I first took her to my regular vet she sent me to a certified ophth. vet. for a second opinion… my regular vet thought it was a ulcer which was what sandie was treated for the first time in Aug. She goes back for a recheck on the 31st .... i went on amazon.com and found the ointment i was given for nightly .. and orderd a 6 pack of it. also bought her a pink pair of Doggles which she isnt very fond of but like any thing else new to her she will get used to it ...