WO2007103137A2 - Lentilles de contact souples colorées - Google Patents

Lentilles de contact souples colorées Download PDF

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Publication number
WO2007103137A2
WO2007103137A2 PCT/US2007/005293 US2007005293W WO2007103137A2 WO 2007103137 A2 WO2007103137 A2 WO 2007103137A2 US 2007005293 W US2007005293 W US 2007005293W WO 2007103137 A2 WO2007103137 A2 WO 2007103137A2
Authority
WO
WIPO (PCT)
Prior art keywords
dye
impregnated
kit
contact lens
lens
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
PCT/US2007/005293
Other languages
English (en)
Other versions
WO2007103137A3 (fr
Inventor
Michael D. Conte
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2007103137A2 publication Critical patent/WO2007103137A2/fr
Publication of WO2007103137A3 publication Critical patent/WO2007103137A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00317—Production of lenses with markings or patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00903—Applying coatings; tinting; colouring colouring or tinting on the surface
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0004—General aspects of dyeing
    • D06P1/0012—Effecting dyeing to obtain luminescent or phosphorescent dyeings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0004—General aspects of dyeing
    • D06P1/0016—Dye baths containing a dyeing agent in a special form such as for instance in melted or solid form, as a floating film or gel, spray or aerosol, or atomised dyes

Definitions

  • This invention pertains to colored, or dyed, hydrogel or silicon hydrogel substrate, and more particularly to a method and kit for dyeing soft contact lenses.
  • the simplest colored lenses are enhancing lenses, which look like a regular contact lens with an iris-sized circle of transparent color. These lenses aren't meant to hide the iris's natural color, but rather to augment it. Manufacturers create the color by covalently attaching organic azo dyes to the contact lens polymer.
  • the use of opaque pigments is more difficult, as it has a tendency to look fake. Colored contact makers have gotten better at making dramatic yet realistic-looking changes to the appearance of the iris through the use of sophisticated designs of opaque inorganic pigments. Nano- and microscale particles of inorganic pigments such as titanium dioxide, iron oxide, and barium sulfate are typically used to achieve the opaque color in these lenses.
  • inks are printed directly onto the lens and then covalently fixed onto the polymer surface.
  • Other colored contact lenses are made by putting the inks into a mold and polymerizing the lens around these pigments, encapsulating the color within the contact.
  • Others are made by stacking layers of dielectric films of alternating low and high refractive index. This, in combination with the films' precise nanoscale thickness, allows scientists to tailor the lens's reflective properties and therefore its color.
  • the thin films are applied to the lens using plasma-enhanced chemical vapor deposition or ion-assisted deposition. The process creates a smooth surface on the lens that's imperceptible to the wearer. AU of these processes are complicated and require precise application of pigments or films through the use of highly sensitive and technical machinery.
  • U.S. Patent No.4,840,477 pertains to colored contact lenses having a dyed iris area and a light reflecting material on the concave surface of the lens.
  • the reactive dyes are attached to the lens through the formation of a covalent bond between the lens material and the dye that is created after the lens is contacted with the dye for a sufficient amount of time. These dyes permanently stain the matrix of the contact lens.
  • U.S. Patent No. 5,302,978 pertains to colored contact lenses in which the color is applied by direct application of one or more vat dyes, by printing the color onto the surface of the lens, or by incorporating a pigment onto the contact lens surface. These contact lenses are also permanently colored.
  • the present invention relates generally to the field of a hydrogel or silicon hydrogel substrate. More particularly, it concerns a method for applying dyes to the surface of a soft contact lens, as well as a kit containing the components for application of a dye to a soft contact lens.
  • the current invention pertains to a method for coloring a substrate, such as contact lenses, preferably soft contact lenses.
  • the method can be carried out by a contact lens owner after purchase from a manufacturer.
  • the contact lenses are placed in a preserved saline solution.
  • a strip that has been impregnated with a dye is added to the saline solution in which the lens is being stored.
  • the lens can be inserted into the eye as it would normally be worm by the user.
  • Exposure of the dyed lenses to ultraviolet light causes the lenses to glow.
  • These particular dyes cause the contact lens to fluoresce under fluorescent light, creating a dramatic effect.
  • the dyes do not permanently change the substrate contact lens.
  • the dye does not print color into any part of the contact lens matrix. This effect of dyeing will fade over time as the dye slowly leaches out of the matrix of the lens.
  • a kit containing all of the components to produce such dyed contact lenses is also described.
  • the present invention relates to methods and kits that utilize dyes to color the surface of hydrogel or silicon hydrogel substrate, such as a soft contact lens.
  • the methods and kits produce contact lenses that will fluoresce or glow under fluorescent lights.
  • Soft contact lenses are also known as hydrogel and silicon hydrogel contact lenses.
  • Soft contact lenses come in four (4) different groups.
  • the first group is low water contact lenses containing less than fifty percent water and non-ionic hydrogel polymers.
  • the second group is high water content lenses that contain over fifty percent water and non-ionic hydrogel polymers.
  • the third group of soft contact lenses is low water contact lenses with less than fifty percent water and ionic hydrogel polymers.
  • the fourth group is high water content lenses with greater than fifty percent water and ionic hydrogel polymers.
  • the current invention pertains to a method for dyeing soft contact lenses.
  • the first step in the method comprises placing a soft contact lens in a container filled with saline solution.
  • a strip that has been impregnated with a dye is added to the saline solution that contains the soft contact lens, to produce a combination solution.
  • the soft contact lens will absorb or adsorb the dye from the combination solution.
  • the soft contact lens is removed from the combination solution, rinsed briefly with saline, and placed in the eye. Exposure to ultraviolet light will cause the soft contact lens to glow, especially in dim illumination or a dark room. This effect will fade over time as the dye slowly leaches out of the matrix of the lens.
  • the dyes do not permanently change the contact lenses.
  • the dyes do not permanently stain the matrix of the contact lens.
  • the preferred dyes for the current invention include sodium fluorescein, lissamine green, rose Bengal, and mixtures thereof.
  • the strips onto which the dyes can be absorbed include small paper strips about 2 mm wide and 15 mm long
  • the dyes can be absorbed or adsorbed by the strips by placing the absorbent paper strips in sodium fluorescein solution.
  • the strips absorb or adsorb from about 1 milligram of dye to about 30 milligrams of dye per strip. If the dye used is rose bengal, the preferred amount of dye is from about 1 milligram to about 20 milligrams.
  • the amount of dye that is preferably absorbed onto the strip may need to be increased depending on the amount of saline solution in the container.
  • the preferable amount of saline is about 10 milliliters but can be varied accordingly.
  • An example of a commercially available sodium fluorescein strip is a FUL-GLO® fluorescein sodium sterile ophthalmic strip (Buffalo Grove, IL).
  • the strip preferably dissolves in the saline solution to produce a combination solution.
  • the amount of time required for the contact lens to absorb the dye will vary, but the preferable minimum amount of time during which the contact lens should be left in the combination solution is about three hours.
  • the dye that is absorbed or adsorbed by the strip may be a mixture of any useable dyes.
  • the current invention also pertains to a kit that may be used to dye soft contact lenses.
  • the kit contains four main components.
  • the first component is a contact lens container.
  • the container can be a 10 mL size contact lens cup holder or any other suitable container.
  • the second component is a bottle of preserved saline solution, available from any commercial source.
  • the third component is a strip that has been impregnated with a dye.
  • the dye is preferably sodium fluorescein, lissamine green, or rose bengal.
  • the strips may vary in size and may contain from about 1 milligram to about 30 milligrams of dye per strip, depending on the size of the contact lens container and the selected dye.
  • a fourth optional component is a UV light emitting system, such as a light bulb that emits ultraviolet light powered by a battery system.
  • the user deposits a contact lens, preferably a soft contact lens, into the contact lens container.
  • the contact lens is one that has been prescribed by a doctor and obtained from a manufacturer of contact lenses.
  • the container is then filled with saline solution from the bottle of preserved saline solution.
  • the preferred amount of saline solution added is about 10 milliliters.
  • a strip that has been impregnated with dye is then added to the saline solution. If the dye is sodium fluorescein, the strip should preferably contain from about 1 milligram to about 30 milligrams of dye per 10 milliliters of saline solution.
  • the strip should preferably contain from about 1 milligram to about 20 milligrams of dye per 10 milliliters of saline solution.
  • the strip preferably dissolves in the saline solution to produce a combination solution containing molecules of dye. These molecules are absorbed by the contact lens over a period of time.
  • the contact lens should be left in the container with the combination solution for about three hours or longer. After the lenses are placed in the eye, the UV light emitting system should be permitted to shine into the eyes to cause the contact lenses to glow.
  • Another embodiment of the present invention pertains to producing a dyed contact lens, or enhancing the glow of a soft contact lens that has already been dyed, while the subject is wearing or using the contact lens.
  • a dye in liquid tears (saline) in about 0.5 ml to about 2 ml single use packages is put directly on the eye with the soft contact lens to either dye the "un-dyed" contact lens of enhance the glowing of the contact lens that has already been dyed.
  • Usable dyes include sodium fluorescein, lissamine green, rose Bengal, and mixtures thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Eyeglasses (AREA)
  • Coloring (AREA)

Abstract

L'invention concerne un procédé et un kit servant à produire des lentilles de contact souples colorées. Les lentilles de contact sont immergées dans une solution saline et une bande qui a été imprégnée d'un colorant est ajoutée à la solution saline. Les colorants préférés comprennent les colorants courants de type fluorescéine sodique, vert de lissamine et rose bengale. Au bout d'un certain temps, la lentille absorbe le colorant et peut être enlevée de la solution et placée sur l'oel. Une fois la lentille irradiée par de la lumière ultraviolette, elle brillera ou fluorescera. Cela crée un effet spectaculaire, en particulier dans des endroits faiblement éclairés. L'invention concerne également un procédé servant à produire une lentille de contact souple colorée ou à accroître l'éclat d'une lentille de contact qui a été préalablement colorée, alors que la lentille est portée sur un oel d'un sujet.
PCT/US2007/005293 2006-03-03 2007-03-01 Lentilles de contact souples colorées Ceased WO2007103137A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77928706P 2006-03-03 2006-03-03
US60/779,287 2006-03-03

Publications (2)

Publication Number Publication Date
WO2007103137A2 true WO2007103137A2 (fr) 2007-09-13
WO2007103137A3 WO2007103137A3 (fr) 2007-11-01

Family

ID=38372441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/005293 Ceased WO2007103137A2 (fr) 2006-03-03 2007-03-01 Lentilles de contact souples colorées

Country Status (2)

Country Link
US (1) US20070204411A1 (fr)
WO (1) WO2007103137A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018071056A1 (fr) * 2016-10-12 2018-04-19 Conte Michael D Compositions et procédés de coloration réversible de lentilles de contact souples et examen médical associé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101308218B (zh) * 2007-05-15 2011-01-05 鸿富锦精密工业（深圳）有限公司 有色镜片的制作方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1544682B2 (de) * 1963-09-11 1973-04-26 Tscheskoslovenska akademie ved , Prag Verfahren zur bildung farbiger und aehnlicher effekte in hydrogelen, vorzugsweise zur herstellung von kontaktlinsen
GB1583492A (en) * 1976-06-24 1981-01-28 Toppan Printing Co Ltd Method of dyeing or printing hydrogel resin
US4891046A (en) * 1984-03-15 1990-01-02 Coopervision, Inc. Tinted contact lens and method for preparation with dichlorotriazine reactive dye
US4840477A (en) * 1986-02-24 1989-06-20 Sunsoft Corp. Dyed color change contact lens
US4777684A (en) * 1986-02-27 1988-10-18 Johnson Carl S Apparatus and method for custom tinting soft contact lenses by dispenser of lenses
US4736872A (en) * 1986-03-18 1988-04-12 National Patent Development Corp. Disposable tint pack assembly for contact lens tinting
US5160463A (en) * 1990-10-30 1992-11-03 Pilkington Visioncare, Inc. Method of manufacturing a contact lens
GB9417399D0 (en) * 1994-08-30 1994-10-19 Scherer Corp R P Ocular treatment device
GB9624451D0 (en) * 1996-11-25 1997-01-15 Hydron Ltd A process
US6420455B1 (en) * 1999-06-18 2002-07-16 3M Innovative Properties Company Antimicrobial composition containing photosensitizers articles, and methods of use
US7018646B2 (en) * 2002-05-30 2006-03-28 Van Dalen Johan T W Apparatus and method for delivering controlled quantities of one or more agents to the eye
JP2004286875A (ja) * 2003-03-19 2004-10-14 Pentax Corp プラスチックレンズの染色方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018071056A1 (fr) * 2016-10-12 2018-04-19 Conte Michael D Compositions et procédés de coloration réversible de lentilles de contact souples et examen médical associé

Also Published As

Publication number Publication date
US20070204411A1 (en) 2007-09-06
WO2007103137A3 (fr) 2007-11-01

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