Floaters and Flashes: When to Seek Eye Care - Ophthalmology

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Understanding floaters and flashes in the context of eye health is crucial, especially for individuals with high myopia (nearsightedness). Your recent experience with floaters and the occasional flashes of light raises important questions about when to seek further medical attention.
Floaters are typically caused by changes in the vitreous humor, the gel-like substance in the eye, which can become more liquid and form clumps or strands that cast shadows on the retina. This is a common occurrence, particularly in individuals with myopia, and is often benign. However, the presence of flashes—brief bursts of light—can indicate that the vitreous is pulling on the retina, which may lead to more serious conditions, such as retinal tears or detachment.

From your description, it seems that your recent eye examination, which included a dilated fundus exam, showed no signs of retinal issues. This is reassuring, as it suggests that your retina is healthy at this time. However, the appearance of flashes, even if infrequent, warrants attention. While it is possible for retinal detachment to occur suddenly, it typically follows a period of changes, such as the development of a tear. Most retinal detachments are preceded by symptoms like increased floaters or flashes, so your vigilance is justified.

Regarding your question about whether you should return for another examination due to the flashes: if these flashes are new or have changed in frequency or intensity, it would be wise to consult your eye care provider. They can perform a thorough examination to ensure that there are no underlying issues that need to be addressed.
As for the small black or gray spots you’ve noticed on the sclera (the white part of your eye), these are often benign pigment deposits known as "conjunctival nevi" or "freckles." They can be more common in individuals with a higher number of moles or freckles on their skin, as you mentioned. While most of these spots are harmless, any changes in size, shape, or color should be evaluated by an eye care professional. Regular monitoring is advisable, especially if you have a history of skin moles.

In summary, while your current symptoms may not indicate an immediate concern, it is essential to remain vigilant. If you notice any significant changes in your vision, an increase in the frequency of flashes, or any new symptoms, do not hesitate to seek further evaluation. Regular eye examinations are crucial, especially for individuals with high myopia, as they help in early detection of potential complications. Maintaining good eye health practices, such as reducing screen time, ensuring proper lighting while reading, and taking regular breaks, can also help manage eye strain and maintain overall eye health.