Hydrophilic bifocal contact lens

Details Hydrophilic bifocal contact lens Hydrophilic bifocal contact lens

1983-05-05

1985-10-29

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351160H, G02C 704, G02C 706

Patent

active

045497940

ABSTRACT:
Hydrophilic bifocal corneal contact lenses of the alternating-vision type having a critical set of dimensions for the various elements which results in a surprising increase in the success rate of persons wearing these improved lenses.

REFERENCES:
patent: 3031927 (1962-05-01), Wesley
patent: 4199231 (1980-04-01), Evans
patent: 4202848 (1980-05-01), Neefe
patent: 4318595 (1982-03-01), van der Kolk et al.
patent: 4324461 (1982-04-01), Salvatori
"New- Durasoft.RTM. Bifocal", advertisement for Wesley-Jessen Inc., Chicago, Ill. 60603, Fall 1981.
Mandell, The Optometric Weekley, "A No Jump Bifocal Contact Lens", Jun. 1, 1967, pp. 19-21.

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