FYI, I emailed Allergan to find out if their drops that I use, Restasis and Refresh, are gluten-free. This is what I heard back:
Thank you for your interest in ALLERGAN and REFRESH® CLASSIC
(polyvinyl alcohol 1.4%, providone 0/6%) Lubricant Eye Drops
Preservative Free, RESTASIS® (cyclosporine ophthalmic emulsion) 0.05%
Sterile, Preservative-Free, RESTASIS® Contacts.
We understand that you would like to know if REFRESH Classic,
Restasis® and REFRESH Contacts are gluten-free. To the best of our
knowledge, these products do not contain corn, wheat, oats, barley, rye,
spelt or ingredients derived therefrom.