Eye Flashes and Glare: Causes and Self-Assessment Tips

Q: Eye Flashes and Glare: Causes and Self-Assessment Tips

Oh no, hello： This is likely the flashes caused by the vitreous pulling on the retina. <br>If the examination showed no issues, you can just monitor it on your own. <br>If the frequency increases or if you feel the situation worsens, then you should get re-examined. <br>There's n

Flashes of light, glare?

Hello, Doctor Gao: I am nearsighted with a prescription of -5.50 in my left eye and -3.50 in my right eye, and I have astigmatism of -2.50 in my left eye and -1.50 in my right eye.
I started experiencing floaters about six years ago.
Recently, in the past week, I have occasionally felt like I was flashed by a camera's flash, and over a month ago, I experienced photophobia (along with glare at night).
Today, I visited a doctor who performed a dilated eye exam and said there were no retinal tears, so it’s nothing to worry about and suggested letting it resolve on its own.
The doctor also mentioned that they couldn't find a cause for my glare.
So far, my vision is fine except for the glare, which is somewhat bothersome, but the frequency of the flashes hasn’t increased.
However, I am very concerned.
How can I self-assess for potential retinal tears? I can't go for dilated exams every day since I experience a few flashes daily.
Besides reducing the use of digital devices, are there any other precautions I should take? Also, if I must use digital devices, does reducing blue light from screens help prevent the flashes from worsening? Since the glare has no identified cause, is there a way to alleviate or reduce it through daily care?

Can’t believe it, boo hoo., 20~29 year old female. Ask Date: 2022/03/28

Dr. Gao Pilin reply Ophthalmology

Oh no, hello: This is likely the flashes caused by the vitreous pulling on the retina.
If the examination showed no issues, you can just monitor it on your own.
If the frequency increases or if you feel the situation worsens, then you should get re-examined.
There's no need to take any special precautions; just let it change gradually on its own.

Reply Date: 2022/03/28

More Info

Understanding eye flashes and glare can be quite concerning, especially for individuals with pre-existing conditions like myopia and floaters. Based on your description, it seems you are experiencing intermittent flashes of light, which can be alarming. Here’s a comprehensive overview of potential causes, self-assessment tips, and lifestyle modifications to help manage your symptoms.

Causes of Eye Flashes and Glare
1. Vitreous Degeneration: As you age or due to myopia, the vitreous gel in your eye can begin to liquefy and pull away from the retina. This process can lead to flashes of light, especially when the vitreous tugs on the retina.

2. Retinal Issues: Although your recent examination showed no retinal tears, it’s important to remain vigilant. Flashes can sometimes indicate retinal detachment or tears, particularly if they are accompanied by an increase in floaters or a shadow in your peripheral vision.

3. Photophobia (Light Sensitivity): This can occur due to various reasons, including dry eyes, migraines, or even certain medications. It can lead to discomfort in bright environments and may cause glare.

4. Glare from Light Sources: Glare can be exacerbated by conditions such as cataracts or corneal irregularities. If you are experiencing glare at night or in bright conditions, it may be worth discussing with your eye care professional.

5. Eye Strain: Prolonged use of digital devices can lead to eye strain, which may contribute to symptoms like glare and flashes. This is often referred to as digital eye strain or computer vision syndrome.

Self-Assessment Tips
- Monitor Symptoms: Keep a diary of when you experience flashes or glare. Note the frequency, duration, and any accompanying symptoms (like headaches or changes in vision). This information can be valuable for your eye care provider.

- Visual Field Testing: While you cannot perform a formal visual field test at home, you can do a simple check by covering one eye and looking for any shadows or missing areas in your peripheral vision. Repeat with the other eye.

- Check for Floaters: If you notice an increase in floaters or if they change in appearance, it’s essential to consult your eye doctor promptly.

Lifestyle Modifications
1. Limit Screen Time: Reducing the amount of time spent on screens can help alleviate symptoms. If you must use screens, take regular breaks using the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.

2. Adjust Lighting: Use softer lighting and avoid glare from windows or direct light sources. Consider using anti-reflective coatings on your glasses if you wear them.

3. Blue Light Filters: Using blue light filters on your devices can help reduce glare and eye strain, although the evidence on their effectiveness is mixed. They may provide some comfort, especially during prolonged use.

4. Stay Hydrated and Use Artificial Tears: Keeping your eyes lubricated can help reduce dryness and discomfort, which may contribute to glare.

5. Regular Eye Exams: Continue to have regular check-ups with your eye doctor, especially since you have a history of floaters and myopia. They can monitor any changes in your eye health.

Addressing Glare
While the exact cause of your glare may not have been identified, there are a few strategies you can employ:
- Wear Sunglasses: Use sunglasses with UV protection when outdoors to reduce glare from sunlight.

- Consider Anti-Glare Lenses: If you wear glasses, ask your optometrist about anti-glare or anti-reflective coatings that can help reduce glare from screens and bright lights.

Conclusion
While experiencing flashes and glare can be distressing, it’s essential to stay informed and proactive about your eye health. Regular check-ups and monitoring your symptoms will help ensure that any potential issues are addressed promptly. If your symptoms worsen or you notice new changes in your vision, do not hesitate to seek medical advice. Remember, maintaining a healthy lifestyle and being mindful of your eye care can significantly impact your overall eye health.

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