Miraculous recovery of perioperative acute uniocular loss of vision following spine surgery in prone position

An 18 years old female came to emergency with low back pain radiating to left lower limb for 8 months. The patient had no comorbidities as such and was hemodynamically stable with HR-72/min, BP-120/60 mmHg, Spo2-98% in room air, RBS-125 mg/dl. Patient was diagnosed with L5-S1 PIVD with Lumbar Canal Stenosis and was planned for L5-S1 instrumented spinal Stabilization with L5 laminectomy and discectomy under general anaesthesia. Preoperative status of the patient was stable. Perioperatively patient had uniocular left sided complete loss of vision for 3 days following which gradual improvement of vision to normal restoration of vision achieved after 4 months along with a diagnosis of left optic neuritis with severe retino-optic nerve pathway dysfunction.