Contact lens treatment

Details Contact lens treatment Contact lens treatment

1977-10-19

1978-12-26

Hoffman, James R.

Coating processes

Optical element produced

Transparent base

351 40, 351160H, G02C 704, G02B 110

Patent

active

041316967

ABSTRACT:
Hard type contact lenses, such as those made of poly methyl methacrylate, are treated with an aqueous colloidal suspension of a physiologically inert inorganic hydrous oxide to render the lens surfaces wettable by lacrimal fluids thus decreasing eye irritation and increasing wearing comfort.

REFERENCES:
patent: 3549747 (1970-12-01), Krezanoski et al.
patent: 3657003 (1972-04-01), Kenney

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