title: Non-penetrating glaucoma surgery: the state of play.
authors.affiliation: Glaucoma Research Unit, Moorfields Eye Hospital, London, UK.
authors.forename: J C
authors.initials: JC
authors.lastname: Tan
authors.forename: R A
authors.initials: RA
authors.lastname: Hitchings
mesh_terms: D018463:Filtering Surgery / Q000009:adverse effects / Q000191:economics / Q000379:methods*; D005901:Glaucoma / Q000191:economics / Q000601:surgery*; D017048:Health Care Costs; D006801:Humans; D012590:Sclera / Q000601:surgery; D014794:Visual Fields