(Thanks to NoCamels.com) Israel’s XPAND has a cool solution for “lazy eye” – a condition affecting around 4 percent of children. XPAND’s Amblyz eyeglasses obstruct the strong eye in automatic, intermittent intervals using an electronic shutter attached to one of the lenses.
http://nocamels.com/2013/07/amblyz-the-cool-way-to-treat-lazy-eye-in-children/