Hydrophilic siloxane monomers and dimers for contact lens materials, and contact lenses fabricated therefrom
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United States of America Patent
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-
Dec 8, 1987
Issued Date -
N/A
app pub date -
Apr 26, 1985
filing date -
Apr 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monomer for making a contact lens with improved oxygen permeability and stability is disclosed as having a first portion for increasing wettability and a second portion for increasing oxygen permeability. The first portion includes a side-chain functionality of the structural formula: ##STR1## and is hydrophilic. The second portion includes a siloxane moiety, and is usually hydrophobic. Also disclosed is a cross-linking agent, a polymeric material for making contact lenses, a method for making the polymeric material, and a method for making contact lenses from the material.
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