Can onions cause blurry vision? The truth about onion fumes and your eyesight
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4 min read
The pungent aroma of onions is a familiar kitchen staple, but the resulting tears and hazy sight are less welcome. When you cut an onion, it releases a volatile sulfur-based chemical that causes temporary eye irritation and a reflex tear response. This leads to the answer that yes, onions can cause blurry vision, but it is typically harmless and short-lived.
