WO2011160426A1 - 一种硬性透气角膜接触镜 - Google Patents

一种硬性透气角膜接触镜 Download PDF

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Publication number
WO2011160426A1
WO2011160426A1 PCT/CN2011/000961 CN2011000961W WO2011160426A1 WO 2011160426 A1 WO2011160426 A1 WO 2011160426A1 CN 2011000961 W CN2011000961 W CN 2011000961W WO 2011160426 A1 WO2011160426 A1 WO 2011160426A1
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Prior art keywords
arc
contact lens
gas permeable
rigid gas
wing
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Application number
PCT/CN2011/000961
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English (en)
French (fr)
Inventor
林岩
Original Assignee
Lin Yan
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Filing date
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Publication of WO2011160426A1 publication Critical patent/WO2011160426A1/zh

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Classifications

    • 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
    • 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
    • G02C7/048—Means for stabilising the orientation of lenses in the eye

Definitions

  • a hard gas permeable contact lens technology field A hard gas permeable contact lens technology field.
  • the invention relates to a corneal contact lens, in particular to a novel rigid gas permeable contact lens. Background technique
  • rigid contact lenses Compared with soft contact lenses, rigid contact lenses not only improve oxygen permeability, but also ensure the firmness of the material, and have good wettability and precipitation resistance. It has been clinically validated by domestic and foreign ophthalmologists for years of control and corrective treatment of adolescents with true myopia and keratoconus, and has been affirmed. At present, rigid contact lenses are usually placed only in the conjunctival cavity of the sclera of the eye, directly adhering to the upper and lower conjunctiva and cornea. Due to the irregularity of the human cornea, the positioning of various hard contact lenses on the cornea is not ideal. The situation. Summary of the invention
  • the object of the present invention is to solve the above problems, and propose a novel rigid gas permeable contact lens, which changes the positioning of various hard contact lenses on the cornea, and enhances the stability and residence of various lenses in the cornea. Centrality.
  • a novel rigid gas permeable contact lens comprises a peripheral arc region of the lens, characterized in that: the inner edge of the peripheral arc region of the novel rigid contact lens is provided with two symmetric stable wing regions or three stable wing regions; The distance between the inner and outer tips of the stabilizing wing end is 0. 2-7 mm ; the concave inner curved surface of the stabilizing wing is a cone arc, a spherical arc or an aspheric arc.
  • the three stabilizing wing regions are equidistant or non-stretched along the inner edge of the peripheral arc region; each of the stabilizing wing regions is 1/6-1/3 of the inner edge.
  • the inner arc surface of the stabilizing wing has a base angle of 20° - 40°.
  • the inner arc surface of the stabilizing wing is a spherical arc with a radius of curvature of 6-25 mm.
  • the inner arc surface of the stabilizing wing is an aspheric arc, and the absolute difference between the radius of curvature of the starting point and the end point of the aspherical arc is 0-lmm, the starting radius of curvature is 6-25 mm, and the ending radius of curvature is 6-25 mm.
  • the inner arc surface of the stabilizing wing is a single arc or a plurality of arcs
  • the multi-arc is a single multi-arc or a combined multi-arc of a cone arc, a spherical arc or an aspheric arc.
  • the stabilizing wings are curved, trapezoidal or rectangular.
  • the stabilizing wings are joined by means of bonding or cutting.
  • the types of lenses include rigid contact lenses, keratoplasties, keratoconus lenses, scleral lenses, and lenses for postoperative corneal surgery.
  • the outer peripheral arc region of the stabilizing wing is rounded and the convex surface is curved.
  • the invention makes two symmetrical curved, trapezoidal or rectangular curved surfaces on the corresponding edges of the lens after the hard contact lens, the Orthokeratology, the keratoscopic lens, the scleral lens and the corneal surgery, which changes the Irregularity of the human cornea, resulting in a variety of rigid contact lens positioning on the cornea is not ideal, the surface increases the stability and centrality of various lenses in the cornea, allowing a variety of contact lenses in the cornea
  • the matching state is more ideal, and the vision is also in the most ideal state.
  • Figure 1 is a top view of the stable structure of the stable wing of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a schematic view of the structure of the inner arc of the stabilizing wing being aspherical arc and two arcs.
  • Figure 4 is a schematic view showing the structure of three stable wings of the present invention.
  • a novel rigid gas permeable contact lens includes a peripheral arc region 2 of the lens 1, characterized in that: the inner edge of the peripheral arc region 2 of the novel rigid contact lens is provided with two The symmetrical stable wing region 3 or the three stable wing regions 3; the distance D of the inner and outer tips of the end of the stabilizing wing region is 0. 2-7 mm ; the concave inner curved surface of the stabilizing wing is a cone arc, a spherical arc or Aspherical arc.
  • the three stabilizing wing regions 3 are equidistantly or unequally distributed along the inner edge of the peripheral arc region 2; each of the stabilizing wing regions 3 is 1/6-1/3 of the inner edge; the three stabilizing wings
  • the shape and size of the zones can vary.
  • the inner curved surface 4 of the stabilizing wing is a cone-shaped arc bottom angle 5 of 20° - 40°.
  • the inner curved surface 4 of the stabilizing wing is a spherical arc with a radius of curvature of 6-25 mm.
  • the inner curved surface 4 of the stabilizing wing is an aspheric arc, and the absolute radius of curvature of the starting point and the end point of the aspherical arc is 0-lmm, the starting radius of curvature is 6-25 mra, and the ending radius of curvature is 6-25 mm.
  • the inner arc surface of the stabilizing wing is a single arc or a plurality of arcs, and the multi-arc is a cone arc, a spherical arc or an aspheric arc single multi-arc or a combined multi-arc.
  • the inner arc surface of the stabilizing wing is a non-spherical arc and two arc structures, and the absolute difference between the radius of curvature of the starting point and the end point of each aspherical arc is 0-1 ⁇ , that is, the absolute of R2 and R1.
  • the difference is 0-lmm, and the absolute difference between R3 and R4 is 0-lmm.
  • the stabilizing wings are curved, trapezoidal or rectangular.
  • the stabilizing wings are joined by means of bonding or cutting.
  • the types of lenses include rigid contact lenses, Orthokeratology, keratoconus, and scleral mirrors.
  • the outer peripheral arc region of the stabilizing wing is rounded and the convex surface is curved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)

Description

一种硬性透气角膜接触镜 技术领域.
本发明涉及一种眼角膜接触镜， 尤其涉及一种新型硬性透气角膜接触镜。 背景技术
硬性角膜接触镜与软性隐形眼镜相比，既提高了透氧性，又保证材料的牢固 性， 并且具有良好的湿润性和抗沉淀性。 它对青少年真性近视和圆锥角膜的控 制、 矫正治疗效果经受了国内外眼科专家多年的临床验证， 并得到了肯定。 目 前， 硬性角膜接触镜通常仅置于眼角巩膜缘范围的结膜腔， 直接紧贴上下睑结 膜和角膜， 由于人角膜的不规则性， 存在各种硬性角膜接触镜在角膜上的定位 不尽理想的状况。 发明内容
本发明的目的是针对上述问题， 提出一种新型硬性透气角膜接触镜， 改变 了各种硬性角膜接触镜在角膜上的定位不尽理想的情况， 增强了各种镜片在角 膜的稳定性和居中心性。
本发明的技术方案是：
一种新型硬性透气角膜接触镜， 包括镜片的周边弧区， 其特征是： 所述新 型硬性角膜接触镜的周边弧区的内边缘设有两个对称的稳定翼区或三个稳定翼 区； 所述稳定翼区端的内外顶端的距离 0. 2-7mm; 所述稳定翼的凹面内侧弧面为 锥面弧、 球面弧或非球面弧。
所述三个稳定翼区沿周边弧区的内边缘等距或不奪距分布； 所述每个稳定 翼区为内边缘的 1/6-1/3。
所述稳定翼的内侧弧面为锥面弧的底角为 20° - 40° 。
所述稳定翼的内侧弧面为球面弧， 曲率半径 6-25mm。
所述稳定翼的内侧弧面为非球面弧， 非球面弧起点和终点的曲率半径之绝 对差值为 0- lmm， 起点曲率半径 6- 25ram， 终点曲率半径 6-25mm。
所述稳定翼的内侧弧面为单弧或多弧， 所述多弧为锥面弧、 球面弧或非球 面弧的单一多弧或组合多弧。
所述稳定翼为弧形、 梯形或长方形。
所述稳定翼利用粘合或者切削的方式连接。 所述镜片种类包括硬性角膜接触镜、 角膜塑形镜、 圆锥角膜镜片、 巩膜镜 及角膜手术后用镜片。
所述稳定翼的外周边弧区为圆角且凸面内弯。
本发明的有益效果：
本发明在硬性角膜接触镜、 角膜塑形镜、 圆锥角膜镜片、 巩膜镜及角膜手 术后用镜片的相对应的边缘上， 做出两个对称的弧形、 梯形或长方形的曲面， 改变了由于人角膜的不规则性， 致使各种硬性角膜接触镜在角膜上的定位不尽 理想的状况， 该曲面增加了各种镜片在角膜的稳定性和居中心性， 让各种角膜 接触镜在角膜上的配适状态达更理想， 视力也达到最理想的状态。 附图说明
图 1为本发明的稳定翼为弧形结构俯视图
图 2为图 1中 A-A剖视图
图 3为稳定翼的内侧弧面为非球面弧两弧的结构示意图
图 4为本发明的三个稳定翼的结构示意图
如图所示， 1-镜片， 2-周边弧区， 3-稳定翼， 4-稳定翼的内侧弧面， 5-锥面弧底角 具体实施方式
下面结合说明书附图对本发明作进一步说明。
如图 1-4中所示， 一种新型硬性透气角膜接触镜， 包括镜片 1的周边弧区 2， 其特征是： 所述新型硬性角膜接触镜的周边弧区 2的内边缘设有两个对称的稳定 翼区 3或三个稳定翼区 3; 所述稳定翼区 3端的内外顶端的距离 D为 0. 2-7mm; 所 述稳定翼的凹面内侧弧面为锥面弧、 球面弧或非球面弧。
所述三个稳定翼区 3沿周边弧区 2的内边缘等距或不等距分布； 所述每个稳 定翼区 3为内边缘的 1/6-1/3; 所述三个稳定翼区的形状和尺寸可以不同。
所述稳定翼的内侧弧面 4为锥面弧底角 5为 20° - 40° 。
所述稳定翼的内侧弧面 4为球面弧， 曲率半径 6- 25mm。
所述稳定翼的内侧弧面 4为非球面弧， 非球面弧起点和终点的曲率半径之绝 对差为 0-lmm， 起点曲率半径 6-25mra， 终点曲率半径 6-25mm。
所述稳定翼的内侧弧面为单弧或多弧， 所述多弧为锥面弧、 球面弧或非球 面弧单一多弧或组合多弧。 如图 3中所示， 所述稳定翼的内侧弧面为非球面弧两弧的结构， 每段非球面 弧起点和终点的曲率半径之绝对差为 0-1瞧， 即 R2与 R1之绝对差值 0-lmm， R3 与 R4之绝对差值 0- lmm。
所述稳定翼为弧形、 梯形或长方形。
所述稳定翼利用粘合或者切削的方式连接。
所述镜片种类包括硬性角膜接触镜、 角膜塑形镜、 圆锥角膜镜片、 巩膜镜。 所述稳定翼的外周边弧区为圆角且凸面内弯。

Claims

权 利 要 求 书 ;
~ 1、 一种新型硬性透气角膜接触镜， 包括镜片的周边弧区， 其特征是： 所述 新型硬性角膜接触镜的周边弧区的内边缘设有两个对称的稳定翼区或三个稳定 翼区； 所述稳定翼的凹面内侧弧面为锥面弧、 球面弧或非球面弧。
2、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定 翼区端的内外顶端的距离 0. 2-7mm。
3、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述三个 稳定翼区沿周边弧区的内边缘等距或不等距分布； 所述每个稳定翼区为内边缘 的 1/6-1/3。
4、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定 翼的内侧弧面为锥面弧的底角为 20° - 40° 。
5、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是: 所述稳定 翼的内侧弧面为球面弧， 曲率半径 6-25irai。
6、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定 翼的内侧弧面为非球面弧， 非球面弧起点和终点的曲率半径之绝对差值为 0- Iran， 起点曲率半径 6- 25mm， 终点曲率半径 6_25腿。
7、 根据权利要求 1或 4-6之一所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定翼的内侧弧面为单弧或多弧， 所述多弧为锥面弧、 球面弧或非 面弧 的单一多弧或组合多弧。
8、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定 翼为弧形、 梯形或长方形。
9、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述稳定 翼利用粘合或者切削的方式连接。
10、 根据权利要求 1所述的新型硬性透气角膜接触镜， 其特征是： 所述镜片 种类包括硬性角膜接触镜、 角膜塑形镜、 圆锥角膜镜片、 巩膜镜及角膜手术后 用镜片。
PCT/CN2011/000961 2010-06-24 2011-06-14 一种硬性透气角膜接触镜 WO2011160426A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN2010102085542A CN101881892A (zh) 2010-06-24 2010-06-24 一种新型硬性透气角膜接触镜
CN201010208554.2 2010-06-24
CN2010102821781A CN101950089B (zh) 2010-06-24 2010-09-15 一种新型硬性透气角膜接触镜
CN201010282178.1 2010-09-15

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101881892A (zh) * 2010-06-24 2010-11-10 陈迪生 一种新型硬性透气角膜接触镜
CN110308569A (zh) * 2015-11-02 2019-10-08 陈迪生 一种异型巩膜镜
CN106773121A (zh) * 2017-03-17 2017-05-31 施伯彦 一种硬性角膜接触镜
CN111931737B (zh) * 2020-09-28 2021-07-27 汉桑（南京）科技有限公司 一种角膜镜异常判断方法和系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164037A (zh) * 1995-03-15 1997-11-05 诺瓦提斯公司 旋转稳定的隐形眼镜和镜片稳定的方法
CN2343997Y (zh) * 1998-08-05 1999-10-20 王平 吸盘式近视治疗角膜接触镜
CN1479880A (zh) * 2000-12-08 2004-03-03 庄臣及庄臣视力保护公司 动态稳定化接触眼镜
CN1639613A (zh) * 2002-07-19 2005-07-13 庄臣及庄臣视力保护公司 转动稳定的隐形眼镜
CN1936648A (zh) * 2006-10-20 2007-03-28 中山大学中山眼科中心 治疗性硬性透气性角膜接触镜
US20070252947A1 (en) * 2006-04-28 2007-11-01 Wei-Pin Hsu Contact lenses
CN101881892A (zh) * 2010-06-24 2010-11-10 陈迪生 一种新型硬性透气角膜接触镜

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6183082B1 (en) * 1998-12-21 2001-02-06 Johnson & Johnson Vision Care, Inc. Contact lenses with constant peripheral geometry
US6325509B1 (en) * 1999-08-20 2001-12-04 Art Optical Contact Lens, Inc. Low-mass ophthalmic lens
CN2609011Y (zh) * 2003-01-16 2004-03-31 上海卫康光学有限公司 一种多弧隐形眼镜
US6939005B2 (en) * 2003-08-20 2005-09-06 Johnson & Johnson Vision Care Inc. Rotationally stabilized contact lenses
US7201480B2 (en) * 2004-05-20 2007-04-10 Johnson & Johnson Vision Care, Inc. Methods for rotationally stabilizing contact lenses
CN2890976Y (zh) * 2005-12-16 2007-04-18 刘�东 角膜定型接触镜
KR101090840B1 (ko) * 2008-10-13 2011-12-08 박경진 안구내렌즈 지지체 및 그 제조방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164037A (zh) * 1995-03-15 1997-11-05 诺瓦提斯公司 旋转稳定的隐形眼镜和镜片稳定的方法
CN2343997Y (zh) * 1998-08-05 1999-10-20 王平 吸盘式近视治疗角膜接触镜
CN1479880A (zh) * 2000-12-08 2004-03-03 庄臣及庄臣视力保护公司 动态稳定化接触眼镜
CN1639613A (zh) * 2002-07-19 2005-07-13 庄臣及庄臣视力保护公司 转动稳定的隐形眼镜
US20070252947A1 (en) * 2006-04-28 2007-11-01 Wei-Pin Hsu Contact lenses
CN1936648A (zh) * 2006-10-20 2007-03-28 中山大学中山眼科中心 治疗性硬性透气性角膜接触镜
CN101881892A (zh) * 2010-06-24 2010-11-10 陈迪生 一种新型硬性透气角膜接触镜
CN101950089A (zh) * 2010-06-24 2011-01-19 陈迪生 一种新型硬性透气角膜接触镜

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CN101881892A (zh) 2010-11-10
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