Eye Flashes and Floaters: When to Seek Medical Advice - Ophthalmology

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The eyes may see a brief flash of brightness or a dark spot that quickly disappears?


Hello, doctor.
I am severely myopic, around 900/1000 degrees.
My right eye has had floaters for several years.
I have a few questions:
1.
Recently, I sometimes see a brief flash of light or a small black dot in both eyes.
It doesn't move like floaters do.
When I blink or try to focus on it, it disappears immediately.
Is this also a type of floater?
2.
At night, when I turn off the lights, I occasionally see flashes when I move my eyes.
This happens rarely.
When I close my eyes and move them, I see bright spots that seem to follow the movement of my eyeball, and sometimes there are flashes.
Does this indicate retinal traction?
3.
A few days ago, I had a dilated eye exam, but the doctor checked very quickly and said there were no major issues.
However, this doesn't necessarily mean there are no problems with the retina.
I feel it wasn't thorough, and I'm a bit worried.
Should I see another doctor for a second opinion regarding the above situations?
4.
Last year, during an eye examination at the hospital, my eye pressure was measured at 23/25.
Other tests were done, and the doctor said it was likely just high eye pressure and that I should monitor it.
I haven't had it measured since.
Is it okay to leave it as is? Do I need to use eye drops to lower the pressure? How can I know if I have glaucoma? (Sometimes, when I overuse my eyes, I experience mild headaches and nausea at night, but the symptoms aren't severe, and I don't have much in the way of halos.)
5.
I want to take care of my eyes and retina.
Given my high myopia and elevated eye pressure, what supplements or nutrients would be appropriate for me?

Xiao Jie, 10~19 year old female. Ask Date: 2018/08/07

Dr. He Jianxian reply Ophthalmology


It is recommended that you seek a different physician for a dilated eye examination and discuss your symptoms in detail for a more accurate assessment.

Reply Date: 2018/08/07

More Info


Hello! Thank you for reaching out with your concerns regarding your eye health, particularly in relation to your high myopia and the symptoms you are experiencing. Let’s address your questions one by one.

1. Seeing Bright or Dark Spots: The sudden appearance of bright or dark spots that disappear quickly could be related to a phenomenon known as "visual snow" or could be a type of visual disturbance associated with your high myopia. While floaters (or "muscae volitantes") are typically moving spots that are caused by changes in the vitreous gel inside the eye, the static bright or dark spots you describe may not be typical floaters. They could be related to the way your retina is processing visual information, especially given your history of high myopia. However, it is essential to monitor these symptoms, especially if they become more frequent or change in nature.

2. Flashes of Light: Experiencing flashes of light, especially when moving your eyes or in low-light conditions, can be concerning. These flashes are often caused by the vitreous gel pulling on the retina, which can happen as the vitreous shrinks with age or due to myopia. While occasional flashes can be benign, they can also indicate potential retinal issues, especially if they are new or increasing in frequency. It is advisable to report these symptoms to your eye doctor, as they may warrant further investigation to rule out retinal tears or detachments.

3. Follow-Up with a Different Doctor: If you feel that your concerns were not fully addressed during your last visit, it is entirely reasonable to seek a second opinion. A thorough examination, especially with a dilated fundus exam, is crucial for assessing the health of your retina, particularly in the context of your high myopia and the symptoms you are experiencing. If you have ongoing concerns, don’t hesitate to consult another ophthalmologist for a more detailed assessment.

4. Eye Pressure and Glaucoma: An eye pressure reading of 23-25 mmHg is considered elevated and could indicate a risk for glaucoma, especially in the context of your high myopia. Regular monitoring of your intraocular pressure (IOP) is essential. If you experience symptoms like headaches or nausea, it is important to discuss these with your doctor, as they could be related to eye strain or other issues. If glaucoma is a concern, your doctor may recommend additional tests, such as visual field testing or optical coherence tomography (OCT), to assess the health of your optic nerve.

5. Eye Health Maintenance: For maintaining eye health, especially with high myopia and elevated eye pressure, consider a diet rich in antioxidants, such as leafy greens, carrots, and fish high in omega-3 fatty acids. Staying hydrated and taking regular breaks from screens can also help reduce eye strain. Additionally, discuss with your doctor the possibility of taking supplements like lutein and zeaxanthin, which may support retinal health. Regular eye exams are crucial for monitoring your condition and ensuring that any changes are addressed promptly.

In summary, your symptoms warrant careful monitoring and possibly further evaluation. It’s essential to maintain open communication with your eye care provider and advocate for your health. If you notice any changes in your vision or if your symptoms worsen, seek medical attention promptly. Your eye health is paramount, especially with your history of high myopia. Take care, and I wish you the best in maintaining your eye health!

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