Stimulation of the retina by radium.
D000818:Animals; D002642:Chick Embryo; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011871:Radiology / Q000266:history*; D012160:Retina / Q000528:radiation effects*; D014965:X-Rays / Q000266:history