My name is Dawn. I have 2 Himmys and 1 Persian. Have had cats for over 55 years - mostly exotics. My Persian, Calista, has a corneal ulcer that we have been treating on and off for over 2 years. Ulcer is from a Herpes Virus - she was a rescue from the streets of Qatar. S Has anyone had any long term success with treating a corneal ulcer?