A water insoluble hydrophilic gel comprising: about 30 to about 90% of a hydrophilic polymer of identical or different watersoluble mono olefinic monomers, or copolymer of said watersoluble monomers with 1 to 70% of water insoluble, identical or different mono olefinic monomers, which polymer or {HEAD ~ copolymer} is {TAIL ~ cross} linked with about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000 is disclosed 
is
A water insoluble hydrophilic gel comprising : about 30 to about 90 % of a hydrophilic polymer of identical or different watersoluble mono olefinic monomers , or copolymer of said watersoluble monomers with 1 to 70 % of water insoluble , identical or different mono olefinic monomers , which polymer or { HEAD ~ copolymer } is { TAIL ~ cross } linked with about 10 to about 70 % of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000 is disclosed
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