Prime Minister Boris Johnson said he regretted the "confusion and anger" caused by the Dominic Cummings row - and defended the advisor's claim that he drove 30 miles to "test his eyesight".
He faces pressure to sack the Downing Street aide, who took his wife and child 260 miles to Durham during the lockdown - and drove 30 miles to Barnard Castle on Easter Sunday.
In an extraordinary press conference this afternoon, Cummings said he made the Barnard Castle trip to test his eyesight while recovering.
At the daily Downing Street press conference, the Prime Minister said his own eyesight had suffered after he contracted coronavirus.