Adjustable intraocular lens implant with magnetic adjustment facilities

Abstract

An adjustable ocular insert to be implanted during refractive cataract surgery and clear (human) crystalline lens refractive surgery and adjusted post-surgically. The implant comprises relatively soft but compressible and resilient base annulus designed to fit in the lens capsule and keep the lens capsule open. Alternatively the annulus may be placed in the anterior or posterior chamber. The annulus includes a pair of opposed haptics for secure positioning within the appropriate chamber. A rotatable annular lens member having external threads is threadedly engaged in the annulus. The lens member is rotated to move the lens forward or backward so to adjust and fine tune the refractive power and focusing for hyperopia, myopia and astigmatism. The intraocular implant has a power range of approximately +3 0 -3 diopters. The lens member can be removed from the base annulus and lifted out of the eye so that the lens can be changed, adjusted, modified or entirely removed with new assembly placed for the patient's changing visual needs and lifestyle with less stress on the base annulus and on the rotatable lens member. Magnetic elements may be operatively associated with the lens member, and responsive to a magnetic form of tool useful for providing a turning of the lens and a readjustment in its focusing power.

Dependencies are inferred from the claim text.