Soft contact lens with reduced volume variation
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsPierre-Yves Gerligand, Philippe F. Jubin
Life of this patent
Estimating the term…
Abstract
Ophthalmic lenses are described herein. An example ophthalmic lens may comprise a first surface. The example ophthalmic lens may comprise a second surface disposed opposite the first surface and defining a volume of lens material therebetween. The ophthalmic lens may exhibit a first cylinder power. A difference of the volume of lens material of the ophthalmic lens and a volume of lens material of a comparative lens may be minimized. The comparative lens may consist essentially of the same lens material as the ophthalmic lens and exhibit a second cylinder power different from the first cylinder power.
Claims10
An ophthalmic lens comprising:
- a first surface;
- and
- a second surface disposed opposite the first surface and defining a volume of lens material therebetween,
- wherein the ophthalmic lens exhibits a first cylinder power, and wherein a difference of the volume of lens material of the ophthalmic lens and a volume of lens material of a comparative lens is minimized, wherein the comparative lens comprises a comparative first surface and a comparative second surface opposite the comparative first surface that define a volume of comparative lens material therebetween consisting essentially of the same lens material as the ophthalmic lens, wherein the comparative lens exhibits a second cylinder power different from the first cylinder power, and wherein a geometry of one or more of the first surface and the second surface is configured based on at least the difference between the second cylinder power and the first cylinder power to minimize the difference between the volume of lens material of the ophthalmic lens and the volume of lens material of the comparative lens due to the difference between the second cylinder power and the first cylinder power.
Dependencies are inferred from the claim text.