Sudden Black Spots in Vision: Causes and Concerns - Ophthalmology

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Experiencing sudden black spots in your vision can be concerning, especially for someone with a high degree of myopia, like your case of -11.00 diopters. The appearance of these black spots, which you describe as sudden and transient, could be attributed to several potential causes, some of which may require immediate attention.

1. Vitreous Detachment: In individuals with high myopia, the vitreous gel that fills the eye can become more liquefied and may detach from the retina. This process can lead to the perception of floaters or sudden black spots. While this can be a normal part of aging, in myopic patients, it can occur earlier and may increase the risk of retinal tears or detachment.

2. Retinal Issues: The sudden appearance of black spots could also indicate a more serious issue, such as a retinal tear or detachment. This is particularly concerning if you experience additional symptoms like flashes of light, a curtain-like shadow over your vision, or a significant increase in floaters. Retinal detachment is a medical emergency that requires prompt treatment to prevent permanent vision loss.

3. Ocular Migraines: Another possibility is that you are experiencing ocular migraines, which can cause temporary visual disturbances, including black spots or scotomas. These usually resolve within a short period and are often accompanied by headache, but they can occur without pain.

4. Other Causes: Other potential causes could include transient ischemic attacks (TIAs) affecting the visual pathways in the brain, or even issues related to blood flow to the retina. Conditions such as hypertension or diabetes can also contribute to visual disturbances.

Given your high degree of myopia and the nature of your symptoms, it is crucial to seek a comprehensive eye examination from an ophthalmologist. They will likely perform a dilated fundus examination to assess the health of your retina and vitreous. Additionally, imaging tests such as optical coherence tomography (OCT) may be utilized to get a detailed view of the retinal layers and detect any abnormalities.

In summary, while the sudden appearance of black spots in your vision may not always indicate a serious problem, the combination of your high myopia and the nature of your symptoms warrants a thorough evaluation. Early detection of any retinal issues can significantly improve the outcome and preserve your vision. Please do not hesitate to reach out to an eye care professional for an assessment. Your vision is invaluable, and timely intervention can make a significant difference.