Deswelled, hydrogel intraocular lenses

Details Deswelled, hydrogel intraocular lenses Deswelled, hydrogel intraocular lenses

1986-11-26

1989-02-28

Frinks, Ronald L.

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

Eye prosthesis

Intraocular lens

206 51, 206438, A61F 216, B65D 8122

Patent

active

048081825

ABSTRACT:
A method for reducing the size of hydrogel intraocular lenses by means of deswelling in hyperosmotic solutions (e.g., saturated sodium chloride solution) and a corresponding packaging arrangement are described. The deswelled, hydrogel lenses can be inserted through a much smaller surgical incision than fully hydrated lenses, yet retain all of the inherent advantages of hydrogel intraocular lenses (e.g., autoclavability). The lenses are rehydrated by the aqueous humor following implantation.

REFERENCES:
patent: 3220960 (1965-11-01), Wichterle et al.
patent: 4449257 (1984-05-01), Koeniger
patent: 4556998 (1985-12-01), Siepser
patent: 4573998 (1986-03-01), Mazzocco
Barrett et al., "Corneal Endothelial Loss with New Intraocular Lenses", Am. J. of Ophthalmology, vol. 98, pp. 157-165 (1984).
Blumenthal et al., "Interaction of Soft and Hard Intraocular Lenses with Cat Cornea Endothelium", Cornea, vol. 1, pp. 129-132 (1982).
Epstein et al., "Soft Implant Lenses in Cataract Surgery", Slack Incorporated, pp. 143-150 (1986).
Encyclopedia of Polymer Science and Technology, vol. 15, pp. 273-290 (1971).

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