阅读说明：本技术 控制近视的离焦隐形眼镜 (Out-of-focus contact lens for controlling myopia ) 是由 蔡庆财 于 2021-10-19 设计创作，主要内容包括：本发明公开了一种控制近视的离焦隐形眼镜,包括：隐形眼镜本体,隐形眼镜本体具有位于中央的第一近视屈光度区、环设于第一近视屈光度区的第二离焦屈光度区、及围设于第二离焦屈光度区的第三周边屈光度区；其中,第一近视屈光度区成六边形；第二离焦屈光度区密布独立的多个屈光单元,屈光单元屈光度不同。本发明通过在隐形眼镜的中心设置六边形的第一近视屈光度区,满足中心用眼需求,而外围的第二离焦屈光度区则设置多个屈光单元,用于实现屈光度正负增加,保证用户看上和左右的视区需求,实现离焦转变,避免青少年用眼不适,度数加深,增强近视防控。(The invention discloses an out-of-focus contact lens for controlling myopia, which comprises: the contact lens comprises a contact lens body, a first lens and a second lens, wherein the contact lens body is provided with a first near vision diopter area positioned in the center, a second out-of-focus diopter area annularly arranged in the first near vision diopter area, and a third peripheral diopter area arranged around the second out-of-focus diopter area; wherein the first near vision diopter area is hexagonal; the second defocus diopter area is densely distributed with a plurality of independent diopter units, and the diopter units have different diopters. The hexagonal first myopia diopter area is arranged at the center of the contact lens, so that the requirement of using eyes at the center is met, the plurality of refraction units are arranged in the peripheral second defocus diopter area and are used for realizing the increase of the positive and negative diopters, ensuring the visual area requirements of users on seeing and on the left and the right, realizing defocus transformation, avoiding the discomfort and degree of using eyes of teenagers, and enhancing myopia prevention and control.)

1. An out-of-focus contact lens for controlling myopia, comprising:

the contact lens comprises a contact lens body, a first lens and a second lens, wherein the contact lens body is provided with a first near vision diopter area in the center, a second out-of-focus diopter area annularly arranged in the first near vision diopter area, and a third peripheral diopter area surrounding the second out-of-focus diopter area;

wherein the first near vision diopter area is hexagonal; and the second defocus diopter area is densely distributed with a plurality of independent diopter units, and the diopter units have different diopters.

2. A defocused contact lens for controlling myopia according to claim 1, wherein said dioptric unit is configured in a circular shape with a diameter of 0.01mm to 0.15mm, and the surface is convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm.

3. A through-focus contact lens for controlling myopia according to claim 1, wherein the dioptric unit has a positive addition of power to the first zone of myopic power or a negative addition of power to the first zone of myopic power.

4. A through-focus contact lens for controlling myopia according to claim 1, wherein the first zone of myopic power and the third zone of peripheral power are of the same power.

5. A through-focus contact lens for controlling myopia according to claim 1, wherein the first zone of myopic power and the third zone of peripheral power are of different powers.

6. A through-focus contact lens for controlling myopia according to claim 1, wherein the first myopic zone of power has a width of 1.5mm to 2.2 mm.

7. A through-focus contact lens for controlling myopia according to claim 1, wherein the second through-focus power zones are hexagonal.

Technical Field

The invention belongs to the technical field of contact lenses, and particularly relates to an out-of-focus contact lens for controlling myopia.

Background

The traditional contact lens with vision control function can rapidly increase diopter after the lens is out of the central area, and the diopter changes violently, so that discomfort of a wearer is serious, and the effect of vision control is greatly reduced because the lens cannot be matched with a treatment course for a long time. In addition, the conventional contact lenses with positive and negative identification functions have a concave micro-groove or a convex small round point on the surface of the contact lens, however, the concave micro-groove easily breaks the contact lens, and the convex small round point easily makes the wearer feel a serious foreign body sensation. In addition, the conventional contact lenses with vision control function cannot control the luminous flux, too much luminous flux causes photophobia of the wearer, and too little luminous flux causes blurred images. Therefore, how to improve the structure of the contact lens to have the vision control function and avoid the above-mentioned defects has become the objective of the related manufacturers.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide a defocus contact lens for controlling myopia, which is used to avoid the trouble that the defocus effect of the contact lens is deteriorated along with the conversion of the visual area due to the deepening of the eye degree used by the teenagers in the past.

In order to solve the above technical problems, the present invention discloses an out-of-focus contact lens for controlling myopia, comprising:

the contact lens comprises a contact lens body, a first lens and a second lens, wherein the contact lens body is provided with a first near vision diopter area positioned in the center, a second out-of-focus diopter area annularly arranged in the first near vision diopter area, and a third peripheral diopter area arranged around the second out-of-focus diopter area;

wherein the first near vision diopter area is hexagonal; the second defocus diopter area is densely distributed with a plurality of independent diopter units, and the diopter units have different diopters.

According to an embodiment of the present invention, the dioptric unit is configured in a circular shape with a diameter of 0.01mm to 0.15mm, and the surface has a protrusion or a depression with a height of 0.01 μm to 4 μm.

According to an embodiment of the invention, the dioptric unit has a positive power added to the first near vision power zone or a negative power added to the first near vision power zone.

According to an embodiment of the present invention, the first near vision power zone and the third peripheral power zone have the same power.

According to an embodiment of the present invention, the first near vision power zone and the third peripheral power zone have different powers.

According to an embodiment of the present invention, the width of the first near vision diopter area is 1.5mm-2.2 mm.

According to an embodiment of the present invention, the second defocus area is hexagonal.

Compared with the prior art, the invention can obtain the following technical effects:

set up hexagonal first myopia diopter district through the center at contact lens, satisfy the center and use the eye demand, and peripheral second out of focus diopter district then sets up a plurality of refraction units for realize the positive negative increase of diopter, guarantee that the user sees with the visual area demand of controlling, realize out of focus and change, avoid teenagers to use the eye discomfort, deepen the number of degrees, reinforcing myopia prevention and control.

Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of an out-of-focus contact lens for controlling myopia according to an embodiment of the present invention.

Reference numerals

The contact lens comprises a contact lens body 10, a first near vision diopter area 11, a second out-of-focus diopter area 12, a third peripheral diopter area 13 and a dioptric unit 20.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present invention can be fully understood and implemented.

Referring to fig. 1, fig. 1 is a schematic view of an out-of-focus contact lens for controlling myopia according to an embodiment of the present invention.

As shown, an out-of-focus contact lens for controlling myopia, comprising: the contact lens comprises a contact lens body 10, wherein the contact lens body 10 is provided with a first near vision diopter area 11 positioned in the center, a second out-of-focus diopter area 12 annularly arranged in the first near vision diopter area 11, and a third peripheral diopter area 13 arranged around the second out-of-focus diopter area 12; wherein the first near vision diopter area 11 is hexagonal; the second defocus area 12 is densely distributed with a plurality of individual dioptric units 20, and the dioptric units 20 are different in diopter.

In one embodiment of the invention, the contact lens body 10 is made of polyhydroxyethylmethacrylate and has, from the inside out, a first near vision power zone 11, a second defocus power zone 12, and a third peripheral power zone 13 in the center. Wherein, first myopia diopter district 11 sets up to the hexagon district at contact lens body 10 center for aim at user's eyes central authorities, normal head when realizing that the user wears is looked squarely, realizes central focusing, when satisfying the eye demand for the center, farther sight demand about can realizing, guarantees the comfort level of eye, avoids deepening the degree. The second out-of-focus diopter area 12 is densely distributed with a plurality of independent diopter units 20, diopter of the second out-of-focus diopter areas changes compared with the first out-of-focus diopter area 11, when the user looks at the upper and lower sides or the left and right sides far away, because eyeballs and visual distances change, in order to protect eyes, eyestrain is avoided, the visual area is set as the second out-of-focus diopter area 12 with diopter change, the first out-of-focus diopter area 11 is surrounded in distribution, and the corresponding setting of the user interpupillary distance can be realized. And the outermost third peripheral diopter zone 13 is a blind zone, so that the matching is convenient.

The dioptric unit 20 is configured in a circular shape of 0.01mm-0.15mm and has surface protrusions or depressions having a height of 0.01 μm-4 μm. Further, the dioptric unit 20 has a positive addition of power to the first near vision diopter zone 11 or a negative addition of power to the first near vision diopter zone 11. Thereby accomplishing diopter change, the adaptation stadia uses, accomplishes out of focus change, guarantees to use eye comfort level, has improved the use comfort level of contact lens body 10, realizes myopia prevention and control.

In one embodiment, the first near vision power zone 11 and the third peripheral power zone 13 have the same power, which facilitates molding. In other embodiments, the diopters of the first near diopter area 11 and the third peripheral diopter area 13 are different, and can be changed accordingly according to the interpupillary distance and the power requirement of the wearer, which is not limited to this.

In a preferred embodiment, the width of the first near vision diopter area 11 is 1.5mm-2.2mm, so that the requirement of the wearer for central eye use is ensured, and the near vision prevention and control is realized. In addition, the second defocus area 12 is hexagonal and is designed in the same way as the first myopia area 11, so that myopia prevention and control are realized.

In summary, the invention meets the demand of eye use in the center by arranging the hexagonal first myopic diopter area in the center of the contact lens, and the peripheral second defocused diopter area is provided with a plurality of dioptric units for realizing the increase of diopter positive and negative, ensuring the visual area demand of the user when the user looks at and around, realizing defocusing conversion, avoiding the discomfort of eye use of teenagers, deepening the diopter and enhancing the prevention and control of myopia.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.