EE was welding the side of a rairoad car on ladder. he came down ladder to start another task. he removed his welding hood, hard hat and safety glasses to wipe sweat from forehead. while wiping sweat, a hard shelled bug flew into eye. he worked until 1130 am and then went home. approx. 6 pm. he went to er for eye pain dr's instructions were to take off work on 4-24.