title: Primary valve malfunction of the Krupin Eye Valve with disk.
authors.forename: H S
authors.initials: HS
authors.lastname: Weiss
mesh_terms: D003228:Conjunctiva; D018463:Filtering Surgery; D005901:Glaucoma / Q000601:surgery; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology / Q000601:surgery; D019736:Prostheses and Implants / Q000009:adverse effects*; D011475:Prosthesis Failure; D012086:Reoperation