Karnaz or Karnas from Przemyśl

Any information available on the Karnas or Karnaz family from Przemsyl?

The ancestral nest of the bearers of the Karnas and Karnaś surnames is present-day Poland's SE corner, although it had originally stretched into prewar Polish territory now belonging to Ukraine. The root may be "karny" (penal) or an Old Slavonic root *"krnъ" which once meant crippled. For more information please contact research60@gmail

My ancestors Karnas came from Drohobyczka and Dubiecko near Przemsyl.
c.karnas@sympatico.ca

My Grandmother Yadwiga Karnas Opalka, my Father Michael Opalka and my Aunt Edna also came from Dubiecko/Przemsyl about 1908 and eventually settlled in Upstate NY. My wife and I will be visiting Poland late August 09 but will not visit that area, farthest S/E would be Krakow. I spent a lot of time trying to include that area in the tour but would have to go with a customized tour which is very expensive, so I just decided on Zakopane to Gdansk and all in between.