Orbital Cellulitis


Orbital cellulitis is an infection. It affects the muscles and tissues around the eye.

If not treated, it can lead to blindness and nerve damage in 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.


Bacteria cause the infection. They may enter from:

  • Broken skin—due to an injury to the area
  • An infection in another part of the body—like the sinuses or mouth

Risk Factors

This infection is more common in children. Things that raise the risk are:

  • Sinus or tooth infections
  • Infection of the bloodstream
  • Injury or surgery in the area


Symptoms of orbital cellulitis are:

  • Vision problems
  • Problems moving the eye
  • Bulging eye
  • Pain and redness around the eye
  • Swollen eyelids
  • Fever
  • Headache
  • Tiredness


The doctor will ask about your symptoms and health history. A physical exam will be done. The doctor will check the eyes, teeth, and mouth. This may be enough to make a diagnosis.

Tests may include:

  • Blood tests
  • Fluid samples from the eye, nose, and throat

Images can show how far the infection has spread. Tests may be:


Orbital cellulitis can get worse fast. A hospital stay is often needed.

Medicines will be given, such as:

  • Antibiotics—to treat the infection
  • Diuretics or eye drops—to help decrease pressure in the eyeball
  • Corticosteroids pills—to reduce inflammation, swelling, and pain

Pus may need to be drained. It may be taken from the sinus or eye area.


This problem may be prevented by treating sinus or dental infections right away. The Hib B vaccine may also help protect children.


National Eye Institute (NEI)


Canadian Ophthalmological Society


Distinguishing periorbital from orbital cellulitis. American Family Physician website. Available at:
...(Click grey area to select URL)
Accessed February 4, 2021.
Jiramongkolchai P, Lander DP, et al. Trend of surgery for orbital cellulitis: An analysis of state inpatient databases. Laryngoscope. 2020;130(3):567-574.
Orbital cellulitis. EBSCO DynaMed website. Available at:https://www.dynamed.com/condition/orbital-cellulitis . Accessed February 4, 2021.
Last reviewed September 2020 by David Horn, MD
Last Updated: 2/4/2021

EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

To send comments or feedback to our Editorial Team regarding the content please email us at healthlibrarysupport@ebsco.com. Our Health Library Support team will respond to your email request within 2 business days.