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 ...

Eyeglasses have been around for centuries, dating back at least to the 13th century and possibly even the 2nd century. IXI ...

Nearly two years ago, Wearality created a unique Fresnel lens for VR headsets offering a claimed 150 degree field of view. The company successfully funded a VR viewer featuring the lens called ...

Fresnel, pancake or aspherical: VR glasses contain a lot of optical know-how, but choosing the right lens remains a compromise. Choosing the right lens is crucial for image quality, comfort and ...

Fresnel lenses were invented over two centuries ago to help lighthouses prevent shipwrecks. They're still enhancing safety, but now it's for cars and trucks.

Apple is expected to use Fresnel lenses in its rumored augmented reality headset to increase the device's field of view and keep weight less than 150 grams, according to analyst Ming-Chi Kuo. In a ...

You might not have noticed that Vice President Joe Biden has recently been wearing eyeglasses until watching Tuesday’s 2013 State of the Union Address. In fact, as he sat behind President Obama, Biden ...