Polymacon is a non-proprietary (i.e., generic) term for a hydrophilic polymer of 2-hydroxyethylmethacrylate (HEMA) cross-linked with ethylene glycol dimethacrylate (62%) and water (38%).

[1] It is used in the manufacture of soft contact lenses, and is considered a low-hydration hydrogel of nonionic polymer.

[2]

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