A method of manufacturing contact lenses

Details A method of manufacturing contact lenses A method of manufacturing contact lenses

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2181937

A method for providing a contact lens (20) for a patient. According to this method, an optical preform (20) is selected, and a resting position of the optical preform (20) on the patient's eye is determined. An optical feature (11) is also located on the patient's eye. Then, a reference position (12) is located on the surface of the optical preform (20) coincident with the optical feature (11) on the patient's eye, when the optical preform (20) is in the resting position. Finally, the optical modification is provided on the optical preform (20) at a location based on the reference position (12) on the optical preform (20).

Procédé de fabrication d'une lentille de contact consistant à sélectionner une préforme optique et son emplacement de pose sur l'oeil du patient, sur lequel on a, au préalable, déterminé l'emplacement d'un élément optique. Un emplacement de référence est déterminé sur l'oeil du patient, qui coïncide avec l'élément optique lorsque la préforme est en place. Pour terminer, on apporte à la préforme une modification en un point basé sur la position de référence de la préforme.

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