JP2011245208A5 - Intraocular lens design method, intraocular lens, and intraocular lens insertion device - Google Patents
Intraocular lens design method, intraocular lens, and intraocular lens insertion device Download PDFInfo
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- JP2011245208A5 JP2011245208A5 JP2010123919A JP2010123919A JP2011245208A5 JP 2011245208 A5 JP2011245208 A5 JP 2011245208A5 JP 2010123919 A JP2010123919 A JP 2010123919A JP 2010123919 A JP2010123919 A JP 2010123919A JP 2011245208 A5 JP2011245208 A5 JP 2011245208A5
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- intraocular lens
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本発明は、患者眼の水晶体の代替として用いられる眼内レンズであって、乱視度数が付与されたトーリック眼内レンズの設計方法、眼内レンズ、及び眼内レンズ挿入器具に関する The present invention relates to a toric intraocular lens design method , an intraocular lens, and an intraocular lens insertion device that are used as an alternative to a crystalline lens of a patient's eye, and to which an astigmatic power is given.
本発明は、上記従来技術の問題点に鑑み、乱視度数が付与されたトーリック眼内レンズをインジェクターを用いて押し出す際に、より小さく眼内レンズを折り畳むことができ、好適に眼内に押し出すことのできるトーリック眼内レンズの設計方法、眼内レンズ、及び眼内レンズ挿入器具を提供することを技術課題とする。 In the present invention, in view of the above-mentioned problems of the prior art, when pushing a toric intraocular lens having an astigmatic power using an injector, the intraocular lens can be folded smaller and suitably pushed into the eye. It is an object of the present invention to provide a toric intraocular lens design method , an intraocular lens, and an intraocular lens insertion device .
（１） 本発明における眼内レンズの設計方法は、球面度数及び乱視度数を与えることで光学部の形状を決定するステップと、前記光学部の外縁に所定形状の支持部を形成するステップと、前記光学部の形状を決定するステップにて付与された乱視度数により決定される乱視軸の方向に対して前記支持部を形成するステップによって形成される前記支持部の基端部が前記乱視軸の軸線上とならない位置となるように前記支持部の形成位置を決定するステップと、を含むことを特徴とする。
（２） 本発明における眼内レンズは、所定の乱視度数が付与された光学部と，該光学部から延びる湾曲形状の支持部とを有し、インジェクターにて眼内に挿入される折り曲げ可能な眼内レンズにおいて、前記光学部から延びる支持部の基端部は、前記乱視度数に基づいて前記光学部に形成される乱視軸の軸線上とならない前記光学部のコバ位置に形成されることを特徴とする。
（３） 本発明における眼内レンズ挿入器具は、光学部と支持部とを有する変形可能な眼内レンズを眼内に挿入するための挿入部と、前記挿入部を先端に持つ筒部本体と、前記眼内レンズを載置する載置部と、前記載置部に載置された前記眼内レンズを前記挿入部へと押し出すための押出手段と、を有する眼内レンズ挿入器具において、前記眼内レンズは所定の乱視度数を持つ光学部と，前記乱視度数に基づいて前記光学部に形成される乱視軸の軸線上とならない前記光学部のコバ位置から延びる湾曲形状の支持部が形成されたトーリック眼内レンズであり、前記押出手段の押し出し方向と，前記トーリック眼内レンズの乱視軸の方向と，が略同方向となるように前記載置部に前記トーリック眼内レンズが予めセットされた状態で梱包されていることを特徴とする。
（４） 本発明における眼内レンズ挿入器具は、光学部と支持部とを有する変形可能な眼内レンズを眼内に挿入するための挿入部と、前記挿入部を先端に持つ筒部本体と、前記眼内レンズを載置する載置部と、前記載置部に載置された前記眼内レンズを前記挿入部へと押し出すための押出手段と、を有する眼内レンズ挿入器具において、前記眼内レンズは所定の乱視度数を持つトーリック眼内レンズであり、前記押出手段の押し出し方向と，前記トーリック眼内レンズの乱視軸の方向と，が略同方向となるように前記載置部に前記トーリック眼内レンズが予めセットされた状態で梱包されていることを特徴とする。
(1) A method for designing an intraocular lens in the present invention includes determining a shape of an optical part by giving a spherical power and an astigmatic power, and forming a support part having a predetermined shape on an outer edge of the optical part; The base end portion of the support portion formed by the step of forming the support portion with respect to the direction of the astigmatism axis determined by the astigmatism power given in the step of determining the shape of the optical portion is the astigmatism axis . Determining the formation position of the support portion so that the position does not lie on the axis .
(2) The intraocular lens according to the present invention has an optical part to which a predetermined astigmatism power is given, and a support part having a curved shape extending from the optical part, and is bendable inserted into the eye by an injector. In the intraocular lens, a base end portion of the support portion that extends from the optical portion is formed at an edge position of the optical portion that is not on the axis of the astigmatic axis formed in the optical portion based on the astigmatism power. Features.
(3) An intraocular lens insertion device according to the present invention includes an insertion portion for inserting a deformable intraocular lens having an optical portion and a support portion into the eye, and a cylindrical portion main body having the insertion portion at a distal end. In the intraocular lens insertion instrument, comprising: a placement unit for placing the intraocular lens; and an extruding unit for pushing the intraocular lens placed on the placement unit to the insertion unit. The intraocular lens is formed with an optical part having a predetermined astigmatism power and a curved support part extending from the edge of the optical part that is not on the axis of the astigmatism axis formed on the optical part based on the astigmatism power. A toric intraocular lens, and the toric intraocular lens is set in advance in the mounting portion so that the pushing direction of the pushing means and the direction of the astigmatic axis of the toric intraocular lens are substantially the same direction. Packed in the state It is characterized in.
(4) An intraocular lens insertion device according to the present invention includes an insertion portion for inserting a deformable intraocular lens having an optical portion and a support portion into the eye, and a cylindrical portion main body having the insertion portion at a distal end. In the intraocular lens insertion instrument, comprising: a placement unit for placing the intraocular lens; and an extruding unit for pushing the intraocular lens placed on the placement unit to the insertion unit. The intraocular lens is a toric intraocular lens having a predetermined astigmatism power, and the push-out direction of the push-out means and the direction of the astigmatic axis of the toric intraocular lens are set to be substantially the same direction. the toric intraocular lens is characterized that you have been packed in a state of being set in advance.
乱視度数が付与されたトーリック眼内レンズをインジェクターを用いて押し出す際に、より小さく眼内レンズを折り畳むことができ、好適に眼内に押し出すことのできるトーリック眼内レンズの設計方法、眼内レンズ、及び眼内レンズ挿入器具を提供できる。
A method for designing a toric intraocular lens that can be folded into a smaller size when the toric intraocular lens to which an astigmatic power is given is pushed out using an injector, and can be suitably pushed into the eye, and an intraocular lens And an intraocular lens insertion device .
Claims (5)
球面度数及び乱視度数を与えることで光学部の形状を決定するステップと、
前記光学部の外縁に所定形状の支持部を形成するステップと、
前記光学部の形状を決定するステップにて付与された乱視度数により決定される乱視軸の方向に対して前記支持部を形成するステップによって形成される前記支持部の基端部が前記乱視軸の軸線上とならない位置となるように前記支持部の形成位置を決定するステップと、
を含むことを特徴とする眼内レンズの設計方法。 The design method of a foldable intraocular lens that is inserted into the eye with an injector is
Determining the shape of the optical part by giving a spherical power and an astigmatic power;
Forming a support part having a predetermined shape on an outer edge of the optical part;
The base end portion of the support portion formed by the step of forming the support portion with respect to the direction of the astigmatism axis determined by the astigmatism power given in the step of determining the shape of the optical portion is the astigmatism axis . Determining the formation position of the support portion so as not to be on the axis ;
A method for designing an intraocular lens, comprising:
前記眼内レンズを前記インジェクターに設置する際に、前記光学部に付与された乱視度数により決定される乱視軸の方向を前記インジェクターの押出軸方向と略等しくなるように前記押出軸方向に対する前記光学部の設置角度を設定するステップと、
を含むことを特徴とする眼内レンズの設計方法。 The method for designing an intraocular lens according to claim 1,
When the intraocular lens is installed in the injector, the optical direction relative to the push-out axis direction is such that the direction of the astigmatism axis determined by the astigmatism power applied to the optical unit is substantially equal to the push-out axis direction of the injector. Setting the installation angle of the part,
A method for designing an intraocular lens, comprising:
前記光学部から延びる支持部の基端部は、前記乱視度数に基づいて前記光学部に形成される乱視軸の軸線上とならない前記光学部のコバ位置に形成されることを特徴とする眼内レンズ。The proximal end portion of the support portion extending from the optical portion is formed at an edge position of the optical portion that is not on the axis of the astigmatic axis formed in the optical portion based on the astigmatism power. lens.
前記眼内レンズは所定の乱視度数を持つ光学部と，前記乱視度数に基づいて前記光学部に形成される乱視軸の軸線上とならない前記光学部のコバ位置から延びる湾曲形状の支持部が形成されたトーリック眼内レンズであり、 The intraocular lens includes an optical part having a predetermined astigmatism power, and a curved support part extending from the edge of the optical part that is not on the axis of the astigmatism axis formed on the optical part based on the astigmatism power. Toric intraocular lens
前記押出手段の押し出し方向と，前記トーリック眼内レンズの乱視軸の方向と，が略同方向となるように前記載置部に前記トーリック眼内レンズが予めセットされた状態で梱包されていることを特徴とする眼内レンズ挿入器具。 The toric intraocular lens is packed in a state in which the toric intraocular lens is set in advance in the mounting portion so that the pushing direction of the pushing means and the direction of the astigmatic axis of the toric intraocular lens are substantially the same direction. An intraocular lens insertion device.
前記眼内レンズは所定の乱視度数を持つトーリック眼内レンズであり、 The intraocular lens is a toric intraocular lens having a predetermined astigmatism power;
前記押出手段の押し出し方向と，前記トーリック眼内レンズの乱視軸の方向と，が略同方向となるように前記載置部に前記トーリック眼内レンズが予めセットされた状態で梱包されていることを特徴とする眼内レンズ挿入器具。 The toric intraocular lens is packed in a state in which the toric intraocular lens is set in advance in the mounting portion so that the pushing direction of the pushing means and the direction of the astigmatic axis of the toric intraocular lens are substantially the same direction. An intraocular lens insertion device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010123919A JP5771907B2 (en) | 2010-05-31 | 2010-05-31 | Intraocular lens and intraocular lens insertion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010123919A JP5771907B2 (en) | 2010-05-31 | 2010-05-31 | Intraocular lens and intraocular lens insertion device |
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| JP2011245208A JP2011245208A (en) | 2011-12-08 |
| JP2011245208A5 true JP2011245208A5 (en) | 2013-07-11 |
| JP5771907B2 JP5771907B2 (en) | 2015-09-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3441044B1 (en) | 2016-04-08 | 2024-01-24 | Kowa Company, Ltd. | Toric intraocular lens and intraocular-lens insertion instrument |
| WO2017217443A1 (en) * | 2016-06-15 | 2017-12-21 | 興和株式会社 | Toric intraocular lens, intraocular lens insertion tool, and method for producing toric intraocular lens |
| JP2019195398A (en) | 2018-05-08 | 2019-11-14 | ソニー株式会社 | Intraocular lens, intraocular lens fixing aid system, and image processing apparatus |
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| JPH02211119A (en) * | 1988-10-21 | 1990-08-22 | Genjiro Omi | Astigmatism degree of toric type eye lens and method for determining degree of eye lens |
| JP2792588B2 (en) * | 1992-04-15 | 1998-09-03 | 株式会社ニデック | Intraocular lens |
| JP2002360616A (en) * | 2001-06-08 | 2002-12-17 | Canon Inc | Intraocular inserting lens |
| JP4482705B2 (en) * | 2005-01-18 | 2010-06-16 | スター・ジャパン株式会社 | Lens insertion device for intraocular insertion |
| EP2060242B1 (en) * | 2006-10-04 | 2017-12-06 | Hoya Corporation | Intraocular lens |
| JP5086062B2 (en) * | 2007-12-29 | 2012-11-28 | 株式会社ニデック | Intraocular lens insertion device |
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