WO2014148922A3 - An improved contact lens and improved method of fabrication of contact lenses - Google Patents

An improved contact lens and improved method of fabrication of contact lenses Download PDF

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Publication number
WO2014148922A3
WO2014148922A3 PCT/NZ2014/000046 NZ2014000046W WO2014148922A3 WO 2014148922 A3 WO2014148922 A3 WO 2014148922A3 NZ 2014000046 W NZ2014000046 W NZ 2014000046W WO 2014148922 A3 WO2014148922 A3 WO 2014148922A3
Authority
WO
WIPO (PCT)
Prior art keywords
lens
data
contact
posterior
improved
Prior art date
Application number
PCT/NZ2014/000046
Other languages
French (fr)
Other versions
WO2014148922A2 (en
Inventor
Peter Turner
Original Assignee
Eyecan Holdings Limited
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 Eyecan Holdings Limited filed Critical Eyecan Holdings Limited
Publication of WO2014148922A2 publication Critical patent/WO2014148922A2/en
Publication of WO2014148922A3 publication Critical patent/WO2014148922A3/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/02Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04Contact lenses for the eyes
    • G02C7/047Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae

Abstract

A method of generating data for use in fabricating a contact lens for an eye is provided. Posterior lens data defining a posterior lens surface for the lens is generated dependent on ocular surface data generated by a scanner to represent the ocular surface of an eye. Anterior lens data defining an anterior surface for the lens to define optical properties for the lens is then generated. The anterior lens data is generated dependent on the posterior surface data. The posterior lens data is generated dependent on scanned data representing the ocular surface of an eye. Also provided is a contact lens with support surfaces which contact the eye in use and supported surfaces formed in relief in the posterior lens surface and which are supported by the support surfaces to minimise or avoid contact between the lens and features on the ocular surface.
PCT/NZ2014/000046 2013-03-19 2014-03-19 An improved contact lens and improved method of fabrication of contact lenses WO2014148922A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ608439 2013-03-19
NZ60843913 2013-03-19

Publications (2)

Publication Number Publication Date
WO2014148922A2 WO2014148922A2 (en) 2014-09-25
WO2014148922A3 true WO2014148922A3 (en) 2015-03-19

Family

ID=51581578

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2014/000046 WO2014148922A2 (en) 2013-03-19 2014-03-19 An improved contact lens and improved method of fabrication of contact lenses

Country Status (1)

Country Link
WO (1) WO2014148922A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017070288A1 (en) * 2015-10-21 2017-04-27 The Regents Of The University Of Colorado, A Body Corporate Intraocular devices and methods for correction of aphakia, restoration of accommodation, and treatment of glaucoma
AU2018293922B2 (en) * 2017-06-28 2023-05-04 Capricornia Contact Lens Pty Ltd Improvements to fitting orthokeratology lenses
US20230181376A1 (en) * 2021-12-10 2023-06-15 Ocular Surface Innovations Inc. Ophthalmic shield and therapeutic method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501190A (en) * 1947-12-03 1950-03-21 Policoff William Eye molding apparatus for contact lenses
US6241355B1 (en) * 1996-03-29 2001-06-05 Brian A. Barsky Computer aided contact lens design and fabrication using spline surfaces
US6340229B1 (en) * 1998-09-08 2002-01-22 Scientific Optics, Inc. Soft contact lens
US20040075807A1 (en) * 2000-11-10 2004-04-22 Ocular Sciences, Inc. Junctionless ophthalmic lenses and methods for making same
US20070195311A1 (en) * 2006-02-22 2007-08-23 Morgan Courtney F Device and method for non-contact scanning of contact lens and contact lens mold geometry

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501190A (en) * 1947-12-03 1950-03-21 Policoff William Eye molding apparatus for contact lenses
US6241355B1 (en) * 1996-03-29 2001-06-05 Brian A. Barsky Computer aided contact lens design and fabrication using spline surfaces
US6340229B1 (en) * 1998-09-08 2002-01-22 Scientific Optics, Inc. Soft contact lens
US20040075807A1 (en) * 2000-11-10 2004-04-22 Ocular Sciences, Inc. Junctionless ophthalmic lenses and methods for making same
US20070195311A1 (en) * 2006-02-22 2007-08-23 Morgan Courtney F Device and method for non-contact scanning of contact lens and contact lens mold geometry

Also Published As

Publication number Publication date
WO2014148922A2 (en) 2014-09-25

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