Intravitreal injection of bevacizumab achieved short-term reduction of fluorescein leakage from persistent active NV without loss of vision in patients with diabetic retinopathy. Further studies to investigate the role of anti-VEGF therapy with bevacizumab for the management of diabetic retinopathy refractory to laser treatment are warranted.

Among the three anesthetic techniques, peribulbar anesthesia was associated with greater effectiveness in controlling injection-related pain but was least effective in controlling entire procedure pain. There was no significant difference in pain scores between the topical and subconjunctival groups, and topical anesthesia was associated with less subconjunctival hemorrhage.

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With 1-year follow-up, treatment with intravitreal bevacizumab was associated with reduced fluorescein leakage from persistent NV and improved visual acuity in patients with diabetic retinopathy unresponsive to panretinal photocoagulation.