Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1999-04-05
2000-10-03
Sugarman, Scott J.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351177, 351219, G02C 704
Patent
active
061262854
ABSTRACT:
A trial lens has a lens surface provided with an index. A stable position of the trial lens on a cornea of a wearer thereof is measured by the use of the index. The position of an optical center of a contact lens to be worn by the wearer can be determined based on the measurement done with the index of the trial lens in order to set the position of the optical center of the contact lens so as to fit contact lenses on individual wearers.
REFERENCES:
patent: 5406341 (1995-04-01), Blum et al.
patent: 5598234 (1997-01-01), Blum et al.
Goto Yuji
Oyama Hiroyuki
Menicon Co. Ltd.
Sugarman Scott J.
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