Other name : Swelling eyes. angioneurotic oedema Definition : The development of large welts below the surface of the skin especially around the eyes and lips . The welts may also affect the hands, feet and throat . The condition is associated with allergies and histamine release. Causes, Incidence and Risk factors : Angioedema is a swelling similar to urinary hives but the swelling is beneath the skin other than on the surface. .