Dry eye & ocular surface damage due to some conditions &/or diseases eg, post-op eye surgeries (cataract surgery, LASIK, prolonged use of antiglaucoma drugs). Superficial keratitis, Sjogren syndrome or primary dry eye syndrome (keratoconjunctivitis sicca). Temporary relief of dryness, burning & ocular fatigue induced eg, by dust smoke, dry heat, air conditioning, extended computer screen use or wearing of contact lenses.