Eye-medicating contact-lens construction

Details Eye-medicating contact-lens construction Eye-medicating contact-lens construction

1983-04-15

1986-02-18

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351160R, 604893, 604895, A61M 3100, G02C 704

Patent

active

045710392

ABSTRACT:
The invention contemplates eye-medicating contact-lens constructions wherein a small central optical component is retained by surrounding fenestrated haptic structure which is the vehicle for eye medication. The haptic structure is initially flat but axially flexible as to be self-adapting to the surface of the cornea and to be self-retaining of its position, via moisture at the surface of the cornea. Medication carried by the haptic is made available to the surface of the cornea by mild pumping action of haptic structure on corneal fluid, the medication being drawn from storage in the haptic, by the wash of liquid involved in the pump action.

REFERENCES:
patent: 3926188 (1975-12-01), Baker et al.
patent: 3957049 (1976-05-01), Neefe
patent: 3973837 (1976-08-01), Page
patent: 4402579 (1983-09-01), Poler

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