Description & Use Causes of dry eyes include environmental factors, such as dust, smoke, air conditioning, wind, drafts, cosmetics, or reduced blink frequency due to prolonged television watching or concentrated computer screen work. Dosage Instil 1 or 2 drops in the affected eye(s) as needed or as directed by your eye care professional. Active Ingredients Systane Ultra Lubricating Eye Drops, moisturises the surface of your eyes for fast, long lasting relief from signs and symptoms of dry eyes which include dryness, irritation, burning, stinging, grittiness or foreign body sensation. Contains Polyethylene glycol 4 4mg/ml and propylene glycol 3mg/ml. hydroxpropyl guar, sorbilol, aminomethylpropanol, boric acid, potassium chloride, sodium chloride and polyquad (polyquaternium-1) .1% preservative. Storage & Disposal Discard container 6 months after opening. Warnings Consult a doctor if no relief within 72 hours