Back in Stock: Neochromes in TRIVEX Posted on Oct 25, 2024 IOT's premium photochromic lenses are now available to order in Trivex. A great choice for fast fadeback and 100% UV protection. Neochromes Trivex: gray/ brown, 2.00, 4.00, 5.00, 6.00 and 8.00 base curves.