BETHESDA, Md. — Almost every Thursday during the academic year, a bus carrying a dozen or so Naval Academy midshipmen leaves Annapolis for the 45-minute drive to Bethesda, where Navy doctors perform laser eye surgery on them, one after another, with assembly-line efficiency. Nearly a third of every 1,000-member Naval Academy class now undergoes the procedure, part of a booming trend among military personnel with poor vision. Unlike in the civilian world, where eye surgery is still largely done for convenience or vanity, the procedure’s popularity in the armed forces is transforming career choices and daily life in subtle but far-reaching ways. Aging fighter pilots can now remain in the cockpit longer, reducing annual recruiting needs. And recruits whose bad vision once would have disqualified them from the special forces are now eligible, making the competition for these coveted slots even tougher. But the surgery is also causing the military some unexpected difficulties. By shrinking the pool of people who used to be routinely available for jobs that do not require perfect eyesight, it has made it harder to fill some of those assignments with top-notch personnel, officers say. When Ensign Michael Shaughnessy had the surgery […]