I sent you email recently, cause you contacted my vet to get a new Rx just a day or two before my appt, then mailed me two additional bottles. Buddy had mild calcium deposits on his eyes as a result of using those drops once per day. Now he wants us to only use one drop in both eyes three days per week, along with an otc drop similar to Alaway twice per day - every day. I asked that you cancel future deliveries until I am running low, which will be awhile. I have a follow up appt in 2 months and asked if I could still return the new drops if vet tells me that it is no longer needed after that visit. I have not received a reply.