I was visiting Paris, and started seeing a floater in my vision, with flashes occasionally. When I…read moregoogle it, I was warned that it could be a detached retina. joint Vision Paris was close to my hotel, so when I went in there, they were so helpful and kind, and called an ophthalmologist friend of theirs and booked an emergency appointment with him. He was also very kind and helpful, did some tests, and found out it was not a problem. He didn't charge much, either! I felt so relieved and grateful for their help. I highly recommend them!