What Causes Blurry Vision in One Eye?

Symptoms That May Accompany Blurry Vision in One Eye

Blurry vision in one eye is often paired with additional symptoms that can help pinpoint its underlying cause. Recognizing these accompanying signs is essential in determining whether you need urgent medical attention. Symptoms may vary in intensity and onset, developing either gradually or suddenly. If you experience any of the following symptoms alongside blurry vision, it’s a good idea to consult an eye doctor promptly.

• Headaches: Recurring or severe headaches can indicate issues like migraines, eye strain, or other vision-related concerns. 

• Eye Pain: Persistent discomfort or sharp pain in the affected eye may be a sign of inflammation, an injury, or an infection. 

• Light Sensitivity: Sensitivity to light, also known as photophobia, is commonly associated with conditions such as dry eye, corneal abrasions, or infections. 

• Floaters or Flashes of Light: A sudden appearance of floaters or flashes can suggest a more serious issue, such as retinal detachment. 

• Tearing or Discharge: Excessive tearing or sticky discharge might point to infections like conjunctivitis or conditions such as dry eye syndrome. 

• Redness: Red or bloodshot eyes are often signs of irritation, inflammation, or underlying issues like uveitis or conjunctivitis. 

• Halos or Visual Distortion: Seeing halos around lights or experiencing distorted vision could be linked to cataracts or corneal abnormalities. 

Serious Conditions That Require Immediate Attention from an Eye Doctor

Blurry vision in one eye isn’t always a cause for concern, but there are instances where it signals a medical emergency. Recognizing these situations is vital for preserving your vision and receiving prompt treatment. Below are some critical conditions associated with blurry vision in one eye that require urgent care.

Corneal Abrasion and Scratch

The cornea, the transparent dome-shaped layer at the front of your eye, plays a key role in focusing light and protecting the eye from debris. Its exposed nature makes it prone to scratches, which can occur during routine activities such as inserting contact lenses or rubbing your eyes.

A corneal abrasion can cause discomfort, sensitivity to light, and blurred vision. These injuries may result from foreign particles, overuse of contact lenses, or accidental trauma. If left untreated, corneal abrasions can develop into infections or corneal ulcers, posing a threat to your vision. If you suspect a corneal abrasion, see your eye doctor promptly.

Retinal Detachment

The retina is a vital tissue layer at the back of the eye responsible for converting light into visual signals. Retinal detachment occurs when the retina separates from its normal position, cutting off its blood supply and impairing vision. This condition may develop suddenly or over time.

Common warning signs of retinal detachment include flashes of light, an increase in floaters, or shadows across your field of vision. In some cases, it can occur without symptoms. People at higher risk include those with:

• High levels of trauma 

• Ocular degenerative conditions 

• Uncontrolled diabetes 

• Chronic inflammation 

• Recent retinal surgery 

• Family history of this condition 

If you experience symptoms of retinal detachment, seek immediate medical care. Prompt treatment is essential to prevent permanent vision loss.

Angle-Closure Glaucoma

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

Symptoms of angle-closure glaucoma include intense eye or head pain, blurry vision, halos around lights, and nausea. Unlike open-angle glaucoma, which develops gradually, angle-closure glaucoma is a medical emergency requiring immediate attention.

Stroke

In the U.S., someone experiences a stroke every 40 seconds. Blurry vision in one or both eyes can sometimes indicate a stroke, a life-threatening event where blood flow to the brain is disrupted. This lack of oxygen can impair vision and other bodily functions.

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 

Common Causes of Blurry Vision That Are Not Emergencies

Blurry vision doesn’t always indicate an urgent medical issue. It can result from a variety of factors, including age-related changes or manageable conditions. While some cases resolve on their own or with simple treatments, others may benefit from an evaluation by an eye care professional to ensure your vision is properly protected.

Age-Related Vision Changes

As we age, it’s normal to experience gradual changes in vision caused by refractive errors such as nearsightedness, farsightedness, or astigmatism. These conditions affect how light focuses on the retina, often leading to blurry vision that can typically be corrected with glasses, contact lenses, or other treatments.

• Astigmatism results from an irregularly shaped cornea or lens, which prevents light from focusing properly on the retina. This condition can cause blurred or distorted vision at multiple distances and may lead to eye strain or headaches. 

• Nearsightedness (myopia) occurs when the eyeball is too long or the cornea is overly curved, making distant objects appear blurry. This condition often develops during childhood or adolescence. 

• Farsightedness (hyperopia) has the opposite effect, making nearby objects appear blurry while distant vision remains clear. It’s caused by a shorter eyeball or a flatter cornea, leading to light focusing behind the retina. 

If blurry vision is impacting your quality of life, a comprehensive eye exam at Nationwide Vision can identify the cause and provide a tailored solution, such as a prescription for corrective lenses or other treatments.

Dry Eye Syndrome

Dry eye syndrome is a common condition that affects roughly 16 million Americans. It occurs when your eyes don’t produce enough tears or when tears evaporate too quickly, leading to irritation, discomfort, and sometimes blurry vision.

Factors contributing to dry eye include aging, prolonged screen time, certain medications, and environmental conditions such as dry or windy climates. While over-the-counter artificial tears can offer temporary relief, they may not address the root cause of the problem. By visiting an eye doctor at Nationwide Vision, you can receive a personalized treatment plan that targets the underlying cause of your dry eye, helping to restore comfort and clear vision.

Vision Changes Caused by Medications

Certain medications can cause blurry vision as a side effect. Drugs commonly associated with vision issues include antihistamines, corticosteroids, antimalarials, and antipsychotics.

Individuals with conditions like glaucoma or diabetes may be more susceptible to medication-related vision changes. If you suspect your medication is causing blurry vision, consult your eye doctor or pharmacist. They can evaluate your situation, suggest safer alternatives, or adjust your treatment plan as needed. Avoid stopping any prescribed medication without professional guidance to ensure your health remains protected.

Macular Degeneration

Macular degeneration is a condition that affects central vision and becomes more common with age, impacting approximately 11 million Americans. There are two main types: dry and wet macular degeneration.

• Dry Macular Degeneration: This is the more common form and occurs when the macula’s light-sensitive cells gradually deteriorate. It can cause blurry central vision and make it difficult to see in low light. 

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

Visit Nationwide Vision for Expert Blurry Vision Treatment

Blurry vision in one eye can result from a variety of factors, ranging from temporary and minor issues to more serious conditions requiring urgent care. Whatever the cause, seeking prompt evaluation by an eye doctor is crucial to protect your vision and address potential concerns. Early detection and treatment can help prevent complications and ensure the long-term health of your eyes.

At Nationwide Vision, our experienced team of eye care professionals is dedicated to identifying the root cause of your blurry vision and creating personalized treatment plans that suit your unique needs. With timely intervention and expert guidance, we’ll help you regain clarity and maintain healthy vision for years to come. If you’re experiencing blurry vision in one eye or have any concerns about your eye health, schedule a comprehensive eye exam with Nationwide Vision today.

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