What causes flashing lights in vision and what should I do?

Symptom Database

Flashing lights in vision can be a concerning symptom that many people experience at some point in their lives. These lights can appear as flickering, shimmering, or flashing spots or lines in your field of vision. While they can be alarming, they are often harmless and temporary. However, in some cases, flashing lights in vision can be a sign of a more serious underlying condition. In this article, we will explore the various causes of flashing lights in vision and what you should do if you experience them.

What Causes Flashing Lights in Vision?

There are several potential causes for flashing lights in vision. Some of the most common include:

Migraine Headaches

One of the most common causes of flashing lights in vision is a migraine headache. Migraines can cause a variety of visual disturbances, including flashing lights, blind spots, and zigzag patterns. These visual symptoms, known as an aura, typically occur before the onset of the headache itself. If you experience flashing lights in conjunction with a severe headache, it is important to consult with a healthcare professional for proper diagnosis and treatment.

Retinal Detachment

Another potential cause of flashing lights in vision is a retinal detachment. The retina is the light-sensitive tissue at the back of the eye, and when it becomes detached, it can cause a range of visual symptoms, including flashing lights. Other symptoms of retinal detachment may include floaters, blurred vision, and a curtain-like shadow over your visual field. If you suspect a retinal detachment, it is crucial to seek immediate medical attention, as this condition can lead to permanent vision loss if left untreated.

Posterior Vitreous Detachment

Posterior vitreous detachment (PVD) occurs when the gel-like substance in the back of the eye begins to pull away from the retina. This common age-related condition can cause flashing lights as the gel tugs on the retina. PVD is usually harmless and does not require treatment. However, if you experience a sudden increase in floaters or a curtain-like shadow in your vision, it is important to consult with an eye specialist to rule out any complications.

Other Causes

Flashing lights in vision can also be caused by other factors, such as:

  • Eye strain
  • Medication side effects
  • Low blood pressure
  • Head trauma
  • Retinal migraine

If you are unsure about the cause of your flashing lights, it is always best to consult with a healthcare professional for a proper evaluation.

What Should I Do if I Experience Flashing Lights in Vision?

If you experience flashing lights in vision, it is important to take the following steps:

1. Remain Calm

While flashing lights can be alarming, it is essential to stay calm and avoid panicking. In many cases, flashing lights are harmless and temporary.

2. Assess Your Symptoms

Take note of any other symptoms you may be experiencing, such as headaches, blurred vision, or floaters. This information will be helpful when discussing your symptoms with a healthcare professional.

3. Rest Your Eyes

If your flashing lights are due to eye strain or fatigue, taking a break and resting your eyes can help alleviate the symptoms. Close your eyes and relax for a few minutes, or try using a warm compress to soothe your eyes.

4. Seek Medical Attention

If you experience flashing lights in conjunction with severe headaches, eye pain, or sudden changes in vision, it is crucial to seek immediate medical attention. These symptoms may indicate a more serious underlying condition that requires prompt treatment.

5. Follow Medical Advice

If a healthcare professional diagnoses the cause of your flashing lights, it is important to follow their advice and treatment plan. This may include medication, lifestyle changes, or further diagnostic tests.

Conclusion

Flashing lights in vision can be a disconcerting symptom, but they are often harmless and temporary. However, it is important to be aware of the potential underlying causes and seek medical attention if necessary. By remaining calm, assessing your symptoms, and following medical advice, you can effectively manage and address flashing lights in vision. Remember, your eye health is crucial, so never hesitate to consult with a healthcare professional if you have any concerns.

Haroon Rashid, MD
Rate author
Urgent Care Center of Arlington, VA
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