Floaters

Have you ever noticed thread-like or amoeba-shaped objects floating in your field of vision?

These strangely shaped objects do not disappear, even when you move your eyes or blink.

This condition is known as “eye floaters” (or hibunsho in Japanese) and occurs due to age-related changes in the vitreous body of the eye.

The vitreous body is a jelly-like substance that fills the inside of the eyeball. As we age, this substance can liquefy and develop opacities, which appear as floating objects in our field of vision.

While these floaters can take on various shapes—depending on the specific changes or the nature of the opacities within the vitreous body—they are all classified as eye floaters. In most cases, this is simply a natural part of the aging process and not a sign of disease. Generally, unless the symptoms worsen suddenly, there is no need for concern.

However, similar symptoms can also be caused by serious eye conditions—such as a retinal tear, retinal detachment, or uveitis—which require prompt medical attention.

For instance, if you notice that the shape of the floaters changes, their number increases suddenly, or your vision begins to decline, please consult an ophthalmologist.

It is important to remain aware, as some cases may require medical treatment.

Picture of 河田 一晃

河田 一晃

Kazuaki Kawada