Variable focus electroactive ophthalmic device

摘要

A variable focus ophthalmic device is described. The device comprises a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface and a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface. A cavity is formed by the front curve bottom optical surface of the front curve optical portion of the variable focus ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device. A first fluid with a first index of refraction and a second fluid with a second index of refraction is provided, wherein the first index of refraction and the second index of refraction are different and the two fluids are immiscible. A dielectric film in contact with at least a portion of one or more of the first or second fluids and overlying an electrode capable of establishing an electric field is provided. One or more reservoir regions for containment of a volume of fluid equal or approximately equal to the volume of the first fluid and wherein the reservoir is in fluid connection with said formed cavity.

主权项

1. A variable focus ophthalmic device comprising:
a front curve optical portion comprising a front curve top optical surface and a front curve bottom optical surface; a back curve optical portion comprising a back curve top optical surface and a back curve bottom optical surface; a cavity formed by the front curve bottom optical surface of the front curve optical portion and the back curve top optical surface of the back curve optical portion; a first liquid with a first index of refraction and a second liquid with a second index of refraction, wherein the first index of refraction is different than the second index of refraction and the first liquid and the second liquid are immiscible; one or more electrodes configured to establish an electric field; a dielectric film in contact with at least a portion of one or more of the first liquid and the second liquid and overlying at least one of the electrodes; at least one reservoir for containing a volume of the first liquid or the second liquid in fluid connection with said cavity; and one or more channels between the reservoir and the cavity; wherein the cavity and reservoir are configured such that when the first liquid occupies the cavity, the second liquid is excluded from the cavity.