Costa Del Mar has appointed Holly Rush as chief executive, effective April 25. She will replace Chas MacDonald, who announced his retirement as president and chief executive of the Essilor-owned brand of sunglasses last month. For the past 25 years, Rush had held key leadership roles at companies like Duracell/Gillette, L'Oreal and, most recently, Luxottica. She joined Luxottica as senior vice president of sales in 2011 and was promoted to president of wholesale for North America in 2014.