Visual Disturbances: Light Flashes and Floaters Explained - Ophthalmology

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Visual disturbances such as light flashes and floaters can be concerning, especially for individuals with myopia (nearsightedness) like yourself. Your experience of seeing light in front of objects, along with the presence of floaters, is not uncommon among those with high degrees of myopia. Let’s break down these symptoms and their potential implications.

Floaters are small specks or strands that float across your field of vision. They are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age or in the case of myopia, the vitreous can become more liquid and may pull away from the retina, leading to the formation of floaters. While floaters are generally harmless, they can sometimes indicate more serious conditions, especially if they appear suddenly or are accompanied by flashes of light.

Light flashes, on the other hand, can occur when the vitreous pulls on the retina, causing it to send signals to the brain that are interpreted as flashes of light. This phenomenon is known as photopsia. In some cases, frequent flashes can indicate a more serious issue, such as retinal tears or detachment, which can lead to vision loss if not treated promptly.

Given your high degree of myopia (around 700-800 degrees), you are at a higher risk for retinal issues. Myopia can lead to elongation of the eyeball, which increases the likelihood of vitreous detachment and retinal problems. It’s crucial to monitor these symptoms closely. If you notice an increase in the frequency or intensity of the flashes, or if you experience a sudden increase in floaters, it’s essential to seek immediate medical attention.

In your case, since you are experiencing both light flashes and floaters, it’s advisable to have regular eye examinations with a qualified ophthalmologist. They can perform a thorough examination, including a dilated fundus exam, to check for any signs of retinal tears or detachment. Even if previous examinations have shown no issues, ongoing monitoring is important, especially given your myopia.

Regarding your concern about the nature of the light you are seeing, it could be related to the afterimages or visual noise that some individuals experience, particularly in low-light conditions. This can be exacerbated by fatigue or prolonged screen time, which is common among students and professionals who spend long hours in front of computers.

In summary, while floaters and light flashes can be benign, they warrant careful observation, especially in the context of myopia. Regular check-ups with your eye doctor are vital to ensure that any potential issues are identified early. If you experience any changes in your symptoms, such as a sudden increase in floaters or flashes, or if you notice a curtain-like shadow in your vision, seek immediate medical attention. Taking proactive steps to monitor your eye health will help you maintain your vision and address any concerns promptly.