---
title: What is limbal stem cell deficiency?
description: "Limbal stem cell deficiency occurs when the cells that normally renew the corneal surface are damaged or lost. ## Why limbal stem cells matter These cells sit in a ring at the edge of the cornea called the limbus. When…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/what-is-limbal-stem-cell-deficiency/"
updated: "2025-12-31"
category: "Conditions & Diseases"
---

# What is limbal stem cell deficiency?

Limbal stem cell deficiency occurs when the cells that normally renew the corneal surface are damaged or lost.

## Why limbal stem cells matter

These cells sit in a ring at the edge of the cornea called the limbus. When they fail, the surface cannot repair properly, leading to pain, clouding, and blood vessels growing onto the cornea.

- Common causes include chemical burns, severe inflammation, or genetic conditions
- Patients may notice chronic redness, light sensitivity, and reduced vision
- The surface can become irregular, causing constant discomfort
- Repeated breakdown of the epithelium raises infection risk

## Specialist treatment options

Limbal stem cell deficiency is complex and usually managed in a tertiary corneal clinic. The aim is to restore a healthy surface and maintain comfort as much as possible.

- Treatment may include lubricants, bandage lenses, and control of inflammation
- Surgery can transplant limbal stem cells from the patient or a donor
- Long-term follow-up is needed to watch for rejection or recurrence
- Protective eyewear and avoiding further chemical injury are important