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Learn about the possible causes of sudden or partial vision loss, such as clots, migraines, glaucoma, and rare conditions. Find out how to prevent, diagnose, and treat these problems and restore your sight.
Nov 3, 2021 · Temporary blindness can occur for a variety of reasons — from standing up too quickly to underlying conditions like brain tumors. If you don’t know why you are experiencing temporary blindness or other vision problems, it’s best to speak with your eye doctor as soon as you can.
- Anna Barden
Jan 27, 2021 · Temporary vision loss, or amaurosis fugax, can be a warning sign of strokes and other health risks. Learn about symptoms, treatments and prevention options.
- Tom Mangan
- Overview
- Temporary loss of vision in one eye
- What causes a temporary blind eye?
- Other possible causes of temporary blindness
- How is sudden loss of vision treated?
- What are the risk factors for blindness in one eye?
- Takeaway
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Sudden blindness (total or near-total vision loss) in one eye is a medical emergency.
In many instances, you have a short window of time for diagnosis and treatment to avoid permanent blindness. Temporary loss of vision may also be a warning sign of a serious problem, such as stroke.
Temporary loss of vision can occur in one eye and sometimes both eyes. It’s usually a symptom of an underlying condition that’s causing insufficient blood flow to the eye, such as a blood clot.
The vision loss can last from seconds to minutes. It’s referred to in medical terms as:
•amaurosis fugax
•temporary visual loss
•episodic blindness
•transient monocular visual loss
The most common cause of blindness in one eye is reduced blood flow.
The carotid arteries in your neck bring blood to your eyes and brain from your heart.
Sometimes plaque (fatty deposits) builds up on the walls of these blood vessels, reducing the amount of blood that can pass through them. Small pieces of this plaque can even break off and block blood flow.
The narrowing or blocking of blood vessels bringing blood to your eye can cause temporary blindness.
A blood clot could also cause blockage. A blood clot is a gel-like clump of blood that has coagulated from liquid to a semi-solid state.
If a blood clot blocks your retinal artery, it’s referred to as either a branch retinal artery occlusion or a central retinal artery occlusion.
Temporary vision loss (total or partial) can also be the result of:
•migraine headaches
•sickle cell anemia, also referred to as sickle cell disease (inherited blood condition)
•acute angle-closure glaucoma (sudden rise in eye pressure)
•polyarteritis nodosa (blood vessel disease)
•optic neuritis (optic nerve inflammation)
Treating temporary loss of vision in one eye starts with the identification of the underlying medical condition.
For example, if blood clots triggered the blind eye, healthcare providers concerned about the possibility of a stroke may recommend:
•medications to thin your blood, such as warfarin (Coumadin) or aspirin
•medications to lower your blood pressure, such as beta-blockers, angiotensin-converting enzyme (ACE) inhibitors, angiotensin-II receptor antagonists, calcium channel blockers, and thiazides
•surgery, such as a carotid endarterectomy, to clear the plaque in your carotid arteries
Your healthcare provider may also recommend lifestyle changes, including:
The risk for temporary vision loss due to reduced blood flow is higher for people who have a history of:
•high blood pressure (hypertension)
•heart disease
•diabetes
•multiple sclerosis (MS)
•high cholesterol
Loss of vision in one eye is often the result of reduced blood flow to the eye from the heart. It’s typically a symptom of an underlying condition.
A healthcare provider can identify the condition affecting your eye and recommend an appropriate treatment plan.
Sudden vision loss in one eye can be a sign of reduced blood flow to the eye, often caused by plaque or clots in the carotid arteries. Learn about the potential causes, symptoms, and treatments of temporary blindness in one eye and when to seek emergency help.
Feb 19, 2023 · Sudden vision loss means a swift, usually unexpected, loss of the ability to see well or to see at all. It can happen in seconds, minutes or even over a few days. It can happen in one eye or both eyes. You can lose all vision or vision in one part of your visual field, such as a loss of central vision.
Nov 14, 2022 · Blindness is the inability to see or a lack of vision. It can result from infections, accidents, genetic conditions and other diseases. Learn about the symptoms, diagnosis and treatment of different types of blindness.
Apr 8, 2021 · Learn about the possible causes and symptoms of temporary vision loss, such as ischemic optic neuropathy and photokeratitis. Find an ophthalmologist and get tips for eye health and safety.
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related to: Temporary BlindnessLearn How Genetic Testing Can Help to Diagnose Your Patients, Get Started Here! Different Inherited Retinal Dystrophies Disease May Be Present With Similar Signs
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