title: The direction of glaucoma surgery: why improvements are occurring so slowly.
authors.forename: G
authors.initials: G
authors.lastname: Spaeth
mesh_terms: D018463:Filtering Surgery / Q000639:trends*; D005901:Glaucoma / Q000209:etiology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D009798:Ocular Hypertension / Q000150:complications; D009901:Optic Nerve Diseases / Q000209:etiology