what's the function of goggles eyeglasses? and what kind of users need them?

[online glasses]

Most sports require good visual acuity for satisfying performance, such as tennis ball, golfing and skiing. Sport-specific glasses can both enhance performance and provide necessary eye protection. This type of specialty eyewear is often made of polycarbonate lenses, covering skiing goggles, shooting glasses, swimming goggles and so on.