---
title: Cystoid macular edema
description: "[Cystoid macular oedema CME](https://bluefinvision.com/blog/what-is-cystoid-macular-oedema/) is swelling of the macula with multiple fluid-filled spaces. It can occur after surgery, with inflammation, or in retinal vascular disease. ## Symptoms and causes CME affects detailed central vision. - Blurred or distorted central vision…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/cystoid-macular-edema/"
updated: "2026-01-22"
category: "Conditions & Diseases"
---

# Cystoid macular edema

[Cystoid macular oedema CME](https://bluefinvision.com/blog/what-is-cystoid-macular-oedema/) is swelling of the macula with multiple fluid-filled spaces. It can occur after surgery, with inflammation, or in retinal vascular disease.

## Symptoms and causes

CME affects detailed central vision.

- Blurred or distorted central vision and difficulty reading
- Causes include post-cataract surgery, uveitis, vein occlusion, and diabetes
- OCT scans show characteristic cystic spaces in the macula
- Fluorescein angiography often reveals petaloid leakage patterns

## Treatment

Management depends on the underlying cause.

- Topical, periocular, or systemic anti-inflammatory drugs for post-surgical or inflammatory CME
- Anti-VEGF injections or steroids for vascular and diabetic causes
- Treating underlying uveitis or systemic disease
- Regular monitoring to track response and adjust therapy