Drugs Lubricants & Tear Substitutes 8 Lubricants & Tear Substitutes Artificial tear preparations and ocular lubricants used to supplement the tear film in dry eye disease and other ocular surface disorders. They work by increasing tear film stability, replacing deficient aqueous or mucin layers, and protecting the ocular surface epithelium.
Carboxymethylcellulose (CMC) Cellulose-derivative artificial tear / demulcent
Hydroxypropyl Methylcellulose (HPMC / Hypromellose) Cellulose-derivative artificial tear / demulcent
Polyvinyl Alcohol (PVA) Synthetic polymer artificial tear / demulcent
Sodium Hyaluronate (Hyaluronic Acid) Biological polymer artificial tear / viscoelastic demulcent
Hydroxypropyl Guar (HP-Guar) Guar-based gelling artificial tear / demulcent
Polyethylene Glycol 400 (PEG 400) Synthetic polymer demulcent / lubricant
Lipid-Based Tear Emulsions Lipid-containing artificial tear / emulsion-based tear substitute Was this helpful? 
