Little knowledge about the sunglasses - Five

- Apr 17, 2019-


Diopter:

The unit of a lens’s refractive power, equal to the reciprocal of the lens’s focus length in meters. Used as a measurement to prescribe corrective lenses.


Driving Sunglasses:

A style of sunglasses designed to decrease eye strain on drivers thanks to lenses that reduce glare and enhance the driving experience.