title: Blockage of a Krupin valve tube.
authors.forename: P L
authors.initials: PL
authors.lastname: Krawitz
mesh_terms: D018463:Filtering Surgery; D005901:Glaucoma / Q000601:surgery; D006801:Humans; D007429:Intraocular Pressure; D015814:Ocular Hypotension / Q000209:etiology / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology / Q000601:surgery; D019736:Prostheses and Implants / Q000009:adverse effects*; D011475:Prosthesis Failure; D012086:Reoperation