WO2015108211A1 - Lentille de contact souple pour presbytie et son procédé de fabrication - Google Patents

Lentille de contact souple pour presbytie et son procédé de fabrication Download PDF

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Publication number
WO2015108211A1
WO2015108211A1 PCT/KR2014/000461 KR2014000461W WO2015108211A1 WO 2015108211 A1 WO2015108211 A1 WO 2015108211A1 KR 2014000461 W KR2014000461 W KR 2014000461W WO 2015108211 A1 WO2015108211 A1 WO 2015108211A1
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WO
WIPO (PCT)
Prior art keywords
light
contact lens
soft contact
region
light blocking
Prior art date
Application number
PCT/KR2014/000461
Other languages
English (en)
Korean (ko)
Inventor
이창선
Original Assignee
(주)고려아이텍
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.)
Filing date
Publication date
Application filed by (주)고려아이텍 filed Critical (주)고려아이텍
Priority to PCT/KR2014/000461 priority Critical patent/WO2015108211A1/fr
Publication of WO2015108211A1 publication Critical patent/WO2015108211A1/fr

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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
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
    • G02C7/165—Shades; shields; Obturators, e.g. with pinhole, with slot with stenopaeic apertures

Definitions

  • the present invention relates to a soft contact lens for presbyopia and a method of manufacturing the same.
  • light transmission for transmitting light having a diameter of a certain size in the center of a soft contact lens
  • the depth of focus can be increased by selectively blocking the light entering the eyes by forming an area, and forming a light blocking area having a certain diameter outside the light transmitting area and forming a micro hole in the light blocking area
  • the soft contact lens for presbyopia and the manufacturing method for the presbyopia to secure a bright field of view by securing the amount of light that may be insufficient due to the setting of the light blocking area by increasing the distribution density of the fine hole toward the It is about.
  • presbyopia the short-range work
  • This presbyopia is a kind of aging phenomenon, the eye's control ability decreases with age, which is caused by ciliary body (muscle that controls the refractive power of the lens at both ends of the lens) or the elasticity of the lens and hypertrophy of the lens.
  • the ciliary or crystalline lens is very elastic, and when you see an object in close proximity, the ciliary body contracts and the lens becomes thicker, which increases the refractive power. Since the refractive power of the lens does not increase, the distance is clearly visible and the nearby image is blurred.
  • optical correction and surgical correction are generally proposed.
  • the prevention and treatment of presbyopia has not been completed yet, but research on presbyopia that maintains near vision to some extent, including optical correction and surgical correction, is being conducted.
  • the aim is to restore control in presbyopia.
  • dual or multifocal contact lenses may have a high refractive power or asymmetrical design in the center.
  • a lens having a high refractive power in the center has a strong refractive power near the center and a weaker refractive power toward the surroundings.
  • the asymmetric design uses diffraction optics to focus light at different distances. The focus distribution for near or distant objects depends on the diffraction design.
  • monovision contact lenses are corrected for one eye and the other for mono vision in mono vision. This provides clear vision in both distance and near-end. In general, it is prescribed in the case of dominant in the superior and non-advanced in the superior, and in the case of unadapted after two weeks of adaptation. During adaptation, presbyopia learns to endure monovision and ignore out-of-focus images.
  • the depth of focus can be increased by selectively blocking the light incident to the eye by forming a light transmission area having a predetermined diameter in the center of the soft contact lens.
  • the light blocking area having a certain diameter on the outside of the light transmission area and forming the micro holes in the light blocking area, the density of the micro holes is increased as it goes toward the outside of the area.
  • the present invention provides a soft contact lens for presbyopia and a method of manufacturing the same for securing a bright field of view by securing an amount of light that may be insufficient.
  • the present invention as described above is a soft contact lens, a light transmission region formed at a predetermined size in the center of the soft contact lens to transmit incident light, and larger than the light transmission region outside the light transmission region, and the soft contact lens.
  • the first light blocking region is formed to have a smaller size and blocks the incident light, and the first light blocking region has a plurality of micro holes that are transparent to the incident light, which are uneven throughout the first light blocking region. It is characterized in that the distribution.
  • the fine hole is characterized in that the distribution density is formed high in the outer direction of the first light blocking region.
  • the soft contact lens may further include a second light blocking region formed in a predetermined area between the light transmitting region and the first light blocking region to have a smaller size than the first light blocking region to block the incident light. It features.
  • the light transmission region may be formed in a quadrangular or rhombus shape or in a circular shape having a predetermined diameter.
  • the light transmissive region may be formed to have a diameter greater than zero and smaller than the diameter of the intraocular lens opening portion to which the soft contact lens is mounted.
  • the first light blocking region may have a diameter larger than the diameter of the light transmitting region and smaller than the diameter of the soft contact lens in a donut shape.
  • the light transmitting region is characterized in that formed in a diameter of 1.00 ⁇ 2.20mm.
  • the first light blocking region is characterized in that the diameter of 4.00 ⁇ 9.50mm.
  • the second light blocking region may be formed in a donut shape with a diameter smaller than the first light blocking region in a predetermined region adjacent between the light transmitting region and the first light blocking region.
  • the second light blocking region may be formed to have a diameter of 2.5 to 3.5 mm larger than the diameter of the light transmitting region.
  • the first light blocking region is characterized by being colored with a color that can adjust the contrast sensitivity of the field of view.
  • the first light blocking region is characterized by being colored in a yellow or black series.
  • the second light blocking region is characterized in that the brightness of the same series as the first light blocking region is colored with a color higher than a predetermined reference.
  • micropores are characterized by being formed with a diameter of 0.10 ⁇ 0.20mm.
  • the present invention provides a method for manufacturing a soft contact lens, the step of forming a light transmission region for transmitting incident light at a predetermined size in the center of the soft contact lens, and larger than the light transmission region to the outside of the light transmission region And forming a first light blocking region that blocks the incident light to a size smaller than that of the soft contact lens, and uneven distribution of a plurality of micropores that can transmit the incident light in the entire interior of the first light blocking region. Forming a furnace.
  • the method may further include forming a second light blocking region in the predetermined region adjacent between the light transmitting region and the first light blocking region to block the incident light to a smaller size than the first light blocking region. It features.
  • the fine hole is characterized in that the distribution density is formed high in the outer direction of the first light blocking region.
  • the light transmission region may be formed in a quadrangular or rhombus shape or in a circular shape having a predetermined diameter.
  • the light transmission region is characterized in that it is formed larger than zero and smaller than the diameter of the intraocular lens opening portion to which the soft contact lens is mounted.
  • the first light blocking region may have a diameter larger than the diameter of the light transmitting region and smaller than the diameter of the soft contact lens in a donut shape.
  • the light transmitting region is characterized in that formed in a diameter of 1.00 ⁇ 2.20mm.
  • the first light blocking region is characterized in that the diameter of 4.00 ⁇ 9.50mm.
  • the second light blocking region may be formed in a donut shape with a diameter smaller than the first light blocking region in a predetermined region adjacent between the light transmitting region and the first light blocking region.
  • the second light blocking region may be formed to have a diameter of 2.5 to 3.5 mm larger than the diameter of the light transmitting region.
  • micropores are characterized by being formed with a diameter of 0.10 ⁇ 0.20mm.
  • the present invention in the manufacture of soft contact lenses for presbyopia, there is an advantage of increasing the depth of focus by selectively blocking the light incident to the eye by forming a light transmission area having a predetermined diameter in the center of the soft contact lens have.
  • the light blocking region having a predetermined diameter on the outside of the light transmission region and forming a micro hole in the light blocking region, the distribution density of the micro holes increases toward the outside of the corresponding region.
  • the present invention has the advantage of preventing the damage to the optic nerve or optic cells by blocking the ultraviolet light or blue light as well as adjusting the contrast sensitivity by performing a coloring with a color that can control the contrast sensitivity in the light transmission region and the light blocking region. .
  • FIG. 1 is a view showing an example in which a soft contact lens for presbyopia according to an embodiment of the present invention is mounted on the eyeball,
  • FIG. 2 is a detailed structural diagram of a soft contact lens for presbyopia according to an embodiment of the present invention
  • Figure 3 is an illustration of the coloring of the soft contact lens for presbyopia according to an embodiment of the present invention.
  • FIG. 1 illustrates an example in which a soft contact lens for presbyopia according to an embodiment of the present invention is mounted on an eyeball.
  • the human eye 100 may include an intraocular lens 104, ie, a lens, located on the cornea 102 and the posterior surface of the cornea 102.
  • the cornea 102 is the first focusing element of the eye 100
  • the intraocular lens 104 is the second focusing element of the eye 100.
  • the eye 100 may also include a retina 106 in contact with the interior of the posterior surface of the eye 100.
  • the retina 106 contains receptor cells that are primarily responsible for vision and may include a high sensitivity region known as the macula, where signals are received and transmitted through the optic nerve to the brain's visual center.
  • the light 112 incident to the cornea 102 is refracted through the intraocular lens 104 to focus on the surface of the retina 106 to recognize an object.
  • the intraocular lens 104 does not contract smoothly due to presbyopia, some of the light 112 incident to the cornea 102 through various paths is not accurately focused on the surface of the retina 106.
  • the presbyopia phenomenon such as blurring of an object is generated.
  • the soft contact lens 110 of the present invention in which the light blocking unit 108 is formed so as to selectively block the light 112 by adjusting the amount of light 112 incident to the cornea 102.
  • the light 112 incident to the intraocular lens 104 through the cornea 102 may be selectively blocked, thereby retina 106.
  • the depth of focus may be increased.
  • a problem may occur in that the field of view is dark due to the light 114 and 116 blocked to increase the depth of focus as described above, but for such a problem, a plurality of fine particles capable of injecting light into the light blocking unit 108 may be caused. By forming holes (not shown), it is possible to ensure a bright field of view.
  • FIG. 2 shows the structure of the soft contact lens 110.
  • FIG. 2 illustrates a structure of the soft contact lens 110 for presbyopia of FIG. 1 according to an exemplary embodiment of the present invention, and includes a first light blocking unit constituting the light transmitting region 200 and the light blocking unit 108.
  • the region 202, the second light blocking region 206, and the micro holes 204 formed in the first light blocking region 202 may be included.
  • the light transmission region 200 is formed at a predetermined size in the center of the soft contact lens 110 to transmit incident light.
  • the light transmissive region 110 reduces the size of the pupil, thereby reducing the light 112 incident on the cornea 102 at various angles, and allowing light 112 to be incident only in a consistent direction. ) To increase the depth of focus on the retina 106.
  • the angle of light 112 incident to the light transmission region 200 is reduced.
  • the path through which light 112 is incident is narrowed by a pinhole effect, thereby reducing the amount of incident light 112, thereby increasing the depth of focus by eliminating some of the various images created at various locations. To make it possible. At this time, the light of the same path is consistently clear image regardless of the distance.
  • such a light transmission area 200 generally increases the depth of focus as the size is smaller, but if the size is too small, it is not suitable for the general size of the pupil, for example, the size of 2 to 4 mm, but also weak light When the pupil is enlarged due to scattered light reflection, a donut shape may be seen in the field of view. In addition, if the light transmission region 200 is too large, the pinhole effect may be reduced, and thus the depth of focus may not be adjusted.
  • the light transmission region 200 may be formed in a circular shape having a predetermined diameter of a predetermined diameter as shown in FIG. 2, and the diameter of the opening region 130 on the intraocular lens 104. It is formed smaller than to reduce the pupil size, in this case, the diameter of the light transmission region 200 may be set to, for example, 1.00 to 2.20 mm.
  • the shape of the light transmissive area 200 as described above has been described with an example of being formed in a circular shape for convenience of description, but the shape of the light transmissive area 200 may be modified in a rectangular or rhombus shape in some cases. .
  • the first light blocking region 202 is formed outside the light transmission region 200 to be larger than the light transmission region 200 and smaller than the soft contact lens 110 to enter the cornea 102. To block.
  • the first light blocking region 202 may be formed larger than the diameter of the light transmission region 200 and smaller than the diameter of the soft contact lens 110.
  • the focus is achieved by transmitting only the light 114 and 116 passing through the light transmission region 200 among the light 112 incident to the cornea 102 by the light blocking function of the first light blocking region 202. Can increase.
  • the amount of light 112 incident to the eye 100 is reduced, resulting in a dark field of view, and the first light blocking region on the field of view.
  • a donut shape according to the shape of 202 may appear.
  • the amount of light 112 that is incident is formed by forming a plurality of micro holes 204 that can transmit the light 112. It can be added to reduce donuts and provide a bright field of view.
  • the micro-holes 204 as described above may be unevenly distributed in the first light blocking region 202, and more preferably, the number of micro holes 204 is gradually increased toward the outer side of the first light blocking region 202. In other words, by increasing the distribution density, the donut-shaped blurry image can be further reduced, and the light 112 transmitted by the gradually increasing micropores 204 is secured by a predetermined amount or more, so that the field of view is overall. You can make it brighter.
  • the fine holes 204 as described above can secure enough light as the spacing between the fine holes 204 is narrowed, while the wider the holes can be, the higher the contrast can be. Therefore, the first light blocking region 202 can be improved.
  • the diameter of the micro holes 204 may be set to, for example, 0.10 to 0.20 mm
  • the diameter of the first light blocking region 202 may be set to, for example, 4.00 to 9.50 mm.
  • the second light blocking region 206 is formed to have a smaller size than the first light blocking region 202 in an adjacent predetermined region such as an interface between the light transmitting region 200 and the first light blocking region 202 and the light 112. To block.
  • the second light blocking region 206 may be colored in a bright color, and the pinhole effect may be further increased by the second light blocking region 206, thereby increasing the depth of focus. do. That is, when a plurality of micro holes 204 are distributed throughout the first light blocking region 202, light 112 is transmitted through the micro holes 204, which causes astigmatism effect due to enlargement of the pupil in a dark place. This may be achieved by using the second light blocking region 206 colored with a high brightness to alleviate this.
  • the color to be colored in the second light blocking region 206 may be set to a color whose brightness of a series, such as the first light blocking region 202, is higher than a predetermined reference value.
  • the diameter of the second light blocking region 206 as described above may be set to, for example, about 2.5 to 3.5 mm larger than the diameter of the light transmitting region 200.
  • FIG 3 illustrates various patterns colored in the light transmission region 200, the first light blocking region 202, and the second light blocking region 206 according to an exemplary embodiment of the present invention.
  • part or all of the light transmission region 200 and the first light blocking region 202 are colors that can adjust contrast sensitivity of the field of view, for example, yellow or black. 3 may be colored in a different color series for convenience, and the second light blocking area 206 may be colored in a dark color, but the same color as that of the first light blocking area 202 may be used. It can be colored by color.
  • the color in the coloring of the light transmitting region 200, the first light blocking region 202, and the second light blocking region 206 as described above, the color can be selected according to the light of the wavelength to be blocked if necessary, The contrast of the coloring can also be adjusted.
  • contrast sensitivity can be controlled by coloring the light transmitting area 200, the first light blocking area 202, and the second light blocking area 206 as described above, and block the ultraviolet and blue light to prevent optic nerves or eye cells. It can also prevent damage. In addition, aesthetic effects may be obtained when applied to patients with iris damage, such as iris defects.
  • the present invention in the manufacture of soft contact lenses for presbyopia, by forming a light transmission region for transmitting light having a predetermined diameter in the center of the soft contact lens to selectively block the light entering the eye This has the advantage of increasing the depth of focus.
  • the light blocking region having a predetermined diameter on the outside of the light transmission region and forming a micro hole in the light blocking region, the distribution density of the micro holes increases toward the outside of the corresponding region. It ensures a bright field of view by securing the amount of light that can be lacking.
  • the present invention not only controls contrast sensitivity by coloring the light transmissive region and the light blocking region in a color capable of adjusting contrast sensitivity, but also blocks ultraviolet rays or blue light to prevent damage to the optic nerve or optic cell.

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

Abstract

La présente invention concerne une lentille de contact souple comprenant : une région de transmission de lumière formée dans une dimension préétablie au niveau d'une partie centrale de la lentille de contact souple, de façon à permettre à une lumière incidente de traverser cette dernière ; et une première région de blocage de lumière formée autour du périmètre de la région de transmission de lumière de façon à être plus grande que la région de transmission de lumière et plus petite que la lentille de contact souple de façon à bloquer la lumière incidente, la première région de blocage de lumière ayant une pluralité de trous fins qui peuvent permettre à la lumière incidente de traverser ces derniers et sont répartis de façon non-uniforme sur toute la partie intérieure de la première région de blocage de lumière.
PCT/KR2014/000461 2014-01-16 2014-01-16 Lentille de contact souple pour presbytie et son procédé de fabrication WO2015108211A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/000461 WO2015108211A1 (fr) 2014-01-16 2014-01-16 Lentille de contact souple pour presbytie et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/000461 WO2015108211A1 (fr) 2014-01-16 2014-01-16 Lentille de contact souple pour presbytie et son procédé de fabrication

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WO2015108211A1 true WO2015108211A1 (fr) 2015-07-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3285110A1 (fr) * 2016-08-18 2018-02-21 Johnson & Johnson Vision Care Inc. Lentille de contact présentant une meilleure performance visuelle et un halo minimisé faisant appel à l'apodisation de la pupille

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080151183A1 (en) * 2006-12-22 2008-06-26 Altmann Griffith E Ophthalmic lens including photochromic material
KR20090015117A (ko) * 2006-06-08 2009-02-11 비젼 씨알씨 리미티드 근시의 진행을 제어하기 위한 수단
JP2010227615A (ja) * 2003-05-28 2010-10-14 Acufocus Inc 可視性の回折模様を生成せずに栄養素伝達を維持するように構成されたマスク
KR20120098641A (ko) * 2009-10-20 2012-09-05 가부시끼가이샤 유니버설 뷰 소프트 콘택트 렌즈
US20130131795A1 (en) * 1999-03-01 2013-05-23 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130131795A1 (en) * 1999-03-01 2013-05-23 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
JP2010227615A (ja) * 2003-05-28 2010-10-14 Acufocus Inc 可視性の回折模様を生成せずに栄養素伝達を維持するように構成されたマスク
KR20090015117A (ko) * 2006-06-08 2009-02-11 비젼 씨알씨 리미티드 근시의 진행을 제어하기 위한 수단
US20080151183A1 (en) * 2006-12-22 2008-06-26 Altmann Griffith E Ophthalmic lens including photochromic material
KR20120098641A (ko) * 2009-10-20 2012-09-05 가부시끼가이샤 유니버설 뷰 소프트 콘택트 렌즈

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3285110A1 (fr) * 2016-08-18 2018-02-21 Johnson & Johnson Vision Care Inc. Lentille de contact présentant une meilleure performance visuelle et un halo minimisé faisant appel à l'apodisation de la pupille
CN107765449A (zh) * 2016-08-18 2018-03-06 庄臣及庄臣视力保护公司 利用瞳孔切趾的具有改善的视觉性能和最小化的光晕的接触镜片
US10838234B2 (en) 2016-08-18 2020-11-17 Johnson & Johnson Vision Care, Inc. Contact lens with improved visual performance and minimized halo utilizing pupil apodization
CN107765449B (zh) * 2016-08-18 2021-02-26 庄臣及庄臣视力保护公司 利用瞳孔切趾的具有改善的视觉性能和最小化的光晕的接触镜片
US11686954B2 (en) 2016-08-18 2023-06-27 Johnson & Johnson Vision Care, Inc. Contact lens with improved visual performance and minimized halo utilizing pupil apodization

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