Hi,
Why are you looking to go so quick into surgery, have you looked into all the options, 2 pairs of glasses, contact lenses.
Your sight deteriates very quickly in bright lights and with age (as said by others). It is not wise to become a captain with the frame of mind, that you can see without your glasses, but you get head aches. Because the concentration of a captian is rather great. I would also say that if you are looking at detailed charts your eyes are going to be constantly refocusing.
Your best bet is to book an optisions appiontment and see what they say,they know your eyes better then anyone else.
If you go to a consultant at a eye surgery clincic they will be looking for costumers that is why I advice you go to your normal optision first.
Good Luck
Tom