Condition

Endophthalmitis (infection inside the eye)

Medical reviewer Mr Mohamed Mohyudin, Consultant Ophthalmic SurgeonArticle reviewed

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Endophthalmitis at a glance

Side-view diagram of the eye with the vitreous gel and front chamber highlighted: the parts of the eye involved in endophthalmitis.
Where it affects the eye: Vitreous gel and front chamber. Simplified side view of the eye. It shows location, not how severe a condition is.
Part of the eye
Vitreous gel and front chamber
Common signs
  • Increasing pain and redness after eye surgery
  • Rapidly worsening vision
  • Swelling of the eyelids
  • Floaters and light sensitivity
Condition group
Retina and optic nerve
Medical code (ICD-10)
H44.0

What is endophthalmitis?

Endophthalmitis is infection of the vitreous gel and tissues inside the eye. Unlike conjunctivitis on the surface, it threatens vision rapidly and needs emergency specialist care.

Warning signs of endophthalmitis

Symptoms often develop within days of surgery or injury.

  • Increasing pain and redness after eye surgery
  • Rapidly worsening vision
  • Swelling of the eyelids
  • Floaters and light sensitivity

What causes endophthalmitis?

It is most associated with cataract surgery, other intraocular surgery, injections into the eye, or trauma that breaches the eye wall. Sterile technique makes it rare, but when it occurs prompt treatment is critical.

How is endophthalmitis treated?

Emergency hospital care includes samples to identify organisms and antibiotics injected into the eye, sometimes with vitrectomy surgery to remove infected gel. Outcomes are better with immediate treatment.

Frequently asked questions

Is endophthalmitis an emergency?

Yes. Worsening pain, redness and vision loss after eye surgery or injury needs emergency hospital eye care immediately.

How common is endophthalmitis after cataract surgery?

It is rare thanks to modern sterile techniques, but when it happens it is serious, which is why any sudden worsening after surgery must be reported at once.

Can endophthalmitis be cured?

Prompt treatment with injected antibiotics and sometimes surgery can save vision in many cases, but delay significantly worsens outcomes.

Your next step

Take this to your appointment

Write down what has changed, when it started, your current medicines and the questions you want answered. Take these to your eye-care appointment.

Sudden loss of sight, severe eye pain or a dark curtain across vision needs immediate assessment. Do not wait to complete a worksheet.

Sources for this information

These references support the information on this page. Follow the linked source for its full context.