Sudden new floaters, flashes or a curtain-like shadow need immediate attention.
Know the warning signs
A sudden shower of new floaters, flashes of light or a dark curtain or shadow across your vision can signal a retinal tear or detachment. Seek urgent eye care immediately or go to an emergency department. Do not wait for routine clinic opening hours.
What are floaters?
Floaters may look like small dots, threads or cobwebs moving in your vision. Many arise from age-related changes in the gel inside the eye. A sudden increase, especially with flashes or a shadow, needs urgent assessment to rule out a serious cause.
Why the urgency?
Retinal detachment means the retina has pulled away from its normal position. It can lead to permanent vision loss. An urgent dilated eye examination helps identify the problem; prompt treatment can help protect vision.
Describe what changed
Tell the treating team when it started, which eye is affected and whether you have flashes, a shadow or reduced vision. Mention recent injury or eye surgery. These details help the team understand the situation, but gathering records should not delay urgent care.
Sources & further reading
Sources consulted: 17 October 2026.
For sudden or serious vision changes, seek urgent eye care immediately. This website does not provide emergency care or monitor appointment requests.
