Bifocal contact lens

Details Bifocal contact lens Bifocal contact lens

G - Physics

02

B

88/40

G02B 3/10 (2006.01) G02C 7/04 (2006.01)

Patent

CA 1251667

BIFOCAL CONTACT LENS ABSTRACT OF THE DISCLOSURE A ballasted multifocal contact lens has a vent for releasing constrictive pressure provided in its lower and ballasted portion. The vent has a surface which tapers from the anterior surface toward the posterior surface to allow the lens to be positioned below the inferior lid. A stabilizing portion is formed on the lens adjacent each side of the vent. The stabilizing portions engage the inferior lid and adjust the lens should it be rotated off axis.

459429

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