The Basic Lens Design Of Bifocal Safety Eyewear
As the name reflects, a pair of bifocal safety eyewear can serve as either bifocal reading glasses or safety eyeglasses. The reason is that this special kind of spectacles combines the functionalities of traditional bifocals and protective eyewear together. A single pair of bifocal safety glasses can provide a user with both visual need while reading and eye protection against dangerous sources in the environment. In fact, safety goggles or protective eyeglasses are needed by a large number of jobs and hobbies. And people who are operating most power tools are highly encouraged to wear protective goggles. However, traditional goggles or protective eyeglasses are refused by some people who still need visual aids. Regular prescription goggles are then introduced to flatter a special group of people who regularly manage power tools and suffer nearsightedness or farsightedness. (more…)
