You will have to get this restriction removed by your authority, the JAR AMEs are all too keen to get restrictions on medicals, trying to get them lifted is a nightmare.. too many rubber stamp johnnies in JAR land... you would have the same problem if you wanted to go to Asia etc..the airline can stipulate it will only take candidates with no medical restrictions if it wants, it is nothing to do with being JAR compliant, it is the airline's choice to accept restrictions or not..good luck