<unk> ng generally does not present any particular risks to the individual, and is usually more an annoyance than a risk of injury. The fits of<unk> ng brought about by the<unk>  can, however, have dangerous implications during certain scenarios and activities, such as operating a vehicle, or while undergoing operations (dental, optical) and having bright lights directed towards the patient's face. Vehicle operation A fit of<unk> ng while operating a vehicle can cause the operator to lose control of that vehicle, resulting in injury to the person, and damage to the vehicle and/or surroundings. In particular,<unk> <unk> ng poses a considerable risk to pilots, due to the frequent presence of bright sunlight and the precise reactions needed to successfully control the aircraft. For the pilot of a fighter aircraft, if an uncontrollable fit of<unk> ng were to occur during aerial combat, the pilot could be incapacitated when his or her situational awareness needs to be greatest. A plane landing on an aircraft carrier or shoreline also requires precise movements and quick reflexes. The reflection of the sun from surrounding water has a high probability of producing at least one<unk><unk>  for pilots who have the reflex. Any amount of<unk> ng while attempting to land could cause the pilot to lose control, potentially resulting in disaster. Medical procedures Uncontrollable fits of<unk> ng are common in patients under propofol sedation who undergo periocular or retrobulbar injection.
Photic sneeze reflex
Pharyngeal reflex
Snout reflex
Pressure of speech
Alaryngeal speech
Palmomental reflex
Tonic labyrinthine reflex
Chaddock reflex