Do I Need a Dilated Eye Exam After Seeing Flashing Lights? - Ophthalmology

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Experiencing flashing lights in your vision can be concerning, especially for individuals with a history of high myopia or other eye conditions. Given your situation, it is understandable that you are anxious about the possibility of retinal tears or detachment.
Flashing lights, or photopsia, can occur for various reasons, but in the context of high myopia, it is often associated with changes in the vitreous gel that fills the eye. As we age or due to the effects of myopia, the vitreous can pull away from the retina, leading to the sensation of flashes. While this is often benign, it can also indicate more serious conditions like retinal tears or detachments, which require immediate attention.

You mentioned that you recently had an eye examination where the doctor did not use dilation but instead employed a slit lamp examination. While slit lamp exams are useful for assessing the anterior segment of the eye and can provide some information about the retina, they may not give a complete view of the peripheral retina where tears or detachments are more likely to occur. Dilation allows for a more thorough examination of the retina, enabling the doctor to see areas that might be missed during a non-dilated exam.

Since you are experiencing flashing lights and have a history of high myopia, it is prudent to consider a dilated eye exam. Even if your recent examination did not reveal any issues, symptoms can change over time, and new developments may arise. If you continue to experience flashes or if new symptoms develop, such as an increase in floaters or a shadow in your vision, it is essential to seek further evaluation.

In your case, it would be advisable to follow up with your eye care provider and express your concerns about the flashing lights. You can ask for a dilated examination to ensure that your retina is healthy and to rule out any potential issues. It is better to err on the side of caution, especially when it comes to your vision.

Additionally, if you notice any sudden changes in your vision, such as a significant increase in flashes, new floaters, or a curtain-like shadow over your vision, you should seek immediate medical attention. These could be signs of a retinal detachment, which is a medical emergency.

In summary, while your previous examination may have been reassuring, your ongoing symptoms warrant a more comprehensive evaluation. A dilated eye exam can provide peace of mind and ensure that any potential issues are identified and managed promptly. Remember, your vision is invaluable, and taking proactive steps to protect it is always a wise choice.