Flash and Floaters: What They Mean for Your Vision

Have you ever noticed flashing lights or floating specks in your vision? While these symptoms can be harmless, they may also indicate an underlying retinal condition that requires attention.

Common Causes of Flashes and Floaters

• Posterior Vitreous Detachment (PVD) – The vitreous, a gel-like substance in the eye, naturally pulls away from the retina over time. This process can cause flashes of light and the appearance of new floaters.
• Retinal Tears or Detachments – In rare cases, the vitreous may pull on the retina, leading to a tear or break. If left untreated, this can result in a retinal detachment, which is a medical emergency.
• Migraine Auras – Some individuals experience flashing lights or zigzag patterns before a migraine headache. These visual disturbances typically last 10-15 minutes and resolve on their own.
• Normal Aging Process – Floaters are often caused by natural changes in the vitreous as we age. They may appear as specks, lines, or cobwebs that move with eye movement.

When to Seek Medical Attention

While occasional floaters are normal, sudden or persistent flashes may indicate a serious issue. Contact an ophthalmologist immediately if you experience:

• A sudden increase in floaters
• Bright flashes of light in your peripheral vision
• A shadow or curtain blocking part of your vision

Protecting Your Vision

Regular eye exams are essential for detecting and managing retinal conditions. If you notice changes in your vision, schedule an appointment with Greater Houston Eye Consultants today. Our specialists provide advanced diagnostics and personalized treatment plans to safeguard your eyesight.