Two Ales, Ailish!
DISCLAIMER: Your Steps and Tasks may be different
Talk to Iao in the Green Rose Pub (Loc=loc:15059,27271,1,6445 dir=265) who will start quizing you on if you notice something missing, which happens to be his glasses.
He wishes you to go find them for him as he has lost them somewhere but doesn't happen to know where but starts listing 3 places he has been recently.
So first stop is to see Vivienne the Scale armor merchant in Ceannai. She mentions she has not seen the glasses but would love to see Iao again and get some more of his lovely wine.
Next stop is to see Sentinel Casidhe in Tir Uphost, Casidhe says that Iao deffinately had the glasses before departing, mentioning he is surprised he could see straight with as much wine as he drinks.
Last stop is Brynn the Enchanter staff merchant in Caille. She mentions that Iao fell off his horse close to town and while searching the grass close by she found the glasses. She is impressed by the runes on the glasses. She gives you the Runed etched eyeglasses.
Back to Iao in Tir Na Nog who is happy for the return of his spectacles and to show you his appreciation he gives you one of his lovely wine glasses.