[Not Available].

In this case report, a 58-year-old male with comorbidities of BMI 41 kg/m2, hypertension and diabetes type 2 underwent radical cystectomy. The operation was performed in 30-degree Trendelenburg and lasted > 7 hours with a total blood loss of 850 ml. The patient presented with painless bilateral vision loss upon awakening. MRI, CT and CT angiography of the cerebrum was performed and revealed arteriosclerosis and hypophysis adenoma. Neurological and ophthalmic consults were performed. Three weeks post-operatively, bilateral papillary atrophy was present, and posterior ischaemic optic neuropathy was confirmed.