Non arteritic anterior ischemic optic neuropathy; does Anticoagulation help?

Area of Science:

• Ophthalmology
• Neurology
• Vascular Medicine

Background:

• Non Arteritic Anterior Ischemic Optic Neuropathy (NAION) is a common cause of acute vision loss in individuals over 50.
• Early intervention may be crucial for managing NAION and preventing further visual decline.

Purpose of the Study:

• To evaluate the efficacy of anticoagulation therapy using heparin and warfarin in patients diagnosed with NAION.
• To determine if anticoagulation improves visual acuity in NAION patients presenting within four weeks of symptom onset.

Main Methods:

• A prospective, interventional pilot study involving 24 NAION patients.
• Patients received anticoagulation with heparin and warfarin.
• Visual acuity, visual fields, and thrombophilia screening were assessed at baseline and at 1, 3, and 6 months.

Main Results:

• Significant visual acuity improvement was observed in 66.6% of patients.
• 16.7% experienced marginal improvement, and 12.5% maintained stable vision.
• Only 4.1% of patients showed a decline in visual acuity post-treatment.

Conclusions:

• Anticoagulation with heparin and warfarin is beneficial for NAION patients presenting within 4 weeks of symptom onset.
• The observed improvement in visual acuity surpasses rates of spontaneous recovery reported in literature.