I've had chronic dry eye for a couple of years now, and asked for a prescription when I visited my eye doctor today. He prescribed Restasis, which is extremely expensive without insurance. With my insurance, the cost goes down to "only" $105 for a 90-day supply. Luckily, his office gave me a manufacturer discount card, which brought the price down to only $30. Also, his nurse told me how to make that 90-day supply last a full year. At any rate, does anyone have any experience with these drops? How good are they compared to OTC drops like Systane Restorative Formula (what I have been using up until today)?