Eye floaters — what causes them and do they matter?

Eye floaters are often age-related, but could be a symptom of something you need to pursue.

https://www.medicalnewstoday.com/articles/325781.php

What to know about eye floaters

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Eye floaters are dots or specks in a person’s vision that seem to float away when the person tries to look directly at them. They are made up of the vitreous of the eye, and in most cases, they are completely normal. The vitreous is the clear, gel-like substance that fills out most of the eye.

Eye floaters do not usually require treatment, as they themselves do not cause any harm to the sight. However, in some cases, eye floaters may make it difficult to see and will require removal to restore sight.

Eye floaters may also be an early sign of an underlying issue, such as damage to the retina.

Symptoms

Man looking at a sunset who may have eye floaters

Eye floaters are a normal part of the aging process.

The main symptoms of eye floaters are small areas in a person’s field of vision that seem out of place.

Floaters can take different shapes, including:

  • shadowy dots or specks
  • small lines
  • rings
  • cobweb shapes
  • other irregular shapes

They may also appear as a dark or lighter area of vision. Sometimes, the area where the floater is will look slightly blurry compared with the rest of the field of vision.

Floaters are tiny but can significantly affect the vision, as they are very close to the input of the eye.

One characteristic of eye floaters is that they seem to dart back and forth across the field of vision. Trying to look directly at a floater will cause it to move away in the direction the person looks.

When the person rests their eyes, the floaters seem to drift on their own.

Causes

Eye floaters are a natural phenomenon due to the vitreous body of the eye. The vitreous helps give the eye its round shape.

Floaters occur when this vitreous body starts to shrink. As it shrinks, little fibers can break away and become stringy. This is what doctors call vitreous detachment.

This detachment causes stringy masses of vitreous that can disrupt light coming into the retina. This casts a tiny shadow into the eye, which is what makes floaters noticeable.

Eye floaters are a normal part of the aging process. The American Society of Retina Specialists note that conditions such as vitreous detachment, which causes more floaters, are more common after the age of 60.

Everyone can get eye floaters at some point, though most people ignore them. Many may only notice them when they look at a blank, bright surface or area such as the sky.

Although they can be distracting at first, most eye floaters tend to settle down to the bottom of the eye, beneath the field of vision.

However, the American Society of Retina Specialists recommend that a person who notices sudden symptoms such as floaters get checkups with an ophthalmologist within the first few months after the symptoms appear, to check for any signs of more serious issues.

Retinal detachment

Although some floaters in the eye may be a normal part of the aging process, experiencing a sudden increase of floaters in the eye may be a sign of another issue, such as retinal detachment.

When retinal detachment occurs, it is not uncommon for people to experience other symptoms along with eye floaters. They may experience flashes of light that are not there, especially in the side of their fields of vision. They may also experience a loss of vision in the sides of their eyes.

Retinal detachment is serious and may lead to blindness without treatment. Anyone who notices a sudden and noticeable increase in floaters, along with other symptoms, should see an eye doctor immediately.

Other causes

There are also more serious causes of floaters in the eye, including:

Anyone who notices a sudden increase in eye floaters should see an eye doctor to obtain a complete diagnosis.

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