Contact lens eyeball centering support of soft material for use

Details Contact lens eyeball centering support of soft material for use Contact lens eyeball centering support of soft material for use

1977-02-28

1979-06-12

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

G02C 704

Patent

active

041578643

ABSTRACT:
A contact lens eyeball centering support of soft material for use in conjunction with hard corneal contact lenses. The support has the form and the material of a soft contact lens and is characterized by the fact that the central optical part is absent, to create a free opening without usual system. A hard corneal contact lens can, when the support is in position on the eye, be positioned into the free central opening without adhesion. The preferred embodiment of the lens eyeball centering support of soft material has an external diameter of approximately 15 mm and an internal diameter that corresponds approximately to the diameter of a standard commercial corneal hard contact lens.

REFERENCES:
patent: 3619044 (1971-11-01), Kamath

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