Floaters and flashes of light in the eyes
Evaluation of the condition of the vitreous body and retina in cases of new floaters or flashes of light.
Most floaters are harmless and reflect natural changes in the vitreous gel. But when they are new, when their number rises sharply, or when flashes of light appear alongside them, the vitreous and the peripheral retina need to be assessed — not least to rule out a retinal tear or detachment. That is why this page covers both the floaters themselves and the retinal tears and detachments that can cause them.
Floaters and flashes
Floaters are shadows caused by natural changes in the vitreous gel. Many are benign, and the brain often adapts over time.
When it is urgent
A same-day appointment is necessary if you notice:
- a sudden increase in floaters
- flashes of light
- a “curtain” or shadow in vision
- a “soot” or “rain” of black dots
What we do
Proper evaluation requires a dilated retinal examination, including careful assessment of the peripheral retina. We explain your risk level and follow-up needs. If a tear is found, we arrange timely referral for laser treatment.
Retinal tears and detachment
The retina has no pain receptors, so serious disease can progress quietly. A retinal tear can allow fluid to pass beneath the retina, leading to retinal detachment, which is an ophthalmic emergency.
Risk factors
- high myopia;
- age-related vitreous changes;
- trauma;
- prior eye surgery (such as cataract surgery);
- peripheral retinal degeneration;
- family history.
Warning signs
- flashes;
- sudden onset of new floaters;
- a curtain or shadow in vision;
- sudden vision loss.
Book an emergency visit if you notice a curtain, shadow, or rapid visual changes.
Diagnosing a retinal tear
Retinal tears and detachments are diagnosed clinically by dilated fundus examination with careful peripheral retinal assessment.
Our role includes early detection, urgency assessment, and rapid referral to specialized care when needed.
