Why do my eyes feel so dry with restasis in them?

Different dry eye: Restasis only treats the part of dry eye due to inflammation and helps you to make more of the aqueous part of the tears. Tears are complex and have three main layers, a watery or aqueous part, a lipid or oily part and a mucous or protein part. These have to work together to relieve dry eyes. Often the oily laryer is too thin, so the tears evaporate quickly, leading to dry spots, dry feeling.