Maybe one needs to test their eyesight before being sure of being fit to drive...It would be for a court to decide, were you stopped, whether you would have a need to include a drive so far from home, just to get an MOT done, or whether you were simply using it as an excuse to make illegal use of a vehicle with no MOT. I vaguely remember, there was such a prosecution long ago, where the owner was called upon to explain why he was driving it such a distance, for the test?