Originally Posted by
Dutchman95
Anderson
I did the CAD test at Heathrow Medical Services a month ago. I wasn't very hopeful at all as I am terrible at the Ishihara plates, but after a first attempt close to borderline I managed to get a pass (threshold 5.81 with 6 being the deutan limit) after three more rounds. Surprisingly, my yellow-blue vision was considerably better than 'normal' people (0.69).
Can I ask what the CAD test is like? I'm booked in with Heathrow Medical Services in a week and I know I'll fail the ishihara test, I asked to do one at an eye test earlier in the month and I failed it there although the guy said some people do have it worse than me.