A 27 year old professional landscaper was using his weed whacker (string trimmer) in Boston when it flung a nail into his right eye. He used his cell phone to call 911 and was in the emergency department within 20 minutes. Other than suffering severe pain, he was alert and well. Eight weeks after removal his sight was fully restored. His physicians describe him as being "extremely fortunate."
PositiveTip: Always wear goggles when using power equipment, including weed whackers.