The Eye Doctor Intensive Relief Eye Drops treats severe and persistent dry eye conditions. Relieving dryness, irritation and burning caused by heating or air conditioning, smoke, dust and pollen. The Eye Doctor Intensive Relief Eye Drops treats severe and persistent dry eye conditions. Relieving dryness, irritation and burning caused by heating or air conditioning, smoke, dust, pollen and after surgery on the eye with just one drop. Tears keep your eyes wet, smooth and help focus light so you can see clearly. They also protect your eyes from infections and irritations, like dirt and dust. Every time you blink, a thin layer of tears called a 'tear film' spreads across the surface of your eye. When your eyes don't make enough tears or your tears don't work the right way, you can get dry eye. The Eye Doctor Intensive Relief preservative-free eye drops contain a naturally occurring substance called Sodium Hyaluronate (0. 3%) which replenishes the tear film which effectively relieve severe