Floaters and flashes

Most floaters are harmless, but a sudden shower of new ones, or flashing lights, can be the first sign of a retinal tear. The only way to tell the difference is a dilated examination, and a tear treated early usually prevents a detachment.

What's Involved

Dilated retinal examination — A full check of the peripheral retina where tears usually begin.
Widefield imaging — Documented images so new changes can be identified at your next visit.
Urgent referral — Immediate escalation to retinal treatment if a tear or detachment is found.

When to Come In

A sudden increase in floaters — New spots, cobwebs, or a shower of dark specks.
Flashes of light — Brief arcs of light, especially in the dark or with eye movement.
A curtain or shadow — Any dark area moving across your field of vision, which is an emergency.

This content is for general information only and isn't medical advice. Talk with a qualified provider about your own situation. If you have a medical emergency, call 911.