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modern lenses appeared on the market, says general manager of laboratories contact lens division in denver. those lenses were made from a hard plastic called polymethyl methacrylate, contact or pmma, that allowed no oxygen to reach lenses the area of the cornea mail under the lens. imagine sticking your glasses directly to your eyeballs--clear vision order but discomfort and awkwardness. bausch and lomb introduced the first soft contact lens. this development signaled "a revolution in comfort to the patient," says a materials scientist at the university. soft contacts rely on plastics called hydrogels, polymers that soak up a lot of water. the first hydrogel used for contacts was hydroxyethyl methacrylate, or hema. lenses contact of this material can hold 38 to 70 percent water by weight, which makes the lens soft and flexible.

modern lenses appeared on the market, says general manager of laboratories contact lens division in denver. those lenses were made from a hard plastic called polymethyl methacrylate, contact or pmma, that allowed no oxygen to reach lenses the area of the cornea mail under the lens. imagine sticking your glasses directly to your eyeballs--clear vision order but discomfort and awkwardness. bausch and lomb introduced the first soft contact lens. this development signaled "a revolution in comfort to the patient," says a materials scientist at the university. soft contacts rely on plastics called hydrogels, polymers that soak up a lot of water. the first hydrogel used for contacts was hydroxyethyl methacrylate, or hema. lenses contact of this material can hold 38 to 70 percent water by weight, which makes the lens soft and flexible.

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