Dilated fundus examination

In France, we had to consult an ophthalmologist to have our eyes check before going to a optical shop to have the glasses made. The last time I consulted one, she recommended me to do a dilated fundus examination once every two years because I wore glasses. Recently, I did it. Half an hour before the examination, I had to drip eye drops to dilate the pupils. It made my vision blur for 3 hours. I was not able to read anything. The result was good. There was no tear found on the inner surface of the eyes. The best thing was everything as usual was paid by social security and my mutuelle. Vive la France.