1598
We report a 78-year-old man who had acute unilateral total visual loss after retrogasserian phenol injection for the treatment of trigeminal neuralgia.
 a 78-year-old man: Subject; 78-year-old: Subject.Age; man: Subject.Gender; acute unilateral total visual loss: Effect; retrogasserian phenol injection: Treatment; trigeminal neuralgia: Treatment.Disorder; injection: Treatment.Route; phenol: Treatment.Drug
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 a 78-year-old man: Subject; 78-year-old: Subject.Age; man: Subject.Gender; acute unilateral total visual loss: Effect; retrogasserian phenol injection: Treatment; trigeminal neuralgia: Treatment.Disorder; injection: Treatment.Route; phenol: Treatment.Drug