JP2015036080A5 - Contact lenses for straightening corneal cross-linking - Google Patents
Contact lenses for straightening corneal cross-linking Download PDFInfo
- Publication number
- JP2015036080A5 JP2015036080A5 JP2013168689A JP2013168689A JP2015036080A5 JP 2015036080 A5 JP2015036080 A5 JP 2015036080A5 JP 2013168689 A JP2013168689 A JP 2013168689A JP 2013168689 A JP2013168689 A JP 2013168689A JP 2015036080 A5 JP2015036080 A5 JP 2015036080A5
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- Prior art keywords
- cornea
- pressing
- region
- curvature
- curved surface
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- Legal status (The legal status 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 status listed.)
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Links
- 238000004132 cross linking Methods 0.000 title claims description 10
- 210000004087 Cornea Anatomy 0.000 claims description 25
- 230000004438 eyesight Effects 0.000 claims description 3
- 201000002287 keratoconus Diseases 0.000 claims description 3
- 230000002093 peripheral Effects 0.000 claims 5
- 201000009310 astigmatism Diseases 0.000 description 2
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 208000001491 Myopia Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Description
本発明は、一定時間装着して、患者の角膜の形状を変えて、近視、遠視、乱視あるいは円錐角膜が矯正された状態で、これを固定するための矯正角膜クロスリンキング用コンタクトレンズに関する。 The present invention, by mounting a predetermined time, by changing the shape of the patient's cornea, myopia, hyperopia, in a state in which astigmatism or keratoconus is corrected relates to straightening corneal cross-linking contact lenses for anchoring .
本発明は、クロスリンキングによって強度が増大した角膜の挙動を解析して、視力又は乱視矯正用コンタクトレンズによって正確に角膜を矯正し、且つ、その状態を固定することができる矯正角膜クロスリンキング用コンタクトレンズを提供することを課題とする。 The present invention analyzes the behavior of the cornea whose strength has been increased by cross-linking, corrects the cornea accurately with a contact lens for correcting visual acuity or astigmatism, and can fix the state of the cornea. it is an object of the present invention to provide a lens.
本発明者は、鋭意研究の結果、クロスリンキングにより強度が向上された角膜が眼球の弾性復元力によって前方に突出するということを見出し、この復元力を考慮して、目標の裸眼視力を得られるようにした矯正角膜クロスリンキング用コンタクトレンズを発明した。
As a result of diligent research, the present inventor has found that the cornea whose strength has been improved by cross linking protrudes forward due to the elastic restoring force of the eyeball, and in consideration of this restoring force, the target naked eye vision can be obtained as to the invented a corrective corneal cross-linking for contact lenses.
Claims (5)
前記押圧領域は、角膜に装着されたときに、角膜ドームの中央を押圧する位置で凸湾曲面状に突出されていて、角膜に凹湾曲面を形成するようにされ、
前記リリーフ領域は、前記押圧領域の外周を囲む位置に形成された、断面が凹円弧形状の環状凹部からなり、
前記リリーフ領域の外周を囲む位置に設けられ、角膜に装着されたときに、角膜の輪郭に沿うような形状のアンカー領域と、
このアンカー領域の外周を囲む周縁部と、
を有してなり、
角膜に形成しようとする前記凹湾曲面の曲率をＲ0とし、前記押圧領域の凸湾曲面の曲
率をＲSとしたとき、ＲS＝Ｒ0＋５．０Ｄ〜Ｒ0＋１０．０Ｄとなるようにしたことを特徴とする矯正角膜クロスリンキング用コンタクトレンズ。 A relief area consisting of a concave part and a pressing area consisting of a convex part are formed on the side that comes into contact with the cornea of the patient, and by changing the shape of the cornea by pressing the relief area and the pressing area against the cornea, the naked eye vision And a contact lens for correcting at least one of the keratoconus,
When the pressing area is attached to the cornea, it protrudes into a convex curved surface at a position that presses the center of the corneal dome, and forms a concave curved surface in the cornea.
The relief region is formed at a position surrounding the outer periphery of the pressing region, and an annular recess having a concave arc shape in cross section,
An anchor region that is provided at a position that surrounds the outer periphery of the relief region and is shaped to follow the contour of the cornea when attached to the cornea;
A peripheral portion surrounding the outer periphery of the anchor region;
Having
The curvature of the concave curved surface to be formed on the cornea and R 0, the curvature of the convex curved surface of the press area when the R S, so that the R S = R 0 + 5.0D~R 0 + 10.0D A contact lens for correcting corneal cross-linking, characterized in that
前記曲率Ｒ0の押圧領域で患者の角膜を押圧した後に、この押圧を解除した際の、角膜
ドーム中央部の、眼球の弾性復元力によるスプリングバック量をΔＲとしたとき、前記曲率ＲSは、ＲS＝Ｒ0＋ΔＲであることを特徴とする矯正角膜クロスリンキング用コンタク
トレンズ。 In claim 1,
When the patient's cornea is pressed in the pressing region having the curvature R 0 and the spring back amount due to the elastic restoring force of the eyeball at the center of the corneal dome when the pressing is released is ΔR, the curvature R S is R S = R 0 + ΔR, a contact lens for correcting corneal cross-linking.
前記リリーフ領域は、角膜に装着されたときに、角膜ドームの中央に接触する位置で凹湾曲面状に形成されていて、角膜に凸湾曲面を形成するようにされ、
前記押圧領域は、前記リリーフ領域の外周を囲む位置に形成された、断面が凸円弧形状の環状凸部からなり、
前記押圧領域の外周を囲む位置に設けられ、角膜に装着されたときに、角膜の輪郭に沿うような形状のアンカー領域と、
このアンカー領域の外周を囲む周縁部と、
を有してなり、
角膜に形成しようとする前記凸湾曲面の曲率をｒ0とし、前記リリーフ領域の凹湾曲面
の曲率をｒSとしたとき、ｒS＝ｒ0−６．５Ｄ〜ｒ0−１１．５Ｄとなるようにしたことを特徴とする矯正角膜クロスリンキング用コンタクトレンズ。 A relief area consisting of a concave part and a pressing area consisting of a convex part are formed on the side that comes into contact with the cornea of the patient, and by changing the shape of the cornea by pressing the relief area and the pressing area against the cornea, the naked eye vision And a contact lens for correcting at least one of the keratoconus,
The relief region is formed in a concave curved surface at a position in contact with the center of the corneal dome when attached to the cornea, and forms a convex curved surface in the cornea.
The pressing area is formed of an annular convex portion having a convex arc shape in cross section formed at a position surrounding the outer periphery of the relief area,
An anchor region that is provided at a position that surrounds the outer periphery of the pressing region and is shaped to follow the contour of the cornea when attached to the cornea;
A peripheral portion surrounding the outer periphery of the anchor region;
Having
The curvature of the convex curved surface to be formed on the cornea and r 0, when the curvature of the concave curved surface of said relief area was r S, and r S = r 0 -6.5D~r 0 -11.5D A contact lens for correcting corneal cross linking characterized by comprising:
前記曲率Ｒ0の押圧領域で患者の角膜を押圧した後に、この押圧を解除した際の、角膜
ドーム中央部の、眼球の弾性復元力によるスプリングバック量をΔｒとしたとき、前記曲率ｒSは、ｒS＝ｒ0−Δｒであることを特徴とする矯正角膜クロスリンキング用コンタク
トレンズ。 In claim 3,
When the patient's cornea is pressed in the pressing area having the curvature R 0 and the spring back amount due to the elastic restoring force of the eyeball at the center of the corneal dome when the pressing is released is Δr, the curvature r S is RS = r 0 −Δr, a contact lens for correcting corneal cross-linking.
前記周縁部の外径Ｄ１は、人間の角膜の外周縁の平均的外径Ｄ0よりも３．０〜５．０
ｍｍ大きくされ、且つ、該周縁部における直径がＤ0−３．０ｍｍ〜Ｄ0−５．０ｍｍの位置から最も外周までの環状領域での角膜に接触する側に、紫外線を遮蔽するＵＶ遮蔽膜を設けたことを特徴とする矯正角膜クロスリンキング用コンタクトレンズ。 In any one of Claims 1 thru | or 4,
Outer diameter D 1 of the said peripheral portion, than the average Tekisoto径D 0 of the outer peripheral edge of the human cornea 3.0-5.0
mm is large and, on the side where the diameter at the peripheral edge portion contacts the cornea in the annular region to the most outer periphery from the position D 0 -3.0mm~D 0 -5.0mm, UV shielding film for shielding the ultraviolet A contact lens for correcting corneal cross linking characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013168689A JP5881083B2 (en) | 2013-08-14 | 2013-08-14 | Contact lenses for straightening corneal cross-linking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013168689A JP5881083B2 (en) | 2013-08-14 | 2013-08-14 | Contact lenses for straightening corneal cross-linking |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2015036080A JP2015036080A (en) | 2015-02-23 |
| JP2015036080A5 true JP2015036080A5 (en) | 2015-04-02 |
| JP5881083B2 JP5881083B2 (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2013168689A Active JP5881083B2 (en) | 2013-08-14 | 2013-08-14 | Contact lenses for straightening corneal cross-linking |
Country Status (1)
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5828535B1 (en) | 2014-10-10 | 2015-12-09 | 石根 三井 | Contact lenses for straightening corneal cross-linking |
| CA3009037A1 (en) | 2015-12-22 | 2017-06-29 | Mitsui Medical Commerce Co., Ltd. | Contact lens for corrective corneal crosslinking and method for producing same |
| CN117258157B (en) * | 2023-11-14 | 2024-02-09 | 超目科技(北京)有限公司 | Cornea crosslinking auxiliary device and cornea crosslinking system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5270051A (en) * | 1991-10-15 | 1993-12-14 | Harris Donald H | Enzyme-orthokeratology |
| JP3881221B2 (en) * | 2001-11-16 | 2007-02-14 | 石根 三井 | Contact lenses for myopia and / or astigmatism correction |
| JP4653437B2 (en) * | 2004-08-04 | 2011-03-16 | 株式会社ニデック | Orthokeratology prescription support system |
| WO2009090763A1 (en) * | 2008-01-16 | 2009-07-23 | Tokuichiro Hasegawa | Vision corrective jig and cooling fluid injection tool for the jig |
| JP2012502668A (en) * | 2008-09-19 | 2012-02-02 | アヴェドロ・インコーポレーテッド | Eye treatment system |
| US20100318017A1 (en) * | 2009-06-11 | 2010-12-16 | Lewis Scott E | Method of improving vision using contact lenses and corneal collagen crosslinking |
| EP2531260A2 (en) * | 2010-02-01 | 2012-12-12 | Montefiore Medical Center | Methods and devices for crosslinking of corneal collagen and for treatment of disorders of the eye |
| JP2015500670A (en) * | 2011-10-02 | 2015-01-08 | アヴェドロ・インコーポレーテッドＡｖｅｄｒｏ，Ｉｎｃ． | System and method for applying and monitoring eye therapy |
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