OK, so start by querying whether the test was done in the first place, then argue that even if the test was done that it would not have been done under optimal conditions and any results from it could not be relied upon and that these sorts of tests are indicative rather definitive, unlike the eye test that was done by a qualified optician using calibrated equipment.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems
Gordon thank you i will look at doing that, i appologise for not explaining better in my first post and i am very aware of your time constraints and helping other other members. Many thanks Strato