Manufacturing process of an accommodating soft contact lens
First Claim
1. A method of manufacturing an accommodating contact lens, the method comprising:
- providing an accommodating contact lens module; and
encapsulating the accommodating contact lens module in a soft contact lens material,wherein an optically transmissive coupling fluid has been placed in the accommodating contact lens module prior to encapsulating the module,wherein the mold comprises a shape to form an optical correction zone for a subject on corresponding anterior and posterior surfaces of the accommodating contact lens, andwherein the accommodating contact lens module and the optically transmissive fluid placed therein comprise an index of refraction similar to an index of refraction of the soft contact lens material in order to transmit light refracted by the anterior and posterior surfaces of the optical correction zone through at least a portion of the module and inhibit optical artifacts,wherein the accommodating contact lens module comprises an optical chamber, a support structure, one or more eyelid engaging chambers, and one or more extensions comprising a fluidic channel extending between the optical chamber and the one or more eyelid engaging chambers, andwherein the optical chamber comprises an anterior membrane having an anterior thickness and a posterior membrane having a posterior thickness, the posterior thickness greater than the anterior thickness,wherein the accommodating contact lens module contains an amount of fluid within a range from 0.15 to 2.5 microliters and the central optical chamber provides 2 Diopters of add power with an amount of fluid within a range from 0.07 to 0.30 microliters in response to eyelid pressure to the one or more eyelid engaging chambers.
1 Assignment
0 Petitions
Accused Products
Abstract
An accommodating contact lens module is provided for use with an accommodating contact lens. Components of the accommodating contact lens module can be manufactured and assembled with low distortion optics to provide improved vision. The module comprises a self-supporting module capable of being grasped by one of the components and placed in a mold without distorting the optical components of the module when placed. The module is compatible with soft contact lens materials, and compatible with soft contact lens manufacturing processes such as molding of hydrogels and silicones. The module may comprise one or more of many components that can be placed in the mold together. These components can be placed in the mold for encapsulation in order to provide accurate optical correction of the eye of the subject, for both far vision and near vision. In many embodiments, the module is inspected prior to placement in the mold.
33 Citations
13 Claims
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1. A method of manufacturing an accommodating contact lens, the method comprising:
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providing an accommodating contact lens module; and encapsulating the accommodating contact lens module in a soft contact lens material, wherein an optically transmissive coupling fluid has been placed in the accommodating contact lens module prior to encapsulating the module, wherein the mold comprises a shape to form an optical correction zone for a subject on corresponding anterior and posterior surfaces of the accommodating contact lens, and wherein the accommodating contact lens module and the optically transmissive fluid placed therein comprise an index of refraction similar to an index of refraction of the soft contact lens material in order to transmit light refracted by the anterior and posterior surfaces of the optical correction zone through at least a portion of the module and inhibit optical artifacts, wherein the accommodating contact lens module comprises an optical chamber, a support structure, one or more eyelid engaging chambers, and one or more extensions comprising a fluidic channel extending between the optical chamber and the one or more eyelid engaging chambers, and wherein the optical chamber comprises an anterior membrane having an anterior thickness and a posterior membrane having a posterior thickness, the posterior thickness greater than the anterior thickness, wherein the accommodating contact lens module contains an amount of fluid within a range from 0.15 to 2.5 microliters and the central optical chamber provides 2 Diopters of add power with an amount of fluid within a range from 0.07 to 0.30 microliters in response to eyelid pressure to the one or more eyelid engaging chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus to manufacture an accommodating contact lens, the apparatus comprising:
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an accommodation module comprising a free standing module configured to be encapsulated in a soft contact lens material and having an optically transmissive coupling fluid placed therein prior to being encapsulated; and a mold, wherein the accommodation module is configured to be placed in the mold, the mold comprising a shape to form an optical correction zone for a subject on corresponding anterior and posterior surfaces of the accommodating contact lens, wherein the accommodation module and the optically transmissive fluid placed in the accommodation module comprises an index of refraction similar to an index of refraction of the soft contact lens material in order to transmit light refracted by the anterior and posterior surfaces of the optical correction zone through at least a portion of the module and inhibit optical artifacts, wherein the accommodation module comprises an optical chamber, a support structure, one or more eyelid engaging chambers, one or more extensions comprising a fluidic channel extending between the optical chamber and the one or more eyelid engaging chambers, wherein the accommodation module contains an amount of fluid within a range from 0.15 to 2.5 microliters and the central optical chamber provides 2 Diopters of add power with an amount of fluid within a range from 0.07 to 0.30 microliters in response to eyelid pressure to the one or more eyelid engaging chambers, and wherein the optical chamber comprises an anterior membrane having an anterior thickness and a posterior membrane having a posterior thickness, the posterior thickness greater than the anterior thickness.
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Specification