Floaters and Flashes: Key Insights for Eye Health

Q: Floaters and Flashes: Key Insights for Eye Health

Hello, patients with floaters： 1. It should be this way. 2. Yes, pulling can cause a sensation of flashes, but it doesn't necessarily mean there will be a tear. 3. No, some children use dilating drops daily to prevent myopia. 4. There have been no flas

Floaters and flashes?

Hello, Doctor.
Since June of this year, I have been experiencing a significant amount of floaters in both eyes.
However, starting in September, I began to notice that when I look at a white wall and move my eyes to the left and then back to the center, I see brief flashes of light (white light).
Sometimes, even when I blink, I feel a white light in the center of my vision.
After researching this issue, I understand that it is related to vitreous degeneration pulling on the retina, but I still have some questions for you:
1.
Regarding floaters that are accompanied by retinal tears or detachments, if my existing "old floaters" do not show any retinal holes or detachments after a dilated eye exam, can I be reassured about these "old floaters"? Should I only be concerned if I notice new floaters that could indicate a potential tear or detachment?
2.
From my research, I learned that vitreous pulling on the retina does not necessarily cause tears; it all depends on probability.
If a tear occurs, it occurs, and if it does not, it does not.
This understanding is correct, right?
3.
I really want to avoid reaching the point of needing retinal detachment surgery, so I am considering having a dilated eye exam every two weeks to check for tears.
If any are found, I would like to promptly treat them with laser.
I would like to ask the doctor if having dilated eye exams every two weeks could have any adverse effects on my eyes in the long term.
4.
Additionally, I read that you mentioned you had floaters when you were younger.
If it's not too personal, could you share your own experience regarding whether you have experienced flashes of light? How often do you typically have your retina checked for monitoring floaters?
5.
If a retinal tear or detachment is found during a fundus examination and treated with laser, is it necessary to consult a retina specialist for more reassurance, or can general ophthalmologists perform the examination and laser treatment as well?
6.
Is there any data indicating how many months after experiencing flashes of light is considered a higher risk period for retinal detachment (or tears)?
I apologize for the numerous questions, and I appreciate your help in clarifying these concerns.
Wishing you peace and well-being.

Feiwen zheng huanzhe, 30~39 year old female. Ask Date: 2021/10/14

Dr. Gao Pilin reply Ophthalmology

Hello, patients with floaters: 1.
It should be this way.
2.
Yes, pulling can cause a sensation of flashes, but it doesn't necessarily mean there will be a tear.
3.
No, some children use dilating drops daily to prevent myopia.
4.
There have been no flashes, so no retinal examination has been performed.
5.
All ophthalmologists should be able to perform retinal laser treatments.
However, retinal detachment surgery is best performed by a retinal specialist.
6.
This is not certain.
It depends on the strength of the vitreous traction, the degree and area of attachment, as well as the strength of the retina.

Reply Date: 2021/10/14

More Info

Hello! Thank you for your detailed questions regarding floaters and flashes in your vision. It’s understandable to be concerned about these symptoms, especially given your recent experiences. Let’s address your questions one by one, while also providing some additional context about floaters, flashes, and their implications for eye health.

1. Old Floaters and Retinal Concerns: If you have been diagnosed with floaters and have undergone a dilated eye exam that showed no signs of retinal tears or detachments, you can generally feel reassured about your existing floaters. Old floaters, which are often the result of age-related changes in the vitreous gel of the eye, are typically benign. However, if you notice new floaters or a sudden increase in their number, it’s essential to seek immediate medical attention, as this can indicate a potential retinal issue.

2. Understanding Vitreous Detachment: You are correct in your understanding that vitreous detachment does not always lead to retinal tears. The risk of a tear occurring depends on various factors, including the degree of vitreous traction on the retina and individual anatomical variations. Regular eye exams are crucial for monitoring any changes, and while the risk exists, many people experience vitreous detachment without complications.

3. Frequency of Eye Exams: While it’s understandable to want to monitor your eye health closely, having dilated eye exams every two weeks may not be necessary unless advised by your eye care professional. Frequent examinations can be taxing on your eyes and may not provide additional benefits if no new symptoms arise. It’s best to follow your doctor’s recommendations regarding the frequency of exams based on your specific situation.

4. Personal Experiences with Flashes: Many individuals, including eye care professionals, experience floaters and occasional flashes as part of the natural aging process of the eye. In my case, I have had floaters since my youth, and while I have experienced flashes, they were monitored through regular check-ups. Typically, I recommend annual exams unless symptoms change or worsen.

5. Specialized Care for Retinal Issues: While general ophthalmologists are trained to perform retinal examinations and laser treatments for retinal tears, consulting a retinal specialist can provide additional reassurance, especially for complex cases. Retinal specialists have advanced training in managing retinal diseases and can offer specialized care if needed.

6. Risk Period After Flashes: The risk of retinal detachment is generally higher in the weeks to months following the onset of flashes. If you experience new flashes or a significant increase in their frequency, it’s advisable to seek an eye exam promptly. Monitoring for changes in your vision is key, as early detection of retinal issues can significantly improve outcomes.

In summary, while floaters and flashes can be concerning, they are often benign, especially when no retinal tears or detachments are present. Regular monitoring and communication with your eye care provider are essential. If you notice any new symptoms or changes, don’t hesitate to reach out for an evaluation. Taking care of your eye health through regular check-ups, managing screen time, and ensuring proper lighting while reading can also help maintain your vision. Wishing you all the best in your eye health journey!

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