Sudden Blurriness in Right Eye: Causes and Concerns Explained - Ophthalmology

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Sudden blurriness in the right eye?


Hello Doctor: In the past couple of days, I've been experiencing sudden blurriness in my right eye when looking at things, and it takes several blinks for my vision to return to normal.
I would like to ask you what might be wrong with my eye.
I'm quite worried and would appreciate your guidance.
Thank you.

yuna, 30~39 year old female. Ask Date: 2015/12/09

Dr. Wang Zhishun reply Ophthalmology


Hello: If blinking can restore function, it is mostly an issue related to the external eye (not involving the cornea).
However, it is still recommended that you get it checked when you have the time.

Reply Date: 2015/12/09

More Info


Sudden blurriness in one eye can be concerning and may indicate a variety of underlying issues. Based on your description, it seems that you are experiencing intermittent blurriness in your right eye, which improves after blinking several times. This symptom can arise from several causes, and understanding them can help alleviate your concerns.

1. Dry Eye Syndrome: One of the most common reasons for sudden blurriness, especially if it improves with blinking, is dry eye syndrome. This condition occurs when your eyes do not produce enough tears or when the tears evaporate too quickly. Blinking helps spread the tears across the surface of the eye, temporarily improving vision. Factors such as prolonged screen time, environmental conditions (like wind or air conditioning), and certain medications can contribute to dry eyes.

2. Corneal Issues: Problems with the cornea, such as abrasions or infections (like keratitis), can also lead to sudden blurriness. If the cornea is damaged or inflamed, it can affect your vision. This is often accompanied by discomfort, redness, or sensitivity to light.

3. Refractive Errors: Changes in your vision can also be due to uncorrected refractive errors, such as astigmatism, hyperopia, or myopia. If you have recently changed your prescription glasses or contact lenses, or if you have not had your vision checked in a while, this could be a factor.

4. Vitreous Detachment: As we age, the vitreous gel inside the eye can shrink and pull away from the retina, leading to symptoms such as floaters or flashes of light. While this is often benign, it can sometimes lead to more serious conditions like retinal tears or detachment, which require immediate medical attention.

5. Retinal Issues: Conditions affecting the retina, such as retinal tears or detachments, can also cause sudden blurriness. These conditions are serious and can lead to permanent vision loss if not treated promptly. Symptoms may include a sudden increase in floaters, flashes of light, or a shadow over your vision.

6. Neurological Issues: Although less common, sudden changes in vision can sometimes be related to neurological conditions, such as migraines or even more serious issues like a stroke. If you experience other symptoms such as headaches, weakness, or difficulty speaking, seek immediate medical attention.

Given your symptoms, it is crucial to consult an eye care professional as soon as possible. They can perform a comprehensive eye examination, including checking your visual acuity, examining the front and back of your eye, and assessing your tear production. Early diagnosis and treatment are essential, especially if there is a risk of retinal detachment or other serious conditions.

In the meantime, consider the following tips to help manage your symptoms:
- Stay Hydrated: Drink plenty of water to help maintain tear production.

- Take Breaks: If you spend a lot of time on screens, follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.

- Use Artificial Tears: Over-the-counter lubricating eye drops can help relieve dryness and improve comfort.

- Avoid Eye Strain: Ensure that your workspace is well-lit and that you are using appropriate eyewear if needed.

In conclusion, while there are several potential causes for the sudden blurriness in your right eye, it is essential to seek professional evaluation to determine the exact cause and appropriate treatment. Your vision is vital, and addressing any issues promptly can help preserve your eye health.

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