Black Dot in Vision Moves With Eye: Causes and Treatment

Have you ever noticed a small black dot or speck floating across your field of vision that seems to move as your eye moves? If so, you’re not alone. Many people experience this common visual phenomenon known as a “floater.” In this article, we’ll explore 10 causes of these moving black dots and when they might signal a more serious problem.

What are Floaters?

Floaters are small specks, spots, or squiggly lines that appear in your field of vision. They can be black, grey, or transparent, moving around as you move your eyes. Floaters are a common and usually harmless condition that most people experience at some point in their lives.

While floaters are generally harmless, they can sometimes indicate a severe underlying condition. If you notice a sudden increase in floaters, flashes of light, or other changes in your vision, you must see an eye doctor immediately.

Common Causes of Floaters
Common Causes of Floaters

10 Common Causes of Black Dot in Vision Moves With Eye

Floaters are caused by small bits of debris that float around in the vitreous humor, the clear, jelly-like substance that fills the inside of the eye. This debris can be made up of a variety of things, including:

1. Age-Related Changes in the Vitreous

The most common cause of eye floaters is a natural part of the aging process. As we get older, the jelly-like substance (vitreous) inside our eyes begins to liquefy and shrink. As the vitreous pulls away from the back of the eye, it can leave behind stringy remnants that cast shadows on the retina, appearing as floating black dots or cobwebs in our vision.

2. Posterior Vitreous Detachment (PVD)

Sometimes, the vitreous can pull away from the retina suddenly, causing a large number of floaters to appear all at once. This is called a posterior vitreous detachment (PVD). While a PVD is usually not a serious condition, it can occasionally cause a retinal tear. Symptoms of a PVD include:

  • A sudden increase in floaters
  • Flashes of light in your peripheral vision
  • A shadow or curtain-like effect in your peripheral vision

If you experience these symptoms, it’s important to see your eye doctor right away to rule out a retinal tear or detachment.

3. Retinal Tear or Detachment

In some cases, as the vitreous pulls away from the retina, it can tug on the retina hard enough to cause a tear. Fluid can then seep through the tear and lift the retina off the back of the eye, causing a retinal detachment. This is a serious condition that can lead to permanent vision loss if not treated promptly. Symptoms include:

  • A sudden increase in floaters and flashes of light
  • A shadow or curtain-like effect in your peripheral vision
  • Rapid vision loss

If you experience these symptoms, seek immediate medical attention.

4. Inflammation in the Eye

Inflammation in the back of the eye (posterior uveitis) can cause floaters. Uveitis is often associated with autoimmune disorders, infections, or exposure to toxins. Symptoms of uveitis include:

  • Eye pain
  • Eye redness
  • Light sensitivity
  • Blurred vision
  • Floaters

Treatment for uveitis depends on the underlying cause and may include eye drops, oral medications, or injections.

5. Bleeding in the Eye

Bleeding in the vitreous can cause floaters. This can be due to diabetes, hypertension, blocked blood vessels, or injury to the eye. In most cases, the blood will clear on its own within a few days to weeks. However, if the bleeding is severe or doesn’t clear, it may require treatment.

6. Eye Tumors

In rare cases, eye floaters can be caused by tumors in the eye. These tumors can be benign or malignant and can grow on the retina, in the vitreous, or on the optic nerve. Symptoms of an eye tumor include:

  • Floaters
  • Flashes of light
  • Loss of peripheral vision
  • A growing dark spot on the iris

If you experience these symptoms, see your eye doctor right away.

7. Diabetic Retinopathy

Diabetic retinopathy is a complication of diabetes that affects the blood vessels in the retina. In the early stages, it can cause floaters due to small amounts of bleeding in the eye. As the condition progresses, it can lead to more serious vision problems. Regular eye exams are crucial for people with diabetes to detect and manage diabetic retinopathy.

8. Eye Medications

Certain medications that are injected into the eye, such as those used to treat wet age-related macular degeneration (AMD), can cause air bubbles to form in the vitreous. These bubbles can appear as floaters until they are absorbed by the eye, which usually takes a few days.

9. Eye Surgeries

Floaters can also occur after certain eye surgeries, such as cataract removal or laser eye surgery. In most cases, these floaters will settle down or disappear as the eye heals.

10. High Myopia

People with high myopia (severe nearsightedness) are at increased risk of floaters. This is because high myopia is associated with thinning of the retina and early-onset posterior vitreous detachments.

5 Best Home Remedies for Black Dot in Vision Moves With Eye

1. Eye exercises

Eye exercises may help break up floaters and improve overall eye health. One exercise involves sitting in a quiet room and focusing on a near object for several seconds, then shifting your focus to a far object for several seconds.

Repeat this exercise several times, several times a day. Another exercise involves moving your eyes in different directions, such as up and down, side to side, and in circles.

2. Adequate hydration

Staying hydrated by drinking plenty of water may help reduce the appearance of floaters. This is because dehydration can cause the vitreous humor to become more viscous, making it more likely to clump together and form floaters. In addition, drinking water can help flush out toxins from the body, which may help improve overall eye health.

3. Healthy diet

Eating a healthy diet rich in antioxidants and other eye-healthy nutrients may help reduce your risk of developing floaters and other eye conditions. Some good foods for eye health include leafy green vegetables, citrus fruits, nuts and seeds, and fatty fish like salmon and tuna.

4. Reduce eye strain

Reducing eye strain by taking breaks from screens and reading material, practicing good posture, and using proper lighting can help reduce the appearance of floaters. For example, taking breaks from screens every 20 minutes, looking away from the screen, and focusing on a distant object, can help reduce eye strain.

5. Meditation and stress reduction

Meditation and other stress reduction techniques may help improve overall eye health and reduce the impact of floaters on vision. Stress can cause tension in the body, contributing to eye strain and other eye problems. Practicing meditation or other stress reduction techniques can help reduce stress and promote relaxation.

Medical Treatment for Floaters

In most cases, floaters don’t require treatment and will eventually go away on their own. However, if they’re particularly bothersome or if they’re affecting your vision, there are several treatment options available:

1. Vitrectomy

A vitrectomy is a surgical procedure that involves removing the vitreous humor and replacing it with a saline solution. This can help to remove the floaters, but it also carries risks like cataracts and retinal detachment.

2. Laser Therapy

Laser therapy can be used to break up larger floaters into smaller pieces, which are then absorbed by the eye. This can be an effective treatment for some people, but it’s not suitable for everyone.

3. YAG Laser Vitreolysis

YAG laser vitreolysis is a newer treatment option that uses a laser to vaporize the floaters without removing the vitreous humor. This procedure is less invasive than a vitrectomy and carries fewer risks, but it’s not yet widely available.

When to see a doctor?

While most eye floaters are harmless, some may indicate a more severe problem. Call your ophthalmologist or eye care provider immediately if you see eye floaters and:

  • They begin occurring more frequently, or the floater changes in intensity, size, or shape.
  • You see flashes of light.
  • You lose your peripheral (side) vision.
  • You develop eye pain.
  • You have blurred vision or a loss of vision.

Combined with eye floaters, these symptoms may be a sign of more dangerous conditions, such as:

  • Vitreous detachment – As the vitreous shrinks, it slowly pulls away from the retina. If it pulls away suddenly, it may become completely detached. Symptoms of vitreous detachment include seeing flashes and floaters.
  • Vitreous hemorrhage – Bleeding in the eye, also known as a vitreous hemorrhage, can cause eye floaters. The bleeding may be caused by an infection, injury, or blood vessel leak.
  • Retinal tear – As the vitreous turns to liquid, the gel sac will begin to pull on the retina. Eventually, the stress may be enough to tear the retina completely.
  • Retinal detachment – If a retinal tear is not treated quickly, the retina can become detached and separate from the eye. A retinal detachment can lead to complete and permanent vision loss.


Floaters are a common and usually harmless condition, but they can be a sign of a more serious underlying condition in some cases. If you notice a sudden increase in floaters or other changes in your vision, it’s essential to see an eye doctor immediately.

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