Bright Spots in Vision: Are They Floaters or Retinal Flashes? - Ophthalmology

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Hello! Thank you for your question regarding the bright spots in your vision. Based on your description, it sounds like you are experiencing a phenomenon that could be related to either floaters (myodesopsia) or retinal flashes (photopsia). Let's break down these two conditions to help clarify what you might be experiencing.

Floaters are small, shadowy shapes that drift across your field of vision. They are often described as spots, threads, or cobweb-like structures. Floaters are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age or in cases of high myopia (which you mentioned you have), the vitreous can become more liquid and may pull away from the retina, leading to the perception of floaters. They are usually harmless and are more noticeable against bright backgrounds, such as a clear sky or a white wall.

On the other hand, retinal flashes are brief bursts of light that can occur when the retina is stimulated, often due to the vitreous pulling on it. This can happen when the vitreous gel shrinks or detaches from the retina, which is more common in individuals with high myopia. The flashes can appear as bright spots or streaks of light and may be accompanied by a sensation of movement, especially if you move your eyes.
Given that you mentioned the bright spot appears and disappears quickly (around 0.5 seconds) and moves with your eye, it leans more towards being a retinal flash rather than a floater. However, it is essential to note that both conditions can coexist, especially in individuals with high myopia.

Since you have a history of myopia and are experiencing these visual phenomena, it is crucial to monitor your symptoms. If you notice an increase in the frequency of these flashes, or if they are accompanied by other symptoms such as a sudden increase in floaters, a shadow or curtain over your vision, or any significant changes in your visual acuity, it is vital to seek immediate medical attention. These could be signs of a retinal tear or detachment, which requires prompt treatment.

In your case, since you have already undergone examinations and have been diagnosed with myopia, it is advisable to continue regular eye check-ups with your ophthalmologist. They can monitor the health of your retina and vitreous and provide guidance based on any changes you may experience.

In summary, while your symptoms could indicate either floaters or retinal flashes, the nature of the bright spot you described suggests it may be more related to retinal flashes due to the vitreous pulling on the retina. Keep an eye on your symptoms, and do not hesitate to reach out to your eye care professional if you have any concerns. Your vision health is paramount, and regular check-ups are essential, especially with your myopic condition.