title: Convergence and retraction nystagmus in hydrocephalus due to shunt malfunction.
mesh_terms: D002557:Cerebrospinal Fluid Shunts; D005133:Eye Movements; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000209:etiology*; D010537:Peritoneum; D011183:Postoperative Complications / Q000209:etiology