CN208547782U - A kind of mist glasses with pre- myopia prevention function - Google Patents

Abstract

The utility model relates to a kind of mist glasses with pre- myopia prevention function, belong to optometric technology field.The utility model includes frame, temple and eyeglass, the eyeglass includes the goggles or concavees lens in top light area, and the mist in lower part light area regards convex lens, mist regards convex lens as round, oblong or ellipse, the highest point that mist regards convex lens is lower than the midpoint of entire eyeglass, the inside prism of the mist view convex lens additional substrate.The mist glasses of the utility model, upper and lower two optics subregions, glazing credit area see that at a distance, lower optics subregion is seen nearby, the adjusting pressure of glasses when seeing close using convex lens to releive, and teenager can wear upper class hour, do not influence pre- myopia prevention while study；It is thin in the outer thickness of prism simultaneously, it can reduce eyes convergence power required when seeing close, reduce cockeyed formation；And prism is upper thick and lower thin, the tilt angle of head when person capable of reducing using leans over a book, and cervical vertebra fatigue is effectively relieved.

Description

A kind of mist glasses with pre- myopia prevention function

Technical field

The utility model belongs to optometric technology field, and in particular to a kind of mist glasses with pre- myopia prevention function.

Background technique

Teen-age myopia mostly due to eye hypotelorism.According to relevant information, juvenile shortsightedness is with length Phase eye hypotelorism causer is common.The adjusting force of teenager's eyes is very strong, when books reach 7-10 lis at a distance from eyes It remains to see object clearly when rice, but if writing will make the dysregulation of eyes nervous, often with this distance reading so as to shape At refrangibility (modulability) myopia, so-called pseudo-myopia.If long-term adjustment is excessive, prevent ciliary muscle from flexibly stretching, by Excessively influx effect being caused to be reinforced in adjusting, extraocular muscle is made to apply pressure to eyeball, intraocular pressure increases, eye inner tissue's hyperemia, In addition teenager's eyeball tissue is delicate, wall of eyeball compression extends gradually, and eyeball antero posterior axis is elongated, has been more than that normal value is formed Axial myopia eye, so-called true myopia.

China's adolescent myopia rate is higher and higher, and myopia becomes younger increasingly severe, and how pre- myopia prevention is asked as society Topic.Refer to that when (or even when there is not myopia) there is early stage myopia, A nearsighted person (for example can read when seeing close depending on cure Book, with computer), wear orthoptoscope (convex lens) glasses, the adjusting pressure of eyes when Lai Shuhuan sees close has on orthoptoscope and sees closely Thing have amplification effect, but have on orthoptoscope and see that distant view object can be more unclear, as in cloud and mist, therefore this method is known as mist view Cure, also known as cloud and mist method.

Traditional mist glasses are a convex lens, see that distant view object can be unclear since its optical principle has on orthoptoscope, such as picture In cloud and mist, thus can not opening or cleaning blackboard, attend class wearing so being not suitable for student, be only suitable for being in wearing when doing one's assignment.

Utility model content

The purpose of this utility model is a kind of using the pre- myopia prevention of mist view principle in order to propose, but does not influence student and attend class When the glasses worn.

Purpose of the utility model is realized as follows: a kind of mist glasses with pre- myopia prevention function, including frame, Temple and eyeglass, the eyeglass include top light area goggles or concavees lens and the mist in lower part light area view convex lens, mist Convex lens is regarded as semicircle, round, oblong or ellipse, the highest point that mist regards convex lens is lower than the midpoint of entire eyeglass, The inside prism of the mist view convex lens additional substrate.

Further, the mist regards convex lens and its additional prism as integral type casting, and mist regards convex lens and top light The goggles or concavees lens in area are integral type casting.

Further, prism thick middle both sides are thin concentrates light to centre, can reduce eyes required when seeing close Convergence power, effectively less fatigue when seeing close.

Further, thickness is thin below above the prism reflects light downwards, head when person capable of reducing using leans over a book Tilt angle, be effectively relieved cervical vertebra fatigue.

The mist glasses of the utility model, upper and lower two optics subregions, glazing credit area see that at a distance, lower optics subregion is seen closely Place, the adjusting pressure of eyes when seeing close using convex lens to releive, teenager can wear, not influence pre- while study upper class hour Myopia prevention；Setting thin in the outer thickness of prism concentrates light nearby to centre simultaneously, can reduce eyes collection required when seeing close With joint efforts, cockeyed formation is reduced；And the upper thick and lower thin setting of prism reflects light downwards, person capable of reducing using leans over a book When head tilt angle, be effectively relieved cervical vertebra fatigue.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the vertical view schematic diagram of the utility model；

Fig. 3 is the side view schematic diagram of the utility model.

In figure: 1- frame, 2- temple, 3- eyeglass, 31- goggles, 32- mist regard convex lens, 4- prism.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

A kind of mist glasses with pre- myopia prevention function as shown in Figure 1, including frame 1, temple 2 and eyeglass 3, the mirror Piece 3 includes the goggles 31 in top light area, if wearer has pseudo-myopia, top light area may be concavees lens, and under The mist in the area Bu Guang regards convex lens 32, and mist regards convex lens 32 as semicircle, and mist regards the highest point of convex lens 32 lower than entire eyeglass 3 Midpoint, the inside prism 4 of mist view 32 additional substrate of convex lens, teenager wears the mist glasses when use, regards from mist convex Lens 32 are read a book, and the adjusting pressure of eyes when seeing close using mist view principle to releive, looking at the blackboard from goggles 31 does not influence to attend class, It being capable of pre- myopic-preventing generation；Simultaneously because mist view convex lens 32 only has middle section, book only can be seen clearly from middle section, On hair to prevent strabismus, the reading habit of wearer is corrected.

Preferably, mist regards convex lens 32 and its additional prism 4 as integral type casting, and mist regards convex lens 32 and goggles 31 It is cast for integral type casting for integral type, integrated design makes eyeglass 3 seem smoother complete, unsuitable fragmentation.

Light is concentrated to centre as shown in Fig. 2, 4 thick middle both sides of prism are thin, can reduce eyes collection required when seeing close With joint efforts, effectively less fatigue when seeing close, reduces cockeyed formation.

As shown in figure 3, thin below thick above prism 4 reflect light downwards, head when person capable of reducing using leans over a book Cervical vertebra fatigue is effectively relieved in tilt angle.

In other embodiments, mist regards convex lens 32 and is ok as other shapes such as round, oblong or ellipses.

Claims (4)

1. a kind of mist glasses with pre- myopia prevention function, including frame, temple and eyeglass, it is characterised in that: the eyeglass The mist of goggles or concavees lens and lower part light area including top light area regards convex lens, and mist regards convex lens as semicircle, circle Shape, oblong or ellipse, the highest point that mist regards convex lens are lower than the midpoint of entire eyeglass, and the mist view convex lens adds base The inside prism in bottom.

2. a kind of mist glasses with pre- myopia prevention function according to claim 1, it is characterised in that: the mist view is convex Lens and its additional prism are integral type casting, and the goggles or concavees lens that mist regards convex lens and top light area is integral types Casting.

3. a kind of mist glasses with pre- myopia prevention function according to claim 1, it is characterised in that: in the prism Between thick both sides are thin concentrates light to centre.

4. a kind of mist glasses with pre- myopia prevention function according to claim 1, it is characterised in that: on the prism It is thin below face is thick to reflect light downwards.