Macular Issues: Distorted Vision and Potential Causes - Ophthalmology

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Macular issues


Could the distortion of straight lines that disappears after a while be due to macular edema? In mid-January of this year, I noticed a bright spot in my right eye when I blinked at night.
Later, I used an Amsler grid and found a small dark spot in the upper right quadrant of my central vision, with nearby lines distorted.
About two hours later, the symptoms disappeared.
The next day, I went to an ophthalmologist for a dilated fundus examination and OCT.
The doctor said he didn't see any issues (by that time, I had no symptoms).
I asked if it was macular degeneration, and he said that if there were any lesions, recovery would not be expected.
I was given eye drops to take home.

Then, on the morning of April 9, I woke up and again noticed a bright spot when blinking in my right eye.
I checked the grid and indeed saw distorted lines, but the location was further from the center than last time, and the distortion was smaller.
There was no change in color in that area, and after several hours, the symptoms improved, only noticeable when looking at many lines.

I would like to ask if this symptom is indicative of macular edema or something like central serous chorioretinopathy? (I apologize, this information is from the internet.) Should I continue to observe whether the symptoms completely disappear, and if not, should I go for another examination?

A Nan, 30~39 year old female. Ask Date: 2020/04/09

Dr. He Jianxian reply Ophthalmology


Hello Mr.
A-Nan: Basically, if you have undergone a dilated fundus examination and OCT without any findings, it is likely that there are no significant lesions.
As for why you are experiencing distortion in your visual field despite the absence of lesions, I do not have a suitable explanation.
Dr.
He Jianxian, Nantou Hospital.

Reply Date: 2020/04/09

More Info


Understanding macular issues, particularly those that lead to distorted vision, can be quite complex, as they may stem from various underlying conditions. Based on your description, it seems you are experiencing intermittent visual disturbances, specifically distortion of straight lines and transient bright spots in your vision. These symptoms can indeed be concerning, and while they may resolve on their own, they warrant careful consideration and monitoring.

1. Potential Causes of Distorted Vision: The symptoms you describe, such as seeing straight lines as distorted and experiencing transient bright spots, can be indicative of several conditions affecting the macula, which is the central part of the retina responsible for sharp, detailed vision. One common cause of such symptoms is macular edema, which is the swelling of the macula due to fluid accumulation. This can occur due to various reasons, including diabetic retinopathy, retinal vein occlusion, or even post-surgical changes. However, your symptoms resolving within a few hours and the lack of findings during your eye examination suggest that it may not be a persistent condition.

2. Central Serous Chorioretinopathy (CSCR): Another possibility is central serous chorioretinopathy, a condition where fluid builds up under the retina, leading to visual distortions. This condition often resolves spontaneously, which aligns with your experience of symptoms disappearing after a few hours. However, recurrent episodes can occur, and it is essential to monitor these closely.

3. Importance of Follow-Up: Given that your symptoms have recurred, it is advisable to maintain regular follow-ups with your eye care provider. Even if the symptoms resolve, they can be indicative of underlying issues that may require treatment or monitoring. An OCT (Optical Coherence Tomography) scan is a valuable tool in assessing the health of the macula and can help detect any subtle changes that may not be visible during a standard eye exam.

4. Monitoring Symptoms: It is wise to keep a log of your symptoms, noting when they occur, their duration, and any associated factors (like stress, fatigue, or changes in lighting). This information can be beneficial for your eye care provider in determining the best course of action.

5. When to Seek Immediate Care: If you experience any new symptoms, such as a sudden increase in the number of floaters, flashes of light, or a significant change in vision, you should seek immediate medical attention. These could be signs of more serious conditions, such as retinal detachment.

6. Conclusion: While your symptoms may not currently indicate a severe issue, they should not be ignored. Regular monitoring and follow-up examinations are key to ensuring that any potential problems are caught early. If your symptoms persist or worsen, further diagnostic testing may be warranted to rule out conditions like macular edema or CSCR. Always feel empowered to discuss your concerns with your eye care provider, as they can provide the most personalized and accurate advice based on your specific situation.

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