Visual Disturbances: Dark and Light Stripes in High Myopia - Ophthalmology

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Visual disturbances, particularly in individuals with high myopia, can be concerning and may manifest in various ways, including the appearance of dark and light stripes or flashes. Given your description of experiencing alternating dark and bright linear images while using your phone or watching television, along with the presence of moving black dots, it is essential to consider several factors that could contribute to these symptoms.

Firstly, high myopia (or severe nearsightedness) can lead to changes in the structure of the eye, particularly the retina and vitreous body. In high myopia, the eye is elongated, which can increase the risk of retinal issues, including retinal tears or detachments. The symptoms you describe—dark and light stripes—could potentially be related to changes in the vitreous gel that fills the eye. As we age or due to myopia, the vitreous can become more liquid and may pull away from the retina, leading to visual disturbances such as flashes or floaters.

The phenomenon of seeing dark and light stripes may also be associated with a condition known as "visual snow," where individuals perceive a persistent visual disturbance that can include seeing static or flickering lights. However, this is less common and often requires a thorough evaluation by a specialist.

Your experience of seeing moving black dots could be related to floaters, which are small clumps of gel or cells inside the vitreous that cast shadows on the retina, leading to the perception of spots or strands in your vision. While floaters are common and often benign, a sudden increase in their number or the appearance of new floaters, especially if accompanied by flashes of light, should prompt a comprehensive eye examination to rule out any serious conditions.

Regarding your dry eye condition, this can exacerbate visual disturbances. Dry eyes can lead to fluctuating vision, particularly when focusing on screens for extended periods. The discomfort from dry eyes can cause you to blink less frequently, leading to temporary visual disturbances. Using lubricating eye drops may help alleviate some of these symptoms.

It is concerning that you have not undergone a dilated fundus examination, especially given your history of high myopia and the new visual symptoms you are experiencing. A dilated eye exam allows the ophthalmologist to thoroughly assess the retina for any signs of tears, detachment, or other abnormalities that may not be visible during a standard examination.

In summary, while your symptoms could be related to benign causes such as floaters or dry eyes, the presence of high myopia necessitates careful monitoring for potential retinal issues. I recommend seeking a second opinion from an ophthalmologist who can perform a comprehensive examination, including a dilated fundus exam, to ensure that your retina is healthy and to address your concerns about the visual disturbances you are experiencing. Regular follow-ups are crucial in managing high myopia and any associated complications effectively.