Eye Flashes and Floaters: When to Seek Help - Ophthalmology

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Experiencing flashes of light when looking at objects?


Hello Doctor, recently I have been experiencing flashes of light when I look at things, and I often see a black dot moving around.
Sometimes, after sitting for a long time or getting up quickly from a squatting position, I feel dizzy for a moment and then my vision goes completely black, and I can't see anything.
After a few minutes, it returns to normal.
Sometimes I also feel like there is something in my eye.
What could this be? Is it serious? QAQ

Chun Chun, 10~19 year old female. Ask Date: 2016/05/08

Dr. He Jianxian reply Ophthalmology


The presence of flashes and floaters is known as "floaters syndrome." You may undergo a dilated eye examination.
As for experiencing a dark area when standing up after drinking, this is likely due to orthostatic hypotension, which is quite common.

Reply Date: 2016/05/08

More Info


Hello! Thank you for reaching out with your concerns about the eye flashes and floaters you are experiencing. It's completely understandable to feel anxious when you notice changes in your vision, especially when they involve symptoms like flashes of light and floaters. Let's break down your symptoms and discuss what they might mean, as well as when you should seek further medical attention.

1. Understanding Flashes and Floaters: Flashes of light in your vision can occur due to various reasons, but they are often related to the vitreous gel inside your eye pulling away from the retina. This is a common occurrence as we age and is known as vitreous detachment. Floaters, on the other hand, are tiny specks or strands that drift through your field of vision, caused by small clumps of gel or cells inside the vitreous. Both flashes and floaters can be benign, but they can also indicate more serious conditions, such as retinal tears or detachments, especially if they are new or accompanied by other symptoms.

2. Symptoms of Concern: The fact that you are experiencing flashes and floaters, along with episodes of temporary vision loss (like when you stand up quickly), warrants attention. The sudden loss of vision, even if temporary, can be a sign of a more serious issue. If you notice a significant increase in floaters, flashes of light, or a shadow or curtain effect in your vision, it is crucial to seek immediate medical attention from an eye care professional.

3. Possible Causes: Your symptoms could be related to several conditions:
- Vitreous Detachment: As mentioned, this is common and usually not serious, but it can lead to retinal tears.

- Retinal Tear or Detachment: This is a more serious condition that requires prompt treatment to prevent permanent vision loss.

- Ocular Migraines: These can cause temporary flashes of light and visual disturbances but are usually not associated with lasting vision changes.

- Other Conditions: Issues like high blood pressure or diabetes can also affect your vision, so it's essential to consider your overall health.

4. When to Seek Help: Given your symptoms, it is advisable to see an eye doctor as soon as possible. They will perform a comprehensive eye examination, which may include dilating your pupils to get a better view of the retina and vitreous. This examination can help rule out any serious conditions.

5. Managing Your Eye Health: While waiting for your appointment, try to avoid straining your eyes. Ensure you take regular breaks when reading or using screens, and maintain a healthy lifestyle that includes a balanced diet rich in vitamins A, C, and E, omega-3 fatty acids, and antioxidants, which are beneficial for eye health. Staying hydrated and managing any underlying health conditions is also important.

6. Emotional Support: It's completely normal to feel anxious about your vision, especially if you've had previous eye issues. Consider discussing your fears with a trusted friend or family member, or even a mental health professional if your anxiety feels overwhelming. Remember, you are not alone in this, and seeking help is a positive step.

In conclusion, while flashes and floaters can be common, your specific symptoms, especially the temporary vision loss, should be evaluated by an eye care professional promptly. Don't hesitate to reach out for help, as early intervention can make a significant difference in your eye health. Take care, and I hope you find relief and clarity soon!

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