Lens Includes Ultraviolet Absorber Patents (Class 623/6.6)
  • Patent number: 11793908
    Abstract: A bioanalogic implantable ophthalmic lens (“BIOL”) capable of replacing the natural crystalline lens (NCL) in its various essential functions after the NCL having been removed and BIOL implanted into the posterior eye chamber and placed into the capsular bag vacated from the NCL. At least the posterior surface of the lens has a convex shape and is made from a transparent flexible hydrogel material. At least the anterior and posterior optical surfaces are defined by rotation of one or more conic sections along the main optical axis and the surfaces defined by the rotation will include a plane perpendicular to the axis and conical surface symmetrical by the axis. A hydrogel implantable ophthalmic lens whose optical parameters can be optimized and/or customized by a controlled absorption of electromagnetic radiation resulting in a change of the refractive index of the irradiated hydrogel.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: October 24, 2023
    Assignee: MEDICEM INSTITUTE S.R.O
    Inventors: Vladimir Stoy, Vaclav Petrak, Miroslav Dudic
  • Patent number: 11137623
    Abstract: The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 21.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm measured on an object-side surface is 1.00% or less, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on an eyeball-side surface is 1.00% or less.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 5, 2021
    Assignee: HOYA LENS THAILAND LTD.
    Inventor: Yoichi Ogo
  • Patent number: 11002991
    Abstract: Provided is a spectacle lens including a lens substrate, a multilayer film located on an object-side surface of the lens substrate, and a multilayer film located on an eyeball-side surface of the lens substrate, wherein a blue light absorption rate is 10.0% or higher, the lens substrate includes a blue-light-absorbing compound, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is in a range of 10.0% to 20.0%, and a luminous reflectance measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is less than 2.0%.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 11, 2021
    Assignee: HOYA LENS THAILAND LTD.
    Inventors: Hitoshi Kamura, Yoichi Ogo, Yoshitaka Matsui, Kenji Takashiba
  • Patent number: 10166731
    Abstract: A method for adjusting a light adjustable lens in an optical system includes providing a light adjustable lens in an optical system; providing an ultraviolet light source to generate an ultraviolet light; and irradiating the generated ultraviolet light with a light delivery system onto the light adjustable lens with a center wavelength and with a spatial irradiance profile to change a dioptric power of the light adjustable lens by changing a refraction of the light adjustable lens in a refraction-change zone, thereby causing a wavefront sag, defined as half of a product of the change of the dioptric power and the square of a radius of the refraction-change zone, to be within 28% of its maximum over an ultraviolet spectrum.
    Type: Grant
    Filed: April 22, 2018
    Date of Patent: January 1, 2019
    Assignee: RxSight, Inc.
    Inventors: Robert H. Grubbs, Christian A. Sandstedt
  • Patent number: 9950482
    Abstract: A method for adjusting a light adjustable lens in an optical system includes providing a light adjustable lens in an optical system; providing an ultraviolet light source to generate an ultraviolet light; and irradiating the generated ultraviolet light with a light delivery system onto the light adjustable lens with a center wavelength and with a spatial irradiance profile to change a dioptric power of the light adjustable lens by changing a refraction of the light adjustable lens in a refraction-change zone, thereby causing a wavefront sag, defined as half of a product of the change of the dioptric power and the square of a radius of the refraction-change zone, to be within 10% of its maximum over an ultraviolet spectrum.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: April 24, 2018
    Assignee: RxSight, Inc.
    Inventors: Robert H. Grubbs, Christian A. Sandstedt
  • Patent number: 9827088
    Abstract: Methods and devices for altering the power of a lens, such as an intraocular lens, are disclosed. In one method, the lens comprises a single polymer matrix containing crosslinkable pendant groups, wherein the polymer matrix increases in volume when crosslinked. The lens does not contain free monomer. Upon exposure to ultraviolet radiation, crosslinking causes the exposed portion of the lens to increase in volume, causing an increase in the refractive index. In another method, the lens comprises a polymer matrix containing photobleachable chromophores. Upon exposure to ultraviolet radiation, photobleaching causes a decrease in refractive index in the exposed portion without any change in lens thickness. These methods avoid the need to wait for diffusion to occur to change the lens shape and avoid the need for a second exposure to radiation to lock in the changes to the lens.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 28, 2017
    Assignee: BATTELLE MEMORIAL INSTITUTE
    Inventors: Steven M. Risser, Vincent D. McGinniss
  • Patent number: 9820850
    Abstract: The present invention relates to novel methods and materials particularly useful for ophthalmic applications and to methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and implanting IOLs made therefrom.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 21, 2017
    Assignee: KEY MEDICAL TECHNOLOGIES, INC.
    Inventor: Khalid Mentak
  • Patent number: 8500274
    Abstract: An improved dual-filter lens for protective eyewear that combines a first filter for blocking essentially 100% of UV light, and second filter for filtering blue light. The first filter may comprise a multi-layered dielectric mirror layer 14 or Rugate filter 50, and the second filter may comprise dye-impregnated lens layer(s) 16, 18 or Rugate filter 50. The first filter blocks essentially 100% of UV light, while the second filter establishes an increasing transmission profile that cuts on sharply at approximately 415 nm, and establishes an increasing transmission profile between approximately 415 nm to about 475 nm. The cut-on slope rises approximately 0.15% in transmissivity for every nanometer of increasing wavelength change, with a maximum filtering effect within the 440-465 nm range. These dual filters provide a balanced light transmission profile that reduces harmful light transmission and prevents macular degeneration, cataracts and other ocular injuries, while still preserving visual acuity.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: August 6, 2013
    Assignee: High Performance Optics, Inc.
    Inventor: Andrew Ishak
  • Publication number: 20130103144
    Abstract: A lens for placement in a human eye, such as an intraocular lens, has at least some of its optical properties modified with a laser. The lens preferably contains at least 5% by weight UV absorber so commercially feasible rates of manufacture can be achieved. The laser forms modified loci in the lens where the modified loci have a different refractive index than the refractive index of the material before modification. The same laser modification technique can be used on the cornea in situ.
    Type: Application
    Filed: September 8, 2010
    Publication date: April 25, 2013
    Applicant: AAREN SCIENTIFIC INC.
    Inventors: Josef F. Bille, Stephen Q. Zhou
  • Patent number: 8388681
    Abstract: Intraocular lenses are provided having a visible-light selective transmissive zone defined therein. The visible light-selective transmissive zone can be located near the lens center and designed to reduce the transmission of any wave-length of visible light specifically light in the blue light region having wavelength between approximately 400? to 550?. In one embodiment he IOLs are made from acrylates and the light absorbing compound is a yellow dye.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 5, 2013
    Assignee: Abbott Medical Optics Inc.
    Inventors: Marlene L Paul, Michael D Lowery, Stephen W Laguette, Mark H Bandhauer
  • Patent number: 8361146
    Abstract: The present invention provides copolymers made up of alkoxyalkyl methacrylate and/or alkoxyalkyl acrylate monomers in combination with one or more additional hydrophobic monomers. The copolymers may be used in the manufacture of intraocular lenses, including both the optic and haptic portions of the lenses. The present invention also provide methods for making intraocular lenses from the copolymers.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: January 29, 2013
    Assignee: Benz Research and Development Corporation
    Inventors: Patrick H. Benz, Jose A. Ors
  • Patent number: 8292428
    Abstract: Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately and 400 nm and 450 nm such that a curve when plotted as percent transmission versus wavelength has the shape as depicted in FIG. 2. In one embodiment the ophthalmic devices are made from acrylates and the light absorbing compound is an Eastman Yellow 035 MA dye.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 23, 2012
    Assignee: Abbott Medical Optics Inc.
    Inventors: Martin A Mainster, Alan J Lang, Michael D Lowery, Jason C Pearson, Max A Weaver, Jean C Fleischer, Gregory A King
  • Patent number: 8236053
    Abstract: Ophthalmic device materials comprising 2-amino benzophenone UV-absorbing compounds are disclosed. The ophthalmic device materials are particularly useful in intraocular lenses.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: August 7, 2012
    Assignee: Novartis AG
    Inventor: Charles Freeman
  • Patent number: 8133274
    Abstract: Intraocular lenses containing a photochromic agent, are disclosed. Specifically, the foldable intraocular lens of the present invention comprises an optic body made from a crosslinked material comprising at least one monomer, a crosslinker, a UV absorber, and a photochromic agent which has a maximum absorption peak of about 400-500 nm in its excited state. The lens has a glass transition temperature of about 37° C. or lower. Methods for making these intraocular lenses are also taught.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: March 13, 2012
    Assignee: Medennium, Inc.
    Inventors: Stephen Q. Zhou, Christopher D. Wilcox, Christine J. Liau
  • Publication number: 20110264209
    Abstract: The invention relates to an ophthalmologic implant, in particular an intraocular lens, comprising at least one marker (16) produced with at least one dye which is a fluorescent dye having a maximum emission outside of the light spectrum visible to humans or an absorbing dye having a maximum absorption outside the light spectrum visible to humans, said fluorescent or absorbing dye not substantially influencing light transmission of the ophthalmologic implant (10) within the visual spectral range. The invention further relates to a microscopy system and an optical detection process for detecting and/or identifying the disclosed ophthalmologic implant (10).
    Type: Application
    Filed: March 24, 2009
    Publication date: October 27, 2011
    Inventors: Martin Wiechmann, Mario Gerlach
  • Patent number: 8043371
    Abstract: Intraocular lenses are provided having a visible-light selective transmissive zone defined therein. The visible light-selective transmissive zone can be located near the lens center and designed to reduce the transmission of any wave-length of visible light specifically light in the blue light region having wavelength between approximately 400? to 550?. In one embodiment he IOLs are made from acrylates and the light absorbing compound is a yellow dye.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: October 25, 2011
    Assignee: Abbott Medical Optics Inc.
    Inventors: Marlene L. Paul, Michael D. Lowery, Stephen W. Laguette, Mark H. Bandhauer
  • Patent number: 8026326
    Abstract: A composition comprising a polymer backbone and at least one side group, wherein the side group comprises a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring. The chromophore is a kynurenine-based compound. Methods of making and using the composition are also provided. The composition can be used in an ophthalmic lens or device for protecting the retina by blocking UV rays and filtering violet rays.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: September 27, 2011
    Assignee: Benz Research and Development Corp.
    Inventors: Patrick H. Benz, Jose A. Ors
  • Patent number: 7928171
    Abstract: A polymer material useful for manufacturing an intraocular lens (IOL) suitable for insertion through an IOL inserter barrel having an inner diameter of less than 3 mm is provided. Specifically, acrylic-silicone hybrids having a tensile strength of approximately 100 psi to 400 psi and a percent elongation at break of between 50% and 400% are disclosed.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: April 19, 2011
    Assignee: Abbott Medical Optics Inc.
    Inventors: Harish C. Makker, Michael D. Lowery, Can B. Hu
  • Patent number: 7888403
    Abstract: Disclosed are soft, high refractive index, acrylic device materials. The materials comprise di-block or tri-block macromers containing hydrophilic side-chains. The materials have improved glistening resistance.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: February 15, 2011
    Assignee: Alcon, Inc.
    Inventor: Douglas C. Schlueter
  • Patent number: 7842367
    Abstract: Opthalmic devices, particularity intraocular lenses (IOL), with improved contrast sensitivity and methods of making same. In one aspect, blue light blocking chromophores (BLBC) are diffused into, e.g. an IOL lens body to create a BLBC gradient in the lens. Orange dyes are preferred BLBCs.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 30, 2010
    Assignee: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Patent number: 7799845
    Abstract: Disclosed are soft, high refractive index, acrylic device materials. The materials comprise di-block or tri-block macromers containing a hydrophilic block in the polymer backbone. The materials have improved glistening resistance.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: September 21, 2010
    Assignee: Alcon, Inc.
    Inventor: Douglas C. Schlueter
  • Patent number: 7763682
    Abstract: Intraocular lenses comprised of an acrylic-silicone hybrid polymer are disclosed. The intraocular lenses described herein are suitable for insertion through incisions of 2 mm or less.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: July 27, 2010
    Assignee: Abbott Medical Optics Inc.
    Inventors: Michael D. Lowery, Harish C. Makker
  • Patent number: 7714090
    Abstract: A (meth)acrylate copolymer obtained by copolymerization of a monomer mixture containing a monomer (A) of the general formula (I), wherein R1 is a hydrogen atom or methyl, R2 is a linear or branched alkylene group having 1 to 8 carbon atoms and Y is a single bond or an oxygen atom, a monomer (B) copolymerizable with the monomer (A) and a crosslinking monomer (C).
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: May 11, 2010
    Assignee: Hoya Corporation
    Inventors: Hidetoshi Iwamoto, Yoko Katsuki
  • Patent number: 7652076
    Abstract: Disclosed are soft, high refractive index device materials having improved strength. The materials contain a monofunctional or difunctional, acrylate or methacrylate terminated aromatic functional methacrylic or acrylic macromer.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: January 26, 2010
    Assignee: Alcon, Inc.
    Inventors: Douglas C. Schlueter, Mutlu Karakelle
  • Publication number: 20090248150
    Abstract: The present invention is directed ophthalmic device materials and, more particularly to an intraocular lens (IOL) formed of a hydrogel material. The hydrogel material includes an acrylate polymer and a radiation resistant compound. The material typically has a relatively high refractive index and/or exhibits a desired degree of radiation protection.
    Type: Application
    Filed: March 12, 2009
    Publication date: October 1, 2009
    Inventor: Chance Lehman
  • Publication number: 20080221675
    Abstract: Disclosed are UV absorbers that contain a labile functional group capable of initiating free radical polymerization.
    Type: Application
    Filed: May 22, 2008
    Publication date: September 11, 2008
    Applicant: ALCON, INC.
    Inventor: Douglas C. Schlueter
  • Patent number: 7407992
    Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 5, 2008
    Assignee: STAAR Surgical Company
    Inventor: Xiugao Liao
  • Publication number: 20080027537
    Abstract: Embodiments of the invention involve intraocular lenses that are light adjustable to change a focal length of the lens after it has been implanted into a person or animal. The lens includes a layer of UV absorbent material located on a rear side, which is the side facing a retina. The lens may comprise a UV reducing rim that surrounds a peripheral portion of the lens, and reduces or blocks UV light from striking the retina.
    Type: Application
    Filed: July 26, 2006
    Publication date: January 31, 2008
    Applicant: Calhoun Vision, Inc.
    Inventors: Mario Gerlach, Christian A. Sandstedt, Shiao H. Chang
  • Patent number: 7071244
    Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 4, 2006
    Assignee: STAAR Surgical Company
    Inventor: Xiugao Liao
  • Patent number: 6918931
    Abstract: Yellow dye moiety-containing prepolymers with blue light absorbing priorities and methods for producing the same for use in the production of relatively high refractive index polymeric compositions are described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: July 19, 2005
    Assignee: Bausch & Lomb Incorporated
    Inventors: Yu-Chin Lai, Dominic V. Ruscio
  • Patent number: 6851804
    Abstract: The invention relates to optical elements whose optical properties can be repeatedly adjusted over time. Through the use of modifying compositions capable of stimulus induced polymerization coupled with a blend of stimulus absorbers and initiators, it is possible to repeatedly adjust the optical properties of the element by exposing the lens to a stimulus which exceeds the absorption capacity of the stimulus absorber.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 8, 2005
    Inventors: Jagdish M. Jethmalani, Shiao H. Chang
  • Publication number: 20030220688
    Abstract: An IOL described herein includes an optic and at least a first haptic and a second haptic connected to the optic and extending outwardly therefrom; each haptic is formed with either a frog leg configuration or a running leg configuration, which include a base adjacent the optic, a distal foot portion and an intermediate portion connected between the base and the distal foot, the base being connected to the intermediate portion through a first flexible elbow having an angle in a first circumferential direction relative to the to optic and the intermediate portion being connected to the distal foot portion by a second flexible elbow having an angle in a circumferential direction opposite to the first circumferential direction.
    Type: Application
    Filed: February 28, 2003
    Publication date: November 27, 2003
    Inventors: Ran Sun, Xiu Fang Liu
  • Publication number: 20030212455
    Abstract: A novel technique is provided, designated DamID, for the identification of DNA loci that interact in vivo with specific nuclear proteins in eukaryotes. By tethering a DNA modification enzyme, in particular, E. coli DNA adenine methyl transferase (Dam), to a chromatin protein. The DNA modification enzyme (Dam) can be targeted in vivo to the native binding loci of the protein, resulting in local DNA modification. Sites of DNA modification can subsequently be mapped using modification-specific restriction enzymes, antibodies, or DNA array methods. DNA Modification Identification (DamID) has potential for genome-wide mapping of in vivo target binding sites of chromatin proteins in various eukaryotes.
    Type: Application
    Filed: March 11, 2003
    Publication date: November 13, 2003
    Inventors: Bas Van Steensel, Steven Henikoff
  • Publication number: 20030193643
    Abstract: An article of externally-worn eye wear, including, but not limited to, eyeglasses, sunglasses, goggles, and contact lenses. The eye wear includes a wavelength transmission blocker for blocking substantially all of light wavelengths throughout the blue light spectrum. The wavelength transmission blocker protects the eyes against the harmful effect of the blocked light. Also, since the eye wear is worn externally from the eye, and the user can remove the eye wear, the user can selectively block the light. As such, the eye wear can be worn to block potentially harmful light, or the eye wear can be removed if blocking the light would cause other hazards.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 16, 2003
    Inventor: Steven G. Pratt
  • Publication number: 20030033011
    Abstract: An intraocular lens (IOL) corrects vision disorders and prevents the formation of cataracts. The IOL can be inserted in the anterior or posterior chamber of the eye, or can be iris-fixated. The IOL can correct for myopia, hyperopia, presbyopia and/or astigmatism. Additionally, the IOL contains an ultraviolet radiation (UVR) blocker, that absorbs UVR in the 300-400 nm range. The absorption of the UVR allows the IOL to reduce or eliminate cataract formation.
    Type: Application
    Filed: August 8, 2001
    Publication date: February 13, 2003
    Inventors: Jack A. Singer, Joe Kiernan
  • Publication number: 20020042653
    Abstract: A surgically implantable synthetic intraocular lens having a wavelength blocker for blocking transmission of 100% or at least a portion of blue light of wavelengths between about 400 and 510 nanometers, as well as for blocking ultraviolet A and B wavelengths and optionally infrared wavelength transmissions. A preferred wavelength transmission blocker is a tint composition either disposed exteriorly upon the lens or blended interiorly within the lens. Lens utility is found in replacement of the natural crystalline lens to achieve visual correction of aphakia, as well as in correcting refractive errors of the eye through implantation without removal of the natural crystalline lens to thereby provide filtering properties that yield maximum visual acuity along with blockage of untoward wavelength transmissions. The lens implants thereby support vision health by protecting eyes from damage caused through the transmission of untoward wavelengths to the interior of the eye.
    Type: Application
    Filed: December 11, 2001
    Publication date: April 11, 2002
    Inventors: Victor L. Copeland, Steven G. Pratt
  • Publication number: 20010025198
    Abstract: A contact lens with enhanced UV blocking to meet ANSI Class 1 specifications includes enhanced effective amounts of two different UV absorbing compounds. One UV absorber is a benzotriazole derivative, and the other UV absorber is a benzophenone derivative.
    Type: Application
    Filed: April 20, 2001
    Publication date: September 27, 2001
    Applicant: Wesley-Jessen Corporation
    Inventor: Hermann Faubl
  • Patent number: 6244707
    Abstract: Contact lenses, intraocular lenses and transparent plastic with enhanced UV blocking to meet ANSI Class 1 specifications include enhanced effective amounts of two different UV absorbing compounds. One UV absorber is a benzotriazole derivative, and the other UV absorber is a benzophenone derivative. The lenses are made from a polymer that incorporates both of these UV absorbers.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: June 12, 2001
    Assignee: Wesley Jessen Corporation
    Inventor: Hermann Faubl
  • Patent number: 6201036
    Abstract: A light-curable polymer material for making an intraocular lens is a mixture of components consisting of oligourethanemethacrylate, octylmethacrylate, oligocarbonatemetharcrylate, 2,2-dimethoxy-2-phenylacetophenone and 2,4-ditretbutylortoquinone, wherein the aforesaid components are taken in the following weight % ratio: 2,2-dimethoxy-2-phenylacetophenone 0.1-0.7 2,4-ditretbutylortoquinone 0.001-0.006 octylmethacrylate  8-42 oligocarbonatemethacrylate 2-8 oligourethanemethacrylate balance. Also proposed are a method for making an elastic intraocular lens in which the aforesaid compounds are used as the initial components, and an elastic intraocular lens produced by this method.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: March 13, 2001
    Assignee: Mezhoiraslevoi Nauchno-Tekhnichesky Komplex “Mikrokhirurgia Glaza”
    Inventors: Svyatoslav Nikolaevich Fedorov, Leonid Feodosievich Linnik, Valery Mikhailovich Treushnikov, Elena Alexandrovna Viktorova, Alexandr Alexandrovich Karavaev
  • Patent number: 6187042
    Abstract: Intraocular lens coating compositions for reducing the risk of posterior capsule opacification are disclosed. The coating materials, which differ from the substrate material, consist essentially of at least two aryl acrylic hydrophobic monomers of the formula wherein: X is H or CH3; m is 0-10; Y is nothing, O, S, or NR wherein R is H, CH3, CnH2n+1 (n=1−10) iso OC3H7, C6H5, or CH2C6H5; Ar is any aromatic ring which can be unsubstituted or substituted with CH3, C2H5, n-C3H7, iso-C3H7, OCH3, C6H11, Cl, Br, C6H5, or CH2C6H5.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: February 13, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventors: John W. Sheets, Jr., Albert R. Leboeuf, Anilbhai S. Patel, Mutlu Karakelle, Stephen J. Van Noy