Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
1999-08-06
2001-01-23
Sugarman, Scott J. (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
C351S16000R, C351S161000
Reexamination Certificate
active
06176580
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to contact lenses. In particular, the invention provides methods for designing and fitting contact lenses that account for the material properties of the lenses.
BACKGROUND OF THE INVENTION
The use of contact lenses for correction of visual acuity is well known. Contact lenses are presently available for correction of any number of visual acuity problems including, without limitation distance and near visual acuity. Additionally, contact lenses are available that provide cylinder correction for astigmatism caused by the shape of the eye.
In prior art lens designs, generally no allowance is made in the lens design for individual fitting characteristics of the lens. As a result, whether or not the lens is successful in correcting visual acuity depends on whether or not a proper fit is achieved. Because no allowance is made for individual lens fit, not all lenses are properly fitted. Therefore, a need exists for lens design and fitting methods that take into account the lens's individual characteristics.
REFERENCES:
patent: 5448312 (1995-09-01), Roffman et al.
patent: 5485228 (1996-01-01), Roffman et al.
patent: 5682223 (1997-10-01), Menezes et al.
patent: 5715031 (1998-02-01), Roffman et al.
patent: 5847802 (1998-12-01), Menezes et al.
“Using Corneal Topography” Contact Lens Spectrum, Mar. 13-15, 1999.
Clutterbuck Timothy A.
Ebel James A.
Poling Timothy R.
Roffman Jeffrey H.
Ross, III Denwood F.
Johnson & Johnson Vision Care Inc.
Sugarman Scott J.
LandOfFree
Method of designing and fitting contact lenses taking into... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of designing and fitting contact lenses taking into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of designing and fitting contact lenses taking into... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2451851