Preoperative electroretinogram and postoperative visual outcome in patients with diabetic vitreous hemorrhage.

Purpose: To determine whether the single-flash electroretinogram (ERG) can predict the postoperative outcome in diabetic cases where massive vitreous hemorrhage precludes fundus observation.

Methods: Eighty-five diabetic patients (105 eyes) who underwent vitrectomy due to dense vitreous hemorrhage were studied retrospectively. Eyes with postoperative complications were excluded.