Becaue of lower back pain, I need an MRI. I've done maybe 3 or 4 hours total of metal grinding in the last 30 years, and worn safety glasses during most of it. Also, because of the direction the grind stone spns, metal round off and stone that comes off t he grindstone heads down towards my feet, not up to my face. The housing around both of my grinders keeps other metal and stone dust from heading up or towards me.
There are two chains of imaging clinics here and when I told one that I had spent about 3 hours of the last 30 years grinding, they said, "Don't worry about it. The restrictions** are for people who do it for work, day in and day out."
For unrelated reasons I had to call the second chain and the second one said, "Any grinding presents a risk. You need to have an orbital X-ray, to check for metal in your eyes, before we can do the MRI. And you need a prescription from your doctor before we can give the orbital xray. We won't do the MRI otherwise."
So now I'm trying to decide if there is any risk in my backbround. I used goggles most of the time, but not every time I repaired a screwdriver. Because a bench grinder blows the stone and metal particles down. Below my hands. The housing keeps stuff from blowing up at my eyes.
Still on ohter occasions I've gotten wood in my eyes so maybe I've gotten metal too. I've sawed some metal with a band saw, but that discharges down also. I've used a hack saw quite a few times, but grvidty makes the metal fall down, unless I was under the saw. If so, I'm almost certailn I wore goggles. or at least safety glasses. (the prohibition includes metal working also.)
The office manager said that if I had metal in my eye, as soon as I entered the MRI room, I would feel it being pulled towards the magnet, which is not an electro-magnet and is always "ON". That paper clips can be pulled out of one's hands even when you are 3 feet away.
I was actually in the bed and for 3 seconds my head was in the doughnut (the magnet or very neer the aagnet and had noticed nothing. (Of course this was the original bore MRI and my nose was only an inch from t he top and that's what I was concentrating on, once I noticed it.
Do I need the x-ray of my eyes?
As an aside.told this story to my 75-year old friend, who used to own a small factory, and his father before him, and he remembered 50 years ago getting some metal in his eye(maybe from something another employee was doing) and having to go to the Wilmer Eye Clinic, which is still here and well-known, and they had some special machine to take the filing out of his eye.