Hydrophilic polymer networks (hydrogels) are potentially useful scleral buckling materials for retinal detachment surgery. The swelling characteristics of three hydrogels in free solution and within a confined tissue space in vivo are described. The compressibility (compliance) of PGMA [poly (glyceryl methacrylate)] 12:1, PGMA 5:1, and PHEMA [poly (2-hydroxyethyl methacrylate)] at various levels of hydration and the clinical effects and biologic tolerance of scleral bucklings obtained with hydrogels were studied.
Calabria GA, Pruett RC, Refojo MF. Further Experience With Sutureless Scleral Buckling MaterialsI. Hydrogels. Arch Ophthalmol. 1971;86(1):77-81. doi:10.1001/archopht.1971.01000010079015