Flashes and Floaters
Flashes and floaters are common visual symptoms that many people experience at some point in their lives. While they are often harmless, they can sometimes indicate a serious underlying eye condition that requires urgent attention. At Sydney Retina Clinic & Day Surgery, our experienced ophthalmologists provide prompt assessment and expert care for patients experiencing flashes and floaters. Early diagnosis is essential to rule out sight-threatening conditions and protect long-term vision.
What Are Flashes and how can you identify them?
Flashes look like brief flickers or streaks of light and occur when the vitreous pulls on the retina. While occasional flashes and floaters are common, a sudden increase can signal a retinal tear or detachment. A retinal detachment is a serious condition and needs to be treated as soon as possible. Warning signs include many new floaters, frequent flashes, a shadow in the peripheral vision, or a curtain-like loss of vision.
What Are Floaters and how can you identify them?
Floaters appear as small specks, dots, lines or cobwebs drifting across your vision. They are caused by tiny clumps within the vitreous gel inside the eye, which cast shadows on the retina. Floaters are most noticeable against plain backgrounds and often become more common with age. As the vitreous naturally shrinks, it may pull away from the retina. This is called a posterior vitreous detachment (PVD). In some patients a PVD has no symptoms, but a few people notice flashes and floaters. PVD is usually harmless and often requires no treatment.
Symptoms That Require Urgent Eye Assessment
Not all floaters are dangerous, but certain symptoms should never be ignored. A rapid increase in the number of floaters is a key warning sign. Flashes of light that persist or worsen over time also require assessment. Loss of peripheral vision or the appearance of a dark area in vision may indicate retinal detachment and should be treated as urgent.
Diagnosis and Treatment Options
An eye examination with dilation and retinal imaging is used to assess the cause of flashes and floaters. Most cases need no treatment, but retinal tears may require laser treatment, and severe floaters can be treated with vitrectomy.
Flashes and Floaters Frequently Asked Questions
Are flashes and floaters normal as you get older?
Yes, they are common with ageing, but sudden changes should always be checked.
Do floaters ever go away completely?
Floaters may become less noticeable over time as the brain adapts, but they do not usually disappear entirely.
Can flashes and floaters cause blindness?
They do not cause blindness themselves, but they can be a sign of serious conditions that may lead to vision loss if untreated.
Should I see an ophthalmologist urgently for flashes and floaters?
Yes, especially if symptoms are sudden, worsening or accompanied by vision loss.
If you notice sudden flashes, new floaters or changes in your vision, contact 02 9221 3755 immediately to arrange an urgent retinal assessment with our experienced specialists.
