---
title: What causes green discharge?
description: "Green eye discharge suggests a heavy bacterial component, sometimes involving organisms like Pseudomonas. It is often thick, copious, and concerning. ## Serious Associations Contact lens-related bacterial keratitis can produce greenish pus with pain, redness, and rapid vision loss. Severe conjunctivitis,…"
url: "https://bluefinvision.com/knowledge-base/topics/symptoms-signs/what-causes-green-discharge/"
updated: "2025-12-12"
category: "Symptoms & Signs"
---

# What causes green discharge?

Green eye discharge suggests a heavy bacterial component, sometimes involving organisms like Pseudomonas. It is often thick, copious, and concerning.

## Serious Associations

Contact lens-related bacterial keratitis can produce greenish pus with pain, redness, and rapid vision loss. Severe conjunctivitis, dacryocystitis, and orbital cellulitis may also show green discharge depending on the infecting organism.

- Green discharge nearly always warrants urgent medical attention
- Corneal ulcers can progress quickly and threaten sight
- Immunocompromised patients are particularly vulnerable to aggressive infections
- Contaminated contact lens cases and solutions are common sources

## Urgent Management

Intensive antibiotic therapy, often using fortified drops, may be required. Hospital admission is sometimes needed for close monitoring and systemic treatment.

- Immediate cessation of contact lens wear is essential
- Swabs and cultures guide targeted antibiotic choice
- Delay in treatment significantly worsens prognosis
- Education about lens hygiene and replacement reduces recurrence risk