Alternative/holistic know-it-alls...advice, please!

Just putting the word out there- can anyone recommend ways that I can treat my dry, scratchy eyes through diet or natural remedies? I have dry eyes (not from allergies) and they are constantly red, scratchy and irritated. I'm using a prescription drop called Patanol, as well as Systane over the counter drops, but I'm wondering if there's something I can be eating that helps eye health.

If you have any advice, let me know!