I am looking into the draw backs to having a slightly near sighted character. the main reason for the flaw is role-play based. We are Running a "back to basics lvl 1 campaign" and the character hails from a vary proud tradition of archers but is a book worm I thought having him a little near sighted would be a nice story hook for not fallowing the family traditions and being a noble hunter
you could simply not invest in the perception skill, or opt not to make perception checks for far away stuff. no need to take penalties for role-play.
if youre looking for a chracter who is specifically working with it, try an oracle with the clouded vision curse:
http://www.d20pfsrd.com/classes/base-classes/oracle/oracle-curses
the darkvision it gives can be fluffed as used to sitting and reading in dim rooms and such.