I don't think the delivery method has changed from this. Same application as the mice and rats as far as I know..
"Finally, the mechanism of application is a needle. Unlike most appliance applicators, it does NOT have to be approved by the FDA. A needle is recognized by the FDA as a standard mechanism of application and even more importantly every eye surgeon utilizes a needle in surgical procedures dealing with the eye. Therefore, you don’t have to teach the “old dog new tricks” which is a huge barrier when normally introducing new therapies utilizing a delivery device. " http://investorshub.advfn.com/boards/read_msg.aspx?message_id=41946204