CN218037575U - Myopia prevention and control out-of-focus lens - Google Patents

Abstract

The utility model relates to a lens technical field specifically is myopia prevention and control out of focus lens, include: the lens comprises a lens body, a first lens and a second lens, wherein the lens body is provided with a first diopter area positioned in the center, a second diopter area annularly arranged in the first diopter area and a third diopter area arranged around the second diopter area, and the first diopter area comprises a hexagonal area positioned in the center of the lens body; the second diopter zone and the third diopter zone are both arranged in a circle; and the second diopter zone is densely distributed with a plurality of independent diopter units. The utility model discloses a set up the hexagon district in lens body center, guarantee the demand that the user looked at the central visual area, improve and use eye comfort level; and the peripheral second diopter area is provided with a plurality of diopter units for realizing the increase of positive and negative diopters, ensuring the requirements of users for watching upper, lower, left and right visual areas, realizing defocusing conversion, avoiding the discomfort of teenagers with eyes and the deepening of diopters, and enhancing the myopia prevention and control.

Description

Myopia prevention and control out-of-focus lens

Technical Field

The utility model relates to a lens technical field specifically is myopia prevention and control out of focus lens.

Background

From the current market feedback, frame glasses are also the main correction mode and the mode for controlling the myopia development of most myopia groups. The main method is progressive multi-focus frame glasses, and the progressive multi-focus lens realizes the addition of near positive power through the power change on the central sight channel of the lens. It is characterized by that on the lens the myopia number can be gradually reduced from upper portion to lower portion, so that when the wearer looks at far distance and looks at near-distance object, it can adopt different number of degrees so as to attain the goal of relaxing and regulating. The peripheral defocus frame glasses slow down the elongation of the eye axis by reducing the principle of retina peripheral hyperopia defocus. With normal frame glasses (single vision lenses) there is a hyperopic defocus around the retina, i.e. the peripheral focus falls behind the retina. The out-of-focus lens can change the far-vision out-of-focus at the periphery of the retina into the near-vision out-of-focus, thereby inhibiting the increase of the axis of the eye to achieve the purpose of controlling the power. However, because the peripheral defocus in the peripheral out-of-focus frame glasses acts on the eyeball, there is some correlation between eyeball motion and myopia control effects. The problem of poor defocusing effect exists along with the deepening of the eye degree and the conversion of the visual area of teenagers, and technical innovation is performed on the basis of the existing lens aiming at the situation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a myopia prevention and control out of focus lens to provide in solving above-mentioned background art in the past the lens along with teenagers with the eye degree deepen with the visual area conversion, out of focus effect worsens' problem.

In order to achieve the above object, the utility model provides a following technical scheme: myopia prevention and control out of focus lens includes:

the lens body is provided with a first diopter area positioned in the center, a second diopter area annularly arranged in the first diopter area and a third diopter area surrounding the second diopter area, the lens body is formed by curing a resin monomer in a special mold, and the first diopter area comprises a hexagonal area positioned in the center of the lens body; the second diopter area and the third diopter area are both circular, and the outermost third diopter area is a blind area and is used for substrate molding; the second diopter area is densely distributed with a plurality of independent diopter units; the lens body is provided with micro-luminosity units which are distributed annularly, namely, outside the central area of the lens, within 2 to 5 circles, thousands of invisible micro-lenses are covered, each micro-lens forms a myopic defocusing light band in front of the retina, and a myopic defocusing area in front of the retina is formed.

Preferably, the first diopter zone and the third diopter zone have the same diopter and are different from the second diopter zone in diopter.

Preferably, the dioptric unit is configured in a circular shape of 0.1mm to 1.5mm, and the surface is convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm.

Preferably, the dioptric unit has a positive dioptric power added to the first dioptric zone or a negative dioptric power added to the first dioptric zone.

Preferably, the left eye and the right eye of the lens body have different focal power.

Preferably, the diopter of the lens body increases or decreases from the center to the outer in a ring shape, and the lens body has a plurality of micro-photometric cells distributed in a ring shape.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model ensures the user to see the requirement of the central visual area by arranging the hexagonal area at the center of the lens body, thereby improving the eye comfort level; and the peripheral second diopter area is provided with a plurality of diopter units for realizing the positive and negative increase of diopter, ensuring the requirements of users for watching the upper visual area, the lower visual area, the left visual area and the right visual area, realizing the defocusing conversion, avoiding the discomfort of teenagers with eyes and the deepening of the diopter, and enhancing the myopia prevention and control.

Drawings

Fig. 1 is the schematic view of the myopia prevention and control out-of-focus lens in the embodiment of the present invention.

In the figure: 1. a lens body; 2. a first diopter region; 3. a second diopter region; 4. a third refractive power zone; 5. a dioptric unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the myopia prevention and control out-of-focus lens includes: the lens comprises a lens body 1, wherein the lens body 1 is provided with a first diopter area 2 positioned in the center, a second diopter area 3 annularly arranged in the first diopter area 2 and a third diopter area 4 surrounded in the second diopter area 3; wherein, the first diopter area 2 comprises a hexagonal area positioned at the center of the lens body 1; the second diopter zone 3 and the third diopter zone 4 are both arranged in a circle; and the second dioptric zone 3 is densely packed with a plurality of individual dioptric units 5.

The utility model discloses an in the embodiment, lens body 1 is by resin monomer solidification shaping in dedicated mould, and it has first diopter district 2, second diopter district 3 that are located central authorities from interior to exterior, and third diopter district 4. Wherein, first diopter district 2 is divided into the hexagon district at lens body 1 center, an eye center for aim at the user, realize the normal head of user when wearing and look straight, realize central focusing, independent a plurality of dioptric unit 5 of second diopter district 3 densely covered, its diopter is compared and is changed in first diopter district 2, when aiming at user's direction upper and lower side or left and right sides distance, because eyeball and stadia change, so in order to protect eyes, avoid using eye fatigue, set up this visual area into diopter change's second diopter district 3, it becomes circular distribution and surrounds first diopter district 2, can be according to the corresponding setting of user's interpupillary distance, and outer third diopter district 4 then is the blind area, be used for the substrate shaping.

In a preferable embodiment, the first diopter zone 2 and the third diopter zone 4 have the same diopter and are different from the second diopter zone 3 diopter, so that the visual distance of a user changes when the user observes the left side, the right side or the upper side and the lower side, and different diopter requirements are provided.

The utility model discloses a dioptric unit 5 sets up to 0.1mm-1.5 mm's circular, and surface protrusion or sunken, and protruding or sunken height is 0.01 mu m-4 mu m, and dioptric unit 5 has relative first diopter district 2 and increases positive diopter or has relative first diopter district 2 and increases negative diopter when protruding or sunken, thereby accomplishes the diopter and changes, and the adaptation stadia uses, accomplishes out of focus and changes, guarantees to use eye comfort level.

In addition, the diopter of the lens body 1 increases or decreases from the center to the outside in a ring shape, and the lens can correct central ametropia, can also manufacture peripheral myopic defocusing, is equivalent to 360-degree panoramic gradual change, reduces the adjustment for eyes during middle and near distance viewing, and slows down the development of myopia.

In addition, the lens body 1 has micro-light units distributed annularly, namely, outside the central area of the lens, within 2 to 5 circles, thousands of invisible microlenses are covered, the dense invisible microlenses cannot be seen by naked eyes under normal conditions, but if a spotlight is used for projecting to a desktop, dense star points can be seen, like stars. Each microlens forms a myopic defocus band in front of the retina, which constitutes a myopic defocus area in front of the retina. The power of each microlens is carefully calculated to ensure that the distance of the produced myopic defocus region from the retina at various locations of the eyeball is substantially uniform, i.e., the amount of the myopic defocus reduction signal is the same regardless of the location, whether near the periretinal central region or near the equatorial (fornix) portion away from the retinal center. Even if the human eyes are gazing towards the periphery, such as looking downwards when looking near, the human eyes can still obtain clear central vision of the macula retinae from a single-vision lens area in the gap. The micro lens group around the fixation point of the lens still can project a near-sighted out-of-focus interval with the outline parallel to the rear wall of the retina in front of the retina, and even if the lens is fixed to the periphery, the high aspheric micro lens group of the lens still can form a circle of uniform non-visual deceleration signals around the retina to control the increase of the eye axis, so that the effect of near-sighted control is achieved.

In addition, the lens body 1 adopts the left and right eye diopter corresponding technology, considers the influence of the peripheral retina imaging quality on the myopia development, and is different from the prior vision solution, and considers the influence of the peripheral retina imaging quality on the myopia development. In addition to correcting central refractive error, peripheral hyperopia can be corrected or peripheral myopic defocus can be created and peripheral images projected onto or in front of the retina. It can send a "stop" signal to the eyes to control the lengthening of the eyeball, thereby alleviating the visual deterioration of the child. It has also been demonstrated that clear vision and myopic optical defocus are both strong impetus to reduce eye growth.

The present invention provides a lens in the above structure, the first diopter zone 2 has a function of focusing on the retina of the eye as a whole, and the second diopter zone 3 is made of a material having a function of focusing on the point of focusing on the retina of the eye, therefore, when the patient views an object using the lens that suppresses the development of myopia, the image of the object is formed on the retina, and simultaneously, the image is formed in the retina in front, that is, the lens has the following functions: while visually recognizing the image of the object formed by the first diopter region 2, the progression of myopia is suppressed by the image obtained in front of the retina by the refractive power other than the first diopter region 2, which can be said to be the same for the case of hyperopia except for the following: in the case of hyperopia, the image is focused on the back side of the retina of the eye by the second power zone 3, and therefore, the multi-zone positive optical defocus design can continuously provide myopic defocus even after the eyeball rotates.

In summary, the utility model ensures the user to see the requirement of the central visual area by arranging the hexagonal area at the center of the lens body 1, and improves the eye comfort level; and the peripheral second diopter area 3 is provided with a plurality of diopter units 5 for realizing diopter positive and negative increase, ensuring the user to see the visual area requirements of up and down and left and right, realizing defocusing conversion, avoiding the eye discomfort of teenagers, deepening the degree and enhancing the myopia prevention and control.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Myopia prevention accuse out of focus lens, its characterized in that includes:

the lens comprises a lens body (1), wherein the lens body (1) is provided with a first diopter area (2) located in the center, a second diopter area (3) annularly arranged on the first diopter area (2), and a third diopter area (4) arranged around the second diopter area (3), the lens body (1) is formed by curing a resin monomer in a special mold, and the first diopter area (2) comprises a hexagonal area located in the center of the lens body (1); the second diopter area (3) and the third diopter area (4) are both set to be circular, and the outermost third diopter area (4) is a blind area and used for substrate molding; and the second diopter area (3) is densely distributed with a plurality of independent diopter units (5); the lens body (1) is provided with micro-light-degree units which are distributed annularly, namely, outside the central area of the lens, within 2 to 5 circles, thousands of invisible micro-lenses are covered, each micro-lens forms a near-sighted out-of-focus light band in front of the retina, and a near-sighted out-of-focus area in front of the retina is formed.

2. The myopia prevention and control defocus lens of claim 1, wherein the first diopter zone (2) and the third diopter zone (4) are the same diopter and different from the second diopter zone (3) in diopter.

3. The myopia prevention and control defocusing lens according to claim 1, wherein the dioptric unit (5) is configured to be circular with a diameter of 0.1mm to 1.5mm, and the surface is convex or concave, and the height of the convex or concave is 0.01 μm to 4 μm.

4. A myopic prevention and control defocused lens according to claim 1, wherein the dioptric unit (5) has a positive dioptric power added to the first dioptric zone (2) or a negative dioptric power added to the first dioptric zone (2).

5. The myopia prevention and control out-of-focus lens according to claim 1, wherein the left and right eye out-of-focus diopters of the lens body (1) are different.

6. The myopia prevention and control out-of-focus lens according to claim 1, wherein the diopter of the lens body (1) increases or decreases from center to outside in a ring shape, and has a plurality of micro photometric cells distributed in a ring shape.

Images