blargney the second said:
How long has he been blind? People who have been blind for a while find some way to compensate for the lost sense.
Indeed, so here's my suggestions for making the blindness as easy to deal with (for the Druid) as possible -
1. Add in a special quality that forbids him from taking ranks in Spot and allows him to substitute Listen checks for all Spot checks (unless the target makes no sound - an average character can't Spot something that is invisible, this Druid CAN see something that is invisible, but a noiseless creature is pretty much invisible to them). You might want to also consider giving the Druid Scent.
2. Give the Druid some form of Blindsense or Blindsight. Blindsight would make more sense, considering the sensitivity of people who are blind from birth. You could be talking to them, whip a baseball at them unexpectedly, and they're likely to dodge or catch it (but please, be nice and don't do this). Blindsight 30' is really nice, but it still has disadvantages. The Druid will be unable to clearly see anything out of that 30' range, so long-range spells are still a problem. I would recommend allowing the Druid to expend a Move action to fully concentrate and expand their Blindsight range to 60' for certain situations.
3. Make the Animal Companion (yes, you should DEFINITELY use one) a dog or a wolf, depending on the type of Druid this is. If this is more of a friendly woodlands hermit, use a dog; if they're a savage protector of the forest, use a wolf. In addition, give the Animal Companion the Familiar abilities Empathetic Link at 1st level and Speak With Master at whatever seems appropriate. The Animal Companion will function as sort of a guide dog, in order to inform the Druid of dangers outside of the 30' or 60' Blindsight range.
I think that in this case, blindness isn't so much a disability for the character as it is a different way to play. It might incur an LA, though, so feel free to tweak it as much as you want. Or, you can simply accept this and play the Druid as something between an ECL 5 and ECL 6 character.