| http://www.w3.org/ns/prov#value | - In accordance with the invention, a lens-forming material is a composition which can be a solution or a melt at a temperature from about 20??? C. to about 85??? C. Preferably, a lens-forming material is a solution of at least one prepolymer of the invention and other desirable components in water, or an organic solvent, or a mixture of water and one or more organic solvents.
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