Surface modification of hydrophilic contact lenses

Details Surface modification of hydrophilic contact lenses Surface modification of hydrophilic contact lenses

1985-01-28

1986-02-11

Hoffman, James R.

Coating processes

Optical element produced

Transparent base

351160H, G02C 704, B05D 506

Patent

active

045698589

ABSTRACT:
The present invention relates to a method of modifying a surface of a soft contact lens to make the lens resistant to soiling. The method comprises initiating a reaction between the unhydrated lens surface containing carboxylic acid or alcohol moieties and agents capable of reacting with carboxylic acid or alcohol moieties in order to produce a surface which then either has a hydrophobic coating, a nonionic hydrophilic coating or is charged.

REFERENCES:
patent: 4411932 (1983-10-01), Kwan
patent: 4442141 (1984-04-01), Lim

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