Have also seen an eye consultant who was like a mad professor, and looked like one too! This one just loved his work and research projects he was involved in and would rattle away on technical explanations of your eyes and why this and that was so, often you came out with a headache and totally bamboozled by science. I loved seeing him , even though I didn't understand half of what he said as his manner was so different from some of the conveyor belt or arrogant ones.
But they changed my clinic days so now I get to see a different one, and he's usually really harassed and defensive. But to be fair the last time. I was there , there was an old guy sitting next to me , who every time the consultant came out his office started f...ing and blinding at him in a loud voice for the amount of time he'd been waiting .