The patient had had a left orbital exenternation for sebaceous cell carcinoma and fitted with a 
prosthesis. Nowadays the prosthesis are of excellent quality and may be mistaken for a real eye 
especially if the patient had glasses on. Always suspect an artificial eye or prosthesis if :
  • the two eyes do not move together (however in patients with pegging the two eyes may move almost normally)
  • asymmetrical blinking
  • absent of pupillary reflex