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Do You See Strange Floating Objects in Front of Your Eyes?

Written by
Dr. Manjunath Natarajan
and medically reviewed by iCliniq medical review team.

Published on Jun 06, 2018 and last reviewed on Sep 07, 2018   -  3 min read

Abstract

Abstract

If you see strange floating objects in front of your eyes, then probably you may be suffering from problems in the posterior or the back segment of your eyes. This article aims to shed light on the very basic mechanisms of the diseases which cause these problems and what steps you can undertake at home to prevent these disorders.

Do You See Strange Floating Objects in Front of Your Eyes?

Do you see floating objects in front of your eyes? If yes, you may be suffering from problems in the posterior or the back segment of your eyes. The posterior segment of the eye includes the retina, which is the nerve of your eye, the structure responsible for the ability to see and the vitreous humor, a semisolid gel which maintains structure and stability of the eyeball.

These floating objects or 'floaters' as they are called in medical terminology can arise due to a variety of causes. These usually appear as dark lines or circles in the visual field which seem to move with the movements of the eyes. They are most often seen against a bright background and are more obvious in sleep-deprived individuals.

The most common causes with their mechanisms of producing floaters are listed below:

1. Dry eye

The tear film is a very dynamic structure. Its thickness being 500 microns, it can outperform the best lubricants and osmoprotective agents hands down. But, in patients with tear film disorders especially chronic computer users, the tear film thins down and the accumulated debris from atmospheric dust tend to deposit on the ocular surface. This gives rise to a sensation that there is something moving in front of the eye. The problem, although simple to explain, is hard to get rid of.

The most commonly used over-the-counter lubricants, although easily available and reduce the dry sensation, fail to ever reach the delicate balance of hydration, visual performance, and nutrient support of the natural tears. But a majority of the patients treated, sooner or later, will find relief or a lessening in the intensity of symptoms.

Good preventive measures are to use the 20-20-20 rule and blink eyes more frequenty than usual.

2. Cataract

Cataract can easily be labeled as the most ubiquitous age-related disorder of humanity. Although it most commonly presents with a decrease in the amount of sharpness or clarity in your vision, it has also been well known to cause several other disorders of vision such a glaring, especially during night driving, colored halos around point sources of light and also floaters. Although seeing floaters as the primary complaint in cataracts is rare, cataract would still dominate as significant causes of floaters given the universal nature of cataracts in all races.

Biochemically, cataract is simply a chemical reaction causing age-related loss of lens protein transparency. Floaters occur when this loss of transparency is non-uniform, that is, certain parts opacify earlier than the surrounding parts. At this instant of time, the opaque parts stand out in a sea of transparent lens and give the patient a feeling that there is something moving inside the eye.

Cataract is a curable disorder, the only treatment being surgery. Although no preventive measures are known, yearly visits to ophthalmologists can help in early diagnosis and management.

3. Vitreous hemorrhage

Ever wondered why the eye is transparent while the rest of our body is not? The answer to this lies in our body's ingenious embryological development. During development of the eye, unlike other parts of our body, the blood vessels are segregated very rigorously and hence only come to occupy certain areas of the eye, and the other parts of the eye get nourishment from these structures.

This strict segregation of blood in the eye, also called blood ocular barrier, is essential for the clarity of vision. The problem with vitreous hemorrhage is, there is a breakdown in the blood-ocular barrier causing blood to accumulate in places it normally should not be seen in.

The conditions which may cause vitreous hemorrhage are several, but the most noteworthy among them is diabetic retinopathy. Diabetic retinopathy causes the development of fragile new abnormal vessels which leak out blood in advanced cases.

As the vitreous hemorrhage only occurs in advanced disease, a chance of recovering normal visual acuity is very low to absent. Curative procedures like laser photocoagulation and intravitreal injection can only prevent the condition from worsening and will not improve the present vision.

The only good preventive advise is to keep sugars in good control.

4. Retinal detachment

This disorder produces the most dramatic pattern of symptoms including numerous floaters known characteristically in medical terms as 'shower of dots' and severe loss of visual ability which starts as a sudden 'falling of curtains'. As previously described, the floaters are numerous and are blood particles and retinal pigments which have been dispersed in the vitreous due to the retina which has been severed away in force.

The main mechanism here is the formation of small tears in the retina, most commonly due to high minus powers. The treatment options include retinal banding and laser photocoagulation, once again being palliative and no improvement in vision can be expected.

Good preventive measures include getting eyes checked once a year with your ophthalmologist.

Take home points -

  1. Floaters are usually due to a disorder of the back portion of the eye.
  2. They can be due to a variety of causes.
  3. Prevention is by good sugar control and yearly follow up with the ophthalmologist.

For more information consult an eye care ophthalmologist online --> https://www.icliniq.com/ask-a-doctor-online/eye-care-ophthalmologist

Last reviewed at:
07 Sep 2018  -  3 min read

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