Good for reading the paper, watching a movie and everything in between, TruFocals glasses are the first spectacles to offer adjustable focus on the go. Each lens consists of an outer lens with a corrective distance prescription, and a flexible inner lens. Attached to the latter is a membrane filled with a silicon-based liquid, which remains transparent and fluid at any temperature. Flicking the slider mechanism built into the bridge squeezes the liquid, changing the curvature of the membrane to bring nearby or faraway objects into focus.
Available now. $895; trufocals.com