This part from the Wikipedia link on John Taylor is great: There is some evidence that Taylor operated on Handel in August 1758, in Tunbridge Wells, after whic

This part from the Wikipedia link on John Taylor is great: There is some evidence that Taylor operated on Handel in August 1758, in Tunbridge Wells, after which Handel's health deteriorated until his death in April 1759. In both cases Taylor claimed complete success.[2] Prior to performing each surgical procedure, he would deliver a long, self-promoting speech in an unusual oratorial style.[4] Dutch ophthalmologist R. Zegers mentions that "after his training, Taylor started practicing in Switzerland, where he blinded hundreds of patients, he once confessed".[5] Writer Samuel Johnson said of Taylor that his life showed "an instance of how far impudence may carry ignorance."