KR101115496B1 - a device for positioning the orthokeratology lens in center of cornea - Google Patents

a device for positioning the orthokeratology lens in center of cornea Download PDF

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Publication number
KR101115496B1
KR101115496B1 KR1020100050468A KR20100050468A KR101115496B1 KR 101115496 B1 KR101115496 B1 KR 101115496B1 KR 1020100050468 A KR1020100050468 A KR 1020100050468A KR 20100050468 A KR20100050468 A KR 20100050468A KR 101115496 B1 KR101115496 B1 KR 101115496B1
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South Korea
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lens
corneal
cornea
soft
center
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KR1020100050468A
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Korean (ko)
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KR20110130905A (en
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이무석
마기중
오현진
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이무석
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Priority to KR1020100050468A priority Critical patent/KR101115496B1/en
Priority to PCT/KR2011/003196 priority patent/WO2011149196A2/en
Publication of KR20110130905A publication Critical patent/KR20110130905A/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
    • G02C7/047—Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
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  • Heart & Thoracic Surgery (AREA)
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Abstract

The present invention is a configuration corresponding to the sclera in which the corneal correction lens is located in the center of the soft lens to prevent movement in front of the eyeball corneal correction lens is always positioned at the same position of the cornea to the conventional corneal correction lens movement The present invention relates to a corneal center fixation device for corneal orthodontic lenses to prevent side effects.

Description

A device for positioning the orthokeratology lens in center of cornea}

The present invention is a configuration corresponding to the sclera in which the corneal correction lens is located in the center of the soft lens to prevent movement from the front of the eyeball corneal correction lens is always fixed to the same position corresponding to the center of the cornea conventional cornea The present invention relates to a corneal center fixation device for corneal orthodontic lenses to prevent side effects due to movement of the corrective lens and deviation from the center.

In general, contact lenses are classified into hard lenses and soft lenses, and the circulation of tears is very important for those who wear contact lenses regardless of which lens they wear.

In addition, the hard lens (corneal correction lens) has the advantage of smooth tear circulation because a thick tear layer is formed between the lens and the cornea than the soft lens, and the cornea is in contact with the inner surface of the corneal revision lens because the curve of the periphery is larger than the center. Due to the thick tear layer of the cornea, the surface tension is weakened and the movement is easy.

In other words, when a person wearing a contact lens closes his or her eyes, the lens is completely immersed in the tears by the eyelids, and when the eyes are opened, the tears around the lens flow into the center of the cornea.

In addition, if the human eye does not maintain constant moisture at all times as described above, the contact lens wearer may have a dry eye phenomenon in which moisture is insufficient or corneal erosion such as edema.

Therefore, various tear-circulating methods have been applied to the conventional oxygen-permeable hard contact lenses. Looking at the example, the concave optics for collecting tears are formed in the entire central portion of the contact lens, so that the upper or lower part of the contact lens is worn after wearing the contact lens. As the contact lens moved when seeing or blinking, tears were collected in the indentation optics, and the method was used to push the tears when looking at the front.

In connection with such a technique, a configuration of an oxygen supply lens is disclosed in Patent 444788. In the configuration, as shown in FIG. 1, a contact lens mounted on the cornea 6 includes an indentation optical unit 2 and an indentation thereof. With the peripheral part 3 formed in the curved surface of the radius larger than the recessed optical part 2 on the outer side of the optical part 2, and the blend 4 provided in the interface of the said recessed optical part 2 and the peripheral part 3, and And a myriad of waves 5 are formed on the blend 4 of the contact lenses so that tears outside the contact lenses circulate to the concave optics 2 through the waves 5.

According to the present invention configured as described above, whenever the user wearing the contact lens blinks, the tears of the peripheral portion 3 enters into the indentation optical portion 2 through the wave 5 formed in the blend 4 and is discharged. Since it is made smoothly, it is possible to prevent the occurrence of diseases such as dry eye phenomenon, swelling, corneal erosion caused by wearing the contact lens.

However, such a contact lens has a disadvantage that the lens is not fixed at a certain position of the cornea and frequently moves because the contact lens is not closely adhered to the cornea, and thus the lens cannot be accurately recognized. Is there.

In addition, there is a problem that the user is in contact with the contact lens frequently to correct it by moving the contact lens, so that contamination is easily generated, resulting in various eye diseases.

An object of the present invention for improving the conventional problems as described above, the lens for vision correction can always be located in the right position of the optical portion of the cornea, and prevents contamination due to the movement of the lens or poor recognition of the surrounding objects It is possible to provide a corneal center position fixation device of the corneal correction lens that can be easily supplied to the cornea through the lens and oxygen and moisture is easily supplied to the cornea.

In order to achieve the above object, the present invention provides a configuration in which the corneal correction lens is located at the center of the soft lens installed in the shape corresponding to the sclera so as to prevent movement from the front of the eyeball. The position is fixed to provide a corneal center position fixing device of the corneal correction lens to prevent side effects due to the conventional hard lens movement and off-center.

In addition, the present invention provides a corneal center position fixing device of the corneal correction lens, wherein the soft lens and the corneal correction lens are separated from each other, and the positioning means for supporting the corneal correction lens is further provided at the center of the soft lens.

In addition, the present invention provides a corneal center position fixing device of the corneal correction lens is composed of a soft lens and a corneal correction lens integrally formed, the metabolic space is provided on one side of the corneal correction lens.

In addition, the present invention is a cornea consisting of a structure in which the soft lens and the corneal correction lens have a separate structure as a stopper for supporting the end portion of the corneal correction lens at the center of the soft lens and having a support portion upwardly at the end edge of the corneal correction lens. A corneal center fixation device for orthodontic lenses is provided.

As described above, according to the present invention, the corneal correction lens for vision correction is always located in the optical position of the cornea, and prevents contamination or poor recognition of the surrounding objects due to the movement of the corneal correction lens. Easily supplied to the cornea through the contaminants are effective to discharge.

1A and 1B are a side view and a use state diagram showing a conventional lens, respectively.
Figure 2 is a perspective view showing a wearing state of the corneal correction lens according to the present invention.
Figure 3 is a side view showing a wearing state of the corneal correction lens according to the present invention.
4 is a sectional view showing main parts of the corneal correction lens according to the present invention.
Figure 5 is a cross-sectional view showing a wearing state of the corneal correction lens according to another embodiment of the present invention.
Figure 6 is a cross-sectional view showing a wearing state of the corneal correction lens according to another embodiment of the present invention.

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

Figure 2 is a perspective view showing a wearing state of the corneal correction lens according to the invention, Figure 3 is a side view showing a wearing state of the corneal correction lens according to the invention, Figure 4 shows a corneal correction lens according to the invention 5 is a cross-sectional view showing a wearing state of the corneal revision lens according to another embodiment of the present invention, Figure 6 is a cross-sectional view showing a wearing state of the corneal revision lens according to another embodiment of the present invention. to be.

The present invention, the corneal correction lens 210 in the corneal center of the eye (E) forming the optical portion 100 through the cornea 101, the lens 103 and the retina 105 is connected to the optic nerve to the light is introduced. The soft lens 230 is provided at one side thereof to cover the cornea 101 and the sclera 120 simultaneously.

In this case, the second lens 210 is positioned at the center of the soft lens 230 installed to prevent movement from the front of the eyeball E in a shape corresponding to the sclera 120 and covering at least part of the cornea and the sclera. do.

In addition, the soft lens 230 preferably covers the entire exposed portion of the cornea and sclera.

In addition, the corneal correction lens 210 provided at the center of the soft lens 230 is manufactured in one piece or separately manufactured with the soft lens, and is formed in such a way that the corneal correction lens is in close contact with one side of the soft lens.

At this time, the soft lens is configured to press the corneal correction lens on the cornea and to adhere closely to the cornea. The soft lens performs the role of a cover material irrelevant to vision correction, and the corneal correction lens performs an RGP hard lens for correcting vision.

In addition, when the soft lens 230 and the corneal correction lens 210 are manufactured separately, positioning means 310 for supporting the corneal correction lens 210 are further provided on one side of the soft lens 230. .

At this time, the positioning means 310 is formed as a mounting recess 311 recessed to the upper side in a size that can be accommodated corresponding to the corneal correction lens 210 and the locking step 313 provided around the edge.

Subsequently, a stopper 233 is further provided at the center of the soft lens 230 to support an end portion of the corneal correction lens, and a support portion 213 is provided on the end edge of the corneal correction lens 210.

On the other hand, the soft lens 230 and the corneal correction lens 210 is produced integrally, the metabolic space 217 is provided on one side of the corneal correction lens 210.

In addition, the soft lens 230 is integrally provided with a plurality of metabolic holes 237 to allow the discharge of waste, inflow of oxygen, and movement of moisture.

At this time, the metabolic hole 237 is formed along the edge circumference of the corneal revision lens 210 and is formed to maintain a constant angle (a) with the soft lens 230.

The operation of the present invention having the above configuration will be described.

As shown in FIGS. 2 to 6, the eyeball E has a refractive power and the light passing through the cornea 101 which is directly supplied with oxygen in the air is a transparent convex lens, which is most convex when looking at an infinite distance. Thinner and nearer the convexity is adjusted convex to pass through the lens 103 to perform the function of forming an image exactly on the retina 105 while forming an image on the retina 105 that functions as a film of the camera is connected to this Through the optic nerve, images can be discerned.

At this time, the sclera 120 positioned around the cornea 101 maintains the shape of the eye with white fiber tissue regardless of visual acuity.

And, the corneal correction lens 210 made of an RGP hard lens for sight adjustment is placed on the cornea 101 as described above.

In other words, the lens is placed in the center of the cornea 101 so that the lens is placed in the concentric region with the lens 103 so that the correct image can be formed on the retina. There was no structure to support it, so it was moved frequently.

Therefore, the lens for vision control of the present invention, when the corneal correction lens 210 for adjusting the vision is positioned in the center of the soft lens 230 through the positioning means 310 is the center of the corneal correction lens 210 The central location of the cornea solves this problem.

At this time, the soft lens 230, the shape corresponding to the sclera 120 is prevented when worn on the front of the eye (E) so that the corneal correction lens 210 can be always positioned and fixed in place. do.

On the other hand, the soft lens 230 and the corneal correction lens 210 can be fixed without the use of the positioning means, in this case, the stopper that the end of the corneal correction lens is supported in the center of the soft lens 230 ( 233 is further provided to the support portion 213 is inserted into the end edge of the corneal revision lens 210 is supported by the insertion portion 213 is prevented from being separated to position in position.

In addition, the positioning means 310 is composed of a mounting recess 311 recessed to the upper side corresponding to the corneal revision lens 210 and a locking jaw 313 provided around the edge of the cornea. When the corrective lens 210 is inserted, the soft lens and the corneal correction lens are brought into contact with the eye E substantially in the same plane.

On the other hand, the soft lens 230 and the corneal correction lens 210 is produced integrally, the metabolic space 217 is provided on one side of the corneal correction lens 210 to correct the vision while moving the front of the eyeball To prevent it.

In addition, the soft lens 230 has at least one metabolic hole 237 penetrated to allow the discharge of waste, the inflow of oxygen, and the movement of moisture, thereby enabling smooth metabolism.

At this time, the metabolic hole 237 is formed along the edge of the corneal revision lens 210, the upper periphery of the cornea, the circumference of the sclera or selectively so as to supply oxygen and moisture to the cornea and sclera.

In addition, the metabolic hole 237 is formed along the edge circumference of the corneal revision lens 210 to maintain a constant angle (a), not vertical, on the surface of the soft lens 230 to have a maximum area in the lens. The inflow and filling amount of oxygen, moisture, etc. are maximized inside, so that smooth metabolism is possible.

As described above, the metabolism is maintained smoothly in the eye while preventing the movement of the corneal correction lens to correct the vision.

101 ... cornea 103 ...
120 ... Scleral 210 ... Soft Lens
230 Corneal Correction Lens 311
313.Jagged Jaw

Claims (5)

delete The corneal orthodontic lens 210 may be positioned at the corneal center of the eye E forming the optical unit 100 through the cornea 101 into which the light is introduced, the lens 103 and the retina 105 to which the optic nerve is connected. At this time, the soft lens 230 for covering the cornea 101 and the sclera 120 at one side thereof is provided to determine the position of the corneal correction lens.
The soft lens 230 is provided with a plurality of metabolic holes 237 integrally,
The soft lens 230 is manufactured by separating the corneal correction lens 210 in a central portion of the soft lens 230 which is installed to prevent movement from the front of the eyeball E in a shape corresponding to the sclera 120. Positioning means 310 for supporting the corneal correction lens 210 is further provided on one side of,
The positioning means 310 is fixed to the corneal center of the corneal correction lens formed by the mounting recess 311 corresponding to the corneal correction lens 210 and the locking jaw 313 provided around the edge thereof. Device The corneal orthodontic lens 210 may be positioned at the corneal center of the eye E forming the optical unit 100 through the cornea 101 into which the light is introduced, the lens 103 and the retina 105 to which the optic nerve is connected. At this time, a soft lens 230 for covering the cornea 101 and the sclera 120 at one side thereof is provided to determine the position of the corneal correction lens.
The soft lens 230 is provided with a plurality of metabolic holes 237 integrally,
The soft lens 230 is manufactured by separating the corneal correction lens 210 in a central portion of the soft lens 230 which is installed to prevent movement from the front of the eyeball E in a shape corresponding to the sclera 120. Corneal center position of the corneal revision lens composed of a stopper 233 which is installed to support the end of the corneal revision lens in the center of the support through the support portion 213 which is raised to the end edge of the corneal revision lens 210 Fixture delete The method of claim 2, wherein the metabolic hole (237) is formed in the soft lens along the edge of the corneal correction lens 210, corneal correction, characterized in that the through-holes are maintained so as to maintain a constant angle (a) not perpendicular to the soft lens. Lens corneal center fixation device
KR1020100050468A 2010-05-28 2010-05-28 a device for positioning the orthokeratology lens in center of cornea KR101115496B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020100050468A KR101115496B1 (en) 2010-05-28 2010-05-28 a device for positioning the orthokeratology lens in center of cornea
PCT/KR2011/003196 WO2011149196A2 (en) 2010-05-28 2011-04-29 Multifunctional lens having tear circulation and oxygen circulation functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100050468A KR101115496B1 (en) 2010-05-28 2010-05-28 a device for positioning the orthokeratology lens in center of cornea

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KR20110130905A KR20110130905A (en) 2011-12-06
KR101115496B1 true KR101115496B1 (en) 2012-03-05

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10025114B2 (en) * 2013-03-13 2018-07-17 Johnson & Johnson Vision Care, Inc. Hydrogel lens having raised portions for improved oxygen transmission and tear flow
KR200477407Y1 (en) * 2014-05-19 2015-06-05 (주)리치아일랜드 Contact lens
CN117224315B (en) * 2023-11-14 2024-03-08 深圳市新产业眼科新技术有限公司 Comfortable cornea shaping mirror

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5066660U (en) 1973-10-17 1975-06-14
KR100599024B1 (en) * 2005-01-19 2006-07-12 범진선 Orthokeratology contact lens with penetration hole
US20060290882A1 (en) 2005-06-27 2006-12-28 Paragon Vision Sciences, Inc. Laminated contact lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5066660U (en) 1973-10-17 1975-06-14
KR100599024B1 (en) * 2005-01-19 2006-07-12 범진선 Orthokeratology contact lens with penetration hole
US20060290882A1 (en) 2005-06-27 2006-12-28 Paragon Vision Sciences, Inc. Laminated contact lens

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