| In the modern manufacturing industry, there are | | | | Most things on the Earth are more or less rooted |
| many jobs and tasks that require the workers to | | | | since its creation. Bifocal safety glasses can also |
| wear safety eyeglasses or protective goggles. | | | | be called bifocal reading glasses or bifocal |
| Some of these jobs involve the operation of | | | | protective goggles and so on. Whichever name |
| heavy equipment or materials that are hazardous | | | | being called, its multi-functional property can be |
| to the eyes. The eye is absolutely one of the | | | | reflected. First of all, bifocal safety glasses come |
| most precious organs for nearly every individual. | | | | similar in external appearance to regular protective |
| Performing any of those dangerous tasks, it is | | | | eyeglasses. They have wrap-around, large lenses |
| necessary to protect the eyes from being hurt or | | | | which are aimed to cover the whole part of the |
| injured. | | | | eyes. In this way, external dangerous objects can |
| In addition, there are actually some active sports | | | | be blocked from all angles. A slight difference is |
| such as football and basketball. These games | | | | that the frame of bifocal safety glasses usually |
| always involve much body interaction including the | | | | does not extend all the way around the lenses. |
| eyes. Protective eyewear is also needed during | | | | Bifocal safety glasses differ from regular safety |
| these sports. Each year, there are thousands of | | | | glasses mainly in lens power. The vast majority of |
| individuals who get hurt in the eye or eyes. | | | | regular protective eyeglasses are equipped with |
| According to the American Academy of | | | | non-prescription or plain lenses, which are strong |
| Ophthalmology, sports and recreational activities | | | | enough to block any impact. However, workers |
| cause more than 40,000 eye injuries each year in | | | | participating in those dangerous jobs may still |
| the US alone. However, 90% of these injury | | | | need vision correction. In particular, presbyopic |
| cases can be prevented by wearing protective | | | | workers involving dangerous yet close up tasks |
| eyeglasses. With the technological advancement in | | | | further need bifocal reading glasses for easy |
| both lenses and frames, nowadays there is even | | | | switches between near and distance vision. In this |
| a special type of protective spectacles, say, | | | | case, the perfect solution is bifocal safety glasses. |
| bifocal safety glasses. | | | | This is actually a combinational type of eyewear. |
| Bifocal safety glasses are exactly a later comer in | | | | They can offer both proper eye protection and |
| the eyewear industry. But to some extent, these | | | | vision correction. |
| particular eyeglasses were invented quite naturally. | | | | |