As all lawyers know, the letter and the spirit of regulations are two very different things. FAR Part 67 outlines the medical requirements for first-, second- and third-class medicals. The JAA’s JARs (Joint Aviation Requirements) resemble Part 67 in many ways, with the major difference a tighter focus on the specifics of the airman’s physical. A brief rundown of the differences shows the increased room for grassroots interpretation offered to American AMEs.
For instance, the JAR first-class medical certification requirement for vision requires “a comprehensive eye examination, including a measurement of intraocular pressure (which, if elevated, sometimes indicates the presence of glaucoma) during the examination for the first issuance of a medical certificate and again every five years until age 40 and every two years thereafter. Less comprehensive eye examinations are conducted during intervening examinations.