Method of making multi-focus ophthalmic lens

Details Method of making multi-focus ophthalmic lens Method of making multi-focus ophthalmic lens

B - Operations, Transporting

29

D

26/197

B29D 11/00 (2006.01) G02C 7/02 (2006.01) G02C 7/06 (2006.01)

Patent

CA 1318493

METHOD OF MAKING MULTI-FOCUS OPHTHALMIC LENS ABSTRACT A method of producing multifocal ophthalmic lenses having a near vision minor lens element adhesively secured to the ocular surface of a major lens is disclosed. The ocular surface of the major lens is finished to provide an ophthalmic prescription lens. This ocular surface may have a spherical, cylindrical, or prismatic curvature, or any combination thereof, and thus generally may have a complex toric curvature. The minor lens has a predetermined "add power", to provide a near vision segment on the major lens, and preferably is flexible, or is made flexible as by heating, so that it can conform to the shape of the toric curve on the ocular surface of the major lens without distorition or change in its add power. An adhesive material is placed on the major lens, and the minor lens is carefully positioned and gently pressed against it so that it conforms to the curvature of the major lens.

598209

Affiliated with

Also associated with

Rating

Method of making multi-focus ophthalmic lens 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 making multi-focus ophthalmic lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making multi-focus ophthalmic lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1218539