Method of manufacturing contact lenses

Details Method of manufacturing contact lenses Method of manufacturing contact lenses

1994-05-20

1996-06-18

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

264 18, 264 24, 264 27, 351161, 351177, G02C 704, B29D 1100

Patent

active

055283217

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

REFERENCES:
patent: 5129718 (1992-07-01), Futhey et al.
patent: 5142411 (1992-08-01), Fiala
patent: 5170192 (1992-12-01), Pettigrew et al.
patent: 5406341 (1995-04-01), Blum et al.
CONTACTO, Jan. 1976; pp. 31-35; 351/161; KANDALL, C. A.: Ultrafocal.RTM.Bifocal Contact Lens.

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