Making a traditional glass lens requires a lot of experience ... He shows us a working lens made from transparent plastic tube, and even successfully smoulders a piece of paper with it under ...

the lens functions like a regular glass or polycarbonate lens. The researchers would need to test their prototype with people who have photosensitive epilepsy before commercializing their product ...

They make the polarized lenses from the company's Maui Brilliant, a polycarbonate material that's much lighter than glass but with optics nearly as clear, while being shatter and scratch resistant.

Polycarbonate lenses can prevent scratch ... You could also be a good fit for transition lens eyeglasses if you spend a lot of time both indoors and outdoors in the same day.