Aspheric Zone Patents (Class 351/159.13)
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Patent number: 9039172Abstract: A method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus.Type: GrantFiled: January 29, 2014Date of Patent: May 26, 2015Assignee: NOVARTIS AGInventors: Joseph Michael Lindacher, Shyamant Ramana Sastry
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Publication number: 20140347622Abstract: A lens for correcting vision of a user includes a central zone and an outer zone. The central zone is configured to cause light passing therethrough to form an image on a retina of an eye of the user. The outer zone surrounds the central zone and has a plurality of different aspherical coefficients for respectively causing light passing therethrough to form images spaced apart from the retina.Type: ApplicationFiled: May 23, 2014Publication date: November 27, 2014Applicant: HILINE OPTICAL CO., LTD.Inventor: Richard WU
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Patent number: 8783863Abstract: This invention provides a contact lens for myopia control comprising: an object-side surface comprising a central zone, a transition zone and a peripheral zone which are concentric and have different refractive power, at least one of the three zones being aspheric; and an image-side surface; wherein the central zone provides correction power to focus a foveal image on the retina, the peripheral zone provides a myopic defocus effect by generating a para-fovea image in front of the retina, and the transition zone with one or more focuses provides a refractive power in diopter (D) ranging from +0.25 D to +8.00 D.Type: GrantFiled: September 5, 2012Date of Patent: July 22, 2014Assignee: Largan Medical Co., Ltd.Inventor: Chung Lin Wang
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Patent number: 8672474Abstract: A method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus.Type: GrantFiled: June 16, 2011Date of Patent: March 18, 2014Assignee: Novartis AGInventors: Joseph Michael Lindacher, Shyamant Ramana Sastry
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Publication number: 20130222761Abstract: A toric contact lens utilizes concentric annual rings, a continually varying lens design as a function of distance from the lens center or any other function to create a range of cylinder axis zones on a single lens.Type: ApplicationFiled: February 28, 2012Publication date: August 29, 2013Inventors: Jonathan Hansen, James Michalski, C.Benjamin Wooley
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Publication number: 20120113386Abstract: Contact lenses provide clear visual acuity and simultaneously present a myopic defocused image to the lens wearer at both near viewing distances and distant viewing distances. The present contact lenses have an optic zone that has a radius of less than or equal to 2.5 mm. Stated differently, the diameter of the optic zone of the present contact lenses is 5.0 mm or less. The present lenses are used in methods to reduce progression of myopia in a person capable of ocular accommodation. Methods of manufacturing the present lenses are described.Type: ApplicationFiled: May 3, 2010Publication date: May 10, 2012Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventor: Arthur Back