Then and now--therapy.
D005128:Eye Diseases / Q000209:etiology / Q000266:history* / Q000628:therapy; D005139:Eyeglasses; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008628:Mercury / Q000627:therapeutic use; D009216:Myopia / Q000628:therapy; D012725:Sexual Behavior
D008628:Mercury