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Figure. This construction worker was injured by a coworker's nail gun. Fortunately serious injury was averted: the nail entered the orbital rim and penetrated the maxillary sinus without damaging any important eye structures. No other foreign bodies were visible on the radiograph. The nail was pulled out directly under conscious sedation in the emergency department, tetanus vaccination was administered, and the patient was discharged with no further ophthalmologic sequelae. — Ari Giligson, Ophthalmologist, North Delta, BC.