What modifiers / penalities, should an ST apply? (Blinded Ranger Archery)

[Gwiber]

My party has a unique magical ability where we can hear each others thoughts, and see through each others eyes.

My Ranger gets slapped with Blindness/Deafness, and misses his save, goes blind.

We tries to work out what kind of penalties the ranger would be looking at if one or more of the party members LOOKED at his target for him. Providing him some visual cues.

We came up with something for the moment, but is there any rule for this kind of situation? Or do any of you have any recommendations.

[We decided the target would count as having concealment of 20%, and a -4 to hit for the ranger, form the blind rules.]

[Claxon]

The target is still blind, I would apply full penalties for being blind.

Being able to see through others eyes probably wont be enough to counter the disassociation from not being able to see your weapon and opponent from your normal perspective.

Edit: I would allow him to know where things are in relation to him if people are looking around so he can make he way around, were normally if he were blind he wouldn't even know what direction things were in.

There are no exact rules for this situation because you have a special ability granted by your GM that doesn't exist in the rule books. He has to decide how it will work.

[blahpers]

Seeing through someone else's eyes might actually make his aim worse, as his vision would be at odds with his hearing and other senses. At best, it'd work like seeing through a mirror to attack a monster with a gaze attack.

[Rynjin]

So, err, this may be a stupid question but why don't you just fix his Blindness?

Dispel Magic can get rid of it if nobody has Remove Blindness/Deafness.