Common Misdiagnoses of Amaurosis Fugax

Amaurosis fugax is a rare condition where blood flow to the retina in the eye is temporarily blocked, causing vision loss in the affected eye. Vision returns once the blood flow resumes. The main symptom of the condition is the sudden transient vision loss in the affected eye. Patients describe the sensation as a dark shade coming down over the eye. One suspected cause for amaurosis fugax is a carotid artery disease, in which a piece of plaque escapes from a blockage in the carotid artery and travels to the artery that feeds the retina. Plaque is a hard substance consisting of fat, cholesterol and other material that builds up in arterial walls.

Those with a higher risk factor for amaurosis fugax include those who suffer atherosclerosis attributable to diabetes, heart disease, high blood pressure and high cholesterol. Those who have a smoking habit are also at a higher risk.

Although the condition does not lead to permanent blindness, it is an indication of atherosclerosis, which can lead to a stroke.

Common Misdiagnoses of Amaurosis Fugax

Diagnosis of amaurosis fugax includes a test of the affected eye in addition to a neurological examination. During the eye exam, the doctor may detect a red spot where the blockage is present in the retinal artery. An ultrasound of the carotid or a MRA scan may be ordered to evaluate any blockage in the carotid artery. As the condition is an indication of atherosclerosis, a cholesterol and glucose (blood sugar) test should be done also.

Treatment will depend on the severity of the blockage in the carotid artery. The main goal of the treatment is to diminish the possibility of a stroke. Blood thinners, such as aspirin and warfarin, may be prescribed to lower that risk. Additionally, the doctor may suggest diet changes as well as prescribe medication to lower cholesterol levels and control the blood pressure. Regular check-ups may be needed to monitor the health of the carotid artery.

As amaurosis fugax is an indicator of atherosclerosis, any misdiagnosis may delay treatment of the underlying condition. Occasionally amaurosis fugax is mistaken for cardiac emboli or retinal detachment. In these cases, the wrong treatments may be prescribed and the atherosclerosis remain undiagnosed and untreated.

Talk to a Lawyer

A misdiagnosis of amaurosis fugax as an indicator of atherosclerosis can lead to a stroke or worse. If this has happened to you, you have a cause of action for medical malpractice. You should consult with a lawyer to discuss possible compensation that includes medical costs and lost wages.