I did infer my answer was tongue in cheek. Seriously, I think that test is outdated, a proper eyesight test should be part of gaining a driving licence. The safety of vehicles has constantly been updated yet the potential new drivers eyesight, which lets face it, is the most important factor in driving, is still based on a nearly ninety year old rule. Over that period vehicles have become more prolific and faster.
HG drivers need medicals, safety on the roads should include the same for all drivers. I am at the age when my licence is renewed every three years, on the application form I only have to state my eyesight is good enough, proof is not required. I believe this is wrong, everybody should have to provide proof their eyesight is good enough for driving. I'm not aware of any statistics but I do wonder how many accidents are caused by bad eyesight.