Flashing Lights in Vision: Is It a Retinal Issue? - Ophthalmology

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Flashing lights in vision, especially in individuals with high myopia, can be concerning and may indicate underlying retinal issues. Given your description of experiencing bright, moving spots in your vision, particularly when focusing on objects like your phone, it is essential to consider several factors that could contribute to these symptoms.

Firstly, the phenomenon of seeing flashes or bright spots, often referred to as "photopsia," can occur due to various reasons. In individuals with high myopia, the retina may be more susceptible to changes, including retinal detachment or tears. The vitreous gel, which fills the eye, can pull away from the retina as we age or due to changes in the eye structure, leading to these flashes of light. This is particularly common in high myopes, as the eye is elongated, which can increase the risk of such complications.

The fact that you mentioned these flashes have intensified recently, resembling "seeing stars" or "golden flashes," is noteworthy. This could indicate that the vitreous is exerting more traction on the retina, which may necessitate a thorough examination by an eye care professional. It is crucial to rule out any retinal tears or detachments, as these conditions can lead to significant vision loss if not addressed promptly.

Additionally, you mentioned experiencing these flashes during coughing episodes, which is interesting. Coughing can increase intraocular pressure temporarily, and in some cases, this pressure change can lead to visual disturbances, including the appearance of flashes or spots. This is particularly relevant for individuals with pre-existing eye conditions, such as high myopia or vitreous degeneration. The transient nature of these flashes during coughing suggests that they may be related to pressure changes rather than a direct retinal issue, but this does not eliminate the need for a comprehensive eye examination.

Given your symptoms and history of high myopia, it is advisable to seek an appointment with an ophthalmologist for a detailed examination, including a dilated fundus exam. This will allow the doctor to assess the health of your retina and vitreous more thoroughly. They may also perform additional tests, such as optical coherence tomography (OCT), to visualize the layers of the retina and check for any abnormalities.

In summary, while the flashes you are experiencing could be related to retinal issues, they may also be influenced by other factors such as intraocular pressure changes during coughing. It is essential to have a professional evaluation to determine the exact cause and ensure that any potential issues are addressed promptly. Regular eye check-ups are particularly important for individuals with high myopia to monitor for any changes in retinal health. If you notice any sudden changes in your vision, such as an increase in the frequency or intensity of these flashes, or if you experience a sudden loss of vision, seek immediate medical attention.