welcome to HCM!
don't panic.its the effect of local anaesthesia given.
u will definitely come out of it after few to several hrs.which differs from pt. to pt.
u r eye are perfectly alright.
have patience
u will be fine.

Thank you for your query in HCM forum. Usually one 'shot' of 1.8 ml (1 cartridge) of local anesthesia( lignocaine) is enough to numb a tooth for crown reduction. Of course, if it is delivered properly. In some case of rare inflammatory situation little more amount injection may be required. The rate of local absorption may vary a little from person to person. So some time should be given after injection before checking the numbness. Fear or apprehension may lead to lowering pain threshold that is feeling of more pain psychologically. And the patient asks for repeated injection.It seems while giving 2nd injection your dentist missed the angle of the needle and pushed the needle little deeper which touched your facial nerve and you felt a electric shock like feeling, and as the injection poured near facial nerve you had temporary facial muscle paralysis which prevents you from closing eyes and tears drops down uncontrollably. Nothing to worry about that. This type of incident happens sometimes in a dental procedure. The eye and facial muscle comes back to normal state as soon as the action of injection is gone, roughly after 1 to 2 hours. Hope I am able to explain your query.