FDA Updates Safety Guidelines for Frozen Eyewash Use

Imagine this scenario: In an emergency, you reach for eyewash to rinse your eyes, only to discover it has frozen. Is it still safe to use? Does freezing affect its effectiveness or safety?

Eyewash, a staple in first aid kits, is designed to flush out foreign particles, chemicals, or irritants from the eyes. Proper storage is critical, particularly avoiding exposure to extreme temperatures. Safety Data Sheets (SDS) typically recommend keeping eyewash away from excessively hot or cold environments.

If eyewash freezes but the container shows no signs of leakage, the product itself is generally considered intact. Freezing alone does not degrade the chemical composition or reduce its efficacy. However, the primary concern lies in the sterility of the solution.

Water expands when frozen. If the freezing process causes cracks, ruptures, or other damage to the container (such as the bottle or cap), the eyewash must be discarded immediately. Compromised packaging breaks the sterile seal, potentially allowing bacteria or microorganisms to contaminate the solution, rendering it unsafe for eye irrigation.

• Inspect the container: Carefully examine the bottle, cap, and other components for cracks, breaks, or signs of leakage.
• Check the solution: If the eyewash appears cloudy or contains visible particles—even if the container is undamaged—do not use it.
• Prioritize safety: When in doubt about sterility, replace the eyewash to ensure safety during emergencies.

To guarantee eyewash remains effective when needed, store it in a cool, dry place away from direct sunlight. Avoid prolonged exposure to freezing temperatures. Regularly check expiration dates and replace outdated products promptly.

In summary, the usability of frozen eyewash depends on container integrity and sterility. During emergencies, always prioritize using a safe, reliable solution to protect eye health.