lidocaine
This is an anesthetic liquid that is commonly injected into the skin prior to surgical procedures. I use it most commonly with chalazion excisions or when removing a papilloma from the eyelid. We inject lidocaine inside the eye during cataract surgery to numb the iris. On occasion, I will inject the medication behind the eye when performing a retrobulbar block – these blocks are only performed prior to difficult cataract surgeries, however.