There are many reasons that I would think long and hard before having laser eye surgery. However, it seems that with career choices depending on their eye-exams, a third of the US Navy officer academy is opting for the treatment. This has caused the navy problems, since they had relied on the fact that many people would not pass the requirements for certain posts to ensure that good people were well distributed throughout the organisation. Now that this randomising factor is much reduced, it is causing structural problems, particularly in the recruitment of submarine officers.
This bit was also interesting:
The procedure used by the Navy, photorefractive keratectomy, or PRK, is different from the one used on most civilians. That approach, known as laser-in situ keratomileusis, or Lasik, requires cutting a flap in the surface of the cornea and then using a laser to reshape the cornea. But military doctors worry that the flap could come loose during combat, especially in a supersonic fighter.
So rather than slicing into the cornea covering, Navy doctors grind it away. The approach requires a longer recovery as the covering re-forms but leaves the eye more stable.
One in 200 have complications, apparently.