Insight Equity A.P. X, which does business as Vision-Ease Lens, is quite comfortable creating spectacles. The company specializes in designing, making, and distributing the increasingly popular polycarbonate prescription lenses used in eyewear today. While the company focuses on polycarbonate lenses for their impact resistance, light weight, and ultraviolet-filtering properties, Vision-Ease also manufactures and markets other styles. It produces plastic and glass lenses, as well as lens treatments such as polarized, anti-reflective, scratch-resistant, and photochromic (allowing lenses to darken automatically according to light levels). The company was founded in 1930.