He used to lie to the drs and memorised the letter charts for his tests. The UFC must have told the drs to just go along with it, cos there is no way they couldn't tell he was blind in one eye.
Yeah, clearly something changed with Povetkin. I remember his body shape changing and him having a run of brutal KO's when previously he looked pudgy and he wasn't a big hitter. If he stopped guys, it was usually through accumulation.
ITA - International testing agency. He was actually busted by WADA and the case was taken up by the ITA. Why it took 11 years to ban him is anyone's guess. He already served a 1 year ban in 2016 for Meldonium and Osterine.