Lawn mowers, power trimmers, grinding tools and other power tools all can cause serious eye injuries from high-speed projectiles. Even something as simple as hammering a nail can cause flying debris. Safety glasses are a must for these activities.
Safety glasses that offer the best protection include polycarbonate lenses and a safety frame with side shields or a close-fitting wrap style.
Some studies show that 90% of sports related eye injuries can be avoided with the use of protective eyewear, including safety glasses and goggles. Ordinary prescription glasses, contact lenses and sunglasses do not protect against eye injuries.