While a few floaters are common and largely harmless, a sudden shower or significant increase in the number of floaters is a warning sign that should never be ignored. It typically indicates that something has changed within the eye that requires prompt attention.
A sudden increase in floaters often accompanies a posterior vitreous detachment (PVD), particularly if the vitreous tears a blood vessel during detachment, releasing blood into the vitreous cavity (a vitreous haemorrhage). This can produce a dramatic sudden appearance of many dark floaters, dots, or even a reddish or smoky haze in the vision.
More critically, a sudden shower of floaters — particularly combined with flashes of light or a shadow in the peripheral vision — can be the first sign of a retinal tear or retinal detachment. Without urgent treatment, a retinal detachment can lead to permanent vision loss.
A sudden dramatic increase in floaters is a medical emergency. Do not wait to see if it settles. Contact an eye casualty department or The Eye Doctor immediately for an urgent assessment.
Time is critical in these situations. A retinal tear can often be treated quickly and successfully with laser treatment if caught early, preventing it from developing into a full detachment. If you notice a curtain or shadow spreading across your vision, this is even more urgent — call 999 or go directly to A&E.
Epiretinal membrane surgery removes scar tissue from the macula to reduce distortion and improve central vision. It is a safe, advanced retinal procedure with strong success rates and gradual, long-term visual improvement.
Vitrectomy is a microsurgical retinal procedure that removes the vitreous gel to treat floaters, retinal detachment, macular holes, and other sight-threatening conditions. It restores clarity and stabilises the retina with modern, minimally invasive techniques.
YAG vitreolysis is a non-invasive laser treatment that breaks up persistent floaters, restoring clearer and more comfortable vision. It is a safe alternative to vitrectomy for selected patients with well-defined, visually significant floaters.
