What are floaters?
Most people notice floaters at some point: small specks, threads or cobweb shapes that drift across your vision and move when you try to look at them. They are shadows cast by tiny clumps in the vitreous, the clear gel that fills the eye.
Longstanding floaters
Longstanding, stable floaters are common and usually harmless. Many people have had them for years, and they tend to become less noticeable over time as the brain learns to ignore them.
Changes that need same-day assessment
A sudden change is different. Any of the following may indicate a retinal tear or detachment and should be assessed promptly:
- a sudden increase in floaters, or a shower of new ones
- flashes of light, especially in the corner of your vision
- a shadow or curtain over part of your vision
If you notice these, call the clinic at +65 6694 0400 the same day. Outside clinic hours, call the 24-hour answering service at +65 6535 8833, or go to a hospital A&E with eye services.
What happens at the assessment
The examination usually involves dilating drops, which take 20 to 30 minutes to work, followed by a careful look at the retina. Imaging such as an OCT scan is done where indicated. Allow about 90 minutes to two hours for the visit, and arrange for someone to drive you home, as your vision will be blurred for a few hours after the drops.
Why prompt assessment matters
A retinal tear may be treated with laser in the clinic. A retinal detachment usually needs surgery. The assessment checks whether there is a tear or detachment and whether the central part of the retina is involved. A sudden change in floaters or flashes should not wait for a routine appointment.
Related reading
Read the floaters and flashes condition page for an overview of assessment and follow-up, or retinal tears and laser treatment for information about the procedure.