I took my wifes magnified mirror into our bedroom to have a look at my eyes and apply some drops, however, I didn't notice that the sun was low in the sky and shining through our window directly onto the mirror.
I'm pretty sure there would have been a beam of light focused on my eyes when I was apply the drops. I've now got a dark spot on both eyes but felt no pain or excessive brightness at the time.
I feel pretty damn stupid but should have thought of this before, can anyone advise.