I called the manufactor Allergan they are the ones that are coming out with the cyclo drops. They said it may be another 18 months before they are FDA approved. Some Drs are prescribing it anyway and having pharmacist compound it for them. It has been used for cornea transplants for years and on dogs. I have used it and it burns really bad and did not help me that much. I have severe dry eyes and cornea abrasions.