Only tried on, still new. Has a light prescription. The design of our Griffith was inspired by Japanese wire combo frames with acetate and metal elements, popular in the 80s. Griffith’s Japanese acetate construction is complemented by titanium accents and adjustable temple feature. Eye 46mm, Bridge 23mm, Temple 145mm Cured Cellulose Acetate with Titanium Components Optical Quality CR39 lenses