Is change in vision a symptom if severe dry eye? I notice for months my eye sight has not been the same some days they are very clear. .

Dry eyes. Can cause blurry vision. Often, the patient will also notice some other symptoms as well. These include burning, foreign body sensation, redness, excess tearing, etc. It's easy to try a course of artificial tears several times a day for a couple of weeks to see if your symptoms improve. If not, then you should see an ophthalmologist to evaluate this further.