DE3246306A1 - Bifocal lens of bivisual type - Google Patents

Bifocal lens of bivisual type

Info

Publication number
DE3246306A1
DE3246306A1 DE19823246306 DE3246306A DE3246306A1 DE 3246306 A1 DE3246306 A1 DE 3246306A1 DE 19823246306 DE19823246306 DE 19823246306 DE 3246306 A DE3246306 A DE 3246306A DE 3246306 A1 DE3246306 A1 DE 3246306A1
Authority
DE
Germany
Prior art keywords
lens
bivisual
type
bifocal lens
area
Prior art date
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.)
Ceased
Application number
DE19823246306
Other languages
German (de)
Inventor
Dieter Dr. 6450 Hanau Kockott
Herbert 8752 Glattbach Schwind
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciba Vision GmbH
Original Assignee
Titmus Eurocon Kontaktlinsen GmbH
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 Titmus Eurocon Kontaktlinsen GmbH filed Critical Titmus Eurocon Kontaktlinsen GmbH
Priority to DE19823246306 priority Critical patent/DE3246306A1/en
Publication of DE3246306A1 publication Critical patent/DE3246306A1/en
Ceased legal-status Critical Current

Links

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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • 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

Abstract

A bifocal lens of bivisual type, in which the reading area and the distance-vision part are divided into a plurality of concentric annular areas (F1 to F3 and N1 to N3) which are arranged alternately in the radial direction and whose area ratio, proceeding from the lens centre, in the radial direction towards the lens edge is constant in each case.

Description

Bifokallinse vom bivisuellen Typ Bifocal lens of the bivisual type

Die Erfindung betrifft eine Bifokallinse vom bivisuellen Typ mit konzentrisch zueinander angeordnetem Nah- und Fernteil.The invention relates to a bifocal lens of the bivisual type with concentric near and far part arranged to one another.

Bei konzentrischen Bifokallinsen nach dem simultanen bzw.With concentric bifocal lenses after the simultaneous or

bivisuellen Prinzip liegt beispielsweise in der Linsenmitte der Fernteil und konzentrisch um diesen der Nahteil, welche gleichzeitig vor der Pupille liegen. Die Bifokallinse nach dem simultanen bzw. bivisuellen Typ bildet simultan die Ferne und Nähe auf der Netzhaut ab. Im zentralen Nervensystem wird dasjenige Bild ausgewählt, auf das sich der Kontaktlinsenträger konzentriert. Bei raschem Hell-Dunkel-Wechsel öffnet sich die Pupille rasch und das Flächenverhältnis der davor liegenden Nah- und Fernzone ändert sich entsprechend.The bivisual principle lies in the middle of the lens, for example, in the distant part and concentrically around this the near part, which at the same time lie in front of the pupil. The bifocal lens of the simultaneous or bivisual type simultaneously forms the distance and sew down on the retina. In the central nervous system, that image is selected on which the contact lens wearer focuses. With rapid light-dark change the pupil opens quickly and the area ratio of the near- and far zone changes accordingly.

Dies kann zu vörubergehender Visusminderung führen. Insbesondere bei Tunneldurchfahrten oder bei Einfahrten in Tiefgaragen ergibt sich aufgrund der Pupillenerweiterung die genannte Beeinträchtigung beim Sehen.This can lead to temporary loss of vision. Especially with Passing through tunnels or entering underground garages results from the dilated pupil the said impairment in vision.

Aufgabe der Erfindung ist es daher, eine Bifokallinse der eingangs genannten Art zu schaffen, bei der bei raschem Hell-Dunkel-Wecksel das Sehvermögen nicht beeinträchtigt wird.The object of the invention is therefore to provide a bifocal lens of the initially mentioned to create the type mentioned, in the case of rapid light-dark wake up the eyesight is not affected.

Diese Aufbage wird erfindungsgemäß dadurch gelöst, daß der Nah- und Fernteil in mehrere konzentrische Kreisringflächen aufgeteilt ist, die in radialer Richtung alternierend angeordnet sind.This Aufbage is solved according to the invention in that the near and Fernteil is divided into several concentric circular ring surfaces, which are in radial Direction are arranged alternately.

In bevorzugter Weise kan das Flächenverhältnis (Fläche des bzw. der kreisringförmigen Nahteile/Fläche des bzw. der kreisringförmigen Fernteile) ausgehend von der Linsenmitte in radialer Wichtung zuin Linsenrand hin jeweils konstant bzw. annähernd konstant gehalten werden.The area ratio (area of the circular near parts / area of the circular ring-shaped distant part (s) from the center of the lens in radial weighting towards the edge of the lens constant or be kept approximately constant.

Bei der Erfindung wird beim Öffnen der Pupillc die davor lieende Kontaktlinsenfläche zwar größer, jedoch bleibt das Verhältnis der relevanten Flachen (Fläche des Nahteil/Fläche des Fernteils), die für das Nah- und Fernsehen verantwortlich sind, zumindest annähernd konstant. Auf diese Weise wird bei raschem Hell-Dunkel-Wechsel die beibekannten konzentrischen Bifokallinsen vom bivisuellen Typ vorübergehend auftretende Visusminderung vermieden.In the invention, when the pupil is opened, the contact lens surface in front of it becomes although larger, the ratio of the relevant areas (area of the near part / area of the distant part), which are responsible for the local and television, at least approximately constant. In this way, when there is a rapid light-dark change, the one known Concentric bifocal lenses of the bivisual type temporarily occurring visual impairment avoided.

In der beiliegenden Figur ist schematisch ein Ausführungsbeispiel der Erfindung dargestellt.An exemplary embodiment is shown schematically in the accompanying figure of the invention shown.

Die in der Figur schematisch dargestellte Linse besitzt in der Linsnmitte einen Fernteil mit der Fläche F1, der konzentrisch umgeben ist von einem Nahteil mit Kreisringfläche N1. Konzentrisch um diese schließen sich, in radialer Richtung zum Linsenrand hin gesehen, weitere Fernteile mit den Flächen F und F sowie Nahteile mit den Flächen 2 3 N und N an.The lens shown schematically in the figure has the lens center a distance part with the area F1, which is concentrically surrounded by a near part with circular ring area N1. Concentrically around these close in a radial direction Looking towards the edge of the lens, further distant parts with areas F and F as well as near parts with the areas 2 3 N and N.

2 3 Fr den Fall, daß F /N = F + F /N + N = F + F + F / 1 1 1 2 1 2 1 2 3 # + N + N = 1 ist, 1 2 3 sind alle Kreisringflächen gleich groß, d. h. die Radien der Kreise sind tl s In der folgenden Tabelle 1 sind in mm mit B1 der Durchmesser des in der Linsenmitte liegenden Fernteils und mit B2 bis B6 die Breiten der konzentrisch dazu liegenden sich abwechselnden kreisringförmigen Nah- und Fernteile angegeben.2 3 For the case that F / N = F + F / N + N = F + F + F / 1 1 1 2 1 2 1 2 3 # + N + N = 1, 1 2 3 all annulus areas are the same large, i.e. the radii of the circles are tl s In the following table 1 the diameter of the distant part lying in the center of the lens is indicated in mm with B1 and with B2 to B6 the widths of the concentric, alternating circular near and distant parts.

In der nachfolgenden Tabelle 2 sind mit r der Radius der Kreisflächen des in der Linsenmitte liegenden Kernteils und mit r2 bis r6 die Radien der Zonenübergänge zwischen den konzentrischen kreisringförmigen Nah- und Fernteilen in mn angegeben.In Table 2 below, r is the radius of the circular areas of the core part lying in the middle of the lens and with r2 to r6 the radii of the zone transitions between the concentric circular near and far parts given in mn.

Tabelle 1 DURCHMESSER BZW. BREITE DER EINZELNEN ZONEN (mm) B1 B2 B3 B4 B5 B6 3. 000 0. 621 0. 477 0. 402 0. 354 0. 320 3. 200 0. 663 0. 509 0. 429 0. 378 0. 341 3. 400 0. 704 0. 540 0. 456 0. 401 0. 363 3. 600 0. 746 0. 572 0. 482 0. 425 0. 384 3. 800 0. 787 0. 604 0. 509 0. 449 0. 406 4. 000 0. 828 0. 636 0. 536 0. 472 0. 427 4. 200 0. 870 0. 667 0. 563 0. 496 0. 448 4. 400 0. 911 0. 699 0. 589 0. 519 0. 470 4. 600 0. 953 0. 731 0. 616 0. 543 0. 491 4. 800 0. 994 0. 763 0. 643 0. 567 0. 512 5. 000 1. 036 0. 795 0. 670 0. 590 0. 534 5. 200 1. 077 0. 826 0. 697 0. 614 0. 555 5. 400 1. 118 0. 858 0. 723 0. 637 0. 576 5. 600 1. 160 0. 890 0. 750 0. 661 0. 598 5. 800 1. 201 0. 922 0. 777 0. 685 0. 619 6. 000 1. 243 0. 954 0. 804 0. 708 0. 640 6. 200 1. 284 0. 985 0. 831 0. 732 0. 662 6. 400 1. 325 1. 017 0. 857 0. 755 0. 683 6. 600 1. 367 1. 049 0. 884 0. 779 0. 704 6. 800 1. 408 1. 081 0. 911 0. 803 0. 726 7. 000 1. 450 1. 112 0. 938 0. 826 0. 747 Tabelle 2 RADIEN DER EINZELNEN ZONENÜBERGÄNGE (mm) r1 r2 r3 r4 r5 r6 1. 500 2. 121 2. 598 3. 000 3. 354 3. 674 1. 600 2. 263 2. 771 3. 200 3. 578 3. 919 1. 700 2. 404 2. 944 3. 400 3. 801 4. 164 1. 800 2. 546 3. 118 3. 600 4. 025 4. 409 1. 900 2. 687 3. 291 3. 800 4. 249 4. 654 2. 000 2. 828 3. 464 4. 000 4. 472 4. 899 2. 100 2. 970 3. 637 4. 200 4. 696 5. 144 2. 200 3. 111 3. 811 4. 400 4. 919 5. 389 2. 300 3. 253 3. 984 4. 600 5. 143 5. 634 2. 400 3. 394 4. 157 4. 800 5. 367 5. 879 2. 500 3. 536 4. 330 5. 000 5. 590 6. 124 2. 600 3. 677 4. 503 5. 200 5. 814 6. 369 2. 700 3. 818 4. 677 5. 400 6. 037 6. 614 2. 800 3. 960 4. 850 5. 600 6. 261 6. 859 2. 900 4. 101 5. 023 5. 800 6. 485 7. 104 3. 000 4. 243 5. 196 6. 000 6. 708 7. 348 3. 100 4. 384 5. 369 6. 200 6. 932 7. 593 3. 200 4. 525 5. 543 6. 400 7. 155 7. 838 3. 300 4. 667 5. 716 6. 600 7. 379 8. 083 3. 400 4. 808 5. 889 6. 800 7. 603 8. 328 3. 500 4. 950 6. 062 7. 000 7. 826 8. 573 L e e r s e i t eTable 1 DIAMETER OR WIDTH OF THE INDIVIDUAL ZONES (mm) B1 B2 B3 B4 B5 B6 3. 000 0. 621 0. 477 0. 402 0. 354 0. 320 3. 200 0. 663 0. 509 0. 429 0. 378 0. 341 3. 400 0. 704 0. 540 0. 456 0. 401 0. 363 3. 600 0. 746 0. 572 0. 482 0. 425 0. 384 3. 800 0. 787 0. 604 0. 509 0. 449 0. 406 4. 000 0. 828 0. 636 0. 536 0.472 0.427 4. 200 0.870 0. 667 0. 563 0.496 0.448 4. 400 0. 911 0. 699 0.589 0. 519 0.470 4. 600 0. 953 0. 731 0. 616 0. 543 0.491 4. 800 0. 994 0. 763 0. 643 0. 567 0. 512 5. 000 1. 036 0. 795 0. 670 0. 590 0. 534 5. 200 1. 077 0. 826 0. 697 0. 614 0. 555 5. 400 1. 118 0. 858 0. 723 0. 637 0. 576 5. 600 1. 160 0. 890 0. 750 0. 661 0. 598 5. 800 1. 201 0. 922 0. 777 0. 685 0. 619 6. 000 1. 243 0. 954 0. 804 0. 708 0. 640 6. 200 1. 284 0. 985 0. 831 0. 732 0. 662 6. 400 1. 325 1. 017 0. 857 0. 755 0. 683 6. 600 1. 367 1.049 0. 884 0. 779 0. 704 6. 800 1. 408 1.081 0. 911 0. 803 0. 726 7. 000 1. 450 1. 112 0. 938 0. 826 0. 747 Table 2 RADIUS OF THE INDIVIDUAL ZONE TRANSITIONS (mm) r1 r2 r3 r4 r5 r6 1,500 2 121 2 598 3 000 3 354 3 674 1 600 2 263 2 771 3 200 3. 578 3. 919 1. 700 2. 404 2. 944 3. 400 3. 801 4. 164 1. 800 2. 546 3. 118 3. 600 4.025 4.409 1. 900 2. 687 3. 291 3. 800 4. 249 4. 654 2. 000 2. 828 3. 464 4. 000 4,472 4,899 2nd 100 2nd 970 3rd 637 4th 200 4th 696 5th 144 2nd 200 3rd 111 3rd 811 4. 400 4. 919 5. 389 2. 300 3. 253 3. 984 4. 600 5. 143 5. 634 2. 400 3. 394 4. 157 4. 800 5. 367 5. 879 2. 500 3. 536 4. 330 5. 000 5. 590 6. 124 2. 600 3. 677 4. 503 5. 200 5. 814 6. 369 2. 700 3. 818 4. 677 5. 400 6. 037 6. 614 2. 800 3. 960 4. 850 5. 600 6. 261 6. 859 2. 900 4. 101 5. 023 5. 800 6. 485 7. 104 3. 000 4. 243 5. 196 6. 000 6. 708 7. 348 3. 100 4. 384 5. 369 6. 200 6. 932 7. 593 3. 200 4.525 5. 543 6. 400 7. 155 7. 838 3. 300 4. 667 5. 716 6. 600 7. 379 8. 083 3. 400 4. 808 5. 889 6. 800 7. 603 8. 328 3. 500 4. 950 6. 062 7. 000 7. 826 8. 573 L e r s e i t e

Claims (2)

Bifokallinse vom bivisuellen Typ Patenansprüche: Bifokallinse vom bivisuellen Typ mit konzentrisch zueinanscter angeordnetem Nah- und Kernteil, d a d u r c h g c -k t n n z e i c h n e t , daß der Nah- und Ferntcil in mehrere konzentrischc Kreisringflächen aufgeteilt ist, die in rndialer Richtung alternierend angeordnet sind. Bifocal lens of the bivisual type Patent claims: Bifocal lens from bivisual type with concentrically arranged near and core parts, d a d u r c h g c -k t n n z e i c h n e t that the near and far part in several is divided concentric circular ring surfaces, which alternate in the circular direction are arranged. 2. Bifokallinse nach Ansprüch 1, d a d u r c h g e -k e n n z e i c h n e t , daß das Flächenverhältnis (Fläche des bzw. der kreisringförmigen Nahteile/Fläche des bzw. der kreisringförmigen Fernteile) ausgehend von der Linsenmitte in radialer Richtung zum Linsenrand hin jeweils konstant ist.2. Bifocal lens according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the area ratio (area of the annular near part (s) / area of the annular distant part (s) starting from the center of the lens in a radial direction Direction towards the edge of the lens is constant in each case.
DE19823246306 1982-12-14 1982-12-14 Bifocal lens of bivisual type Ceased DE3246306A1 (en)

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Cited By (45)

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Publication number Priority date Publication date Assignee Title
EP0453410A1 (en) * 1990-04-23 1991-10-23 Ciba-Geigy Ag Contact lens set
WO1992022000A1 (en) * 1991-05-30 1992-12-10 Robert Marie Ophthalmic lens
EP0522852A1 (en) * 1991-07-10 1993-01-13 JOHNSON & JOHNSON VISION PRODUCTS, INC. Segmented multifocal contact lens and method of manufacture
EP0553959A1 (en) * 1992-01-28 1993-08-04 JOHNSON & JOHNSON VISION PRODUCTS, INC. Clear axis, segmented multifocal ophthalmic lens
US5270744A (en) * 1987-06-01 1993-12-14 Valdemar Portney Multifocal ophthalmic lens
EP0574590A1 (en) * 1992-01-06 1993-12-22 Seiko Epson Corporation Contact lens
EP0601846A1 (en) * 1992-12-09 1994-06-15 JOHNSON & JOHNSON VISION PRODUCTS, INC. Pupil-tuned multifocal ophthalmic lens
US5929969A (en) * 1995-05-04 1999-07-27 Johnson & Johnson Vision Products, Inc. Multifocal ophthalmic lens
US6210005B1 (en) 1999-02-04 2001-04-03 Valdemar Portney Multifocal ophthalmic lens with reduced halo size
US6406494B1 (en) 1999-04-30 2002-06-18 Allergan Sales, Inc. Moveable intraocular lens
US6503276B2 (en) 1998-11-10 2003-01-07 Advanced Medical Optics Accommodating multifocal intraocular lens
US6537317B1 (en) 2000-05-03 2003-03-25 Advanced Medical Optics, Inc. Binocular lens systems
US6547822B1 (en) 2000-05-03 2003-04-15 Advanced Medical Optics, Inc. Opthalmic lens systems
US6551354B1 (en) 2000-03-09 2003-04-22 Advanced Medical Optics, Inc. Accommodating intraocular lens
US6554859B1 (en) 2000-05-03 2003-04-29 Advanced Medical Optics, Inc. Accommodating, reduced ADD power multifocal intraocular lenses
US6576012B2 (en) 2001-03-28 2003-06-10 Advanced Medical Optics, Inc. Binocular lens systems
US6599317B1 (en) 1999-09-17 2003-07-29 Advanced Medical Optics, Inc. Intraocular lens with a translational zone
US6616692B1 (en) 1999-04-30 2003-09-09 Advanced Medical Optics, Inc. Intraocular lens combinations
US6638305B2 (en) 2001-05-15 2003-10-28 Advanced Medical Optics, Inc. Monofocal intraocular lens convertible to multifocal intraocular lens
US6645246B1 (en) 1999-09-17 2003-11-11 Advanced Medical Optics, Inc. Intraocular lens with surrounded lens zone
US6660035B1 (en) 2000-08-02 2003-12-09 Advanced Medical Optics, Inc. Accommodating intraocular lens with suspension structure
EP1446692A1 (en) * 2001-08-14 2004-08-18 Johson & Johnson Vision Care Inc. Methods for designing multifocal ophthalmic lenses
US6790232B1 (en) * 1999-04-30 2004-09-14 Advanced Medical Optics, Inc. Multifocal phakic intraocular lens
US7252683B2 (en) * 1998-05-29 2007-08-07 Advanced Medical Optics, Inc. Intraocular lens for inhibiting cell growth and reducing glare
US7713299B2 (en) 2006-12-29 2010-05-11 Abbott Medical Optics Inc. Haptic for accommodating intraocular lens
US7753521B2 (en) 2008-03-31 2010-07-13 Johnson & Johnson Vision Care, Inc. Lenses for the correction of presbyopia and methods of designing the lenses
US7763069B2 (en) 2002-01-14 2010-07-27 Abbott Medical Optics Inc. Accommodating intraocular lens with outer support structure
US7780729B2 (en) 2004-04-16 2010-08-24 Visiogen, Inc. Intraocular lens
US7871437B2 (en) 2006-12-22 2011-01-18 Amo Groningen B.V. Accommodating intraocular lenses and associated systems, frames, and methods
US8025823B2 (en) 2001-01-25 2011-09-27 Visiogen, Inc. Single-piece accommodating intraocular lens system
US8034108B2 (en) 2008-03-28 2011-10-11 Abbott Medical Optics Inc. Intraocular lens having a haptic that includes a cap
US8048156B2 (en) 2006-12-29 2011-11-01 Abbott Medical Optics Inc. Multifocal accommodating intraocular lens
US8187325B2 (en) 2001-01-25 2012-05-29 Visiogen, Inc. Materials for use in accommodating intraocular lens system
US8545556B2 (en) 2002-10-25 2013-10-01 Abbott Medical Optics Inc. Capsular intraocular lens implant
US9011532B2 (en) 2009-06-26 2015-04-21 Abbott Medical Optics Inc. Accommodating intraocular lenses
US9039760B2 (en) 2006-12-29 2015-05-26 Abbott Medical Optics Inc. Pre-stressed haptic for accommodating intraocular lens
US9198752B2 (en) 2003-12-15 2015-12-01 Abbott Medical Optics Inc. Intraocular lens implant having posterior bendable optic
US9271830B2 (en) 2002-12-05 2016-03-01 Abbott Medical Optics Inc. Accommodating intraocular lens and method of manufacture thereof
US9421089B2 (en) 2007-07-05 2016-08-23 Visiogen, Inc. Intraocular lens with post-implantation adjustment capabilities
US9603703B2 (en) 2009-08-03 2017-03-28 Abbott Medical Optics Inc. Intraocular lens and methods for providing accommodative vision
US9636213B2 (en) 2005-09-30 2017-05-02 Abbott Medical Optics Inc. Deformable intraocular lenses and lens systems
US9814570B2 (en) 1999-04-30 2017-11-14 Abbott Medical Optics Inc. Ophthalmic lens combinations
US9987125B2 (en) 2012-05-02 2018-06-05 Johnson & Johnson Surgical Vision, Inc. Intraocular lens with shape changing capability to provide enhanced accomodation and visual acuity
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Cited By (75)

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US6409340B1 (en) 1987-06-01 2002-06-25 Valdemar Portney Multifocal ophthalmic lens
US5270744A (en) * 1987-06-01 1993-12-14 Valdemar Portney Multifocal ophthalmic lens
US6814439B2 (en) 1987-06-01 2004-11-09 Valdemar Portney Multifocal ophthalmic lens
US6527389B2 (en) 1987-06-01 2003-03-04 Advanced Medical Optics, Inc. Multifocal ophthalmic lens
US5657108A (en) * 1987-06-01 1997-08-12 Portney; Valdemar Multifocal ophthalmic lens
US6186625B1 (en) 1987-06-01 2001-02-13 Valdemar Portney Multifocal ophthalmic lens
US5521656A (en) * 1987-06-01 1996-05-28 Portney; Valdemar Method of making an ophthalmic lens
US5877839A (en) * 1987-06-01 1999-03-02 Portney; Valdemar Multifocal ophthalmic lens
EP0453410A1 (en) * 1990-04-23 1991-10-23 Ciba-Geigy Ag Contact lens set
WO1992022000A1 (en) * 1991-05-30 1992-12-10 Robert Marie Ophthalmic lens
US5278592A (en) * 1991-05-30 1994-01-11 Robert Marie Ophthalmic lens
EP0522852A1 (en) * 1991-07-10 1993-01-13 JOHNSON & JOHNSON VISION PRODUCTS, INC. Segmented multifocal contact lens and method of manufacture
GR920100213A (en) * 1991-07-10 1993-05-24 Johnson & Johnson Vision Prod Multifocal contact lenses and method of manufacture.
US5541678A (en) * 1992-01-06 1996-07-30 Seiko Epson Corporation Multifocal contact lens and method and molding die for manufacturing contact lens
EP0574590A1 (en) * 1992-01-06 1993-12-22 Seiko Epson Corporation Contact lens
EP0574590A4 (en) * 1992-01-06 1994-04-06 Seiko Epson Corporation
EP0553959A1 (en) * 1992-01-28 1993-08-04 JOHNSON & JOHNSON VISION PRODUCTS, INC. Clear axis, segmented multifocal ophthalmic lens
US5448312A (en) * 1992-12-09 1995-09-05 Johnson & Johnson Vision Products, Inc. Pupil-tuned multifocal ophthalmic lens
EP0601846A1 (en) * 1992-12-09 1994-06-15 JOHNSON & JOHNSON VISION PRODUCTS, INC. Pupil-tuned multifocal ophthalmic lens
SG160184A1 (en) * 1992-12-09 2010-04-29 Johnson & Johnson Vision Prod Pupil-tuned multifocal ophthalmic lens
US5929969A (en) * 1995-05-04 1999-07-27 Johnson & Johnson Vision Products, Inc. Multifocal ophthalmic lens
US7252683B2 (en) * 1998-05-29 2007-08-07 Advanced Medical Optics, Inc. Intraocular lens for inhibiting cell growth and reducing glare
US9949822B2 (en) 1998-05-29 2018-04-24 Johnson & Johnson Surgical Vision, Inc. Intraocular lens for inhibiting cell growth and reducing glare
US6503276B2 (en) 1998-11-10 2003-01-07 Advanced Medical Optics Accommodating multifocal intraocular lens
US6210005B1 (en) 1999-02-04 2001-04-03 Valdemar Portney Multifocal ophthalmic lens with reduced halo size
US6435681B2 (en) 1999-02-04 2002-08-20 Valdemar Portney Multifocal ophthalmic lens with reduced halo size
US6557998B2 (en) 1999-02-04 2003-05-06 Advanced Medical Optics, Inc. Multifocal ophthalmic lens with reduced halo size
US6790232B1 (en) * 1999-04-30 2004-09-14 Advanced Medical Optics, Inc. Multifocal phakic intraocular lens
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