TWI257493B - Hybrid refractive birefringent multifocal ophthalmic lenses - Google Patents

Hybrid refractive birefringent multifocal ophthalmic lenses Download PDF

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TWI257493B
TWI257493B TW091117096A TW91117096A TWI257493B TW I257493 B TWI257493 B TW I257493B TW 091117096 A TW091117096 A TW 091117096A TW 91117096 A TW91117096 A TW 91117096A TW I257493 B TWI257493 B TW I257493B
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lens
regions
annular
optical power
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TW091117096A
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Jeffrey H Roffman
Kahled Chehab
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Johnson & Johnson Vision Care
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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1621—Pseudo-accommodative, e.g. multifocal or enabling monovision enabling correction for monovision
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1618—Multifocal lenses
    • 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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/042—Simultaneous type
    • 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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2002/16965—Lens includes ultraviolet absorber
    • A61F2002/1699—Additional features not otherwise provided for

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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)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Lenses (AREA)

Description

1257493 五、發明說明（1 發明範圍 本tr夕焦點眼科透鏡。特別地，本發明提供 透鏡，其2雙折射材料與具有—個以上之光學焦度或焦 距的區域*一者。 發明背景 10 15 經濟部智慧財產局員工消費合作社印製 20 當一個人的年紀大了，眼睛便較不能調適或彎曲其水 晶體，以聚焦於相當接近觀察者的物件。此狀況稱為老花 眼。類似地，對於眼睛的水晶體已被移除而以植入眼内的 透鏡取代的人而言，調適的能力完全失去了。 在用於矯正眼睛無法調適的方法中，最常見的方法是 具有一個以上之光學焦度的透鏡。特別地，已發展出隱形 與眼内透鏡，其中提供遠與近光焦度區域。這些透鏡有缺 點，其原因為匕們難以製造。此外，遠與近光焦度二者的 使用導致在每一距離有若干的影像對比損失，產生不完全 清晰的影像。 另一習知的方法是使用繞射的同時視力雙焦點透鏡， 其併有繞射光學元件與折射元件二者。這些透鏡的不利之 處是光會漏失至較高階的繞射。此外，剩餘的光分裂於遠 視與近視之間，導致較不清晰的影像。此外，這些透鏡極 難製造。 再一習知的方法是使用雙折射材料或具有雙折射率$ 材料。然而，習知的雙折射透鏡在使用時不利，因為經_ 透鏡所見的影像不完全清晰。
297 公釐）91306A 本紙張尺度適用中國國家標準(CNS)A4規格（210
五、發明說明（2) 1257493 所以 之某些或全::點種多焦點遷鏡’其克服先 前技藝的透鏡 号X明與較佳貫施例詳細說明 本發明提供—種多焦點透鏡及 :同光焦度輸、環形區域與雙折射材用:: ^明的透鏡提供多焦點透鏡， 清晰的視覺效果。 /、4在近與妓離皆提供 10 15 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 20 在一實施例中，本發明提供一 二折射焦度交錯的同心、環觀基本上由至少 「透鏡」意指隱形眼;==折：料組成。 费HP上 兄眼内透鏡、角膜植入透鏡、 眼鏡或其虹合。較佳地，本發明的透鏡是隱 凸出==透鏡本身。替代地，透鏡的凹人或 同=:=ΓΓ成，的剩餘部分由各向 m的材㈣成。再替代地或較佳地，雙 於非雙折射透鏡材料或各向 折射材料«上°「埋放」意指雙 雙折射材料是習知的，4/°麟製造透鏡的適當 3 (無限制性）有機聚合物及 由施加應力或伸展而將雙折糾人的聚合物。 9 中2向同性的材料與雙折射材料組合使用的實施例 料可以是用於形成眼科透鏡的任何材 #。較佳地’所用的材料適用於形成硬或（更佳地)軟 形眼鏡。適㈣軟式隱形目峰材料包含(無㈣性㈣； 1257493
10 15 經濟部智慧財產局員工消費合作社印製 20 二此合物，巨聚合物包含(無限_全部 附於此ί'參考之關專#彳5,371，147 5,057,578號所揭示的水《、切_水凝膠等及其組 。更仏地，fe形眼鏡的表面是石夕氧烧，或含石 能者，其包含(無限制性)聚二甲基石夕氧烧巨聚合物减B 在雙折射材料埋放於透鏡内的透鏡中，較佳地， 射材料係埋放成為俾使它實f上全部在透鏡的視覺=域 中。此外，雙折射材料較佳為埋放於大部分透鏡材料中， 以確保讓戴鏡者舒服。所埋放的雙折㈣财以藉由任何 傳統方法，而引人非雙折射或各向同性的透鏡材料中。例 如j:以首先形成雙折射材料，然後以透鏡材料環繞之， 此，藉由將雙折射材料插人—隱形眼鏡半鑄模(透鏡材料 接著將配給至該半鑄模巾），引人另—半鑄模，及使禱模 總成硬化。於另一例中，透鏡材料可以配給至一半鑄模中 並部分硬化，接著將雙折射材料插在部分硬化的透鏡材料 上’配給額夕卜的透鏡材料，引入第二半鑄模，及使鑄模總 成硬化。 在本發明的透鏡中，提供至少二同心環形區域。在隱 形眼鏡的事例中，環形區域將在透鏡的視覺區域中。環形 區域之一的折射光焦度實質上等於遠光學焦度，或矯正戴 透鏡者的遠視度數所需要的光焦度。遠光學焦度區域與一 區域交錯，該區域的折射光焦度實質上等於近光學焦度， 或襟正戴透鏡者的近視度數所需要的光焦度。 在一實施例中，設有一對透鏡，其中每一透鏡的光學 -5-
本纸張尺度適用中國國家標準(CNS)A4規格（210x297公髮） 1257493 ： 五、發明說明（4) 區域之中央部分提供實質上等於遠光學焦度的光學焦度。 環形區域或交錯的遠與近光學焦度環繞此中央區域。交錯 的遠與近光學焦度之環圈環繞此中央光學區域。替代地， 一透鏡可以是如上述，而另一透鏡具有一中央區域，其光 5 焦度實質上等於近光學焦度，且由交錯的近與遠光學焦度 環形區域環繞。 經濟部智慧財產局員工消費合作社印製 在一較佳實施例中，本發明提供一對眼科透鏡，一透 鏡是戴在主控的眼睛中，而一透鏡戴在非主控的眼睛中。 「主控的眼睛」意指控制遠視的眼睛。由主控的眼睛所戴 10 的透鏡具有一表面，較佳為凸出表面，其中央光學區域具 備實質上係所欲的遠光學焦度，及具有一表面，較佳為凹 入表面，其光學區域具備至少二同心環形區域，至少二同 心環形區域之每一區域的光焦度實質上等於遠光學焦度。 凸出與凹入表面之任一者或二者可具有額外的環形區域， 15 其具備遠光學焦度、近光學焦度或其組合。較佳地，一表 面（更佳為凸出表面）僅具有中央光學區域，無環形區域， 而對立的表面（較佳為凹入表面）在此實施例中具有至少二 遠與近光學焦度交錯的環形區域。最佳地，凸出表面僅具 有一中央光學區域，其具有遠光學焦度，而凹入表面具有 20 至少二遠與近光學焦度交錯的區域。 此外，在此實施例中，由非主控的眼睛所戴的透鏡具 有一表面，較佳為凸出表面，其中央區域具備實質上係所 欲的近光學焦度。對立的表面，較佳為凹入表面，在它的 光學區域中具有至少二同心環形區域。至少二同心環形區 -6- 本紙張尺度適用中國國家標準(CNS)A4規格（210x297公釐） 1257493 五 10 15 20 、發明說明（5 ) 域之母一區域的光焦度貫質上等於近光學焦度。凸出與凹 入表面之任一者或二者具有額外的環形區域，其具備遠光 學焦度，而與具有近光學焦度者交錯。 :就各種隱形眼鏡實施例而言，典型上，透鏡將由非光 予雙凸與周緣區域之一或二者構成。待用於遠與近光學焦 度之隱形眼鏡光學區域的比例可以如同美國專利 5,929,969、5,835，192、5,715，G31、5 682 223、5 485 228 與5,448,312號所揭示者而決定，其全部附於此供參考。 在本發明的透鏡之全部實施例中，遠與近光學焦度可 以是非球形或球形焦度，但較佳為球形。除了遠與近=學 焦度以外，透鏡可具有附加於表面上之很多各種矯正光學 特徵，例如，柱面光焦度。 本舍明的透鏡之環形區域可以由任何傳統方法形成。例 如’其内形成環形區域的隱形眼鏡可藉由利用交錯的半經 的鑽石車刀切削製造。該區域可以鑽石車刀切削形成於用 來生產本發明之透鏡的鑄模上。接著，-適當的液体樹脂 注入於鑄模之間，然後，將樹脂壓縮及硬化以形成本發明 的透鏡替代地，該區域可以鑽石車刀切削形成在透鏡 上。類似地，眼鏡可使用其内形成有環形區域的鎢模而形 成。形成透鏡的額外方法是在透鏡製造技藝的-般技 術之範疇内。 又议 尺度適用中國國家

Claims (1)

1257493 A8 B8 C8 D8 專利申請案第91117096,號 ， ROC Patent Appln. No.91117096 修正後無劃線之中$申f專#範圍修正頁-附件(二) Amended Claims in Chinese — Κηεΐ.ΓΤΠ 六、申請專利範圍 (民國94年10月4曰送異） (Submitted on October ^ , 2005) 1. 3. 10 經濟部智慧財產局員工消費合作社印製 -種透鏡，包括折射光焦度交錯之至少二同心、環形 區域與一雙折射材料，其中該環形區域係遠光學焦度 與近光學焦度交錯的區域。 2. —種透鏡，包括折射光焦度交錯之至少二同心、環形 區域與一雙折射材料，其中每一環形區域的寬度是在 直接相鄰的環形區域或諸區域之寬度的約0.5至約2 公厘内，而曲率半徑是在直接相鄰的環形區域或諸區 域之曲率半徑的約0.075至約0·75公厘内。 一種透鏡，包括折射光焦度交錯之至少二同心、環形 區域與一雙折射材料，其中該環形區域包括與三個近 光學焦度區域交錯之三個遠光學焦度環形區域。 本紙張尺度適用中國國家標準(CNS)A4規格（210x297公釐） 91306B-接
TW091117096A 1999-12-15 2001-04-02 Hybrid refractive birefringent multifocal ophthalmic lenses TWI257493B (en)

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US09/466,301 US6250757B1 (en) 1999-12-15 1999-12-15 Hybrid refractive birefringent multifocal ophthalmic lenses

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TW089126508A TW539885B (en) 1999-12-15 2001-04-02 A first and a second contact lens for a lens wearer

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US (1) US6250757B1 (zh)
EP (1) EP1250609B1 (zh)
JP (1) JP4937475B2 (zh)
KR (1) KR100782288B1 (zh)
CN (1) CN1225669C (zh)
AR (1) AR031542A1 (zh)
AU (1) AU769702B2 (zh)
BR (1) BR0016386B1 (zh)
CA (1) CA2394305C (zh)
DE (1) DE60026583T2 (zh)
HK (1) HK1048662B (zh)
TW (2) TWI257493B (zh)
WO (1) WO2001044838A2 (zh)

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