Why Am I Seeing Flashes of Light in the Corner of My Eyes?

Aug, 2024 | Eye Health Info

Have you ever seen flashes of light in the corner of your eyes and wondered what it could be? Occasional flashes of light are common and can be harmless. However, in some cases, flashes of light can be a sign of a more serious issue and require immediate care. Let’s talk about why these flashes happen, what they might mean, and when you should seek treatment.  

What are these flashes? 

Flashes of light, also known as photopsia, can show up as bright spots or streaks in your vision. They might look like lightning bolts or camera flashes. These flashes can vary in brightness and length and can happen in one or both eyes.  

Sometimes those flashes might be due to something as simple as rubbing your eyes excessively or looking at bright lights. Our eyes are sensitive organs and can react strongly to external stimuli. But if these flashes persist even after resting your eyes or moving away from bright lights, it’s best to get them checked out by a professional. 

What could be causing these flashes?  

 Here are some common reasons you might see flashes of light:

1. Vitreous detachment

The vitreous is a gel-like substance inside your eye that helps keep its shape. As we age, the vitreous can shrink and pull away from the retina, causing flashes. This is called posterior vitreous detachment (PVD) and is common in people over 50.

2. Retinal detachment

A more serious issue, retinal detachment happens when the retina separates from the back of the eye. This can cause a sudden increase in flashes and may be accompanied by a shadow or curtain effect over part of your vision. Retinal detachment is an emergency and needs immediate attention.

3. Migraine aura

Some people experience visual disturbances, like flashes of light, as part of a migraine aura. These flashes usually come before a headache and can occur alongside zigzag patterns or blind spots.

4. Eye trauma

Any eye injury can cause flashes of light. This might happen if you’re hit in the eye or have a sudden jolt to the head.

5. Other eye conditions

Other conditions, like inflammation (uveitis), infections, or complications from eye surgery, can also cause flashes of light. 

When to seek help 

While occasional flashes can be harmless, some symptoms mean you should seek help right away: 

  • A sudden increase in flashes: If you notice a sudden increase in flashes, especially if you also see floaters or a shadow over your vision, get help immediately. 
  • Sudden vision changes: If you see a curtain in your vision or lose peripheral vision (or side vision), it’s time to see a professional for emergency eye care. 
  • Persistent flashes: If flashes persist or become more frequent, it’s important to get your eyes checked. 

Seeing flashes of light can be alarming, but understanding the possible causes and knowing when to seek help can make a big difference. At Walter Eye Clinic in Tinley Park, Illinois, we provide expert care and support for all your eye health concerns. We use advanced tools to figure out what’s causing your symptoms and provide the best treatment for your specific needs. If you’re experiencing flashes or any other vision changes, schedule an appointment with us today or call us immediately at (708) 532-0800 for urgent eye concerns.  

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