Protection When should I wear Eye Safety? The Royal New Zealand Foundation of the Blind quotes that "90% of eye injuries are preventable. You only get one pair of eyes, so it's important to choose the right protection." They recommend to avoid unnecessary injury to the eyes, always wear safety glasses or goggles in the following situations:   Mowing the lawns Chopping wood Pruning trees Using a hammer Using power tools Working with chemicals, even household or garden ones Lighting fireworks Changing a car battery Playing ball sports such as cricket, golf or squash Painting Gardening