Are Persistent Flashes or Waves in Vision Harmless? - Ophthalmology

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Persistent flashes or waves in vision can indeed be concerning, and it's understandable that you might feel anxious while waiting for your appointment. Let's break down the potential causes and implications of these symptoms, as well as the appropriate steps to take.


Understanding Persistent Flashes and Waves
1. Common Causes:
- Vitreous Degeneration: As we age, the vitreous gel in our eyes can shrink and pull away from the retina, leading to symptoms like flashes of light or floaters (similar to what you experience with floaters). This is often a benign process and is commonly referred to as posterior vitreous detachment (PVD).

- Retinal Issues: While many cases of flashes are harmless, they can sometimes indicate more serious conditions, such as retinal tears or detachments. These conditions can lead to vision loss if not addressed promptly.

2. Differentiating Symptoms:
- If the flashes are brief and occur sporadically, they may be related to vitreous changes. However, if they are persistent, frequent, or accompanied by other symptoms like a sudden increase in floaters, shadows in your vision, or a curtain-like effect, these could be signs of a more serious issue that requires immediate attention.

3. Visual Snow Syndrome: In some cases, individuals may experience a phenomenon known as visual snow, where they see persistent flickering or "static" in their vision. This condition is not fully understood and is generally considered benign, but it can be distressing.


When to Seek Help
- General Eye Clinic vs. Specialty Hospital:
- Most general ophthalmology clinics are equipped to perform comprehensive eye exams, including dilated fundus examinations, which can help identify issues like retinal tears or detachments. If your symptoms are persistent and concerning, it’s advisable to visit a clinic that can perform these evaluations.

- If your general eye doctor suspects a more complex issue or if they cannot determine the cause of your symptoms, they may refer you to a specialized center or a larger hospital with advanced diagnostic capabilities.


Managing Anxiety While Waiting
1. Stay Calm: It’s important to remember that many cases of flashes and waves are benign. Keeping a level head can help reduce anxiety.

2. Monitor Symptoms: Keep track of any changes in your symptoms. Note the frequency, duration, and any accompanying visual disturbances. This information can be helpful for your doctor.

3. Avoid Strain: Try to avoid activities that may strain your eyes, such as prolonged screen time or intense focus on small objects, until you can see a doctor.


Conclusion
In summary, while persistent flashes or waves in your vision can sometimes be harmless, they can also indicate underlying issues that require attention. It’s crucial to have a thorough examination by an eye care professional to rule out any serious conditions. Given your history of high myopia and floaters, it’s wise to be vigilant about any changes in your vision. If you experience any sudden changes or worsening symptoms, seek medical attention promptly. Remember, early detection and intervention are key to maintaining eye health.