Floaters and Flashes: Signs of Retinal Issues? - Ophthalmology

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Floaters and flashes?


Hello, Doctor: I have had floaters since elementary school, but I only started having follow-up examinations in high school.
A month ago, I underwent a dilated eye exam, which showed no issues.
However, recently I have been experiencing the following problems: 1.
An increase in the number of floaters.
2.
When looking at fluorescent lights, I perceive a white haze that seems to move.
3.
Occasionally, I see floating light patterns around my eyes, or fine flashes of light when I move my eyes.
I have experienced these issues during previous examinations as well, but the results have always been normal.
Could this be a sign of a retinal tear? What should I be aware of?

Lele, 20~29 year old female. Ask Date: 2019/05/24

Dr. Gao Pilin reply Ophthalmology


Hello Lele: The symptoms of floaters can change over time, and these symptoms may sometimes be associated with retinal pathology.
It is not possible to predict whether these symptoms are accompanied by retinal changes; only an examination can confirm this.
Therefore, the safest approach is to get checked each time new symptoms arise.
Although it may be inconvenient, it is the least likely way to experience complications.
In Taiwan, the ophthalmology department at Puzi Hospital is available: Monday, Tuesday, Thursday, and Friday from 8:00 AM to 12:00 PM, and Wednesday from 2:00 PM to 4:30 PM.
Online responses can only serve as a reference; if necessary, you should seek care at a medical facility.
I hope to have the opportunity to serve you.
Gao Pilin

Reply Date: 2019/05/24

More Info


Hello! Thank you for reaching out with your concerns about floaters and flashes in your vision. It’s understandable to feel anxious about changes in your eyesight, especially when you have a history of floaters and have been monitored for retinal issues. Let’s break down your symptoms and provide some clarity on what they might mean.

1. Increased Floaters: Floaters are small specks or strands that drift through your field of vision. They are often more noticeable against bright backgrounds, such as a clear sky or a white wall. An increase in floaters can occur due to various reasons, including age-related changes in the vitreous gel that fills the eye, or it could be a sign of more serious conditions such as retinal tears or detachments. Since you have a history of floaters, it’s essential to monitor any significant changes in their frequency or appearance.

2. Seeing a White Mist: When you look at bright lights, such as fluorescent bulbs, and notice a white mist or haze, this could be related to the way light interacts with the vitreous gel in your eye. This phenomenon can sometimes be linked to changes in the vitreous, such as liquefaction or detachment. While this symptom alone is not typically alarming, it’s important to keep an eye on it and report any changes to your eye care professional.

3. Flashes of Light: The appearance of flashes or flickering lights, especially when moving your eyes, can be indicative of the vitreous gel pulling on the retina. This is often described as a sensation of "lightning" in the peripheral vision. While occasional flashes can be benign, they can also signal potential retinal issues, particularly if they are new or accompanied by a sudden increase in floaters.

Given your history of floaters and the recent changes you’ve described, it’s wise to maintain regular follow-ups with your eye doctor. They can perform comprehensive examinations, including dilated fundus exams and possibly optical coherence tomography (OCT), to assess the health of your retina and vitreous.

Recommendations for Monitoring and Care:
- Regular Eye Exams: Continue with your scheduled eye exams, especially if you notice any new symptoms or changes in your vision. It’s crucial to have a thorough evaluation, particularly if you experience a sudden increase in floaters or flashes.

- Be Aware of Symptoms: Keep track of any new symptoms, such as a sudden increase in floaters, flashes of light, or any changes in your peripheral vision. If you notice these, contact your eye doctor immediately.

- Protect Your Eyes: While there’s no specific way to prevent floaters, protecting your eyes from UV light by wearing sunglasses and maintaining a healthy lifestyle can contribute to overall eye health. Staying hydrated and eating a balanced diet rich in antioxidants may also support eye health.

- Limit Eye Strain: If you spend long hours reading or using screens, ensure you take regular breaks to reduce eye strain. The 20-20-20 rule is helpful: every 20 minutes, look at something 20 feet away for at least 20 seconds.

- Stay Calm: It’s natural to feel anxious about your vision, but try to stay calm. Many people experience floaters and flashes without serious underlying issues. Keeping a positive mindset and focusing on regular check-ups can help alleviate some of that anxiety.

In conclusion, while your symptoms warrant attention, they do not necessarily indicate an imminent retinal tear or detachment. Regular monitoring and communication with your eye care provider are key. If you have any further questions or concerns, don’t hesitate to reach out to your eye doctor for personalized advice and reassurance. Your eye health is important, and staying informed is the best way to manage your concerns.

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