Abstract
Summary The chemistry and properties of silicone rubbers are described. Silicone rubber appears favourable for contact lenses because it is inert, relatively soft, has high gas transmission, is hydrophobic and can be moulded. Gas permeability is probably not as high as claimed and many properties are still unknown. Moulding has limited the parameters that are available. Surface wettability is still inadequate, and the surface degenerates with lipid-mucus adhesion. The results of fitting silicone rubber lenses for aphakia are described. They are useful alternatives where hard lenses are not tolerated. Extended wear beyond six days is not advised.
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Schedule a callMore From: Australian and New Zealand journal of ophthalmology
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