"I consider myself a Man of Vision", while the rest of the world wears bifocals!" -- Paul Newman as Butch in "Butch Cassidy and the Sundance Kid".
Unlike ol' Butch I wear bifocals and have a devil of a time spotting aircraft. I'm easy meat if I'm flying alone online. If there's heavy enemy action at Hawkinge the only way I can survive is flying tree-high tight figure 8's following the hilly contours -- hoping to spot a strafing 109 before he spots me! It works about 1 time in 10........