Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1986-08-25
1987-10-27
Arnold, Bruce Y.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351160H, G02C 704, G02C 706
Patent
active
047025735
ABSTRACT:
A soft contact lens of soft opthalmic plastic material with an anterior portion resiliently deformable by movement of the eye. The lens is of the scleral-corneal type, and has a base-down prism portion which moves under the lower eyelid. When the eye gazes downwardly and inwardly, pressure of the lower lid on the thickened portion of the lens causes a bulging of the anterior portion of the lens near the center, creating an increase in diopter power. A slab-off bevel of the lens sides shapes the bulge into proper spherical condition for clearer vision.
REFERENCES:
patent: 3279878 (1966-10-01), Long
patent: 3300909 (1967-01-01), Cooper et al.
patent: 3472581 (1969-10-01), Bronstein
patent: 3485556 (1969-12-01), Naujokas
patent: 3684357 (1972-08-01), Tsuetaki
patent: 4174156 (1979-11-01), Glorieux
patent: 4199231 (1980-04-01), Evans
patent: 4324461 (1982-04-01), Salvatori
patent: 4418991 (1983-12-01), Breger
Arnold Bruce Y.
Sugarman Scott J.
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