title: Glaucoma laser trial.
mesh_terms: D002986:Clinical Trials as Topic; D005902:Glaucoma, Open-Angle / Q000188:drug therapy / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects; D053685:Laser Therapy; D013999:Timolol / Q000627:therapeutic use; D014130:Trabeculectomy
chemical_list: D013999:Timolol