he stated that the regulations demanded that eye tests are carried out using the prescription lenses you use for flying
Sorry, but that is just not so. What "
eye tests" anyway ? A lot of the tests on eyes routinely carried out by AME's just cannot be done while wearing glasses, whether tinted or otherwise. Uncorrected Visual Acuity is an eye test, so how do you do that wearing spectacles ? ! ! Similarly, routine ophthalmoscopy (the lens/light instrument which allows the inspection of the retina) is an eye test, but that would not be done wearing glasses either. As I said before, Ishihara plates are normally presented to "
naked eyes" (if you'll pardon the expression ! !
Frankly, I think
Loose Rivets is right on this one. Challenge the AME to show you the chapter and verse of the regulations he is quoting, or else be prepared to refund the expenses you have unnecessarily incurred.
Good luck !