title: Bulging iris-lens in cataract extraction.
abstract: The basic cause of iris-lens diaphragm bulging during cataract extraction is thought to be increased choroidal venous congestive pressure. This is shown to be controlled by hyperventilation under general anesthesia.
mesh_terms: D000768:Anesthesia, General / Q000009:adverse effects; D002387:Cataract Extraction; D006801:Humans; D006985:Hyperventilation / Q000150:complications; D007498:Iris; D007908:Lens, Crystalline