Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1996-03-18
1997-05-13
Jones, Mary Beth
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
056287984
ABSTRACT:
An adjustable ocular IOL/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. There is a second concentric annulus removably seated in the outer annulus. The second annulus has a threaded inner surface. A rotatable annular lens mount, bearing an appropriate lens, is threadedly engaged in the second annulus. The lens mount 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.rarw.0.fwdarw.-3 diopters. The second annulus can be removed from the base annulus and lifted out of the eye so that the rotatable lens assembly 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 assembly.
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Day Thom
Eggleston Harry C.
Denk Paul M.
Eggleston Harry C.
Jones Mary Beth
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