Patient receiving retinal scan during comprehensive eye exam

Understanding the Causes of Blurry Vision in One Eye

Blurry vision can occur for a variety of reasons, but when it affects only one eye, it may raise specific concerns. While many causes are minor or temporary, persistent or sudden blurry vision in one eye can signal an underlying condition that requires prompt attention from an eye care specialist.

Recognizing when to seek professional care is key to safeguarding your eye health. Explore Grene Vision Group’s comprehensive guide to the potential causes of blurry vision in one eye and learn when it’s time to consult an expert for an in-depth evaluation. 

Accompanying Symptoms of Blurry Vision in One Eye

Blurry vision in one eye is often accompanied by additional symptoms that can provide valuable clues about its cause. Identifying these signs can help determine whether immediate medical care is necessary. Symptoms can vary in severity and may develop gradually over time or appear suddenly. If you experience any of the following symptoms along with blurry vision, it’s important to schedule an appointment with an eye doctor promptly.

  • Headaches: Frequent or intense headaches could indicate conditions like migraines, eye strain, or other vision-related problems. 

  • Eye Pain: Persistent discomfort or sharp pain in the affected eye may signal inflammation, an injury, or an infection that requires medical attention. 

  • Light Sensitivity: Photophobia, or sensitivity to light, is often associated with dry eye, corneal abrasions, or eye infections. 

  • Floaters or Flashes of Light: The sudden presence of floaters or flashes could be a sign of retinal detachment, a condition that needs urgent care. 

  • Tearing or Discharge: Excessive tearing or sticky discharge might suggest conjunctivitis or other conditions such as dry eye syndrome. 

  • Redness: Red or irritated eyes often accompany inflammation or infections like conjunctivitis or uveitis. 

  • Halos or Visual Distortion: Noticing halos around lights or visual distortions can indicate issues like cataracts or corneal irregularities. 

Critical Conditions That Demand Immediate Attention from an Eye Doctor

While blurry vision in one eye is not always an emergency, certain instances signal the need for urgent medical care. Recognizing these serious conditions can make all the difference in protecting your vision and receiving timely treatment. Below are key conditions associated with blurry vision in one eye that require prompt attention from an eye care professional.

Corneal Abrasion and Scratch

The cornea is the transparent, dome-shaped surface at the front of your eye that focuses light and serves as a protective barrier against debris. Its exposed position makes it vulnerable to scratches during daily activities, such as applying contact lenses or rubbing your eyes.

A corneal abrasion can cause discomfort, sensitivity to light, and blurry vision. These injuries may result from foreign particles entering the eye, contact lens overuse, or accidental trauma. Without treatment, a scratched cornea can lead to complications like infections or corneal ulcers, which could permanently impact your vision. If you suspect a corneal abrasion, schedule an appointment with your eye doctor immediately.

Retinal Detachment

The retina, a light-sensitive tissue at the back of your eye, is essential for processing visual information. Retinal detachment occurs when the retina separates from its normal position, cutting off its blood supply and impairing its function. This condition can develop suddenly or gradually, depending on the cause.

Early warning signs of retinal detachment include flashes of light, a sudden increase in floaters, or shadows appearing in your field of vision. In some cases, there may be no symptoms before significant vision loss occurs. Those at higher risk include individuals with:

  • High levels of trauma 

  • Ocular degenerative conditions 

  • Uncontrolled diabetes 

  • Chronic inflammation 

  • Recent retinal surgery 

  • Family history of this condition 

If you notice any symptoms of retinal detachment, seek immediate medical attention. Timely intervention is critical to preserving your vision and preventing irreversible damage.

Angle-Closure Glaucoma

Angle-closure glaucoma is a rare but serious condition that occurs when the eye’s drainage system becomes suddenly blocked, causing intraocular pressure to rise rapidly. This dramatic increase in pressure can damage the optic nerve and lead to permanent vision loss within hours.

Symptoms of angle-closure glaucoma often include severe eye or head pain, blurred vision, halos around lights, and nausea. Unlike the slower progression of open-angle glaucoma, this condition is a medical emergency that requires immediate care from an eye specialist.

Stroke

Blurry vision in one or both eyes can sometimes indicate a stroke, a life-threatening event in which blood flow to the brain is disrupted. This lack of oxygen can impact vision and other bodily functions. In the U.S., a stroke occurs approximately every 40 seconds, making it one of the most common medical emergencies.

If blurry vision is accompanied by any of the following symptoms, call 911 immediately:

  • Weakness or numbness on one side of the body 

  • Confusion 

  • Trouble walking 

  • Blurry vision 

Non-Urgent Causes of Blurry Vision

Blurry vision doesn’t always signal a medical emergency. It can arise from various factors, including natural vision changes or manageable conditions. While some issues may resolve on their own or with basic treatment, others could benefit from an evaluation by an eye care professional to ensure your eye health is well-maintained.

Age-Related Vision Changes

Gradual vision changes are a normal part of aging and are often due to refractive errors like nearsightedness, farsightedness, or astigmatism. These conditions alter the way light is focused on the retina, leading to blurry vision that can be corrected with glasses, contact lenses, or other treatments.

  • Astigmatism occurs when the cornea or lens has an irregular shape, preventing light from focusing evenly on the retina. This leads to blurred or distorted vision at multiple distances and can cause eye strain or headaches. 

  • Nearsightedness (myopia) happens when the eyeball is too long or the cornea has too much curvature, making it difficult to see distant objects clearly. It often develops during childhood or adolescence. 

  • Farsightedness (hyperopia) causes nearby objects to appear blurry while distant vision remains clear. It results from a shorter eyeball or a flatter cornea, which causes light to focus behind the retina. 

If blurry vision is affecting your daily activities, a complete eye exam at Grene Vision Group can help identify the cause and provide personalized solutions, such as corrective lenses or other treatments.

Dry Eye Syndrome

Dry eye syndrome affects roughly 16 million Americans and occurs when the eyes fail to produce enough tears or when tears evaporate too quickly. This condition can lead to irritation, discomfort, and, in some cases, blurry vision.

Dry eye may be triggered by factors like aging, extended screen use, certain medications, or environmental conditions such as wind or dry air. While over-the-counter artificial tears can provide temporary relief, they may not address the underlying cause of the problem. By consulting an eye doctor at Grene Vision Group, you can receive a tailored treatment plan to manage your dry eye effectively, restoring both comfort and clear vision.

Medication-Related Vision Changes

Certain medications can lead to blurry vision as a side effect. Common examples include antihistamines, corticosteroids, antimalarials, and antipsychotics.

Individuals with pre-existing conditions like glaucoma or diabetes may be more prone to experiencing medication-related vision changes. If you suspect your medication is affecting your vision, consult your eye doctor or pharmacist for guidance. They can help determine if an alternative medication or an adjustment to your current prescription is necessary. Avoid discontinuing any prescribed medication without professional advice to ensure your health and safety.

Macular Degeneration

Macular degeneration is a progressive condition that primarily affects central vision. It is more common with age and impacts approximately 11 million Americans. There are two primary types of macular degeneration: dry and wet. 

  • Dry Macular Degeneration: This is the more prevalent form, occurring when the light-sensitive cells in the macula gradually deteriorate. It often leads to blurry central vision and difficulty seeing in low-light conditions. 

  • Wet Macular Degeneration: In 10% to 15% of cases, dry macular degeneration progresses to the wet form. This occurs when abnormal blood vessels grow and leak fluid or blood into the retina, causing rapid vision loss, often starting with blurry or distorted central vision in one eye. 

Visit Grene Vision Group for Comprehensive Blurry Vision Care

Blurry vision in one eye can have many causes, from mild and temporary conditions to more serious issues that require immediate attention. Regardless of the underlying cause, consulting an eye care professional promptly is essential to safeguard your vision and address any potential concerns. Early diagnosis and treatment play a crucial role in preventing complications and maintaining long-term eye health.

At Grene Vision Group, our skilled team of eye care specialists is committed to uncovering the cause of your blurry vision and providing customized treatment options tailored to your needs. With expert care and timely intervention, we’ll help you restore clarity to your vision and protect your eye health for the future. If you’re experiencing blurry vision in one eye or have questions about your eye health, schedule a comprehensive eye exam with Grene Vision Group today.

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