I tired many things for my dry itchy eyes. What worked for me was natural raw Honey or Manuka Honey. You can dab it on the eyes straight or dilute it in a drop of pure water.
We see a lot of people with dry eye. Recently, we have had a number of client start using a manuka honey drops for dry eye that is caused by inflamed eyelids. This is known as meibomian gland dysfunction of posterior blepharitis.
In the drop form it is dosed 4 times per day and in the ointment form once or twice per day. People report that its stings a bit especially the ointment.
People find that it helps and when we look at their eye lids they do look a little less inflamed. We have more information on our blog http://www.drwetperth.com/optimel/. I won't mention the product name, we don't sell it but the drops are widely available in pharmacies. The ointment is only sold through certain optometrists.