Amaurosis fugax is a temporary loss of vision in one or both eyes due to a lack of blood flow to the retina. The retina is the light-sensitive layer of tissue at the back of the eyeball.
Transient monocular blindness; Transient monocular visual loss; TMVL; Transient monocular visual loss; Transient binocular visual loss; TBVL; Temporary visual loss - amaurosis fugax
Amaurosis fugax is not itself a disease. Instead, it is a sign of other disorders. Amaurosis fugax can occur from different causes. One cause is when a blood clot or a piece of plaque blocks an artery in the eye. The blood clot or plaque usually travels from a larger artery, such as the carotid artery in the neck or an artery in the heart, to an artery in the eye.
Plaque is a hard substance that forms when fat, cholesterol, and other substances build up in the walls of arteries. Risk factors include:
Amaurosis fugax can also occur because of other disorders such as:
Symptoms include the sudden loss of vision in one or both eyes. This usually lasts for a few seconds to several minutes. Afterward, vision returns to normal. Some people describe the loss of vision as a gray or black shade coming down over the eye.
Treatment of amaurosis fugax depends on its cause. When amaurosis fugax is due to a blood clot or plaque, the concern is to prevent a stroke. The following can help prevent a stroke:
Your doctor may also recommend:
If a large part of the carotid artery appears blocked, carotid endarterectomy surgery is done to remove the blockage. The decision to do surgery is also based on your overall health.
Hugh Taylor practices in Melbourne, Australia. Taylor is rated as an Elite expert by MediFind in the treatment of Amaurosis Fugax. He is also highly rated in 10 other conditions, according to our data. His top areas of expertise are Conjunctivitis (Pink Eye), Trachoma, Amaurosis Fugax, Cataract Removal, and Corneal Transplant.
Rupert Bourne practices in Cambridge, United Kingdom. Bourne is rated as an Elite expert by MediFind in the treatment of Amaurosis Fugax. He is also highly rated in 10 other conditions, according to our data. His top areas of expertise are Amaurosis Fugax, Glaucoma, Ocular Hypertension (OHT), Pigment-Dispersion Syndrome, and Cataract Removal.
Clare Gilbert practices in London, United Kingdom. Gilbert is rated as an Elite expert by MediFind in the treatment of Amaurosis Fugax. She is also highly rated in 23 other conditions, according to our data. Her top areas of expertise are Congenital Hyperinsulinism, Amaurosis Fugax, Low Blood Sugar, Retinopathy of Prematurity, and Cataract Removal.
Amaurosis fugax increases your risk for stroke.
Contact your provider if any vision loss occurs. If symptoms last longer than a few minutes or if there are other symptoms with the vision loss, seek medical attention right away.
Summary: The study will begin with an explanatory/training session where individuals with low vision will learn to use the V-NAV (Vortant NAVigation tool) indoor navigation app, and will have the opportunity to try it for a few representative tasks. The main activity includes a take-home trial, an extended unstructured period to emulate the post-purchase experience of users, during which participants will ...
Summary: The overall goal of this project funded by the Foundation Fighting Blindness is to characterize the natural history of disease progression in patients with USH2A related retinal degeneration associated with congenital hearing loss (Usher syndrome type 2a) or non-syndromic retinitis pigmentosa (RP39).
Published Date: May 02, 2022
Published By: Amit M. Shelat, DO, FACP, FAAN, Attending Neurologist and Assistant Professor of Clinical Neurology, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Biller J, Schneck MJ, Ruland S. Ischemic cerebrovascular disease. In: Jankovic J, Mazziotta JC, Pomeroy SL, Newman NJ, eds. Bradley and Daroff's Neurology in Clinical Practice. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 65.
Brown GC, Sharma S, Brown MM. Ocular ischemic syndrome. In: Sadda SVR, Sarraf D, Freund KB, et al, eds. Ryan's Retina. 7th ed. Philadelphia, PA: Elsevier; 2023:chap 61.
Meschia JF, Bushnell C, Boden-Albala B, et al. Guidelines for the primary prevention of stroke: a statement for healthcare professionals from the American Heart Association/American Stroke Association. Stroke. 2014;45(12):3754-3832. PMID: 25355838 pubmed.ncbi.nlm.nih.gov/25355838/.