Eye Flashes: When to Seek Medical Attention

Q: Eye Flashes: When to Seek Medical Attention

Hello： If it were my suggestion, I would recommend undergoing a dilated eye examination for peace of mind. <br>If you are concerned about the pandemic, you should pay special attention to your observations. <br>If your condition is improving, you may not need to go for an examina

Flashes of light in the eyes for nearly a week?

Hello Dr.
Gao,
Since this Tuesday, I have been seeing flashes of light in the upper right corner of my right eye.
Generally, online discussions about retinal tears or detachments describe flashes that resemble lightning and are white in color.
However, the flashes I see are more yellow and oval-shaped rather than lightning-like.
The interior of the oval is not uniform, with varying brightness levels.

Here is a simulation of the flash sensation: http://freegifmaker.me/images/2hkEE/.
After the flash appears, it gradually fades from top to bottom, rather than disappearing all at once.
The entire process lasts about one to two seconds.
On Tuesday, I experienced a higher frequency of flashes, approximately four to five times a day, and they were brighter.
Over the past four days, the brightness of the flashes has diminished, and the frequency seems to have decreased as well (though I may not have noticed them due to their reduced intensity, so I'm uncertain about the actual occurrence count).
This is not the first time I have experienced flashes; previously, they felt like being illuminated by bright headlights, followed by a brief afterimage.
I had a retinal examination at Chang Gung Memorial Hospital last October, and my fundus was normal.

Do you think I need to seek medical attention promptly? I live in a remote area and would need to take public transportation to reach an eye clinic, and I am concerned about the risk of infection during the pandemic.
Therefore, I wanted to consult you online first.
Thank you for your patient response.

Niming, 20~29 year old female. Ask Date: 2021/06/19

Dr. Gao Pilin reply Ophthalmology

Hello: If it were my suggestion, I would recommend undergoing a dilated eye examination for peace of mind.
If you are concerned about the pandemic, you should pay special attention to your observations.
If your condition is improving, you may not need to go for an examination.
However, if it worsens, you should seek medical attention as soon as possible; it doesn’t necessarily have to be a large hospital, as a nearby clinic can also provide care.
Online responses should only be considered as references; when necessary, it is important to seek care at a medical facility.
I hope to have the opportunity to assist you.
Gao Pi-Lin

Reply Date: 2021/06/19

More Info

When it comes to experiencing flashes of light in the eyes, it can be concerning, especially when the symptoms change or intensify. Based on your description, it seems that you are observing flashes of light that are yellowish and oval-shaped, with varying brightness levels. This is different from the typical "lightning" flashes often associated with retinal issues, which can indeed be alarming.

Flashes of light in the vision can be caused by several factors, and understanding these can help determine whether you need to seek medical attention. Here are some potential causes:
1. Vitreous Detachment: As we age, the vitreous gel inside the eye can shrink and pull away from the retina. This can cause flashes of light, especially in the peripheral vision. The flashes may appear as brief bursts of light and can vary in intensity.

2. Retinal Issues: While you mentioned that you had a retinal examination last October with no abnormalities, it is essential to remain vigilant. Flashes can sometimes indicate retinal tears or detachments, which require immediate medical attention. If you notice a sudden increase in flashes or the appearance of new floaters, it is crucial to seek help promptly.

3. Migraine Auras: Even if you do not have a history of migraines, some individuals experience visual disturbances known as auras, which can include flashes of light. These are typically transient and resolve within a short period.

4. Ocular Migraines: Similar to migraine auras, ocular migraines can cause temporary visual disturbances, including flashes of light. These may not be accompanied by a headache.

5. Other Causes: Conditions such as retinal migraines, inflammation in the eye, or even stress and fatigue can lead to visual disturbances.

Given that your symptoms have changed over the past few days, with a decrease in brightness and frequency, it could indicate that your condition is stabilizing. However, the fact that you have experienced these flashes multiple times a day, especially if they are new or different from your previous experiences, warrants caution.

When to Seek Medical Attention
1. Sudden Changes: If you notice a sudden increase in the frequency or intensity of the flashes, or if you see new floaters or a shadow in your vision, you should seek medical attention immediately.

2. Duration and Frequency: If the flashes persist or become more frequent, it is advisable to consult with an eye care professional, even if you have concerns about traveling during the pandemic.

3. Associated Symptoms: If you experience any other symptoms such as vision loss, distortion, or significant discomfort, these could be signs of a more serious condition that requires immediate evaluation.

Conclusion
While it is understandable to be concerned about potential exposure to illness while seeking medical care, your eye health is paramount. If you have any doubts or if your symptoms worsen, it is better to err on the side of caution and consult with an eye specialist. Many clinics have protocols in place to ensure patient safety during the pandemic, and telemedicine options may also be available for initial consultations.

In summary, while your symptoms may not indicate an immediate emergency, they do warrant careful monitoring. If you have any further changes or concerns, please do not hesitate to reach out to a healthcare provider. Your vision is invaluable, and timely intervention can make a significant difference in outcomes related to eye health.

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