Luz, one of the major French voluntary groups of opticians, has announced a 2 percent increase in the number of its affiliated members. They reached a total of 1,750 in 2018 against 1,715 in 2017, Acuité reports. The company purchased €167 million in optical goods last year, up slightly from €166 million in 2017, from 180 suppliers. Luz is also present in the hearing-aid business through its Luz Audio and Audition Conseil banners, representing a total of 420 locations and centralized purchasing of €31 million.