Instrumental studies on silicone oil adsorption to the surface of intraocular lenses

► It was found that PHEMA and Acrysof IOLs possess silicone oil repellant ability. ► The residual silicone oil was detected on the surfaces of PMMA and silicone IOLs. ► XPS studies showed that silicone oil coverage of PMMA lenses was 12%. ► Silicone oil covered the entire surface of the silicone IOLs.