Intraocular lens and method of retaining in place

Details Intraocular lens and method of retaining in place Intraocular lens and method of retaining in place

1986-07-14

1996-04-16

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Intraocular lens

A61F 216

Patent

active

055078052

ABSTRACT:
Intraocular lenses of non-rigid material are disclosed. In one embodiment, an intraocular lens of HEMA plastic or other soft plastic is cut to a size that is small for emplacing but fills the capsular bag of an eye after it has been emptied of its natural contents. The softening and expanding of a hydrophilic lens is caused by the aqueous humor uptake into the dry lens from the capsule environment. Means such as concentric grooves are also disclosed which engage the rough interior walls of the capsular bag to position and retain the lens in place.

REFERENCES:
patent: 4418431 (1983-12-01), Feaster
patent: 4449257 (1984-05-01), Koeniger
Computer Search attached to application E. C. 25068208 Golbor et al Dep. Materials Sci. Eng. Gainsville, Fla.
Patent Office Scientific printout 25068209 Am. Chemical Society meeting; Las Vegas, Nev. Mar. 28, 1982 Goldberg E. P. et al.
Mehta, et al., "The New Soft Intraocular Lens Implant," Am. Intra-Ocular Implant Soc. J., vol. IV, pp. 200-205, Oct. 1978.
Refolo, "Polymers in Ophthalmic Surgery," J. Biomed. Mater. Res., vol. 5, pp. 113-119 (1971).

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