Ryo Yamashita is one of the rare glasses artists who create from the design stage to the cast stage, using wrought metal techniques. After learning the techniques at a historic glasses studio, he established his own atelier in 1998. Yamashita has established an haute couture system at his atelier. It takes three or four months from the initial measurement to completion. He produces most of the parts by hand and responds to the requests of people who want their own original glasses. Yamashita defines glasses as "the closest personal art" and started to explore the possibilities of glasses as a form of artistic expression. He strives to create new glasses by designing in a playful state of mind, using materials that are never used in mass-produced glasses, such as bamboo or iron. Since 2005, he started to hold exhibitions twice a year at art galleries and made space installations of glasses that incorporated floral arrangements, objects and bamboo. As his works and activities received higher recognition, in 2007, he held a glasses exhibition in Rome, Italy, where glasses were invented.