Method and assembly for forming an intraocular lens
AssigneeAMO Groningen B.V.
InventorsMitchell Gerardus Maas, Martin Dinant Bijker
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Abstract
A method of forming a mold insert used to produce an intraocular lens (IOL) mold is disclosed herein. The method includes providing stock material and cutting the stock material, which includes multiple cutting steps. The cutting steps are performed on transitional regions of supporting portions of the mold insert. Peripheral surfaces of the mold insert have varying roughness values, and supporting portions of the mold insert have a greater roughness than the optical portion of the mold insert. An IOL is also disclosed herein that is formed using an IOL mold that is injection molded using the mold insert. A method of forming the IOL is also disclosed herein.
Claims10
A method of forming an intraocular lens (IOL), the method comprising:
- (i) forming a mold insert via electrical discharge machining (EDM) wire cutting around a periphery of the mold insert, wherein the EDM wire cutting is started and stopped in regions of the mold insert defined on at least one transitional region of at least one support portion;
- (ii) arranging the mold insert in a molding assembly to form an IOL mold;
- and
- (iii) forming the IOL from the IOL mold.
Dependencies are inferred from the claim text.