The cornea is where the miracle of vision ALL begins! It is a clear, dome-shaped structure which can be thought of as the window of the eye. However, this window also does the “Lion’s share” of focusing light and facilitating clear vision. As such, it is not a stretch in the least to say that if your cornea is not healthy; your vision WILL be compromised! And as if that was not enough, an unhealthy cornea can also be terribly uncomfortable!