-2mm.
7. A soft contact lens having peaks and valleys according to claim 6, wherein the pitch between two adjacent peaks is the same as the pitch between two adjacent valleys.
8. A soft contact lens having peaks and valleys according to claim 5, wherein the groove width of the annular groove increases in a direction from the center to the outside.
9. A soft contact lens having peaks and valleys according to claim 5, wherein the groove width of said annular groove decreases in a direction from the center to the outside.
10. A soft contact lens with peaks and valleys according to claim 5, wherein there is a smooth transition between said circular area and said annular ridge and a smooth transition between said annular ridge and said annular groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211506456.6A CN115728964A (en) | 2022-11-28 | 2022-11-28 | Soft contact lens with wave crests and wave troughs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211506456.6A CN115728964A (en) | 2022-11-28 | 2022-11-28 | Soft contact lens with wave crests and wave troughs |
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| CN115728964A true CN115728964A (en) | 2023-03-03 |
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| CN202211506456.6A Pending CN115728964A (en) | 2022-11-28 | 2022-11-28 | Soft contact lens with wave crests and wave troughs |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113641007A (en) * | 2021-08-11 | 2021-11-12 | 江苏科技大学 | Lens of wave shape in many rings of many focal distances single ring |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113641007A (en) * | 2021-08-11 | 2021-11-12 | 江苏科技大学 | Lens of wave shape in many rings of many focal distances single ring |
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