Just as it is only genetically fit peacocks that can grow symmetrical tails with perfectly repeated eyespots, only genetically fit artists, with good muscular co-ordination and perfectvision, can produce accurate repetitions of complex, symmetrical motifs.
Some of the success came from a series of acquistions: Argentinian eye product maker Waicon in December 2011, opthamolagy laser maker Technolas PerfectVision in November 2012, and ISTA Pharmaceuticals, a maker of eye drugs, in March 2012.