Blurry Vision and Floaters in One Eye: Causes and Solutions - Ophthalmology

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Blurred vision in one eye and floaters?


Hello, Doctor He: During a recent routine eye examination, I discovered that my left eye has blurred vision.
Even after adjusting the prescription, the issue persists.
The optometrist mentioned that my astigmatism has increased by 100 degrees.
During the vision test, I noticed double vision when looking at light sources, although I do not experience this in daily life; I only feel the blurriness, similar to myopia, as if there is a layer of fog in front of me.
When there is light, I see a small floaters.
I have already undergone a dilated fundus examination by an ophthalmologist, but no significant abnormalities were found.
Wearing glasses provides clearer vision, but it feels like I should have 20/20 vision, yet it only feels like 20/50.
I would like to know if this could be a neurological issue.
Thank you.

Mr. Huang, 20~29 year old female. Ask Date: 2017/08/03

Dr. He Jianxian reply Ophthalmology


Based on your description, it is difficult to determine if there are any other issues.
If you can achieve a visual acuity of 0.8 or better with the new prescription, and there are no abnormalities in the retina, I believe there should not be any significant problems.

Reply Date: 2017/08/03

More Info


Hello! Based on your description, it seems you are experiencing a combination of blurry vision, floaters, and possibly some visual disturbances such as flashes or double vision in your left eye. These symptoms can be concerning, especially when they persist despite corrective measures like adjusting your glasses. Let’s break down the potential causes and solutions for your situation.


Possible Causes
1. Vitreous Detachment: One common cause of floaters and flashes is vitreous detachment, which occurs when the gel-like substance in the eye (the vitreous) begins to pull away from the retina. This can lead to the perception of floaters and flashes of light, especially in the peripheral vision. While this is often a benign condition, it can sometimes lead to more serious issues like retinal tears or detachment.

2. Retinal Issues: Although your eye examination did not reveal significant abnormalities, it’s essential to consider that some retinal conditions may not be immediately apparent. Conditions such as retinal tears or early signs of retinal detachment can cause blurry vision and visual disturbances. Regular follow-ups with your eye care professional are crucial.

3. Refractive Errors: You mentioned that your vision feels like it’s only at 0.5 despite corrective lenses that should provide 1.0 vision. This discrepancy could be due to uncorrected refractive errors, such as myopia (nearsightedness) or astigmatism. It’s also possible that the prescription needs further adjustment or that there are other underlying issues affecting your vision.

4. Neurological Factors: While less common, neurological issues can also manifest as visual disturbances. Conditions affecting the optic nerve or pathways in the brain can lead to symptoms like blurry vision or double vision. However, these are typically accompanied by other neurological signs.

5. Eye Fatigue or Strain: Prolonged screen time or focusing on near objects can lead to eye strain, which may cause temporary blurriness or discomfort. This is often exacerbated by inadequate lighting or improper ergonomics while working.


Solutions and Recommendations
1. Regular Eye Exams: Continue to have regular check-ups with your eye care provider. If your symptoms persist or worsen, don’t hesitate to seek a second opinion or request more comprehensive testing, such as optical coherence tomography (OCT) or visual field testing.

2. Manage Eye Strain: If you spend a lot of time on screens, practice the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. Ensure your workspace is well-lit and consider using artificial tears to alleviate dryness.

3. Monitor Symptoms: Keep a log of your symptoms, noting when they occur and any potential triggers. This information can be valuable for your eye doctor in diagnosing the issue.

4. Consider Visual Therapy: If your symptoms are related to eye strain or coordination issues, vision therapy might be beneficial. This is especially relevant if you experience double vision.

5. Stay Informed: Educate yourself about your symptoms and potential conditions. Understanding what you’re experiencing can help reduce anxiety and empower you to seek appropriate care.

6. Consult a Specialist: If you suspect a neurological issue, consider consulting a neurologist for further evaluation. They can perform tests to rule out any underlying conditions affecting your vision.


Conclusion
Your symptoms of blurry vision and floaters can arise from various causes, ranging from benign to more serious conditions. It’s crucial to maintain open communication with your eye care provider and advocate for your health. If your symptoms continue to impact your daily life, don’t hesitate to seek further evaluation. Remember, early detection and intervention are key to preserving your vision and overall eye health. Take care!

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