The new-look glasses sported by Secretary of State Hillary Clinton during Wednesday's testimony to the House and Senate Foreign Relations Committee were worn for health reasons. Clinton's official ...

Closeups of Secretary of State Clinton taken during her Senate testimony Wednesday revealed that her head injury last month left her with lingering vision problems. As she testified about the Sept. 11 ...

To increase the power of the peripheral prism, the bi-part double Fresnel prism combines two prism segments angled to each other. This design allows for up to 43 degrees of expansion to the visual ...

A prominent New York ophthalmologist believes that a special pair of glasses worn by former former Secretary of State Hillary Clinton are the type used to treat the double vision sometimes caused by ...

Lots has been made about Secretary of State Hilary Clinton and her glasses. New York Magazine, for example, ran a photo gallery of how Clinton used her glasses to convey emotions during the Benghazi ...

Prism Projection, Inc. will be offering attendees at LDI 2011 the opportunity to see the next generation of lighting technology with not only a product launch but also a head to head comparison of ...