title: Vasospastic transient monocular visual loss: effect of treatment with different doses of nifedipine.
abstract: Transient monocular visual loss (TMVL) usually is due to hypoperfusion of the optic nerve or retinal circulation. After the exclusion of thromboembolic and carotid artery diseases, retinal vasospasm should be considered as an underlying cause of TMVL. We report a patient with an increasing number of transient attacks of unilateral blindness. Vasospasm was confirmed as the etiology by fundus photography during an attack. Nifedipine 10 mg/d decreased the severity of the visual loss and the number of attacks. The patient was relieved of symptoms entirely with a nifedipine dose of 20 mg/d.
authors.affiliation: Department of Ophthalmology, Oulu University Hospital, Oulu, Finland.
authors.forename: Hanna
authors.initials: H
authors.lastname: Pitkänen
authors.forename: Ville
authors.initials: V
authors.lastname: Saarela
mesh_terms: D000328:Adult; D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D009460:Neurologic Examination; D009543:Nifedipine / Q000627:therapeutic use*; D020301:Vasospasm, Intracranial / Q000150:complications*; D014786:Vision Disorders / Q000188:drug therapy* / Q000209:etiology*; D014794:Visual Fields / Q000187:drug effects
chemical_list: D002121:Calcium Channel Blockers; D009543:Nifedipine