Experimental subdural retrobulbar injection of anesthetic

Ann Ophthalmol. 1984 Aug;16(8):716-8.


Sudden respiratory arrest following retrobulbar block, a complication which has gained increasing attention, is explained by an experimental study in which radiopaque dye was injected into the intraorbital subdural space, as could easily be done in a living patient, and was shown by radiography to diffuse posteriorly along the subdural space to the midbrain surrounding the respiratory center. Clinical implications are discussed.

MeSH terms

  • Anesthetics / adverse effects*
  • Humans
  • Injections
  • Respiratory Insufficiency / chemically induced*
  • Respiratory Insufficiency / prevention & control
  • Subdural Space


  • Anesthetics