everyone knows cutting onions irritates your eyes and makes you tear up, but do you know why does that happen?
it's because cutting onions releases gaseous chemical compounds, which upon coming into contact with the water present in your eyes, create SULFURIC ACID, a highly corrosive acid (capable of dissolving metals, let alone flesh)
every time you cut onions without wearing eye protection until this point has caused progressive, irreversible damage to your eyes