TB10er
I was told I had to have specs as my eyesight was the equavalent of boots mildest reading glasses and I hated wearing specs so I had them tinted to look like sunglasses!
With brown tint I was asked to do the colour test which I failed miserably much to my amazement.
Until it dawned on me that with the best colour vision possible looking at yellow through blue glasses would show green etc. Using brown tint would distort the colours!
My protests were greeted with the fact that all the vision tests must be done with prescription lenses.
I presume from that that pilots with excellent vision and colour perception are illegal flying sporting their latest set of trendy RayBans.
Dont think you have to have both sets with you?
Pace