Why do onions make us cry? When onions are cut, an enzyme called sulfoxide lyase and sulfuric compounds are released from the broken cells. When exposed to air, they react with one another to form a vapor called thiopropanal sulfoxide. As this vapor evaporates, it irritates our eyes and causes us to cry. Kitchen folklore remedies such as burning candles or matches, slicing onions under water and freezing the onions before cutting are comical at best. The two methods proven most effective in preventing onion-cuttin tears are wearing goggles or contact lenses.
·Comfortable foam seal protects eyes from irritating onion vapors
·Anti-fog lenses offer maximum clarity and eye protection
·Unisex design fits most face shapes, but will not fit over glasses
·Storage case keeps goggles clean
These goggles are not designed for use as safety glasses nor do they have corrective lenses.