Flashing Lights and Floaters: Eye Symptoms in Young Adults - Ophthalmology

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Flashing lights and floaters are common visual phenomena that many people experience, especially those with myopia (nearsightedness) or other eye conditions. Your description of seeing a white mist or flashes of light when your eyes are closed, which disappears upon opening your eyes, raises several points worth discussing.

Firstly, floaters are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age, the vitreous can become more liquid and may pull away from the retina, leading to the perception of floaters. In younger individuals, such as yourself in your twenties, floaters can also be a result of myopia, which can cause the vitreous to change more rapidly. The presence of floaters is generally benign, but they can be more noticeable against bright backgrounds or when looking at a clear sky.

The flashing lights you describe, particularly when your eyes are closed, could be related to a phenomenon known as "phosphene." Phosphenes are the perception of light without light actually entering the eye, often caused by pressure on the retina or the vitreous tugging on the retina. This is not uncommon and can happen in various situations, including when you rub your eyes or when the vitreous is moving around.

However, it is essential to differentiate between benign symptoms and those that may indicate a more serious condition. For instance, if you experience a sudden increase in floaters, flashes of light, or a shadow or curtain effect in your vision, these could be signs of retinal detachment or other serious retinal issues. Given your history of floaters and myopia, it is crucial to remain vigilant and consult with an eye care professional if you notice any significant changes in your symptoms.

Regarding your concern about whether experiencing these symptoms at a young age is abnormal, it is not uncommon for individuals with myopia to experience floaters and flashes earlier than those without. While vitreous degeneration is typically associated with aging, it can occur in younger individuals, especially those with high myopia.

In summary, while the symptoms you describe may be related to benign changes in the vitreous, it is always best to err on the side of caution. Regular eye examinations are essential, especially given your history of floaters and myopia. If you have not done so recently, consider scheduling an appointment with an ophthalmologist to discuss your symptoms in detail and to ensure that your retina is healthy. They may perform a comprehensive eye exam, including a dilated fundus examination, to assess the health of your retina and vitreous. This proactive approach will help alleviate any concerns and ensure that any potential issues are addressed promptly.