title: Introduction.
authors.forename: M
authors.initials: M
authors.lastname: Matsumura
mesh_terms: D005128:Eye Diseases / Q000601:surgery*; D006801:Humans; D013508:Ophthalmologic Surgical Procedures / Q000639:trends*; D011183:Postoperative Complications / Q000517:prevention & control*; D011379:Prognosis