What are flashes and floaters?
Both are usually caused by changes in the vitreous, the clear gel that fills the inside of the eye. As the gel shrinks with age it casts small shadows on the retina, which you see as floaters, and it can tug on the retina, which you see as brief flashes of light.
Most of these changes are harmless and settle as the brain learns to ignore them. Occasionally the gel pulls strongly enough to create a tear in the retina, and that is the situation an examination is designed to rule out.
When is it urgent?
Seek urgent assessment if you notice any of the following:
- Many new floaters appearing at once
- Flashes of light
- A shadow or curtain moving across your vision
- A sudden decrease in vision
A retinal tear treated early is a far smaller problem than a detachment treated late. If in doubt, have it looked at the same day.
How we can help
We perform a dilated retinal examination together with imaging to determine the cause. Where a tear is found, laser can usually be carried out promptly.
If surgery is needed, we will explain the options clearly and coordinate your care with the appropriate surgical team.
