title: Modern cataract surgery: unfinished business and unanswered questions. Foreword.
authors: Alan N
authors: AN
authors: Carlson
mesh_terms: D002387:Cataract Extraction / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000266:history; D009885:Ophthalmology / Q000266:history; D014481:United States