Floaters and Flashes: When to Seek Eye Care - Ophthalmology

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Floaters and flashes?


Hello Doctor: I work in an environment where I stare at a computer for at least eight hours a day, and I am a high myopia and floaters patient.
Often, when I wake up, I see wavy patterns or visual snow.
When looking out the car window, I sometimes notice symptoms like seeing stars.
Occasionally, it feels like there is light rain falling in my vision.
Earlier this month, I had a routine fundus examination, and the doctor said everything was normal, possibly due to retinal degeneration or symptoms of floaters.
However, one night this week, as I was preparing to sleep (the room was completely dark, and no outside light was coming in), I suddenly noticed what seemed like a quick flash, similar to a camera flash, occurring twice.
I would like to ask the doctor what this could be a symptom of.
Do I need to see an ophthalmologist again? Thank you.

VERA, 20~29 year old female. Ask Date: 2018/09/22

Dr. Cai Wenyuan reply Ophthalmology


Hello, at the beginning of this month, I had a routine fundus examination, and the doctor said everything is normal.
It may be symptoms of eye degeneration or floaters, and I should observe for a while and have regular check-ups.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2018/09/22

More Info


Hello! Thank you for your detailed question regarding your eye symptoms, particularly concerning floaters, flashes, and your experience with high myopia. Based on the information you've provided, it seems you are experiencing a combination of common visual disturbances associated with conditions like floaters and flashes, which can be concerning, especially for someone with high myopia.


Understanding Floaters and Flashes
Floaters are small spots or strands that drift through your field of vision. They are often caused by changes in the vitreous gel that fills the eye, which can become more liquid and form clumps or strands as we age. In your case, as a high myopia patient, you may be more prone to experiencing floaters due to the structural changes in the eye.

Flashes, on the other hand, are brief bursts of light that can occur when the vitreous gel pulls on the retina. This pulling can stimulate the retina and create the sensation of light, which can be alarming. The flashes you described, particularly the quick flashes resembling a camera flash when your eyes are closed, could be related to this vitreous traction.


When to Seek Eye Care
While floaters and occasional flashes can be benign, there are specific symptoms that warrant immediate attention:
1. Sudden Increase in Floaters: If you notice a sudden increase in the number of floaters, this could indicate a more serious issue, such as a retinal tear or detachment.


2. Persistent Flashes: If the flashes become more frequent or persistent, especially if they are accompanied by a curtain-like shadow in your vision, this could signal retinal problems.

3. Visual Disturbances: The "water ripple" or "electric noise" phenomena you experience could be related to your vitreous changes, but if these symptoms worsen or change, it’s essential to consult an eye care professional.

4. Darkening Vision: Any sudden loss of vision or significant changes in your visual field should prompt an immediate visit to an eye doctor.


Recommendations
Given your high myopia and the symptoms you've described, it would be prudent to schedule a follow-up appointment with your eye care provider. They can perform a thorough examination, including a dilated fundus exam, to assess the health of your retina and vitreous.
In the meantime, here are some general tips to help manage your eye health:
- Limit Screen Time: Since you work long hours in front of a computer, try to take regular breaks using the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.


- Proper Lighting: Ensure your workspace is well-lit to reduce strain on your eyes. Avoid working in dim lighting, as this can exacerbate visual disturbances.

- Stay Hydrated: Dehydration can affect your eye health, so make sure to drink plenty of water throughout the day.

- Regular Eye Exams: Given your history of high myopia and floaters, regular eye exams are crucial. They allow for early detection of any potential complications.


Conclusion
In summary, while floaters and occasional flashes can be normal, your specific symptoms, especially the recent flashes, should be evaluated by an eye care professional. It’s always better to err on the side of caution when it comes to eye health, particularly with your background of high myopia. Please make an appointment soon to ensure your eyes are healthy and to address any concerns you may have. Take care!

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