Top shelf glasses are all foggy and not getting cleaned-mdb-5000AWW

Your sprayer arms may be clogged.
The upper arm attaches to a tube in the back of the dishwasher. If the support clamps come loose, the upper spray tube will not be flush with the tube and can't carry water to the sprayer arms. Also the sprayer arms can become clogged with paper remnants, bone fragments, or pieces of peeling. You'll need to remove the sprayer arm and flush it at your sink. If there is a jet that is clogged, tweezers will help remove the residue.
I hope this helps. If it does, please come back to Fixya and rate my answer