The cause of rosacea will be induced by vasomotor disorder, cysticercus repeated infection, drinking, mental stress, rage, dyshormonism. It would also induce the blepharitis, conjunctivitis, keratitis or iriditis. The sympotom of it will be dry eyes, foreign body sensation, tears, photophoby and blur vision.
The dry eye is the common term of xerosis of conjunctiva. It's the eyes symptom of tear film's pathological change, thus the cornea and conjunctiva without normal moist and feel dry. It will lead to blurred vision in a long time. The reasons of the cause of dry eyes could be inflammation and immune system abnormal as well as lack of vitamin A. The two former reason may caused by infection, while the last one is caused by the nutrient condition. From the above words we can see, feel dry eyes may be caused by various kinds of reasons, one of it is rosacea, but not the only reason.