Future VR headsets could use a new type of lens inspired by holographic devices. The bilayer bifocal lens relies on external ...

Left and right Diagram showing how left circularly polarized (LCP) light is converted by the bifocal lens into separated beams of LCP light and right circularly polarized (RCP) light. (Courtesy: Fan ...

The bifocal lenses are made from bilayer structures of liquid crystal (LC) cells and LC polymer. These lenses split light with a left-handed circular polarization (LCP) into two focused light ...

Researchers have developed a new type of bifocal lens that offers a simple way to achieve two foci (or spots) with ...

Entertainment reporter Teri Hart and podcaster Ashley Ray discuss what A24’s new thriller Heretic says about organized ...

We’ve compiled a list of the top polarized reader sunglasses available on the market to protect your eyes and enhance your vision in sunny conditions. These Polarized Bifocal Reading Sunglasses are ...

The global disposable contact lenses market is poised for robust growth, projected to reach a value of USD 16.5 million by ...

From the hand-held magnifying lenses used by Italian artists and scholars in the 13th Century, to the invention of bifocal lenses by American statesman and inventor Benjamin Franklin in 1784 ...

We already have contact lenses that contain more than one prescription, enabling the wearer to adjust her focus depending on the distance from the object she is viewing—similar to bifocal or ...

Clinical trial design is a key aspect of the successful conduct of clinical trials. It involves deciding parameters such as the number of patients, the length of the trial, the comparator arm (in ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

The first patent issued for an invention by an American inventor was in 1790 for an improvement to potash production, and it ...