Well, no of course, it cannot be permanent. And generally speaking, for many people, blurred vision can happen at any time, and it can be a slight temporary condition or indication of something more serious. And also, you should know that blurred vision can be associated with health conditions such as diabetes and may be indicative of a more serious eye condition. Sometimes, it may even be a side effect of migraine. For your situation, you may need to take Vitamin A supplements which are an excellent idea to ensure that you are getting the proper levels. In other words, you can use certain foods as a home remedy for blurred vision such as spinach, milk, cabbage, and carrots. Also, Chicory root is an excellent natural cure for any sort of vision problems, especially blurred vision too. So just have a try.