Flashing Lights in Vision: When to Seek Help - Ophthalmology

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Flashing lights in your vision can be concerning, especially when accompanied by other symptoms like floaters or changes in vision. Based on your description, it seems you are experiencing intermittent flashes that could be related to several factors, including the condition of your retina or the vitreous gel in your eye.
Firstly, it's important to understand what these flashes might indicate. Flashes of light, often described as "lightning" or "flashes," can occur when the vitreous gel inside the eye pulls on the retina. This is particularly common in individuals with myopia (nearsightedness) or those who have experienced changes in their eye structure. The flashes you are experiencing, especially if they occur when you are using your phone or in certain lighting conditions, could be a result of the vitreous tugging on the retina, which is not uncommon.

Given that you have previously undergone a dilated eye exam and were told there were no signs of retinal tears or detachments, this is reassuring. However, it is crucial to monitor your symptoms closely. If you notice an increase in the frequency of the flashes, or if they are accompanied by a sudden increase in floaters, a shadow or curtain effect in your peripheral vision, or a significant decrease in your vision, you should seek immediate medical attention. These could be signs of a retinal tear or detachment, which is a serious condition that requires prompt treatment.

Regarding your concern about whether the flashes are related to your phone usage, it is possible that the bright light from the screen could temporarily affect your vision, especially if you are transitioning from a darker environment to a brighter one. This phenomenon is known as "photostress," where the eye struggles to adjust to sudden changes in light intensity. However, if the flashes persist or worsen, it is essential to discuss this with your eye care professional.

In terms of when to seek help, here are some guidelines:
1. Increased Frequency: If you notice that the flashes are becoming more frequent or intense.

2. Accompanying Symptoms: If you experience new floaters, especially if they appear suddenly, or if you see a shadow or curtain in your vision.

3. Vision Changes: If you have a sudden decrease in vision or difficulty focusing.

Since you have a follow-up appointment scheduled for next week, it would be wise to keep that appointment and discuss your recent symptoms with your doctor. They may want to perform additional tests to ensure that everything is stable. If you feel anxious about your symptoms before your appointment, it is always better to err on the side of caution and seek immediate care, especially if you experience any alarming changes.

In summary, while occasional flashes of light can be benign, they warrant careful monitoring. Keep track of any changes in your symptoms and communicate openly with your eye care provider about your concerns. Your vision health is paramount, and staying informed and proactive is the best approach.