Prediction Model of Microvascular Ischemic Ocular Motor Nerve Palsy and Inflammatory Ocular Motor Nerve Palsy in Chinese Patients

Inclusion Criteria

• •* Patients with acute bilateral diplopia within 1 week of onset at admission.
• •1\. Ischemic Group:
• •1. Sudden onset of unilateral CN III, CN IV, or CN VI palsy.
• •2. Isolated CN III (without pupil involvement), CN IV, or CN VI palsy.
• •3. Presence of vascular risk factors (VRFs).
• •4. Significant symptom recovery no earlier than 2 months after onset, with complete (or nearly complete) recovery within 3-6 months.
• •2\. Inflammatory Group:
• •1. Unilateral painful CN III, CN IV, and/or CN VI palsy.
• •2. Symptoms (including pain or diplopia signs) significantly improved within 72 hours after treatment with corticosteroids.
• •3. MRI of the cavernous sinus showing inflammation, i.e., abnormal widening/enhancement of the affected cavernous sinus with or without granulomatous changes/inflammatory manifestations of adjacent tissues.