Eye Flashes: When to Seek Medical Attention

Q: Eye Flashes: When to Seek Medical Attention

Hello： It is advisable to get checked again; being cautious is always better. <br>Inform your physician about your condition, and they will conduct the necessary examinations for you.

Flashes of light in the eyes?

Hello Dr.
Gao, I had retinal laser treatment about 6 to 7 years ago.
On the morning of October 13th (Thursday), I suddenly noticed a flash of light in my eye, approximately the size of a smartphone, which has not disappeared since.
I had a follow-up examination of my retina in early September (due to the previous laser treatment, I have regular check-ups).
Currently, my flash symptoms resemble a persistent afterimage; I see flashes when I close and open my eyes, and this afterimage remains in my line of sight.
It seems to move slightly within that area, which is roughly the size of a 5-inch smartphone.
I also have severe floaters (which developed after the retinal laser treatment), and I am certain this is not related to the floaters.

I would like to ask you, Dr.
Gao, do you think I should see a doctor on Monday, or should I observe it for a while? (I had a dilated retinal examination in early September, and I have experienced flashes before, but they usually disappear within 1 to 2 days; it has now been four days and the symptom persists.) If you recommend seeing a doctor, what tests should I request? Should I have another dilated retinal examination? Thank you very much.

Niming, 30~39 year old female. Ask Date: 2022/10/16

Dr. Gao Pilin reply Ophthalmology

Hello: It is advisable to get checked again; being cautious is always better.
Inform your physician about your condition, and they will conduct the necessary examinations for you.

Reply Date: 2022/10/16

More Info

When it comes to experiencing flashes of light in your vision, especially following a history of retinal laser treatment, it is crucial to take these symptoms seriously. Your description of a persistent flash resembling a residual image, particularly one that has lasted for several days, warrants immediate attention from an eye care professional.

Flashes of light, or photopsia, can occur for various reasons, and understanding the underlying causes is essential for determining the appropriate course of action. Given your history of severe floaters and previous retinal laser treatment, the concern primarily revolves around potential retinal issues, including retinal detachment or tears. These conditions can arise when the vitreous gel in the eye pulls away from the retina, leading to flashes of light and, in some cases, the appearance of new floaters or shadows in your vision.

The fact that you have been experiencing these flashes for four days without resolution is particularly concerning. While some flashes can be benign and related to vitreous changes, persistent flashes, especially in the context of previous retinal surgery, should not be ignored. The risk of retinal detachment increases with age, myopia (nearsightedness), and previous eye surgeries, making it imperative to err on the side of caution.

In your case, I strongly recommend that you see an eye doctor as soon as possible, preferably an ophthalmologist who specializes in retinal conditions. When you visit, it would be beneficial to request a comprehensive examination, including a dilated fundus examination. This allows the doctor to thoroughly assess the retina for any signs of tears, detachment, or other abnormalities. Additionally, optical coherence tomography (OCT) may be performed to provide detailed images of the retina and vitreous, helping to identify any issues that may not be visible during a standard examination.

While you may have had a recent examination in September, the nature of your current symptoms suggests that a follow-up is necessary. Changes in your vision, especially those that are new or worsening, should always prompt a re-evaluation. It is better to be proactive in such situations, as early detection of retinal problems can significantly improve outcomes and preserve vision.

In summary, based on your symptoms and medical history, I advise you to seek medical attention promptly. When you visit the ophthalmologist, be sure to communicate your symptoms clearly, including the duration and nature of the flashes, as well as your history of retinal laser treatment and floaters. This information will help guide the examination and any necessary diagnostic tests. Your vision is precious, and taking timely action can make all the difference in ensuring your eye health.

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