Thanks for the tip, Tony - and best wishes for your speedy recovery!
(AFAIK: If I remember correctly, the cornea has the fastest recuperative capacity of all our organs)

I acquired an "empirically well-grounded phobia" against foreign objects in the eye over 40 years ago,
when fixing up aŽ73 Vauxhall Viva I visited the hospital 3 times in 2 weeks for the very same reason.
Got my skull belted to a lathe-like contraption with a magnetic drill and a fierce light. Not my idea of fun.

The Doc politely told me the last time: "Don't you think you've had enough of this now, lad?"
Improved the fit of the glasses each time. Meticulous with those ever since.
I haven't hitherto gone back there, but your clever tip is welcome for some time when I might run out of luck.

Near-OT: Some of us can't even get an MRI scan of our heads if we should need one,
due to those small metal fragments who've worked themselves to the back of the eyes thru the years.
An ordinary x-ray to determine that is used over here to avoid those
(thru the alternating & strong MRI field) resonating magnetic particles damaging the 2nd Cranial nerve.
Pretty considerate, if you think about it. Bummer about the canceled MRI, though.

ATB!
Johan