Thick,gelatinous substances that are injected into the eye to keep the chamber expanded or to replace vitreous humor are

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Viscoelastic agents are thick,jellylike substances injected into the eye during certain ophthalmic procedures.These agents are often injected into the anterior chamber during cataract extraction (phacoemulsification)to keep the chamber expanded,prevent injury to surrounding tissue,and protect the cornea.Viscoelastic agents may also be used as a vitreous substitute or tamponade (compression).

Thick,gelatinous Substances That Are Injected into the Eye to Keep