Which action is most appropriate when first aid is required for a chemical exposure to the eye?

Which action is most appropriate when first aid is required for a chemical exposure to the eye?

• A. Flush with lukewarm water for 15 to 30 minutes
• B. Flush with hot water for 45 minutes
• C. Flush with cold water for 3 to 5 minutes
• D. Dry the eye with a cloth

Answer: (A)

When a chemical gets in the eye, the most important first aid step is immediate irrigation to dilute and wash away the substance. Using lukewarm (tepid) water is best because it’s gentle enough to tolerate for a longer rinse without causing extra thermal damage, while still effectively diluting the chemical. Flushing for about 15 to 30 minutes gives enough time to remove residues from the surface and under the eyelids. Keep the eye open and direct the water from the inner corner toward the outer edge so the entire surface is washed. Use clean running water or saline if available, and avoid drying the eye with a cloth or rubbing it. After flushing, seek medical care, especially if pain persists, vision changes, or the chemical is unknown or caustic.

When a chemical gets in the eye, the most important first aid step is immediate irrigation to dilute and wash away the substance. Using lukewarm (tepid) water is best because it’s gentle enough to tolerate for a longer rinse without causing extra thermal damage, while still effectively diluting the chemical. Flushing for about 15 to 30 minutes gives enough time to remove residues from the surface and under the eyelids. Keep the eye open and direct the water from the inner corner toward the outer edge so the entire surface is washed. Use clean running water or saline if available, and avoid drying the eye with a cloth or rubbing it. After flushing, seek medical care, especially if pain persists, vision changes, or the chemical is unknown or caustic.