Near Sighted (3.5e Flaw)
From D&D Wiki
 Near Sighted [General]
Character finds it hard to see things at greater distances.
Effect: The Penalty for Spot checks increases to -3 per 10 feet of distance. Also due to their inability to see things coming they get a -4 Penalty to Initiative Checks.
Benefit: Character Gains the Combat Reflexes Feat even if he does not have the normal prerequisites for that feat.
Normal: Spot checks have a penalty of -1 per 10 feet.
Roleplaying Ideas: Characters can hide their faces with large brimed hats, and perfer to listen to what is around them. Due to there vision problems, they focus on reacting to threats closer to them. They may also ally with someone that is better at disitance fighting or just less effective at close combat.