A225HVY: Your avatar is irritating. Rant over.

I have been told that varifocals can be adjusted specifically for pilots inasmuch as the area on the lenses used for each type of focus is different. I believe the centre area is wider. There are about 4 different areas, as opposed to the original type which just had a half-moon area at the bottom of the lens. The cost is £275 as opposed to £125 for standard lenses!!