My shih-tzu was having so many dry eye problems; an eye specialist vet had her on several $50/week meds (which weren't working) and wanted to redirect her saliva glands to her tear ducts (when she was 11 years old!) - especially difficult on a shih-tzu who has a "smashed in type face". Instead we went to a new wonderful vet who instead has her on Neo-Poly-Dex drops once or twice a day (about $9) and APEXA Artificial Tears every several hours (about $4). This works better than the expensive meds and we have a happy puppy - with no ridiculous surgery. Just keep making these artificial tears!!!