Fellows going to an Ophthalmologist is always good advice but at this point I would not think it necessary. In the nearly forty years I have been welding I have seen a heck of a lot of flash burns (had my share too
) and if he is up and around this quick with no worse symptoms than he is describing then his was not a really bad case. Other than some antibiotics, probably not necessary at this point, and some pain meds there is not much for a doc to do now anyway and I think in just a few hours he is going to be feeling much better. HOWEVER!!! if the symptoms get worse or there is any swelling of the surrounding skin the go to a doctor!