title: Subscleral goniotrepanation in primary glaucoma.
mesh_terms: D002387:Cataract Extraction; D005069:Evaluation Studies as Topic; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D011446:Prospective Studies; D014129:Trabecular Meshwork / Q000601:surgery*; D014207:Trephining