The subject application relates to methods of treatment of peripheral vascular disease (PVD) as well as ischemic osteonecrosis, peritoneal ischemia, chronic ocular disease, macular degeneration, or diabetic retinopathy, comprising administering a therapeutically effective amount of a trans carotenoid. The invention also relates to the use of such carotenoids as pretreatments for mammals at risk of an ischemic event.
