---
title: Corneal flash burns
description: "Corneal flash burns are essentially photokeratitis from intense UV exposure, commonly in welders or from sun lamps and snow reflection. They cause temporary but often severe pain. ## Symptoms and causes Discomfort usually starts several hours after exposure. - Sharp…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/corneal-flash-burns/"
updated: "2025-12-17"
category: "Conditions & Diseases"
---

# Corneal flash burns

Corneal flash burns are essentially photokeratitis from intense UV exposure, commonly in welders or from sun lamps and snow reflection. They cause temporary but often severe pain.

## Symptoms and causes

Discomfort usually starts several hours after exposure.

- Sharp pain, tearing, redness, and eyelid spasm
- Blurred vision and marked light sensitivity
- History of welding without proper shield or high-altitude sun/snow exposure
- Punctate epithelial defects on fluorescein staining

## Treatment

The cornea typically heals within 24-72 hours.

- Lubricating drops or ointment plus oral analgesia
- Short course of prophylactic antibiotic drops in some cases
- Avoidance of contact lenses until complete healing
- Education about using appropriate eye protection in future