Dry eye is a condition affecting many people. Sometimes, it can occur due to seasonal allergies. However, it is more commonly caused by tear instability and inadequacy. It is very uncomfortable to spend your days with dry eye and even worse when you wear contact lenses.

Refractive errors are the most common eye conditions in the world. Of the three refractive errors—hyperopia, myopia, and astigmatism—the more common is myopia. All three can be corrected using contact lenses and glasses of different prescriptions.