<<Disclaimer: Verify this information before applying it to your situation.>>

Please forward to your friend that although celiac disease and sjogren's
disease may be correlated, going on the gluten free diet will NOT correct the
dry eyes.  I have the same two conditions and I do follow the diet strictly.

The dry eyes still exist because the "dry eyes" symptom is sjogren's and is
not directly a part of celiac disease.  They are two separate (although
sometimes correlated) diseases. Please do not give her false hope that this
will change.  Placing this expectation on her will only create guilt and
frustration with the diet.