I have just had the eye scan at OASC (for contact lenses) and the image they now have on file is amazing. The best I could compare it to is the 3d image you can get of an unborn child. (No not my eye you plonker, but the quality of imagery) The scan is also indicative of disease beyond the eye itself. It would be impossible to avoid being found out if you were to deny any opthalmic surgery.