Are Flashing Lights a Sign of Floaters or Other Eye Issues? - Ophthalmology

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Flashing lights in your vision can indeed be concerning, especially for someone with high myopia (nearsightedness) like yourself. High myopia increases the risk of various eye conditions, including retinal detachment, which can manifest as flashes of light or floaters.
When you see flashes of light, it is often due to the vitreous gel inside your eye pulling away from the retina. This is a common occurrence and can happen as we age or due to changes in the eye structure, particularly in individuals with high myopia. The flashes are usually brief and may appear as streaks or spots of light in your peripheral vision.
However, it is essential to differentiate between benign causes and more serious conditions. Here are some potential explanations for the flashing lights you are experiencing:
1. Vitreous Detachment: As mentioned, this is when the vitreous gel pulls away from the retina. It can cause flashes of light and is generally not serious, but it should be monitored.

2. Retinal Tear or Detachment: This is a more serious condition where the retina becomes torn or detached from the back of the eye. Symptoms can include sudden flashes of light, an increase in floaters, or a shadow or curtain effect in your vision. This requires immediate medical attention.

3. Migraine Aura: Some individuals experience visual disturbances, including flashes of light, as part of a migraine aura, even without a headache. This is usually temporary and resolves on its own.

4. Other Eye Conditions: Conditions such as posterior uveitis or other retinal issues can also cause visual disturbances.
Given your history of high myopia and the recent onset of these symptoms, it is crucial to consult with an eye care professional as soon as possible. They can perform a comprehensive eye examination, including a dilated fundus exam, to assess the health of your retina and vitreous.
In summary, while flashes of light can be benign, they can also indicate more serious conditions, especially in individuals with high myopia. It is always better to err on the side of caution and seek professional evaluation to rule out any potential issues. Early detection and treatment are vital in preserving your vision and preventing complications.