Patent ID: 8767308

Claim:
An optical lens comprising: a front curve lens comprising a front curve lens exterior surface and a front curve lens interior surface, wherein both said front curve lens exterior surface and said front curve lens interior surface comprise an arcuate shape; a back curve lens comprising a back curve lens interior surface and a back curve lens exterior surface, wherein both said back curve lens interior surface and the back curve lens exterior surface comprise an arcuate shape, said back curve lens positioned proximate to said front curve lens such that said front curve lens interior surface and said back curve lens interior surface form a cavity therebetween and an optical axis through said front curve lens and said back curve lens and an optical quality through the optical axis; a volume of saline solution and oil contained within the cavity formed between said front curve lens interior surface and said back curve lens interior surface, said volume of saline solution and oil comprising a meniscus therebetween, wherein the volume of oil comprises about 66% or greater than the volume of saline solution; a meniscus wall comprising a general shape of a conical frustum formed in one or both of the front curve lens and back curve lens and bordering the meniscus formed between the saline solution and oil and at least a portion of the conical frustum concave in relation to the optical axis; a conductive coating on at least a portion of said meniscus wall wherein application of an electrical current across the conductive coating causes movement of the meniscus resulting in a negative add power in the optical quality through the optical axis.