Shelley-I agree with Neil. If you've given four and one-half months to Restasis and are unsure, go a bit longer. I've heard some said it took at least 6 months and others 12 months. I know it's a long time either way. But, once you've started I'd give it longer.
I tried Restasis twice. Once for 6 weeks. Another time, more recently for 6 or 7 months. I did not believe there was an improvement after that length of time, although it's hard to "be sure." My RX insurance coverage changed when I went from working to disability. I used to pay $10/copay for Restasis and it became 50%. That was my deciding factor.
Don't trust any refractive surgeon with YOUR eyes.
The Dry Eye Queen