Implications for Postoperative Visual Loss: Steep Trendelenburg Position and Effects on Intraocular Pressure
Postoperative visual loss is a rare but catastrophic complication after nonocular surgery. A 3-year investigation of the relationship between intraocular pressure and ST procedures is reported. The findings of this research suggest a relationship between prolonged ST and reduced ocular perfusion pressure, challenging the accepted view that cerebral and ophthalmic circulatory autoregulation prevents elevated compartment pressures and reductions in perfusion.
Keywords: Intraocular pressure, ischemic optic neuropathy, mean arterial pressure, ocular perfusion pressure, postoperative visual loss.