If you've ever had an occasional case of "dry eyes," it can feel like you're right in the middle of a hurricane. And if you're one of the approximately 5 million people who suffer from Dry Eye Syndrome (or simply "dry eye"), it can feel like the eyes are filled with grit and have a stinging sensation, redness, fatigue and/or light sensitivity. The syndrome can even adversely affect vision and reduce the ability to focus, distinguish objects or measure distance accurately.