The Direction de la Recherche, des Etudes et des Statistiques (DREES), a French research and statistics bureau, has published its latest figures on the country's health expenses, confirming a small decline in the French market already observed by GfK. The bureau found that consumption of ophthalmic glasses and contact lenses declined by 0.7 percent to 6.1 billion in 2017, after 15 consecutive years of growth. Acuité further reports that most of the decrease is attributable to a 0.6 percent decline in volume, while average prices remained largely flat. Broken down by product category, lenses represent 64.7 percent of total expenses while frames and contact lenses account for 29.8 percent and 5.5 percent respectively.