If you’ve ever worn glasses, Leonardo Del Vecchio may well have made or sold them. The entrepreneur rose from a poverty-stricken youth in a Milan orphanage to become the billionaire owner of Luxottica, a global behemoth that helped transform stodgy spectacles into a fashion item. He manufactured frames for scores of luxury brands such as Armani, Dolce & Gabbana, and Chanel. He acquired major brands like Ray-Ban, Oakley, and Persol. And he achieved retail dominance as well, buying up the chains Pearle Vision, LensCrafters, and Sunglass Hut. The company, which became EssilorLuxottica after a 2017 merger, made the hard-driving Del Vecchio one of the world’s wealthiest men, worth an estimated $27 billion. “Together, we invented a phenomenon,” said designer Giorgio Armani, built on the realization “that glasses, from simple…