Orbital Cellulitis

Definition

Orbital cellulitis is a serious infection of the bony cavity in which the eyeball sits and the muscles and soft tissues that surround the eyeball. This cavity is called the orbit. It is surrounded by sinuses. The sinuses are the hollow areas of the skull around the nose.Orbital cellulitis affects not only the eye, but also the eyelids, eyebrows, and cheeks. It causes the eyeball to have a swollen appearance. If the infection is not treated, it can lead to blindness and nerve damage of the face.
Eyeball in Orbit
Eye bone socket nerve
The cavity below the eye is a sinus, the most common place for the infection to start.
Copyright © Nucleus Medical Media, Inc.

Causes

Orbital cellulitis is caused by certain bacteria.

Risk Factors

Factors that increase your risk of getting orbital cellulitis include:
  • Age: Children are at high risk of severe infections that could result in blindness
  • Infections that spread from areas surrounding the eye, such as the eyelids, sinuses, mouth and teeth, and face
  • Infections that spread from the bloodstream
  • Injury or surgery in the area
  • Stye on the eyelid
  • Bug bite or sting to the eyelid

Symptoms

Symptoms of orbital cellulitis include:
  • Bulging eye
  • Painful eye movements
  • Tender or warm tissues around the eye
  • Swollen eyelids
  • Difficulty seeing when the eyelid is swollen
  • Fever
  • Headache
  • Runny nose
  • Double vision
  • Blurry vision

Diagnosis

Doctors can often recognize orbital cellulitis by examining your eyes, teeth, and mouth. Your medical and family history will be taken.Your bodily fluids may be tested. This can be done with:
  • Blood tests
  • Testing samples from the lining of your eye, nose, and throat
Images may be taken of your bodily structures. This can be done with:

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