Some 45 million Americans wear contact lenses. Of them, 15 million wear daily disposables -- soft plastic discs that are worn once and thrown away... Bausch & Lomb has a recycling program for its Biotrue line, which took in 1.9 million contacts last year, according its recycling partner, Terracycle. The eco-conscious could also consider glasses, which last longer than contacts, tend to cost less over time and come with a reduced risk of eye infection.