Eye Floaters: When to Seek Medical Attention - Ophthalmology

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Eye fatigue


Hello, doctor.
I would like to ask a few questions regarding floaters.
1.
How many additional black spots indicate a more serious condition? 2.
I found information online stating that if the "appearance changes" of floaters, one should see a doctor.
What does "appearance changes" mean? 3.
Sometimes my floaters appear larger, and other times they seem smaller, especially when my eyes are fatigued.
Is this situation normal?

tie si wang, 10~19 year old female. Ask Date: 2016/12/18

Dr. Cai Wenyuan reply Ophthalmology


Hello, you should be particularly vigilant and seek an eye specialist for examination if you experience the following symptoms of floaters: severe vision loss, distortion or warping of objects, fixed visual field defects, curtain-like shadows, flashes of light, or a sudden and rapid increase in the number of black spots.
Wishing you safety and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2016/12/18

More Info


Hello! Thank you for your questions regarding eye floaters, also known as vitreous opacities. Understanding when to seek medical attention for floaters is crucial, especially since they can sometimes indicate underlying eye conditions. Let’s address your questions one by one.

1. How many new floaters are considered serious?
There isn't a specific number of floaters that indicates a serious condition, as it can vary from person to person. However, if you notice a sudden increase in floaters, especially if accompanied by flashes of light or a shadow in your peripheral vision, it is essential to seek medical attention immediately. This could indicate a retinal tear or detachment, which is a serious condition that requires prompt treatment.

2. What does "change in shape" mean?
The term "change in shape" refers to any noticeable alteration in the appearance of your floaters. This could mean that they become larger, more numerous, or change from a small dot to a more complex shape, such as a cobweb or a thread-like structure. If you notice that your floaters are changing in a way that is different from what you have previously experienced, it is advisable to consult an eye care professional. Changes in floaters can sometimes signal changes in the vitreous gel or even retinal issues.

3. Is it normal for floaters to change size, especially when the eyes are fatigued?
Yes, it is relatively common for floaters to appear larger or smaller depending on various factors, including eye fatigue. When your eyes are tired, you may become more aware of floaters, and they might seem more pronounced. This can be due to the way light interacts with the vitreous gel in your eye, which can change with your eye's focus and fatigue levels. However, if you notice persistent changes or if the floaters become bothersome, it is a good idea to have an eye exam.

In summary, while floaters are often benign and a common part of the aging process, certain changes warrant medical attention. If you experience a sudden increase in floaters, changes in their shape or size, or any accompanying symptoms like flashes of light or vision loss, you should see an eye care professional as soon as possible. Regular eye exams are also important, especially if you have a history of floaters or other eye conditions.
Remember, your vision is precious, and it’s always better to err on the side of caution when it comes to your eye health. If you have any further questions or concerns, don’t hesitate to reach out to your eye doctor for personalized advice and care.

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