Bifocal contact lens and method of making same

Details Bifocal contact lens and method of making same Bifocal contact lens and method of making same

1993-06-10

1994-12-13

Rachuba, Maurina T.

Abrading

Abrading process

Glass or stone abrading

451 57, B24B 100

Patent

active

053719760

ABSTRACT:
A bifocal contact lens is provided having a posterior surface that is formed to fit a human cornea and an anterior surface. The bifocal contact lens has an upper portion and a lower portion when viewed in a planar view. The anterior surface includes a distance vision surface and a near vision surface. The distance vision surface is substantially semicircular in form and located in the upper portion of the bifocal lens. A near vision surface is disposed within the lower portion of the bifocal contact lens and also surrounds the distance vision surface.

REFERENCES:
patent: 1414117 (1922-04-01), Drescher
patent: 3279878 (1966-10-01), Long
patent: 3415597 (1968-12-01), Harman
patent: 3726587 (1973-04-01), Kendall
patent: 3973838 (1976-08-01), Page
patent: 4202848 (1980-05-01), Neefe
patent: 4302081 (1981-11-01), Tsuetaki
patent: 4460275 (1984-07-01), Spriggs
patent: 4618229 (1986-10-01), Jacobstein et al.
patent: 4693572 (1987-09-01), Tsuetaki et al.
patent: 4813777 (1989-03-01), Rainville et al.
patent: 4850689 (1989-07-01), Martin et al.
patent: 4854089 (1989-08-01), Morals
patent: 4869587 (1989-09-01), Breger
patent: 4890913 (1990-01-01), De Carle
patent: 4923296 (1990-05-01), Erickson
patent: 4938583 (1990-07-01), Miller
patent: 4938583 (1990-07-01), Miller
patent: 4971432 (1990-11-01), Koeniger
patent: 5017000 (1991-05-01), Cohen
patent: 5074082 (1991-12-01), Cappelli

Affiliated with

Also associated with

Rating

Bifocal contact lens and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bifocal contact lens and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bifocal contact lens and method of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1186108