He made his last visit to North America in 1907, and in 1909 he embarked on a six-month motor tour of the United Kingdom. During this tour he discovered he was blind in his right eye and the sight in his left eye was dimmed by cataracts. The rest of the tour had to be cancelled. On 21 August 1909 a surgeon at Guy's Hospital removed his right eye. Despite this setback, in 1910 Booth campaigned in the Netherlands, Denmark, Germany, Switzerland and Italy. On his return to England, he embarked on his seventh and last motor tour.