Well, yes, dry eyes can just lead to keratitis. Generally speaking, dry eyes can be a normal eye problem, which will occur to many people. On the other hand, if your eyes suffer dry eyes, keratitis can be possible too, for it is the inflammation of the cornea. At the same time, you need to know that when keratitis occurs, red eyes, blurred vision, or light sensitivity will accompany too. For other causes, infections, injury, and a large variety of underlying medical diseases are the common ones. To treat it, you can have some olive oil and that can be effective. Also, tea tree oil is a good way to treat dry eyes. And if dry eyes can be cured, keratitis can recover too. By the way, cold compresses can be used to treat the inflammation occurring to eyes.