and hold the optic in its proper place in the eye the optic and haptic s can be of the same or different material a multipiece lens is so called because the optic and the haptic s are made separately and then the haptics are attached to the optic in a single piece lens the optic and the haptics are formed out of one piece of material depending on the material the haptics are then cut or lathed out of the material to produce the iol in addition to iols the materials of the present invention are also suitable for use in other ophthalmic devices such as contact lenses keratoprostheses and corneal inlays or rings the invention will be further illustrated by the following examples which are intended to be illustrative but not limiting a flask is flushed with n 2 and charged with 4 bromo phenethyl alcohol 20 mmol and dissolved in 1 1 et 3 n dioxane bis triphenylphosphine palladium ii dichloride pdcl 2 pph 3 2 0 2 mmol is added followed by 0 4 mmol of cui trimethylsilylacetylene 24 mmol is added drop wise to the reaction mixture the reaction mixture is stirred overnight under n 2 the solvent is removed under vacuum and the resulting liquid is extracted by washing with ethyl ether the ethyl ether extracts are combined and washed with h 2 o then dried over anhydrous sodium sulfate the solvent is removed under vacuum and the product is purified by column chromatography the purified product is placed in a n 2 flushed flask and dissolved in methanol potassium fluoride 65 mmol is added and.