Well, yes, eye infection can cause blurry vision, in some degree. As we know that eye infection can be caused by bacteria, viruses or environmental agents, such as pollens and other irritants. So in many cases, people get eye infection when they are with irritants. But you also should know that blurry vision is also can be caused by the bacteria, and other allergies. So when your eyes are infected by some viruses, you can get eye infection. At the same time, your blurry vision can occur too. So you should be careful about it. To treat your symptom, you can just take some measures to find out the direct infection cause. So you can figure out the problem. Sometimes, just going to have an eye exam will be considerable. Besides, you should know that blurry vision can also be caused by some other factors, such as Macular degeneration.