Soft multifocal contact lens

Details Soft multifocal contact lens Soft multifocal contact lens

2002-06-13

2004-06-08

Sugarman, Scott J. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S16000R

Reexamination Certificate

active

06746119

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a Contact Lens.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention there is provided a multifocal contact lens characterised in that the contact lens is made of flexible material, the contact lens is of a unitary construction and the contact lens is arranged to translocate on an eye, the contact lens having a front surface and a rear surface and an upper end and a lower end, wherein the lower end of the contact lens is truncated so as to provide a relatively deep end surface which is arranged to rest on a lower eyelid of the patient, the truncated lower end being provided with an integral forwardly projecting ledge having a lower surface which is also arranged to rest on the lower eyelid of the patient.


REFERENCES:
patent: 4573775 (1986-03-01), Bayshore
patent: 4813777 (1989-03-01), Rainville et al.
patent: 5071244 (1991-12-01), Ross
patent: 5483304 (1996-01-01), Porat
patent: 5635998 (1997-06-01), Baugh
patent: 2002/0021410 (2002-02-01), Ye et al.
patent: 2582416 (1986-11-01), None
patent: 2033101 (1980-05-01), None
patent: WO 84/04401 (1984-11-01), None
patent: WO 99/23527 (1999-05-01), None

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