Disclosed is a process for forming an organometallic cyclometallated iridium compound comprising reacting an iridium halide complex with a silver salt and excess organic cyclometallating ligand in a diol solvent. The method includes the steps of laminating a dielectric layer on a substrate, laser drilling channels in the dielectric film and the substrate, and filling channels with a filler material. Generally vertical sidewall surfaces of a depression keyway and vertical surfaces of a projection key provide mechanical resistance against lateral movement of the cutting insert. 0 equivalents of alkylphosphate. The cannula is shaped to facilitate insertion thereof into a patient’s eyeball.