KR20110118236A - Progressive hard contact lenses for presbyopia - Google Patents

Progressive hard contact lenses for presbyopia Download PDF

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Publication number
KR20110118236A
KR20110118236A KR1020100037723A KR20100037723A KR20110118236A KR 20110118236 A KR20110118236 A KR 20110118236A KR 1020100037723 A KR1020100037723 A KR 1020100037723A KR 20100037723 A KR20100037723 A KR 20100037723A KR 20110118236 A KR20110118236 A KR 20110118236A
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KR
South Korea
Prior art keywords
lens
presbyopia
hard contact
center
contact lens
Prior art date
Application number
KR1020100037723A
Other languages
Korean (ko)
Inventor
김영중
Original Assignee
(주) 해피비전
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by (주) 해피비전 filed Critical (주) 해피비전
Priority to KR1020100037723A priority Critical patent/KR20110118236A/en
Publication of KR20110118236A publication Critical patent/KR20110118236A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/043—Translating type
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/045—Sectorial configuration

Abstract

The present invention relates to a contact lens, and more particularly, by providing a hard contact lens that allows a long distance to be viewed in the center and a short distance to the periphery thereof, there is no inconvenience at the same time and at the same time, the conventional soft lens The present invention relates to a presbyopia hard focus lens for solving presbyopia and correcting presbyopia vision in a spectacle lens and making it convenient to use by the upper and lower eyelids.
This feature of the present invention is characterized in that the lens center circle for viewing the distance is formed in the vicinity of the center, the lens near-eye part is located near the lens center for the near lens is formed and is provided with a near lens focal focus A hard contact lens is provided.

Description

Presbyopia hard contact lens for presbyopia {PROGRESSIVE HARD CONTACT LENSES FOR PRESBYOPIA}

The present invention relates to a contact lens, and more particularly, by providing a hard contact lens that allows a long distance to be viewed in the center and a short distance to the periphery, thereby making it inconvenient even in simultaneous vision and translating vision. The present invention relates to a presbyopic focal hard contact lens for solving presbyopia in conventional soft lenses and spectacle lenses, correcting presbyopia, and making it easier to use by the upper and lower eyelids.

Generally, to protect the eyes, there are spectacle lenses for eyeglasses, and there are contact lenses in contact with the eyes, thereby protecting eyesight or securing a field of view.

In particular, many people work mainly with computers, play online / offline games, do general paperwork, and students perform a lot of near-field work, such as reading a lot of books and studying.

Because of this near-field work, people's eyes will see near objects a lot of time, which will need to reinforce the eye's ability to see near distances.

This short-range work eliminates a number of eye symptoms, cumulative traumatic disorders, skin symptoms, and mental nervous system symptoms associated with stable fatigue, computer vision syndrome (CVS), and visual display terminal (VDT) syndrome. Due to these reasons, the age of presbyopia is getting faster.

In particular, people wearing contact lenses in the past enter the presbyopia, but the situation is not prepared for contact lenses for the presbyopia generation.

That is, in the focal soft contact lens as shown in FIG. There will be a phenomenon to see. Therefore, in the case of presbyopia, the unclear surroundings cannot be looked at well.

And because the size is larger than the cornea, there is almost no lens movement at the time of blinking, so in the case of presbyopia (Simultaneous Vision), presbyopia, the sharpness of vision is inferior to the surroundings. This is because the presbyopia age group has a smaller pupil size, in particular, because the number of muscles in the center of the presbyopia decreases, the vision of day vision falls.

Also, as in FIG. 2, the focal spectacle lens is designed for the upper end, near the lower end, and for intermediate distances as it progresses between or around the user, so that the user sees the surrounding with a translating vision. will be.

In the case of such a focal eyeglass lens, a top leap phenomenon occurs due to the prism effect due to the distance between the vertices of the cornea and the lower part of the cornea.

In addition, the side view is blurred by astigmatism, so there is inconvenience to turn your head.

In particular, the contact lens users are reluctant to wear glasses for aesthetic or administrative reasons, even though there is a focal lens that fits the presbyopia, there is a problem that the contact lens users are reluctant.

The present invention for solving the above problems by providing a hard contact lens to be able to see the distance to the center and the near to the surroundings, there is no inconvenience at the same time and at the same time, conventional soft lenses, glasses To solve the problem in the lens and to correct the presbyopia, the purpose of the upper and lower eyelids to make it easier to use.

In addition, the eccentricity of the near part of the near-field is less than the central far-field part of the distant view, so that even if the distance and the near field is switched, the eye of the presbyopia does not exert excessive strain on the lens.

In particular, even if there is eye dryness in the presbyopia and axial movement of the pupil, it prevents eye dryness and makes it possible to see far and near conveniently even if there is axial movement.

According to the present invention for achieving the above object, the lens center faraway portion 20 to be viewed from a long distance is formed in the vicinity of the center of the lens center faraway portion 20 is located near the lens to see near There is provided a presbyopia focal hard contact lens characterized in that the molten portion 30 is formed.

In this regard, the lens center part 20 may be viewed by a long distance, and the lens peripheral part 30 is provided to be able to see the near distance, the lens center part 20 and the lens peripheral part. 30 may be made of a hard contact lens.

In addition, the radius of the lens center portion 20 may be 1.5 ~ 2mm, the radius of the lens peripheral portion 30 may be provided with 1.5 ~ 5.5mm.

The present invention is configured as described above by providing a hard contact lens to be able to see the distance to the center and to see the near distance, there is no inconvenience at the same time and at the same time, in the conventional soft lens, eyeglass lens It solves the problem and corrects presbyopia, and has an excellent effect that can be conveniently used by the upper and lower eyelids.

In addition, the eccentricity of the near part of the near-field is less than the central far-field part of the distant view, so that even if the distance and the near field is switched, the eye of the presbyopia does not exert excessive strain on the lens.

In particular, even if there is eye dryness in the presbyopia and axial movement of the pupil, it prevents eye dryness and makes it possible to see far and near conveniently even if there is axial movement.

1 is an exemplary explanatory diagram of a soft contact lens of the prior art.
2 is an exemplary explanatory view of a conventional closed focal spectacle lens.
3 is an explanatory view of an example in the eyeball.
4 is an explanatory diagram of an example in the eye.
5 is an exemplary view of a hard contact lens according to the present invention.
6 is an exemplary structural diagram for a hard contact lens according to the present invention.
7 is a graph of the eccentric portion in the lens center portion of the hard contact lens according to the present invention.
8 is a graph of the eccentric portion in the lens peripheral muscle portion of the hard contact lens according to the present invention.
Figure 9 is an illustration of the gaze when viewing the distance in the state wearing a hard contact lens according to the present invention.
10 is an exemplary view of the eye when viewing the distance in the state wearing a hard contact lens according to the present invention.
Figure 11 is an illustration of the eye when viewing the near in the state wearing a hard contact lens according to the present invention.
In FIG. 10 and FIG. 11, the black circles indicate the pupils. In FIG. 10, eyes are stared toward the center of the lens, and in FIG. 11, the eyes move toward the lower part of the lens.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

That is, in the presbyopia-focused hard contact lens 10 according to the present invention, as shown in Figs. 5 to 11, the lens center circle portion 20 to be viewed at a distance is formed near the center, the lens center circle portion ( And a presbyopia-focal focal hard contact lens provided with a lens peripheral portion 30 positioned near the periphery of the lens 20 to see near.

Therefore, it is provided so that the distance can be seen by the lens center portion 20, and the near distance by the lens peripheral portion 30 is provided.

In particular, the presbyopia-focused hard contact lens 10 according to the present invention is composed of the lens center circle portion 20 and the lens peripheral portion 30 is made of a hard contact lens.

And when looking at the structure of the hard contact lens 10 according to the present invention, as shown in Fig. 5, 6, etc., the radius of the lens center portion 20 positioned in the center is 1.35 ~ 2mm, while The radius of the lens peripheral muscle portion 30 composed of the periphery of the lens center portion 20 is provided with 1.35 ~ 5.5mm.

In this case, when the lens center part 20 is smaller than 1.35 mm, it may be difficult to see even if it is far, and when it is 2 mm or more, the lens center part 20 may be too wide to exceed the range of the lens peripheral part 30. It is preferable that the portion 20 is made of 1.5 mm.

In addition, the eccentricity of the lens peripheral portion 30 compared to the lens center portion 20 is provided to be smaller.

According to the presbyopia focal focal contact lens 10 according to the present invention, the conventional presbyopia focal focal lens is common, but the presbyopia focal focal hard contact lens as a hard contact lens is not yet used have. On the other hand, the soft lens has presbyopia, but the effect is not satisfactory due to dry eye and axial movement of the pupil due to aging, so the frequency of use is not high.

Since the first generation of contact lenses wearing in our country is now in the mid 40s, refractors who do not want to wear glasses have presbyopia, so they have to wear near-glass magnifier glasses or lean glasses.

Accordingly, the presbyopia-focused hard contact lens 10 according to the present invention has a high satisfaction of the wearer at the same time while moving. Simultaneous vision allows you to look around without moving the eyes, but to see near and far without moving the eyes. This means that you can see near and far by the brain's selection function. ) Is to look around while moving your eyes so that you can see far and near in one hard contact lens.

As described above, the presbyopia focal hard contact lens 10 according to the present invention is designed to satisfy both simultaneous and mobile time.

In particular, since there is no distance between the vertices, the leap phenomenon is insignificant and there is no inconvenience in lateral view.

Therefore, as the presbyopia generation among contact lens wearers gradually increases, the demand for presbyopia hard focus lenses will increase rapidly.

While using the presbyopia focal point hard contact lens 10 according to the present invention, as shown in FIGS. 9 and 10, when viewed from a long distance, it is seen through the center of the lens, while when viewed from a close range as shown in FIG. 11. This is slightly down, so you can see both near and far.

And the hard contact lens 10 is held by the upper eyelid, and the lower eyelid, and the eye is charged, so that the near eye through the lens peripheral portion 30 with a degree of joining so that you can see the short distance conveniently. Will be.

In particular, according to the hard contact lens 10 according to the present invention, there is an effect of presbyopia vision correction (addition degree + 1.00D ~ + 4.00D), and also the surface of the conventional conventional soft-decreased soft lens is low or low The problem that is difficult to look at the long distance is solved, and further, the general comfort is solved, as is the case with glasses, and the problem due to the prism effect is difficult to solve.

That is, the eccentricity of the lens peripheral portion 30 is smaller than that of the lens center portion 20, and a presbyopia user looks at the distance using the lens center portion 20, and the lens peripheral portion The lens should act when the lens is close to (30), but because the eccentricity of the lens peripheral muscle portion 30 becomes smaller, the action of the lens may be less, thereby reducing eye fatigue.

The embodiments of the present invention have been described in detail above, but since the embodiments have been described so that those skilled in the art to which the present invention pertains can easily carry out the present invention, The technical spirit of the present invention should not be interpreted limitedly.

10: hard contact lens 20: lens center part
30: lens peripheral portion

Claims (3)

The lens center far-away portion 20 to see the distance is formed in the center,
A presbyopia-focused hard contact lens for presbyopia, characterized in that the lens peripheral portion 30 is located to the periphery of the lens center circle portion 20 to see near.
The method of claim 1,
To see the distance by the lens center portion 20,
It is provided to see the near by the lens peripheral muscle portion 30,
Compared to the lens center portion 20 is provided so that the eccentricity of the lens peripheral muscle portion 30 is smaller,
The lens center circle portion 20 and the lens peripheral portion 30 is made of a hard contact lens for presbyopia, characterized in that made of a hard contact lens.
3. The method according to claim 1 or 2,
The radius of the lens center portion 20 is 1.5 ~ 2mm,
The presbyopia-focused hard contact lens for presbyopia, characterized in that the radius of the lens peripheral portion 30 is provided with 1.5 ~ 5.5mm.
KR1020100037723A 2010-04-23 2010-04-23 Progressive hard contact lenses for presbyopia KR20110118236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100037723A KR20110118236A (en) 2010-04-23 2010-04-23 Progressive hard contact lenses for presbyopia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100037723A KR20110118236A (en) 2010-04-23 2010-04-23 Progressive hard contact lenses for presbyopia

Publications (1)

Publication Number Publication Date
KR20110118236A true KR20110118236A (en) 2011-10-31

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KR1020100037723A KR20110118236A (en) 2010-04-23 2010-04-23 Progressive hard contact lenses for presbyopia

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101578327B1 (en) 2015-06-04 2015-12-16 구오섭 Contact lens for presbyopia
US11294202B2 (en) 2016-08-12 2022-04-05 Seong Jun Lee Contact lens for presbyopia

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101578327B1 (en) 2015-06-04 2015-12-16 구오섭 Contact lens for presbyopia
US11294202B2 (en) 2016-08-12 2022-04-05 Seong Jun Lee Contact lens for presbyopia

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